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4 Commits

Author SHA1 Message Date
Aiden Cline b41fbcf9bc docs(core): clarify subagent session input 2026-08-07 03:39:01 +00:00
Aiden Cline 95b488cc3e docs(core): clarify subagent conversation reuse 2026-08-07 03:35:16 +00:00
Aiden Cline 34c83bbf18 docs(core): align subagent resume guidance 2026-08-07 02:11:05 +00:00
Aiden Cline 5e5888a24f feat(core): continue subagent sessions 2026-08-06 21:20:51 +00:00
3544 changed files with 307807 additions and 594570 deletions
+6 -2
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@@ -281,6 +281,7 @@ jobs:
build-electron:
needs:
- build-cli
- version
if: github.repository == 'anomalyco/opencode' && github.ref_name != 'v2'
continue-on-error: false
@@ -377,14 +378,16 @@ jobs:
env:
OPENCODE_VERSION: ${{ needs.version.outputs.version }}
OPENCODE_CHANNEL: ${{ (github.ref_name == 'beta' && 'beta') || 'prod' }}
OPENCODE_CLI_ARTIFACT: ${{ (runner.os == 'Windows' && 'opencode-cli-windows') || 'opencode-cli' }}
RUST_TARGET: ${{ matrix.settings.target }}
GH_TOKEN: ${{ github.token }}
GITHUB_RUN_ID: ${{ github.run_id }}
- name: Build
run: bun run build
working-directory: packages/desktop
env:
NODE_OPTIONS: --max-old-space-size=4096
OPENCODE_VERSION: ${{ needs.version.outputs.version }}
OPENCODE_CHANNEL: ${{ (github.ref_name == 'beta' && 'beta') || 'prod' }}
SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH_TOKEN }}
SENTRY_ORG: ${{ vars.SENTRY_ORG }}
@@ -402,7 +405,8 @@ jobs:
env:
OPENCODE_CHANNEL: ${{ (github.ref_name == 'beta' && 'beta') || 'prod' }}
GH_TOKEN: ${{ steps.committer.outputs.token }}
CSC_KEYCHAIN: build.keychain
CSC_LINK: ${{ secrets.APPLE_CERTIFICATE }}
CSC_KEY_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
APPLE_API_KEY: ${{ runner.temp }}/apple-api-key.p8
APPLE_API_KEY_ID: ${{ secrets.APPLE_API_KEY }}
APPLE_API_ISSUER: ${{ secrets.APPLE_API_ISSUER }}
@@ -1,63 +0,0 @@
---
name: rtl-aware-development
description: OpenCode Desktop should be RTL-aware. Use when implementing or reviewing RTL/LTR behavior in the web app, desktop app, CSS, menus, scrolling, resizing, icons, mixed-direction text, or Electron title bars.
---
# RTL-Aware Development
Treat direction as independent from language. Test English in both directions as well as real RTL and mixed-script content.
## Guidelines
- Set `lang` and `dir` on the document, and propagate direction through component providers used by portaled menus and popovers. Do not change the selected locale merely to force RTL.
- Keep DOM and focus order semantic. Flexbox and Grid already follow `dir`; do not add `row-reverse`, CSS `order`, or reversed markup just to mirror a layout.
- Prefer logical CSS for semantic layout. Reserve physical coordinates for pointer positions, canvas geometry, native window controls, and other genuinely physical placement.
```css
/* Avoid */
padding-left: 12px;
right: 0;
border-right: 1px solid;
text-align: left;
/* Prefer */
padding-inline-start: 12px;
inset-inline-end: 0;
border-inline-end: 1px solid;
text-align: start;
```
- Isolate mixed-direction text. Use `dir="auto"` or `<bdi>` for unknown text; keep code, URLs, IDs, and filesystem paths LTR without forcing the surrounding component LTR.
```html
<span class="file-row"><bdi dir="auto">README.md</bdi></span> <bdi dir="ltr"><code>C:\src\app.ts</code></bdi>
```
- Mirror directional meaning, not every image. Back/forward, previous/next, disclosure, indentation, and directional progress may need mirroring. Do not mirror brands, clocks, media controls, charts, or text. Reverse physical gradients, `translateX`, SVG transforms, and animation deltas explicitly.
- Map interactions through direction. `clientX` remains physical; resizing a logical edge needs an RTL-aware delta. Logical previous/next keyboard controls may swap ArrowLeft/ArrowRight. Follow the relevant WAI-ARIA widget pattern.
- Do not assume LTR scrolling. RTL `scrollLeft` can start at `0` and become negative. Prefer `scrollIntoView({ inline: "nearest" })` or a tested direction-normalizing helper.
- For Electron title bars, prefer native caption controls and use `titleBarOverlay` plus `env(titlebar-area-*)` for the safe content rectangle. Keep Windows/macOS native-control avoidance and `trafficLightPosition` physical; keep app navigation inside that rectangle logical. Mark interactive titlebar children `app-region: no-drag`.
- Verify behavior, not screenshots alone. Check computed styles, pseudo-element geometry, hit zones, focus order, keyboard behavior, submenu direction, zoom/scaling, and both LTR and RTL scroll endpoints.
## Test Matrix
- English + LTR
- English + forced RTL
- A real RTL locale + RTL
- Mixed RTL/LTR content, long labels, numbers, code, and paths
- Keyboard, pointer resize, scrolling, menus/submenus, and Electron titlebar controls in both directions
## References
- [RTL Styling 101, Ahmad Shadeed](https://rtlstyling.com/posts/rtl-styling/)
- [CSS-Tricks: RTL Styling 101](https://css-tricks.com/rtl-styling-101/)
- [CSS-Tricks: CSS Logical Properties and Values](https://css-tricks.com/css-logical-properties-and-values/)
- [W3C: Structural markup and right-to-left text](https://www.w3.org/International/questions/qa-html-dir)
- [W3C: Inline bidirectional markup](https://www.w3.org/International/articles/inline-bidi-markup/)
- [MDN: CSS logical properties and values](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Logical_properties_and_values)
- [MDN: `dir`](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes/dir)
- [MDN: `scrollLeft`](https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollLeft)
- [web.dev: Logical properties](https://web.dev/learn/css/logical-properties/)
- [Electron: Custom title bar](https://www.electronjs.org/docs/latest/tutorial/custom-title-bar)
- [WAI-ARIA: Window splitter pattern](https://www.w3.org/WAI/ARIA/apg/patterns/windowsplitter/)
- [Kobalte: I18n Provider](https://kobalte.dev/docs/core/components/i18n-provider/)
+27
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@@ -252,6 +252,33 @@ These are not strictly enforced, they are just general guidelines:
For net-new functionality, start with a design conversation. Open an issue describing the problem, your proposed approach (optional), and why it belongs in OpenCode. The core team will help decide whether it should move forward; please wait for that approval instead of opening a feature PR directly.
## Trust & Vouch System
This project uses [vouch](https://github.com/mitchellh/vouch) to manage contributor trust. The vouch list is maintained in [`.github/VOUCHED.td`](.github/VOUCHED.td).
### How it works
- **Vouched users** are explicitly trusted contributors.
- **Denounced users** are explicitly blocked. Issues and pull requests from denounced users are automatically closed. If you have been denounced, you can request to be unvouched by reaching out to a maintainer on [Discord](https://opencode.ai/discord)
- **Everyone else** can participate normally — you don't need to be vouched to open issues or PRs.
### For maintainers
Collaborators with write access can manage the vouch list by commenting on any issue:
- `vouch` — vouch for the issue author
- `vouch @username` — vouch for a specific user
- `denounce` — denounce the issue author
- `denounce @username` — denounce a specific user
- `denounce @username <reason>` — denounce with a reason
- `unvouch` / `unvouch @username` — remove someone from the list
Changes are committed automatically to `.github/VOUCHED.td`.
### Denouncement policy
Denouncement is reserved for users who repeatedly submit low-quality AI-generated contributions, spam, or otherwise act in bad faith. It is not used for disagreements or honest mistakes.
## Issue Requirements
All issues **must** use one of our issue templates:
+2907 -982
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+2 -6
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@@ -288,12 +288,8 @@ new sst.cloudflare.x.SolidStart("Console", {
server: {
placement: { region: "aws:us-east-2" },
transform: {
worker: (args) => {
args.compatibilityFlags = $resolve(args.compatibilityFlags).apply((flags) => [
...(flags ?? []),
"global_fetch_strictly_public",
])
args.tailConsumers = [{ service: logProcessor.nodes.worker.scriptName }]
worker: {
tailConsumers: [{ service: logProcessor.nodes.worker.scriptName }],
},
},
},
+4 -4
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@@ -1,8 +1,8 @@
{
"nodeModules": {
"x86_64-linux": "sha256-F/oXgpvv6R+pcgGDZreaGizTwgf9XBJRbssRdAPu+oc=",
"aarch64-linux": "sha256-i36RvDX3UTaJKVM9aVNwlBkyOak3BTaCUArBxmtagm0=",
"aarch64-darwin": "sha256-vyCB+fo8arL1f4BINZDychAvw+A/IBoHd99zRI1BGik=",
"x86_64-darwin": "sha256-JorAz8VIEzWGaNk5RJNvlR3w2JWRmosuHBKTgbEIv/k="
"x86_64-linux": "sha256-RFek0QoEEjsgbqmTE/SxQAmPtYyzs0IPR2ugFn5Okrs=",
"aarch64-linux": "sha256-BmAxapY1YrAFn7mVq3/6A9+6Au5UIvSqBboHMkyJH3I=",
"aarch64-darwin": "sha256-Sx3bGWQqLlgoa/RudJxanjSzhFRNklckT2ffnO2I5F4=",
"x86_64-darwin": "sha256-CMOhiisHNowg06qadvgg4K+60zrynglwiT0qKYQ4NiA="
}
}
+27 -20
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@@ -2,18 +2,25 @@
"$schema": "https://json.schemastore.org/package.json",
"name": "opencode",
"description": "AI-powered development tool",
"version": "0.0.0",
"private": true,
"type": "module",
"packageManager": "bun@1.3.14",
"scripts": {
"dev": "bun run --cwd packages/opencode --conditions=browser src/index.ts",
"dev": "bun run --cwd packages/cli --conditions=browser src/index.ts",
"dev:live": "OPENCODE_TUI_CHANNEL=next OPENCODE_PASSWORD=\"$(opencode2 service get password)\" bun run dev --server \"$(opencode2 service status)\"",
"dev:desktop": "bun --cwd packages/desktop dev",
"dev:web": "bun --cwd packages/app dev",
"dev:console": "ulimit -n 10240 2>/dev/null; bun run --cwd packages/console/app dev",
"dev:stats": "bun sst shell --stage=production -- bun run --cwd packages/stats/app dev",
"dev:www": "bun run --cwd packages/www dev",
"dev:storybook": "bun --cwd packages/storybook storybook",
"lint": "oxlint",
"typecheck": "bun turbo typecheck",
"lint:effect-patterns": "ast-grep scan -c script/ast-grep/sgconfig.yml packages/util/src packages/core/src packages/server/src packages/protocol/src packages/cli/src",
"test:lint-rules": "ast-grep test -c script/ast-grep/sgconfig.yml",
"typecheck": "bun turbo typecheck --concurrency=3",
"typecheck:profile": "bun script/profile-typecheck.ts",
"typecheck:profile:packages": "bun script/profile-typecheck-packages.ts",
"upgrade-opentui": "bun run script/upgrade-opentui.ts",
"postinstall": "bun run --cwd packages/core fix-node-pty",
"prepare": "husky",
@@ -27,25 +34,24 @@
"packages/*",
"packages/console/*",
"packages/stats/*",
"packages/sdk/js",
"packages/slack"
],
"catalog": {
"@effect/opentelemetry": "4.0.0-beta.83",
"@effect/platform-node": "4.0.0-beta.83",
"@effect/sql-sqlite-bun": "4.0.0-beta.83",
"@effect/opentelemetry": "4.0.0-beta.101",
"@effect/platform-node": "4.0.0-beta.101",
"@effect/sql-sqlite-bun": "4.0.0-beta.101",
"@npmcli/arborist": "9.4.0",
"@types/bun": "1.3.13",
"@types/cross-spawn": "6.0.6",
"@octokit/rest": "22.0.0",
"@hono/standard-validator": "0.2.0",
"@hono/zod-validator": "0.4.2",
"@standard-schema/spec": "1.0.0",
"@opentui/core": "0.4.5",
"@opentui/keymap": "0.4.5",
"@opentui/solid": "0.4.5",
"@tanstack/solid-virtual": "3.13.32",
"@shikijs/stream": "4.2.0",
"@standard-schema/spec": "1.1.0",
"ulid": "3.0.1",
"@kobalte/core": "0.13.11",
"@corvu/drawer": "0.2.4",
@@ -64,14 +70,15 @@
"dompurify": "3.3.1",
"drizzle-kit": "1.0.0-rc.2",
"drizzle-orm": "1.0.0-rc.2",
"effect": "4.0.0-beta.83",
"effect": "4.0.0-beta.101",
"ai": "6.0.168",
"cross-spawn": "7.0.6",
"hono": "4.10.7",
"hono-openapi": "1.1.2",
"fuzzysort": "3.1.0",
"get-east-asian-width": "1.6.0",
"luxon": "3.6.1",
"marked": "18.0.7",
"marked": "17.0.6",
"marked-shiki": "1.2.1",
"remend": "1.3.0",
"@playwright/test": "1.59.1",
@@ -80,9 +87,11 @@
"@typescript/native-preview": "7.0.0-dev.20251207.1",
"zod": "4.1.8",
"remeda": "2.26.0",
"resolve.exports": "2.0.3",
"sst": "4.13.1",
"shiki": "4.2.0",
"solid-list": "0.3.0",
"string-width": "7.2.0",
"tailwindcss": "4.1.11",
"vite": "7.1.4",
"@solidjs/meta": "0.29.4",
@@ -91,14 +100,15 @@
"@sentry/solid": "10.36.0",
"@sentry/vite-plugin": "4.6.0",
"solid-js": "1.9.10",
"solid-sonner": "0.3.1",
"vite-plugin-solid": "2.11.10",
"@lydell/node-pty": "1.2.0-beta.12",
"resolve.exports": "2.0.3"
"@lydell/node-pty": "1.2.0-beta.12"
}
},
"devDependencies": {
"@actions/artifact": "5.0.1",
"@ast-grep/cli": "0.44.0",
"@types/react": "19.2.17",
"@types/react-dom": "19.2.3",
"@tsconfig/bun": "catalog:",
"@types/mime-types": "3.0.1",
"@typescript/native-preview": "catalog:",
@@ -115,7 +125,7 @@
"@aws-sdk/client-s3": "3.933.0",
"@opencode-ai/plugin": "workspace:*",
"@opencode-ai/script": "workspace:*",
"@opencode-ai/sdk": "workspace:*",
"@opencode-ai/sdk": "1.18.5",
"heap-snapshot-toolkit": "1.1.3",
"typescript": "catalog:"
},
@@ -143,24 +153,21 @@
"@opentui/keymap": "catalog:",
"@opentui/solid": "catalog:",
"@types/bun": "catalog:",
"@types/node": "catalog:"
"@types/node": "catalog:",
"effect": "catalog:"
},
"patchedDependencies": {
"@dnd-kit/dom@0.5.0": "patches/@dnd-kit%2Fdom@0.5.0.patch",
"@ff-labs/fff-bun@0.9.3": "patches/@ff-labs%2Ffff-bun@0.9.3.patch",
"@npmcli/agent@4.0.2": "patches/@npmcli%2Fagent@4.0.2.patch",
"@silvia-odwyer/photon-node@0.3.4": "patches/@silvia-odwyer%2Fphoton-node@0.3.4.patch",
"@standard-community/standard-openapi@0.2.9": "patches/@standard-community%2Fstandard-openapi@0.2.9.patch",
"solid-js@1.9.10": "patches/solid-js@1.9.10.patch",
"@ai-sdk/xai@3.0.102": "patches/@ai-sdk%2Fxai@3.0.102.patch",
"@ai-sdk/mistral@3.0.51": "patches/@ai-sdk%2Fmistral@3.0.51.patch",
"gcp-metadata@8.1.2": "patches/gcp-metadata@8.1.2.patch",
"pacote@21.5.0": "patches/pacote@21.5.0.patch",
"@ai-sdk/google@3.0.73": "patches/@ai-sdk%2Fgoogle@3.0.73.patch",
"@pierre/trees@1.0.0-beta.4": "patches/@pierre%2Ftrees@1.0.0-beta.4.patch",
"@modelcontextprotocol/sdk@1.29.0": "patches/@modelcontextprotocol%2Fsdk@1.29.0.patch",
"effect@4.0.0-beta.83": "patches/effect@4.0.0-beta.83.patch",
"@tanstack/virtual-core@3.17.3": "patches/@tanstack%2Fvirtual-core@3.17.3.patch",
"@ai-sdk/openai-compatible@2.0.41": "patches/@ai-sdk%2Fopenai-compatible@2.0.41.patch"
"effect@4.0.0-beta.101": "patches/effect@4.0.0-beta.101.patch",
"@tanstack/virtual-core@3.17.3": "patches/@tanstack%2Fvirtual-core@3.17.3.patch"
}
}
+343
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@@ -0,0 +1,343 @@
# AI Package Guide
## Effect
- Prefer `HttpClient.HttpClient` / `HttpClientResponse.HttpClientResponse` over web `fetch` / `Response` at package boundaries.
- Use `Stream.Stream` for streaming data flow. Avoid ad hoc async generators or manual web reader loops unless an Effect `Stream` API cannot model the behavior.
- Use Effect Schema codecs for JSON encode/decode (`Schema.fromJsonString(...)`) instead of direct `JSON.parse` / `JSON.stringify` in implementation code.
- In `Effect.gen`, yield yieldable errors directly (`return yield* new MyError(...)`) instead of `Effect.fail(new MyError(...))`.
- Use `Effect.void` instead of `Effect.succeed(undefined)` when the successful value is intentionally void.
## Conventions
Per-type constructors live on the type, not as top-level re-exports. Use `Message.system(...)`, `Message.user(...)`, `Message.assistant(...)`, `Message.tool(...)`, `LanguageModel.make(...)`, `ToolDefinition.make(...)`, `ToolCallPart.make(...)`, `ToolResultPart.make(...)`, `ToolChoice.make(...)`, `ToolChoice.named(...)`, `SystemPart.make(...)`, and `GenerationOptions.make(...)` directly. The top-level `LLM` namespace is reserved for request-shaped call APIs: `LLM.request`, `LLM.generate`, `LLM.stream`, and `LLM.generateObject`. Use `LLMRequest.update(...)` when deriving canonical request data; do not add a duplicate `LLM.updateRequest(...)` path. Two ways to construct the same thing is one too many.
- Keep provider-defined string enums forward-compatible. Expose known values for autocomplete while accepting future values with `Known | (string & {})`; use `Schema.String` at runtime unless rejecting unknown values is required for correctness.
## Tests
- Use `testEffect(...)` from `test/lib/effect.ts` for tests requiring Effect layers.
- Keep provider tests fixture-first. Live provider calls must stay behind `RECORD=true` and required API-key checks.
## Architecture
This package is an Effect Schema-first LLM core. The Schema classes in `src/schema/` are the canonical runtime data model. Convenience functions in `src/llm.ts` are thin constructors that return those same Schema class instances; they should improve callsites without creating a second model.
Primary in-repo integration point:
- `packages/opencode/src/session/llm.ts` is the session-owned orchestration layer that decides whether a request uses AI SDK or this package's native route runtime.
- `packages/opencode/src/session/llm/native-request.ts` is the lowering adapter from opencode's session/AI SDK-shaped data into this package's `LLMRequest` model.
- `packages/opencode/src/session/llm/native-runtime.ts` is the execution adapter that calls raw `LLMClient.stream(request)` and bridges one provider turn of opencode tool calls through this package's typed dispatcher.
- `packages/opencode/src/session/llm/ai-sdk.ts` keeps the default AI SDK path compatible by converting AI SDK stream parts into this package's shared `LLMEvent`s.
Keep this package independent of session concerns. Session auth, permissions, plugins, telemetry headers, and runtime selection belong in `packages/opencode/src/session/llm.ts` and its local adapters.
### Request Flow
The intended callsite is:
```ts
const request = LLM.request({
model: OpenAI.configure({ apiKey }).responses("gpt-4o-mini"),
system: "You are concise.",
prompt: "Say hello.",
})
const response = yield * LLMClient.generate(request)
```
`LLM.request(...)` builds an `LLMRequest`. `LLMClient.generate(...)` reads the executable route carried by `request.model.route`, builds the provider-native body, asks the route's transport for a real `HttpClientRequest.HttpClientRequest`, sends it through `RequestExecutor.Service`, parses the provider stream into common `LLMEvent`s, and finally returns an `LLMResponse`.
Use `LLMClient.stream(request)` when callers want incremental `LLMEvent`s. Use `LLMClient.generate(request)` when callers want those same events collected into an `LLMResponse`.
Filter or narrow `LLMEvent` streams with `LLMEvent.is.*` (camelCase guards, e.g. `events.filter(LLMEvent.is.toolCall)`). The kebab-case `LLMEvent.guards["tool-call"]` form also works but prefer `is.*` in new code.
### Routes
A route is the registered, runnable composition of four orthogonal pieces:
- **`Protocol`** (`src/route/protocol.ts`) — semantic API contract. Owns request body construction (`body.from`), the body schema (`body.schema`), the streaming-event schema (`stream.event`), and the event-to-`LLMEvent` state machine (`stream.step`). `Route.make(...)` validates and JSON-encodes the body from `body.schema` and decodes frames with `stream.event`. Examples: `OpenAIChat.protocol`, `OpenResponses.protocol`, `OpenAIResponses.protocol`, `AnthropicMessages.protocol`, `Gemini.protocol`, `BedrockConverse.protocol`.
- **`Endpoint`** (`src/route/endpoint.ts`) — URL construction. The host, path, and route query live on the endpoint. `Endpoint.path("/chat/completions", { baseURL })` is the common case; pass a function for paths that embed the model id or a body field (e.g. `Endpoint.path(({ body }) => `/model/${body.modelId}/converse-stream`)`).
- **`Auth`** (`src/route/auth.ts`) — per-request transport authentication. Provider facades configure credentials onto the route before model selection, usually via `Auth.bearer(apiKey)` or `Auth.header(name, apiKey)`. Routes that need per-request signing (Bedrock SigV4, future Vertex IAM, Azure AAD) implement `Auth` as a function that signs the body and merges signed headers into the result.
- **`Framing`** (`src/route/framing.ts`) — bytes → frames. SSE (`Framing.sse`) is shared; Bedrock keeps its AWS event-stream framing as a typed `Framing<object>` value alongside its protocol.
Compose them via `Route.make(...)`:
```ts
export const route = Route.make({
id: "openai-chat",
provider: "openai",
protocol: OpenAIChat.protocol,
endpoint: Endpoint.path("/chat/completions", {
baseURL: "https://api.openai.com/v1",
}),
auth: Auth.bearer(),
framing: Framing.sse,
})
```
Route defaults are request-shaping defaults such as `headers`, `limits`, `generation`, `providerOptions`, and `http`. Endpoint host/query belongs on the route endpoint. Selected `LanguageModel` values carry only model id, provider id, and the configured route value. Model capability/catalog metadata lives outside this package; protocol support is enforced by request lowering and typed `AIError`s.
The four-axis decomposition is the reason DeepSeek, TogetherAI, Cerebras, Baseten, Fireworks, and DeepInfra all reuse `OpenAIChat.protocol` verbatim — each provider deployment is a 5-15 line `Route.make(...)` call instead of a 300-400 line route clone. Bug fixes in one protocol propagate to every consumer of that protocol in a single commit.
When a provider ships a non-HTTP transport (OpenAI's WebSocket Responses backend, hypothetical bidirectional streaming APIs), the seam is `Transport``WebSocketTransport.jsonTransport.with(...)` constructs an IO template whose `prepare` receives the route endpoint/auth at compile time, builds a WebSocket URL and message, and whose `frames` yields decoded text from the socket. Same protocol and endpoint source, different transport.
### URL Construction
`Endpoint` owns `{ baseURL, path, query }`. Each protocol route includes a canonical endpoint when the provider has one (e.g. `https://api.openai.com/v1`); provider helpers override endpoint fields by configuring the route before selecting a model. Routes that have no canonical URL (OpenAI-compatible Chat, GitHub Copilot) require configuration before execution.
For providers where the URL is derived from typed inputs (Azure resource name, Bedrock region), the provider helper configures the route endpoint before calling `.model(...)`. Use `AtLeastOne<T>` from `route/auth-options.ts` for inputs that accept either of two derivation paths (Azure: `resourceName` or `baseURL`).
### Provider Facades
Provider-facing APIs are configured facades over route values. Endpoint/auth/resource/API-version setup happens before model selection, and model selectors accept only a model or deployment id:
```ts
const openai = OpenAI.configure({ apiKey, baseURL })
const model = openai.responses("gpt-4o-mini")
const azure = Azure.configure({ resourceName, apiKey, apiVersion: "v1" })
const deployment = azure.responses("my-deployment")
const gateway = CloudflareAIGateway.configure({ accountId, gatewayId, gatewayApiKey, apiKey })
const proxied = gateway.model("openai/gpt-4o-mini")
```
Keep provider facades small and explicit:
- Use branded `ProviderID.make(...)` and `ModelID.make(...)` where ids are constructed directly.
- Use `model` for the default API path and named methods for provider-native alternatives such as OpenAI `responses`, `responsesWebSocket`, and `chat`.
- Put provider-specific setup on `.configure(...)`; do not add `model(id, overrides)` as a duplicate construction path.
- Export lower-level `routes` arrays separately only when advanced internal wiring needs them.
- Prefer `apiKey` as provider-specific sugar and `auth` as the explicit override; keep them mutually exclusive in provider option types with `ProviderAuthOption`.
- Resolve `apiKey``Auth` with `AuthOptions.bearer(options, "<PROVIDER>_API_KEY")` (it honors an explicit `auth` override and falls back to `Auth.config(envVar)` so missing keys surface a typed `Authentication` error rather than a runtime crash).
- Use separate top-level facades for products with different required setup, such as `CloudflareAIGateway` and `CloudflareWorkersAI`.
`Provider.make(...)` remains available for simple static provider definitions, but new built-in providers should prefer plain configured facades unless a helper removes real duplication without adding runtime behavior.
### Provider Package Entrypoints
Catalog-selected native providers use package-like export paths from `@opencode-ai/ai`. They are internal entrypoints in one npm package, not separately published provider packages. Every entrypoint implements `ProviderPackage.Definition` and exposes `model(modelID, settings)`, where settings are serializable provider configuration plus common `headers`, `body`, and `limits` overlays.
```ts
import { model } from "@opencode-ai/ai/providers/openai/responses"
const selected = model("gpt-5", {
apiKey,
transport: "websocket",
})
```
Keep semantic APIs as separate entrypoints, such as OpenAI `chat` and `responses`. Keep transport choices inside the semantic entrypoint settings, so OpenAI Responses HTTP and WebSocket share one entrypoint. Provider facades may still expose named selectors such as `responsesWebSocket` for direct typed call sites; the package-like contract maps its settings to those selectors before returning an executable `LanguageModel`.
Do not expose `Route` in provider package settings. Route composition stays an implementation detail behind `model(...)`.
### Folder layout
```
packages/ai/src/
schema/ canonical Schema model, split by concern
ids.ts branded IDs, literal types, ProviderMetadata
options.ts Generation/Provider/Http options, Limits, LanguageModel, cache policy
messages.ts content parts, Message, ToolDefinition, LLMRequest
events.ts Usage, individual events, LLMEvent, LLMResponse
errors.ts error reasons, AIError, ToolFailure
index.ts barrel
llm.ts request constructors and convenience helpers
route/
index.ts @opencode-ai/ai/route advanced barrel
client.ts Route.make + LLMClient.stream/generate
executor.ts RequestExecutor service + transport error mapping
protocol.ts Protocol type + Protocol.make
endpoint.ts Endpoint type + Endpoint.path
auth.ts Auth type + Auth.bearer / Auth.apiKeyHeader / Auth.passthrough
auth-options.ts ProviderAuthOption shape, AuthOptions.bearer, AtLeastOne helper
framing.ts Framing type + Framing.sse
transport/ transport implementations
index.ts Transport type + HttpTransport / WebSocketTransport namespaces
http.ts HttpTransport.httpJson — POST + framing
websocket.ts WebSocketTransport.json + WebSocketExecutor service
protocols/
shared.ts ProviderShared toolkit used inside protocol impls
openai-chat.ts protocol + route (compose OpenAIChat.protocol)
open-responses.ts provider-neutral Responses protocol baseline
openai-responses.ts OpenAI tools/events/transports composed over OpenResponses
anthropic-messages.ts
gemini.ts
bedrock-converse.ts
bedrock-event-stream.ts framing for AWS event-stream binary frames
openai-compatible-chat.ts route that reuses OpenAIChat.protocol, no canonical URL
openai-compatible-responses.ts deployment adapter that reuses OpenResponses.protocol, no canonical URL
utils/ per-protocol helpers (auth, cache, media, tool-stream, ...)
providers/
openai-compatible.ts generic Chat helper + family model helpers
openai-compatible-responses.ts generic Responses helper
openai-compatible-profile.ts family defaults (deepseek, togetherai, ...)
azure.ts / amazon-bedrock.ts / cloudflare.ts / github-copilot.ts / google.ts / xai.ts / openai.ts / anthropic.ts / openrouter.ts
tool.ts typed tool() helper
tool-runtime.ts narrow one-call typed tool dispatcher
```
The dependency arrow points down: `providers/*.ts` files import protocol routes and auth-option utilities; protocol modules import `endpoint`, `auth`, `framing`, and transport pieces. Protocols do not import provider facades. Lower-level modules know nothing about provider catalog metadata. `OpenAIResponses` composes the provider-neutral `OpenResponses` protocol; the baseline never imports the OpenAI extension.
### Shared protocol helpers
`ProviderShared` exports a small toolkit used inside protocol implementations to keep them focused on provider-native shapes:
- `joinText(parts)` — joins an array of `TextPart` (or anything with a `.text`) with newlines. Use this anywhere a protocol flattens text content into a single string for a provider field.
- `parseToolInput(route, name, raw)` — Schema-decodes a tool-call argument string with the canonical "Invalid JSON input for `<route>` tool call `<name>`" error message. Treats empty input as `{}`.
- `parseJson(route, raw, message)` — generic JSON-via-Schema decode for non-tool bodies.
- `eventError(route, message, ...)` — typed `InvalidProviderOutput` constructor for stream-time decode failures.
- `validateWith(decoder)` — maps Schema decode errors to `InvalidRequest`. `Route.make(...)` uses this for body validation; lower-level routes can reuse it.
- `matchToolChoice(provider, choice, branches)` — branches over `LLMRequest["toolChoice"]` for provider-specific lowering.
If you find yourself copying a 3-to-5-line snippet between two protocols, lift it into `ProviderShared` next to these helpers rather than duplicating.
### Chronological System Updates
`LLMRequest.system` is the initial privileged prompt that applies ahead of the conversation. `Message.system(...)` is a separate, provider-neutral chronological operator update inside `LLMRequest.messages`; it applies only from its position in history onward and accepts text content only.
Native chronological system messages are route/model-specific. Anthropic Messages lowers them natively for Claude Opus 4.8 (`claude-opus-4-8`). Other routes and models intentionally lower the update in place into ordinary user-compatible text using this stable escaped representation:
```text
<system-update>
...
</system-update>
```
The wrapped-user fallback preserves ordering while visibly lowering authority. Never silently pass a raw chronological `role: "system"` through a route that might reject it. Do not insert raw retrieved documents, tool output, or web content into privileged chronological system updates; keep untrusted content in ordinary user/tool channels.
### Tools
Tool loops are represented in common messages and events:
```ts
const call = ToolCallPart.make({ id: "call_1", name: "lookup", input: { query: "weather" } })
const result = Message.tool({ id: "call_1", name: "lookup", result: { forecast: "sunny" } })
const followUp = LLM.request({
model,
messages: [Message.user("Weather?"), Message.assistant([call]), result],
})
```
Routes lower these into provider-native assistant tool-call messages and tool-result messages. Streaming providers should emit `tool-input-delta` events while arguments arrive, then a final `tool-call` event with parsed input.
### Tool dispatch
`LLM.stream(request)` and `LLM.generate(request)` each run exactly one provider turn. Add tool schemas to `request.tools` with `Tool.toDefinitions(tools)`. When a caller wants the package's typed one-call execution behavior, pass each canonical local `tool-call` event to `ToolRuntime.dispatch(tools, call)`.
```ts
const get_weather = tool({
description: "Get current weather for a city",
parameters: Schema.Struct({ city: Schema.String }),
success: Schema.Struct({ temperature: Schema.Number, condition: Schema.String }),
execute: ({ city }) =>
Effect.gen(function* () {
// city: string — typed from parameters Schema
const data = yield* WeatherApi.fetch(city)
return { temperature: data.temp, condition: data.cond }
// return type checked against success Schema
}),
})
const tools = { get_weather, get_time, ... }
const events = yield* LLM.stream(
LLMRequest.update(request, { tools: Tool.toDefinitions(tools) }),
).pipe(Stream.runCollect)
const call = Array.from(events).find(LLMEvent.is.toolCall)
if (call && !call.providerExecuted) {
const dispatched = yield* ToolRuntime.dispatch(tools, call)
// Persist call + dispatched.result, then construct the next request explicitly.
}
```
The dispatcher:
- On `tool-call`: looks up the named tool, decodes input against `parameters` Schema, dispatches to the typed `execute`, encodes the result against `success` Schema, and returns canonical `tool-result` events.
- Does not stream providers, construct Session events, schedule fibers, append history, count steps, or continue model rounds.
- Leaves persistence and continuation to the enclosing product flow.
Handler dependencies (services, permissions, plugin hooks, abort handling) are closed over by the consumer at tool-construction time. Build the tools record inside an `Effect.gen` once and reuse it across many dispatches.
Errors must be expressed as `ToolFailure`. The runtime catches it and emits a `tool-error` event, then a `tool-result` of `type: "error"`, so the model can self-correct on the next step. Anything that is not a `ToolFailure` is treated as a defect and fails the stream. Three recoverable error paths produce `tool-error` events:
- The model called an unknown tool name.
- Input failed the `parameters` Schema.
- The handler returned a `ToolFailure`.
Provider-defined / hosted tools (Anthropic `web_search` / `code_execution` / `web_fetch`, OpenAI Responses `web_search_call` / `file_search_call` / `code_interpreter_call` / `mcp_call` / `local_shell_call` / `image_generation_call` / `computer_use_call`) pass through the runtime untouched:
- Routes surface the model's call as a `tool-call` event with `providerExecuted: true`, and the provider's result as a matching `tool-result` event with `providerExecuted: true`.
- Callers detect `providerExecuted` on `tool-call` and **skip local dispatch** — no handler is invoked and no `tool-error` is raised for "unknown tool". The provider already executed it.
- Callers that continue should retain both events in explicit history when the protocol requires it. Anthropic encodes them back as `server_tool_use` + `web_search_tool_result` (or `code_execution_tool_result` / `web_fetch_tool_result`) blocks; OpenAI Responses callers typically use `previous_response_id` instead of resending hosted-tool items.
Add provider-defined tools to `request.tools` (no runtime entry needed). The matching route must know how to lower the tool definition into the provider-native shape; right now Anthropic accepts `web_search` / `code_execution` / `web_fetch` and OpenAI Responses accepts the hosted tool names listed above.
## Protocol File Style
Protocol files should look self-similar. Provider quirks belong behind named helpers so a new route can be reviewed by comparing the same sections across files.
### Section order
Use this order for every protocol module:
1. Public model input
2. Request body schema
3. Streaming event schema
4. Parser state
5. Request body construction (`fromRequest`)
6. Stream parsing (`step` and per-event handlers)
7. Protocol and route
8. Protocol route export
### Rules
- Keep protocol files focused on the protocol. Move provider-specific projection, signing, media normalization, or other bulky transformations into `src/protocols/utils/*`.
- Use `Effect.fn("Provider.fromRequest")` for request body construction entrypoints. Use `Effect.fn(...)` for event handlers that yield effects; keep purely synchronous handlers as plain functions returning a `StepResult` that the dispatcher lifts via `Effect.succeed(...)`.
- Parser state owns terminal information. The state machine records finish reason, usage, and pending tool calls; emit one terminal `finish` event (or `provider-error`) for each completed response. If a provider splits reason and usage across events, merge them in parser state before flushing.
- Emit exactly one terminal `finish` event for a completed response, normally after a matching `step-finish`. Use `stream.terminal` to stop reading when the provider has a completion sentinel; use `stream.onHalt` when the final event must be flushed after the framed stream ends.
- Use shared helpers for repeated protocol policy such as text joining, usage totals, JSON parsing, and tool-call accumulation. `ToolStream` (`protocols/utils/tool-stream.ts`) accumulates streamed tool-call arguments uniformly.
- Make intentional provider differences explicit in helper names or comments. If two protocol files differ visually, the reason should be obvious from the names.
- Prefer dispatched per-event handlers (`onMessageStart`, `onContentBlockDelta`, ...) called from a small top-level `step` switch over a long if-chain. The dispatcher keeps the event surface visible at a glance.
- Keep tests in the same conceptual order as the protocol: basic prepare, tools prepare, unsupported lowering, text/usage parsing, tool streaming, finish reasons, provider errors.
### Review checklist
- Can the file be skimmed side-by-side with `openai-chat.ts` without hunting for equivalent sections?
- Are provider quirks named, isolated, and covered by focused tests?
- Does request body construction validate unsupported common content at the protocol boundary?
- Does stream parsing emit stable common events without leaking provider event order to callers?
- Does `toolChoice: "none"` behavior read as intentional?
## Recording Tests
Recorded tests use one cassette file per scenario. A cassette holds an ordered array of `{ request, response }` interactions, so multi-step flows (tool loops, retries, polling) record into a single file. Use `recordedTests({ prefix, requires })` and let the helper derive cassette names from test names:
```ts
const recorded = recordedTests({ prefix: "openai-chat", requires: ["OPENAI_API_KEY"] })
recorded.effect("streams text", () =>
Effect.gen(function* () {
// test body
}),
)
```
Replay is the default. `RECORD=true` records fresh cassettes locally and requires the listed env vars; unset `CI` before recording because CI always forces replay. Cassettes are written as pretty-printed JSON so multi-interaction diffs stay reviewable.
Pass `provider`, `protocol`, and optional `tags` to `recordedTests(...)` / `recorded.effect.with(...)` so cassettes carry searchable metadata. Use recorded-test filters to replay or record a narrow subset without rewriting a whole file:
- `RECORDED_PROVIDER=openai` matches tests tagged with `provider:openai`; comma-separated values are allowed.
- `RECORDED_PREFIX=openai-chat` matches cassette groups by `recordedTests({ prefix })`; comma-separated values are allowed.
- `RECORDED_TAGS=tool` requires all listed tags to be present, e.g. `RECORDED_TAGS=provider:togetherai,tool`.
- `RECORDED_TEST="streams text"` matches by test name, kebab-case test id, or cassette path.
Filters apply in replay and record mode. Combine them with `RECORD=true` when refreshing only one provider or scenario.
**Binary response bodies.** Most providers stream text (SSE, JSON). The recorder treats known textual media types (`text/*`, JSON/XML structured types, JavaScript, forms, YAML, and SVG) as text and stores every other response as base64 with `bodyEncoding: "base64"`. This preserves binary formats such as AWS event-stream frames without a lossy UTF-8 round trip.
**Matching strategy.** A runtime request atomically claims the first unused recorded interaction that matches its method, URL, allow-listed headers, and canonical JSON body. Distinct requests may replay in any order or concurrently. Repeated identical requests consume their matching responses in cassette order, preserving deterministic retry and polling behavior. `scriptedResponses` (in `test/lib/http.ts`) is the deterministic counterpart for tests that don't need a live provider; it scripts response bodies in order without reading from disk.
Do not blanket re-record an entire test file when adding one cassette. `RECORD=true` rewrites every recorded case that runs, and provider streams contain volatile IDs, timestamps, fingerprints, and obfuscation fields. Prefer deleting the one cassette you intend to refresh, or run a focused test pattern that only registers the scenario you want to record. Keep stable existing cassettes unchanged unless their request shape or expected behavior changed.
@@ -1,7 +1,7 @@
# AI Library Design
> Discussion draft. This document describes the intended replacement for the
> current private `@opencode-ai/llm` API. Names and exact TypeScript signatures
> Discussion draft. This document describes an intended clean-break redesign of
> the current private `@opencode-ai/ai` API. Names and exact TypeScript signatures
> are illustrative until implementation, but the domain boundaries and defaults
> are deliberate.
@@ -96,7 +96,7 @@ contains identity, capabilities, pricing metadata, provider-specific option
types, reusable request-behavior defaults, and hidden execution behavior.
Normal users do not need to learn the current `Route` composite. Protocol,
endpoint, auth, transport, and hooks are bound behind `Model`.
endpoint, auth, transport, and hooks are bound behind `LanguageModel`.
### Request
@@ -315,7 +315,8 @@ const longer = {
}
```
There is no `LLM.updateRequest(...)` helper and no request Schema class.
There is no `LLM.updateRequest(...)` helper. The current Schema-backed implementation
uses `LLMRequest.update(...)` when canonical request data must be derived.
### Conversation history
@@ -436,7 +437,7 @@ const call = Array.from(events).find(LLMEvent.is.toolCall)
if (call && !call.providerExecuted) {
const dispatched = yield * ToolRuntime.dispatch(tools, call)
const followUp = LLM.updateRequest(request, {
const followUp = LLMRequest.update(request, {
messages: [...request.messages, Message.assistant([call]), Message.tool({ ...call, result: dispatched.result })],
})
// Caller must invoke the provider again and repeat the loop.
@@ -538,7 +539,7 @@ Hosted tools do not pretend to have local handlers, and callers do not inspect a
### Run stream
`LLM.stream` returns an Effect `Stream<RunEvent, LLMError, Requirements>`.
`LLM.stream` returns an Effect `Stream<RunEvent, AIError, Requirements>`.
Run events explicitly expose orchestration boundaries:
```ts
@@ -827,11 +828,11 @@ portable semantic guarantee.
## Error Model
The Effect error channel is a tagged domain union rather than one `LLMError`
The Effect error channel is a tagged domain union rather than one `AIError`
wrapper with nested reasons. Illustrative categories:
```ts
type LLMError =
type AIError =
| AuthenticationError
| InvalidRequestError
| UnsupportedCapabilityError
@@ -1074,12 +1075,11 @@ The redesign intentionally removes or changes these current concepts:
| Current | Proposed |
| --------------------------------------- | ----------------------------------------------------------- |
| `@opencode-ai/llm` | `@opencode-ai/ai` |
| Mandatory `LLM.request({ model, ... })` | Inline calls or model-free portable requests |
| `LLM.generate` means one turn | `LLM.generate` means complete run |
| `LLMClient.generate/stream` | `LLM.generateTurn/streamTurn` for one turn |
| `LLMClient.layer` requirement | Standard Effect requirements exposed directly |
| Public `Route` mental model | Hidden behind executable `Model` |
| Public `Route` mental model | Hidden behind executable `LanguageModel` |
| `Provider.make` structural helper | Experimental declarative `Provider.define` |
| Schema classes as canonical values | Plain immutable values plus schema subpath |
| `LLM.updateRequest` | Object spread |
@@ -1089,7 +1089,7 @@ The redesign intentionally removes or changes these current concepts:
| `generateObject` | Typed `output` option on `generate` |
| One event union for provider output | Separate `TurnEvent` and `RunEvent` unions |
| `providerExecuted` dispatch check | Distinct hosted-tool constructors |
| One wrapped `LLMError` | Tagged domain error union |
| One wrapped `AIError` | Tagged domain error union |
OpenCode should migrate to `generateTurn` / `streamTurn`, preserving its durable
prompt admission, persistence, permission, tool settlement, and continuation
+392
View File
@@ -0,0 +1,392 @@
# @opencode-ai/ai
Schema-first AI primitives for opencode. Provider quirks live in adapters, not in calling code.
```ts
import { Effect, Layer } from "effect"
import { LLM, LLMClient } from "@opencode-ai/ai"
import { RequestExecutor } from "@opencode-ai/ai/route"
import { OpenAI } from "@opencode-ai/ai/providers"
const model = OpenAI.configure({ apiKey: process.env.OPENAI_API_KEY }).responses("gpt-4o-mini")
const request = LLM.request({
model,
system: "You are concise.",
prompt: "Say hello in one short sentence.",
generation: { maxTokens: 40 },
})
const program = Effect.gen(function* () {
const response = yield* LLMClient.generate(request)
console.log(response.text)
})
const llmLayer = LLMClient.layer.pipe(Layer.provide(RequestExecutor.fetchLayer))
await Effect.runPromise(program.pipe(Effect.provide(llmLayer)))
```
Run `LLMClient.stream(request)` instead of `generate` when you want incremental `LLMEvent`s. The event stream is provider-neutral — same shape across OpenAI Chat, OpenAI Responses, Anthropic Messages, Gemini, Bedrock Converse, and any OpenAI-compatible deployment.
## Image generation
Use `Image.generate` with an image model for direct asset generation:
```ts
import { Image, ImageInput } from "@opencode-ai/ai"
import { OpenAI } from "@opencode-ai/ai/providers"
const program = Effect.gen(function* () {
const response = yield* Image.generate({
model: OpenAI.configure({ apiKey: process.env.OPENAI_API_KEY }).image("gpt-image-2"),
prompt: "A robot tending a rooftop garden",
options: {
n: 2,
size: "1024x1024",
quality: "high", // inferred from the OpenAI image model
outputFormat: "webp",
future_option: true, // unknown native options pass through unchanged
},
})
return response.images // GeneratedImage[] with owned bytes or a provider URL
})
```
Pass ordered image inputs to the same method for editing, composition, or image-conditioned generation:
```ts
const response =
yield *
Image.generate({
model,
prompt: "Combine these product photos into one studio scene",
images: [
ImageInput.bytes(firstBytes, "image/png"),
ImageInput.url("https://example.com/second.webp"),
ImageInput.file("file_123"),
],
options,
http,
})
```
`ImageInput.fileUri(uri, mediaType)` represents provider file URIs such as Gemini Files. Raw strings are not
accepted as image inputs, avoiding ambiguity between base64, URLs, and provider IDs. Empty or omitted `images`
uses text-to-image generation; a non-empty array selects the provider's edit behavior without enforcing provider
image-count limits locally. `images` is the only common image-editing field. OpenAI uses multipart for byte/data-URL
edits and its JSON reference body for URL or file-ID edits. Its provider-specific `options.mask` accepts an
`ImageInput` for inpainting:
```ts
yield *
Image.generate({
model: OpenAI.configure({ apiKey }).image("gpt-image-2"),
prompt,
images: [ImageInput.bytes(sourceBytes, "image/png")],
options: { mask: ImageInput.bytes(maskBytes, "image/png") },
})
```
The OpenAI adapter extracts this helper value into the edit request's native `mask` field rather than passing the
tagged `ImageInput` object through as an ordinary option. On multipart requests, `http.body` can override option
fields but not structural `model`, `prompt`, `image[]`, or `mask` fields, and the transport owns the multipart
`Content-Type` boundary. For JSON requests, `http.body` remains the final raw-native overlay. Gemini does not fetch
public HTTP URLs, and hosted Z.ai image generation does not accept image inputs. These cases fail with
`InvalidRequest` before network I/O.
Provider-native image options belong to each request. Raw `http.body` fields have final precedence over them:
```ts
const model = OpenAI.configure({ apiKey }).image("gpt-image-2")
yield *
Image.generate({
model,
prompt,
options: { quality: "medium" },
http,
})
```
xAI image models use the same request API with xAI-native controls:
```ts
yield *
Image.generate({
model: XAI.configure({ apiKey }).image("any-model-id"),
prompt,
options: {
n: 2,
aspectRatio: "16:9",
resolution: "1k",
responseFormat: "b64_json",
future_option: true,
},
http,
})
```
Google's current Gemini image models use the same direct API:
```ts
import { Google } from "@opencode-ai/ai/providers"
const googleProgram = Effect.gen(function* () {
const response = yield* Image.generate({
model: Google.configure({ apiKey }).image("any-model-id"),
prompt: "A robot tending a rooftop garden",
options: {
aspectRatio: "16:9",
imageSize: "2K",
seed: 42,
thinkingLevel: "HIGH",
includeThoughts: true,
futureOption: true,
},
http,
})
return response.images
})
```
Google image options are request-scoped and inferred from the selected model. Known fields autocomplete while
future string values and arbitrary native Gemini `generationConfig` fields remain available. Native fields override
their mapped aliases, and `http.body` is the final deep overlay. The selected model ID is sent to Gemini
`generateContent` without a local allowlist.
Z.ai image models infer open Z.ai-native options from the selected model:
```ts
yield *
Image.generate({
model: ZAI.configure({ apiKey }).image("any-model-id"),
prompt,
options: {
quality: "hd",
userID: "user-123",
future_option: true,
},
http,
})
```
Z.ai does not include trustworthy MIME metadata for output URLs, so generated images use
`application/octet-stream`. Output URLs expire after 30 days; download and persist them promptly if they must
remain available.
Conversational image generation remains part of the LLM interaction. OpenAI Responses exposes it through its hosted image tool:
```ts
const program = Effect.gen(function* () {
const response = yield* LLM.generate(
LLM.request({
model: OpenAI.configure({ apiKey }).responses("gpt-5"),
prompt: "Design a solarpunk rooftop garden, then show me.",
tools: [OpenAI.imageGeneration({ quality: "high" })],
}),
)
return response.message
})
```
The hosted result is represented as a provider-executed tool call and tool result. Its image is a `file` content item with a data URI, so retaining `response.message` preserves the generated image for continuation.
## Public API
- **`LLM.request({...})`** — build a provider-neutral `LLMRequest`. Accepts ergonomic inputs (`system: string`, `prompt: string`) that normalize into the canonical Schema classes.
- **`LLM.generate` / `LLM.stream`** — re-exported from `LLMClient` for one-import use.
- **`Message.user(...)` / `Message.assistant(...)` / `Message.tool(...)`** — message constructors from the canonical schema model.
- **`LanguageModel.make(...)` / `ToolCallPart.make(...)` / `ToolResultPart.make(...)` / `ToolDefinition.make(...)`** — model and tool-related constructors from the canonical schema model.
- **`LLMEvent.is.*`** — typed guards (`is.textDelta`, `is.toolCall`, `is.finish`, …) for filtering streams.
- **`Image.generate({...})`** — generate images through a provider-neutral image request and response model.
- **`ImageClient`** — Effect service and layer for image execution, parallel to `LLMClient`.
## Testing
Use the deterministic test client from `@opencode-ai/ai/testing` to script provider-neutral responses and inspect
the requests sent by code under test:
```ts
import { Effect } from "effect"
import { TestLLM } from "@opencode-ai/ai/testing"
const testLLM = TestLLM.layer({
fallback: TestLLM.text("Hello from the test model", "text-1"),
})
// TestLLM.clientLayer provides LLMClient.Service and consumes TestLLM.Service.
const programWithTestClient = Effect.gen(function* () {
const result = yield* program
const test = yield* TestLLM.Service
console.log(test.requests)
return result
}).pipe(Effect.provide(TestLLM.clientLayer), Effect.provide(testLLM))
```
`TestLLM.push(...)` scripts one-shot responses, `TestLLM.always(...)` changes the fallback, and
`TestLLM.wait(...)` lets concurrent tests wait until a request has arrived. Every received canonical request is
available on the yielded `TestLLM.Service`.
## Caching
Prompt caching is **on by default**. Every `LLMRequest` resolves to `cache: "auto"` unless the caller opts out with `cache: "none"`. Each protocol translates `CacheHint`s to its wire format (`cache_control` on Anthropic, `cachePoint` on Bedrock; OpenAI and Gemini do implicit caching server-side and don't need inline markers — auto is a no-op there).
### Auto placement
`"auto"` places up to four breakpoints — the last tool definition, the first system part, the last system part when distinct, and the final message boundary. These expose successively larger reusable prefixes for tools, the base agent, project instructions, and the active conversation. The rolling final-message boundary is the load-bearing detail in tool loops: it advances on every request so the previous cache entry stays within Anthropic's 20-block lookback.
Tools precede every system and conversation block in the provider prefix, so tool definitions must remain byte-stable and deterministically ordered for downstream breakpoints to remain reusable.
The math justifies the default: Anthropic's 5-minute cache write is 1.25× base, read is 0.1×, so a single reuse within 5 minutes already wins. One-shot completions below the per-model minimum-cacheable-token threshold silently no-op on the wire, so the worst case is harmless.
### Opting out
```ts
LLM.request({
model,
system,
prompt: "one-off question",
cache: "none",
})
```
### Granular policy
```ts
cache: {
tools?: boolean,
system?: boolean,
messages?: "latest-user-message" | "latest-assistant" | { tail: number },
ttlSeconds?: number, // ≥ 3600 → 1h on Anthropic/Bedrock; else 5m
}
```
### Manual hints
Inline `CacheHint` on any text / system / tool / tool-result part overrides automatic placement. The auto policy preserves manual hints, counts them against Anthropic and Bedrock's four-breakpoint limit, and only fills the remaining slots.
```ts
LLM.request({
model,
system: [
{ type: "text", text: "stable system prompt", cache: { type: "ephemeral" } },
],
...
})
```
### Provider behavior table
| Protocol | `cache: "auto"` |
| ----------------------- | ------------------------------------------------------------------------- |
| Anthropic Messages | emits up to 4 `cache_control` markers (4-breakpoint cap enforced) |
| Bedrock Converse | emits up to 4 `cachePoint` blocks (4-breakpoint cap enforced) |
| OpenAI Chat / Responses | no-op (implicit caching above 1024 tokens) |
| Gemini | no-op (implicit caching on 2.5+; explicit `CachedContent` is out-of-band) |
Normalized cache usage is read back into `response.usage.cacheReadInputTokens` and `cacheWriteInputTokens` across every provider.
## Providers
Provider facades configure endpoint/auth/deployment details first, then expose model selectors that take only a model or deployment id. The selected model carries the executable route value used at runtime.
```ts
import { OpenAI, CloudflareAIGateway } from "@opencode-ai/ai/providers"
const openai = OpenAI.configure({ apiKey: process.env.OPENAI_API_KEY }).responses("gpt-4o-mini")
const gateway = CloudflareAIGateway.configure({
accountId: process.env.CLOUDFLARE_ACCOUNT_ID,
gatewayApiKey: process.env.CLOUDFLARE_API_TOKEN,
}).model("workers-ai/@cf/meta/llama-3.1-8b-instruct")
```
Included providers: OpenAI, Anthropic, Google (Gemini), Google Vertex Gemini and Anthropic, Amazon Bedrock, Azure OpenAI, Cloudflare AI Gateway, Cloudflare Workers AI, GitHub Copilot, OpenRouter, xAI, Z.ai, plus generic OpenAI-compatible Chat and Responses entrypoints and an Anthropic Messages-compatible entrypoint.
### Package-like entrypoints
Native catalog integrations load provider behavior through package-like entrypoints. These are export paths from the same `@opencode-ai/ai` npm package, not independently published packages. Each entrypoint exports the same `model(modelID, settings)` contract, and `settings` contains serializable provider configuration plus common `headers`, `body`, and `limits` overlays.
```ts
import { model } from "@opencode-ai/ai/providers/openai/responses"
const selected = model("gpt-5", {
apiKey: process.env.OPENAI_API_KEY,
transport: "websocket",
headers: { "x-application": "opencode" },
limits: { context: 200_000, output: 64_000 },
})
```
OpenAI Chat and OpenAI Responses are separate semantic entrypoints:
- `@opencode-ai/ai/providers/openai/chat`
- `@opencode-ai/ai/providers/openai/responses`
- `@opencode-ai/ai/providers/openai-compatible/responses`
- `@opencode-ai/ai/providers/anthropic-compatible`
- `@opencode-ai/ai/providers/google-vertex/gemini`
- `@opencode-ai/ai/providers/google-vertex/chat`
- `@opencode-ai/ai/providers/google-vertex/responses`
- `@opencode-ai/ai/providers/google-vertex/messages`
Responses HTTP versus WebSocket is a scoped `transport` setting on the OpenAI Responses entrypoint, not another entrypoint. Azure follows the same Chat/Responses split at `providers/azure/chat` and `providers/azure/responses`. Generic OpenAI-compatible Chat remains at `providers/openai-compatible`; the Responses adapter at `providers/openai-compatible/responses` uses the provider-neutral Open Responses protocol. OpenAI Responses extends that baseline with OpenAI tools, event variants, metadata, defaults, and transports. Generic Anthropic Messages-compatible providers use `providers/anthropic-compatible`, which the named Anthropic provider composes. Google Gemini and Amazon Bedrock expose their single native API through their existing provider paths.
Vertex Gemini, Vertex Chat, Vertex Responses, and Vertex Messages are separate API entrypoints. All accept `project`, `location`, and an optional `accessToken`; when no explicit token or auth override is supplied they lazily use Google Application Default Credentials. Vertex Gemini instead selects express mode when `apiKey` or `GOOGLE_VERTEX_API_KEY` is present. Vertex Chat targets MaaS models through the OpenAI-compatible Chat Completions endpoint, while Vertex Responses targets Grok models and defaults `store` to `false` as required by Vertex. `providers/google-vertex` remains the default alias for `providers/google-vertex/gemini`.
Tuned Vertex Gemini deployments use model ids shaped like `endpoints/1234567890` and require OAuth or ADC; Vertex express-mode API keys support publisher models only.
```ts
import { model } from "@opencode-ai/ai/providers/google-vertex/gemini"
model("gemini-3.5-flash", { project: "my-project", location: "global" })
```
```ts
import { model } from "@opencode-ai/ai/providers/google-vertex/chat"
model("deepseek-ai/deepseek-v3.2-maas", { project: "my-project", location: "global" })
```
```ts
import { model } from "@opencode-ai/ai/providers/google-vertex/responses"
model("xai/grok-4.20-reasoning", { project: "my-project", location: "global" })
```
```ts
import { model } from "@opencode-ai/ai/providers/google-vertex/messages"
model("claude-sonnet-4-6", { project: "my-project", location: "global" })
```
Provider facades such as `OpenAI.configure(...).responses(...)` remain the direct application API. Package-like entrypoints are the self-similar loading contract used when a catalog selects behavior by export path.
Other provider exports listed above remain direct facades until they explicitly implement the package-like contract. Exporting a provider facade does not implicitly make it a catalog-loadable provider package.
## Provider options & HTTP overlays
Three escape hatches in order of stability:
1. **`generation`** — portable knobs (`maxTokens`, `temperature`, `topP`, `topK`, penalties, seed, stop).
2. **`providerOptions: { <provider>: {...} }`** — typed-at-the-facade provider-specific knobs (OpenAI `promptCacheKey`, Anthropic `thinking`, Gemini `thinkingConfig`, OpenRouter routing).
3. **`http: { body, headers, query }`** — last-resort serializable overlays merged into the final HTTP request. Reach for this only when a stable typed path doesn't yet exist.
Route/provider defaults are overridden by request-level values for each axis.
## Routes
Adding a new model or deployment is usually 5-15 lines using `Route.make({ protocol, endpoint, auth, framing, ... })`. The route owns endpoint/auth/framing and the protocol owns body construction plus stream parsing. Transports are reusable IO templates that receive route endpoint/auth at compile time. Capability/catalog metadata lives outside this low-level package; unsupported request shapes fail during protocol lowering. See `AGENTS.md` for the architectural detail.
## Effect
This package is built on Effect. Public methods return `Effect` or `Stream`; provide `LLMClient.layer` for LLM dispatch and `ImageClient.layer` for image dispatch, then import the provider/protocol modules for the routes you use. The example at `example/tutorial.ts` is a runnable walkthrough.
## See also
- `AGENTS.md` — architecture, route construction, contributor guide
- `STATUS.md` — native provider parity status and AI SDK migration gaps
- `example/tutorial.ts` — runnable end-to-end walkthrough
- `test/provider/*.test.ts` — fixture-first protocol tests; `*.recorded.test.ts` files cover live cassettes
+108
View File
@@ -0,0 +1,108 @@
# LLM Provider Parity Status
Last reviewed: 2026-07-24
This file tracks the gap between the native `@opencode-ai/ai` package and the AI SDK provider packages that opencode still depends on for many catalog/runtime paths.
## Existing Status Sources
| File | What it tracks | Limitation |
| ----------------------------------- | ----------------------------------------------------------------------- | ------------------------------------------------------- |
| `packages/ai/DESIGN.md` | Future clean-break API proposal for `@opencode-ai/ai`. | Not a provider parity tracker. |
| `packages/ai/example/call-sites.md` | Route/value/provider-facade migration checklist and call-site sketches. | Architecture migration only; not AI SDK package parity. |
## Current Implementation Snapshot
| Native slice | Source | Current state | Main gaps |
| ---------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| OpenAI Chat | `src/protocols/openai-chat.ts`, `src/providers/openai.ts` | Usable. Streams text, reasoning deltas, tool calls, usage, images, and common generation controls. | No typed structured-output / `response_format` path. Limited typed OpenAI option surface compared with SDK escape hatches. |
| OpenAI Responses HTTP | `src/protocols/open-responses.ts`, `src/protocols/openai-responses.ts`, `src/providers/openai.ts` | Usable. Extends the Open Responses baseline with hosted-tool event surfacing, reasoning replay metadata, GPT-5 defaults, and cache usage. | No explicit `previous_response_id` path. Typed options cover only a subset of Responses fields. Structured output is still mostly synthetic-tool based. |
| OpenAI Responses WebSocket | `src/protocols/openai-responses.ts`, `src/route/transport/websocket.ts` | Present as `OpenAI.responsesWebSocket(...)`. | Runner/catalog support explicitly must not downgrade WebSocket routes; broader runtime selection is not complete. |
| OpenAI-compatible Chat | `src/protocols/openai-compatible-chat.ts`, `src/providers/openai-compatible.ts` | Usable for generic Chat and several profiles: Baseten, Cerebras, DeepInfra, DeepSeek, Fireworks, Groq, TogetherAI. | Family quirks are mostly endpoint defaults, not full typed behavior. |
| Open Responses-compatible | `src/protocols/open-responses.ts`, `src/protocols/openai-compatible-responses.ts`, `src/providers/openai-compatible-responses.ts` | Usable for deployments that implement the provider-neutral Open Responses protocol. The deployment adapter does not inherit OpenAI tools, events, metadata, or defaults. | No named family profiles or recorded deployment coverage yet. |
| Anthropic-compatible Messages | `src/protocols/anthropic-messages.ts`, `src/providers/anthropic-compatible.ts` | Usable for deployments that implement the Anthropic Messages wire protocol. Named Anthropic composes this base; MiniMax M3 has recorded text and tool-loop coverage. | No named compatible family profiles yet. |
| Anthropic Messages | `src/protocols/anthropic-messages.ts`, `src/providers/anthropic.ts` | Usable. Supports tools, thinking, cache control, images, server-hosted tool events, and usage. | Provider option surface is small. Beta/header handling, metadata, and newer Messages fields need a typed parity pass. |
| Gemini Developer API | `src/protocols/gemini.ts`, `src/providers/google.ts` | Usable for Google API key flow. Supports text, images, tools, thinking signatures, and cache usage. | This is not Vertex. Typed provider options are narrow; many Gemini request fields currently require raw `http.body` overlays. |
| Vertex Gemini | `src/protocols/gemini.ts`, `src/providers/google-vertex.ts` | Usable through API-key express mode, explicit OAuth tokens, or ADC with project/location endpoint derivation, including tuned `endpoints/...` deployments. | Core runner/catalog mapping and recorded provider coverage are missing. |
| Vertex Chat | `src/protocols/openai-chat.ts`, `src/providers/google-vertex-chat.ts` | Usable for MaaS models through OpenAI-compatible Chat Completions with explicit OAuth tokens or ADC and project/location endpoint derivation. | Core runner/catalog mapping and recorded provider coverage are missing; MaaS family-specific request parity needs review. |
| Vertex Responses | `src/protocols/open-responses.ts`, `src/providers/google-vertex-responses.ts` | Usable for Grok models through Open Responses with explicit OAuth tokens or ADC, project/location endpoint derivation, and an explicit `store: false` Vertex default. | Core runner/catalog mapping and recorded provider coverage are missing; stateful continuation is not supported by Vertex. |
| Vertex Messages | `src/protocols/anthropic-messages.ts`, `src/providers/google-vertex-messages.ts` | Usable through explicit OAuth tokens or ADC, including global, regional, and `eu`/`us` multi-region endpoints. | Core runner/catalog mapping and recorded provider coverage are missing; Vertex-specific hosted-tool parity needs review. |
| Bedrock Converse | `src/protocols/bedrock-converse.ts`, `src/providers/amazon-bedrock.ts` | Partial but real. Supports AWS event-stream framing, SigV4 with supplied credentials, bearer auth, tools, reasoning signatures, media, cache points, and recorded tests. | Native facade does not mirror the AI SDK plugin's default AWS credential chain/profile behavior. Runner/catalog mapping is missing. Guardrails, inference profiles, region-specific model ID fixes, and model-specific request fields need a parity pass. |
| Azure OpenAI | `src/providers/azure.ts` using OpenAI Chat/Responses protocols | Partial. Supports resource/base URL setup, API key auth, API version query, Chat, and Responses selectors. | Core runner does not map `@ai-sdk/azure` to this native facade. AAD/token auth and Azure-specific endpoint variants need review. |
| Cloudflare AI Gateway / Workers AI | `src/providers/cloudflare.ts` | Present via OpenAI-compatible Chat routes. | Useful but not part of the critical AI SDK replacement set yet. Needs per-product recorded coverage before relying on it broadly. |
| OpenRouter | `src/providers/openrouter.ts` | Present with OpenRouter-specific usage/reasoning/prompt-cache options over Chat. | Responses-style OpenRouter support is absent. |
| xAI | `src/providers/xai.ts` | Present with Responses and Chat selectors. | Needs package-parity review against the AI SDK xAI provider. |
| GitHub Copilot | `src/providers/github-copilot.ts` | Present as explicit-base-URL OpenAI Chat/Responses facade. | Runtime/catalog integration remains specialized and should stay separate from public OpenAI-compatible defaults. |
## V2 Runner Status
`packages/core/src/session/runner/model.ts` currently resolves only this native subset from catalog `aisdk` metadata:
| Catalog API | Native route used today |
| --------------------------------------------------- | ---------------------------- |
| `aisdk:@ai-sdk/openai` | `OpenAIResponses.route` |
| `aisdk:@ai-sdk/anthropic` | `AnthropicMessages.route` |
| `aisdk:@ai-sdk/openai-compatible` with explicit URL | `OpenAICompatibleChat.route` |
Other `aisdk:` packages, including Google Vertex, Azure, and Bedrock, currently fall back through the AI SDK loader in the production runner. The dependency-free resolver seam rejects them with `SessionRunnerModel.UnsupportedPackageError`; they are not native route mappings yet.
## AI SDK Package Parity Matrix
| AI SDK package | Intended native target | Status | Biggest gaps |
| --------------------------------- | -------------------------------------------------------------- | ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `@ai-sdk/openai` | `OpenAI.chat`, `OpenAI.responses`, `OpenAI.responsesWebSocket` | Partial / usable | Add complete typed option coverage, structured output strategy, explicit Responses continuation support, and runner route selection between Chat/Responses/WebSocket. |
| `@ai-sdk/openai-compatible` | Generic OpenAI-compatible Chat and Responses | Partial / usable | Decide per-family namespace/profile behavior and runner API selection for providers that support Responses versus Chat only. |
| `@ai-sdk/anthropic` | `AnthropicMessages` | Partial / usable | Finish Messages API parity for headers/betas/metadata/newer fields and document hosted-tool continuation expectations. |
| `@ai-sdk/google` | Gemini Developer API | Partial / usable | Add typed options for safety, response schema/modalities, cached content, grounding/search/code execution, and non-text output modes where supported. |
| `@ai-sdk/google-vertex` | Vertex Gemini namespace/facade | Partial / usable | Add runner/catalog mapping, recorded coverage, and broader provider-option parity. |
| `@ai-sdk/google-vertex/anthropic` | Anthropic Messages over Vertex namespace/facade | Partial / usable | Add runner/catalog mapping, recorded coverage, and Vertex-specific hosted-tool parity. |
| `@ai-sdk/google-vertex/maas` | Vertex Chat | Partial / usable | Add runner/catalog mapping, recorded coverage, and MaaS family-specific request parity. |
| `@ai-sdk/google-vertex/xai` | Vertex Chat / Responses | Partial / usable | Decide Chat/Responses selection for catalog models, add runner mapping and recorded coverage, and review xAI-specific request options. |
| `@ai-sdk/azure` | Azure OpenAI Chat/Responses facade | Partial | Map runner/catalog metadata to native Azure, handle resourceName/baseURL/apiVersion variants, add AAD/token auth story, and verify Chat vs Responses deployment selection. |
| `@ai-sdk/amazon-bedrock` | Bedrock Converse | Partial | Add default AWS credential chain/profile support, region/inference-profile model ID handling, provider option parity via `additionalModelRequestFields`, guardrails/performance config, and runner/catalog mapping. |
| `@ai-sdk/amazon-bedrock/mantle` | Bedrock Mantle OpenAI-compatible Chat/Responses namespace | Partial / usable | Add default AWS credential chain/profile support; native catalog mapping currently requires bearer auth or explicit static credentials. |
## Highest-Risk Gaps
1. Runner support is narrower than the LLM package. The package has native provider facades for Google, Azure, and Bedrock, but the V2 Session runner only maps OpenAI, Anthropic, and explicit OpenAI-compatible Chat from `aisdk` catalog metadata.
2. The Open Responses adapter is available through a separate package entrypoint, but the V2 runner still maps `@ai-sdk/openai-compatible` to Chat only. Catalog selection must become API-aware before Responses deployments can use it.
3. Bedrock native auth is not AI SDK parity. The AI SDK plugin uses the default AWS provider chain, profile, container credentials, and Bedrock bearer token env behavior. Native Bedrock currently expects explicit credentials or bearer auth on the facade.
4. Vertex Gemini, Vertex Chat, Vertex Responses, and Vertex Messages now have native package entrypoints, but the core runner does not map catalog metadata to them yet and recorded provider coverage is still missing.
5. Azure is only a provider facade, not a full runtime replacement. Native Azure exists, but the catalog runner does not select it, and token auth/resource variants need review.
6. Provider option typing is uneven. OpenAI, Anthropic, Gemini, Bedrock, and OpenRouter each expose a small typed subset plus raw HTTP overlays; this is useful but not equivalent to AI SDK provider option coverage.
7. Structured output is not provider-native yet. `LLM.generateObject` still uses a synthetic tool strategy, while the future design expects native structured output where reliable and tool fallback where needed.
8. Package/namespace boundaries for the current native loading set are explicit in docs and exports. Other exported provider facades are not catalog package entrypoints until they implement the contract. Vertex xAI still needs catalog API selection.
9. Recorded coverage is uneven. OpenAI, Anthropic, Gemini, Bedrock Converse, Bedrock Mantle, Cloudflare, OpenRouter, and several OpenAI-compatible Chat providers have cassettes. Azure and Vertex still need first-class recorded scenarios before switching defaults.
## Native Namespace Shape
These are implementation/API slices, not separate npm packages.
| API slice | Package-like entrypoint | Purpose |
| ----------------------------- | ----------------------------------------------------------- | ---------------------------------------------------------------------------- |
| OpenAI Chat | `@opencode-ai/ai/providers/openai/chat` | OpenAI `/chat/completions` semantics. |
| OpenAI Responses | `@opencode-ai/ai/providers/openai/responses` | OpenAI `/responses` semantics with HTTP/WebSocket selected through settings. |
| OpenAI-compatible Chat | `@opencode-ai/ai/providers/openai-compatible` | Generic OpenAI-compatible `/chat/completions`. |
| Open Responses-compatible | `@opencode-ai/ai/providers/openai-compatible/responses` | Generic provider-neutral `/responses`. |
| Anthropic-compatible Messages | `@opencode-ai/ai/providers/anthropic-compatible` | Generic Anthropic-compatible `/messages`. |
| Anthropic Messages | `@opencode-ai/ai/providers/anthropic` | Anthropic Messages API. |
| Gemini Developer API | `@opencode-ai/ai/providers/google` | Google AI Studio Gemini API. |
| Vertex Gemini | `@opencode-ai/ai/providers/google-vertex/gemini` | Vertex Gemini API; `providers/google-vertex` is the default alias. |
| Vertex Chat | `@opencode-ai/ai/providers/google-vertex/chat` | Vertex OpenAI-compatible Chat Completions for MaaS models. |
| Vertex Responses | `@opencode-ai/ai/providers/google-vertex/responses` | Vertex Open Responses for Grok models. |
| Vertex Messages | `@opencode-ai/ai/providers/google-vertex/messages` | Vertex-hosted Anthropic Messages API. |
| Bedrock Converse | `@opencode-ai/ai/providers/amazon-bedrock` | AWS Bedrock Converse API. |
| Bedrock Mantle Chat | `@opencode-ai/ai/providers/amazon-bedrock/mantle/chat` | AWS Bedrock Mantle OpenAI-compatible Chat API. |
| Bedrock Mantle Responses | `@opencode-ai/ai/providers/amazon-bedrock/mantle/responses` | AWS Bedrock Mantle OpenAI-compatible Responses API. |
| Azure OpenAI Chat | `@opencode-ai/ai/providers/azure/chat` | Azure specialization of OpenAI Chat. |
| Azure OpenAI Responses | `@opencode-ai/ai/providers/azure/responses` | Azure specialization of OpenAI Responses. |
## Suggested Next Work Slices
1. Add native runner/catalog mappings for `@ai-sdk/azure`, `@ai-sdk/google`, and `@ai-sdk/amazon-bedrock` where the existing native facades are already close.
2. Add API-aware runner/catalog selection between OpenAI-compatible Chat and Responses.
3. Bring Bedrock native auth/config to AI SDK parity: region, profile, default AWS credential chain, bearer token env, endpoint override, and cross-region inference profile handling.
4. Add runner/catalog mappings and recorded scenarios for the native Vertex Gemini, Chat, Responses, and Messages entrypoints.
5. Decide Chat/Responses selection for `@ai-sdk/google-vertex/xai` catalog models.
6. Expand typed provider options from the existing V1 lowerer knowledge in `packages/core/src/v1/config/provider-options.ts` before adding more raw overlay examples.
7. Add recorded provider tests for Azure, Vertex Gemini, Vertex Chat, Vertex Responses, Vertex Messages, and Bedrock credential-chain behavior before making native runtime the default for those packages.
@@ -7,7 +7,7 @@ values directly.
## Conversation Summary
Kit and Aidan want provider-specific LLM behavior to move out of opencode's AI
SDK transform path and into `packages/llm` where possible. The goal is not a big
SDK transform path and into `packages/ai` where possible. The goal is not a big
generic transform layer; the goal is small composable route definitions backed by
recorded golden tests.
@@ -33,7 +33,7 @@ Keep durable identity separate from runtime capability:
- Durable identity is small serializable data like `{ providerID, modelID }` for
config, sessions, logs, and catalogs.
- Runtime capability is a `Model` with a route value, protocol, transport, auth,
- Runtime capability is a `LanguageModel` with a route value, protocol, transport, auth,
and defaults. It is allowed to contain functions and schemas.
- If persisted identity needs to become executable, resolve it through an app
boundary first. Do not make `LLMRequest` recover behavior from a global route
@@ -137,7 +137,7 @@ starts hiding the real provider-specific config.
- accepts model id only
- returns executable models
- does not accept endpoint/auth/deployment overrides
4. **Model**
4. **Language Model**
- model id
- route value
- provider id
@@ -164,7 +164,7 @@ execution mechanism:
```ts
type ProviderFacade<APIs, Config> = {
readonly id: ProviderID
readonly model: (id: string) => Model
readonly model: (id: string) => LanguageModel
readonly configure: (input?: Config) => ProviderFacade<APIs, Config>
} & APIs
```
@@ -181,8 +181,8 @@ export const OpenAI = {
configure: configureOpenAI,
} satisfies ProviderFacade<
{
responses: (id: string) => Model
chat: (id: string) => Model
responses: (id: string) => LanguageModel
chat: (id: string) => LanguageModel
},
OpenAIConfig
>
@@ -342,14 +342,51 @@ const response =
)
```
HTTP versus WebSocket is represented as named route selectors, not as model or
request overrides. Same protocol, different transport, different route:
For direct provider-facade calls, HTTP versus WebSocket is represented as named
route selectors, not as model or request overrides. Same protocol, different
transport, different route:
```ts
OpenAI.responses("gpt-4o")
OpenAI.responsesWebSocket("gpt-4o")
```
The package-like OpenAI Responses entrypoint instead keeps transport scoped to
Responses settings while preserving the same `model(...)` contract:
```ts
import { model } from "@opencode-ai/ai/providers/openai/responses"
model("gpt-4o", { apiKey, transport: "websocket" })
```
Vertex keeps Gemini, Chat, Responses, and Messages as separate package-like entrypoints,
while sharing project/location resolution and ADC authentication internally:
```ts
import { model } from "@opencode-ai/ai/providers/google-vertex/gemini"
model("gemini-3.5-flash", { project, location: "global" })
```
```ts
import { model } from "@opencode-ai/ai/providers/google-vertex/chat"
model("deepseek-ai/deepseek-v3.2-maas", { project, location: "global" })
```
```ts
import { model } from "@opencode-ai/ai/providers/google-vertex/responses"
model("xai/grok-4.20-reasoning", { project, location: "global" })
```
```ts
import { model } from "@opencode-ai/ai/providers/google-vertex/messages"
model("claude-sonnet-4-6", { project, location: "global" })
```
The client should not require a different public layer just because a selected
route uses WebSocket. Use one `LLMClient.layer` with HTTP and WebSocket runtime
capabilities available; routes that do not need WebSocket simply never touch it.
@@ -468,10 +505,10 @@ const model =
```
That boundary can branch on durable config/catalog metadata and call typed
provider APIs directly. Transport selection belongs there too: map metadata like
`endpoint.websocket` to `OpenAI.responsesWebSocket(apiModelID)`; otherwise use
the normal `OpenAI.responses(apiModelID)` route. The client runtime only executes
the route carried by the model.
provider APIs directly. A direct provider-facade boundary maps metadata like
`endpoint.websocket` to `OpenAI.responsesWebSocket(apiModelID)`. A package-loading
boundary passes `transport: "websocket"` to the OpenAI Responses entrypoint.
The client runtime only executes the route carried by the resulting model.
## Competitive Shape
@@ -491,7 +528,7 @@ The chosen split is:
```txt
Route = execution mechanics
Provider facade = configured route group
Model = selected executable model carrying route value
LanguageModel = selected executable model carrying route value
App boundary = explicit durable-config -> typed-provider call
```
@@ -507,17 +544,18 @@ App boundary = explicit durable-config -> typed-provider call
id.
- No `model(id, overrides)` escape hatch. Model selection takes the model id;
endpoint/auth/deployment customization happens by configuring the route first.
- No transport override on model/request. HTTP SSE versus WebSocket is a named
route selector such as `responses` versus `responsesWebSocket`.
- No transport override on an executable model or request. Direct provider
facades use `responses` versus `responsesWebSocket`; the package-like Responses
entrypoint maps its scoped `transport` setting before constructing the model.
- No separate public `LLMClient.layerWithWebSocket`. The runtime should expose one
client layer with the available transport capabilities.
- No executable `ModelRef`. The executable handle is `Model`; durable model
- No executable `ModelRef`. The executable handle is `LanguageModel`; durable model
identity stays separate and cannot execute on its own.
## Implementation Todo
- [x] Replace the current executable `ModelRef` with `Model`.
- [x] Change `Model.route` to carry a route value, not a `RouteID` string.
- [x] Replace the current executable `ModelRef` with `LanguageModel`.
- [x] Change `LanguageModel.route` to carry a route value, not a `RouteID` string.
- [ ] Keep a separate durable model identity type for persisted/session/catalog
data, likely `{ providerID, modelID }`, and make it clear that it cannot
execute without resolver context.
@@ -528,9 +566,9 @@ App boundary = explicit durable-config -> typed-provider call
- [x] Remove endpoint/auth escape hatches from route model selection; callers must
configure endpoint/auth through `route.with(...)` or provider facades before
calling `.model(...)`.
- [x] Remove request-shaping defaults from `Model`; selected models now carry only
- [x] Remove request-shaping defaults from `LanguageModel`; selected models now carry only
id, provider, and configured route while defaults live on routes or requests.
- [x] Rework `LLMClient.prepare` / `stream` / `generate` to read
- [x] Rework `LLMClient.stream` / `generate` to read
`request.model.route` directly instead of calling `registeredRoute(...)`.
- [x] Remove `Route.make(...)` global registration from the normal execution
path; keep route ids only as diagnostics/provider API labels.
@@ -1,12 +1,12 @@
import { Config, Effect, Formatter, Layer, Schema, Stream } from "effect"
import { LLM, LLMClient, Message, ProviderID, Tool, ToolRuntime } from "@opencode-ai/llm"
import { Route, Auth, Endpoint, Framing, Protocol, RequestExecutor, WebSocketExecutor } from "@opencode-ai/llm/route"
import { OpenAI } from "@opencode-ai/llm/providers"
import { LLM, LLMClient, LLMRequest, Message, ProviderID, Tool, ToolRuntime } from "@opencode-ai/ai"
import { Route, Auth, Endpoint, Framing, Protocol, RequestExecutor, WebSocketExecutor } from "@opencode-ai/ai/route"
import { OpenAI } from "@opencode-ai/ai/providers"
/**
* A runnable walkthrough of the LLM package use-site API.
*
* Run from `packages/llm` with an OpenAI key in the environment:
* Run from `packages/ai` with an OpenAI key in the environment:
*
* OPENAI_API_KEY=... bun example/tutorial.ts
*
@@ -50,18 +50,6 @@ const request = LLM.request({
},
})
// `http` is intentionally not needed for normal calls. This shows the shape for
// newly released provider fields before they deserve a typed provider option.
const rawOverlayExample = LLM.request({
model,
prompt: "Show the final HTTP overlay shape.",
http: {
body: { metadata: { example: "tutorial" } },
headers: { "x-opencode-tutorial": "1" },
query: { debug: "1" },
},
})
// 3. `generate` sends the request and collects the event stream into one
// response object. `response.text` is the collected text output.
const generateOnce = Effect.gen(function* () {
@@ -78,7 +66,10 @@ const streamText = LLM.stream(request).pipe(
Stream.tap((event) =>
Effect.sync(() => {
if (event.type === "text-delta") process.stdout.write(`\ntext: ${event.text}`)
if (event.type === "finish") process.stdout.write(`\nfinish: ${event.reason}\n`)
if (event.type === "finish")
process.stdout.write(
`\nfinish: ${event.reason.normalized}${event.reason.raw ? ` (${event.reason.raw})` : ""}\n`,
)
}),
),
Stream.runDrain,
@@ -113,7 +104,7 @@ const streamWithTools = Effect.gen(function* () {
// A durable agent would persist these messages before starting another
// raw model turn. This tutorial keeps the boundary visible instead.
const followUp = LLM.updateRequest(request, {
const followUp = LLMRequest.update(request, {
messages: [
...request.messages,
Message.assistant([event]),
@@ -194,7 +185,7 @@ const FakeProtocol = Protocol.make<FakeBody, string, string, void>({
event: Schema.String,
initial: () => undefined,
step: (_, frame) => Effect.succeed([undefined, [{ type: "text-delta", id: "text-0", text: frame }]] as const),
onHalt: () => [{ type: "finish", reason: "stop" }],
onHalt: () => [{ type: "finish", reason: { normalized: "stop" } }],
},
})
@@ -219,33 +210,15 @@ const FakeEcho = {
}),
}
// `LLMClient.prepare` is the lower-level inspection hook: it compiles through
// body conversion, validation, endpoint, auth, and HTTP construction without
// sending anything over the network.
const inspectFakeProvider = Effect.gen(function* () {
const prepared = yield* LLMClient.prepare(
LLM.request({
model: FakeEcho.configure().model("tiny-echo"),
prompt: "Show me the provider pipeline.",
}),
)
console.log("\n== fake provider prepare ==")
console.log("route:", prepared.route)
console.log("body:", Formatter.formatJson(prepared.body, { space: 2 }))
})
// Provide the LLM runtime and the HTTP request executor once. Keep one path
// enabled at a time so the tutorial can demonstrate generate, prepare, stream,
// or tool-loop behavior without spending tokens on every example.
// enabled at a time so the tutorial can demonstrate generate, stream, or
// tool-loop behavior without spending tokens on every example.
const requestExecutorLayer = RequestExecutor.fetchLayer
const llmDeps = Layer.mergeAll(requestExecutorLayer, WebSocketExecutor.layer)
const llmClientLayer = LLMClient.layer.pipe(Layer.provide(llmDeps))
const program = Effect.gen(function* () {
// yield* generateOnce
// yield* inspectFakeProvider
// yield* LLMClient.prepare(rawOverlayExample).pipe(Effect.andThen((prepared) => Effect.sync(() => console.log(prepared.body))))
// yield* streamText
// yield* generateStructuredObject
// yield* generateDynamicObject.pipe(Effect.andThen((response) => Effect.sync(() => console.log(response.object))))
+38
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@@ -0,0 +1,38 @@
{
"$schema": "https://json.schemastore.org/package.json",
"version": "1.17.20",
"name": "@opencode-ai/ai",
"type": "module",
"license": "MIT",
"scripts": {
"setup:recording-env": "bun run script/setup-recording-env.ts",
"test": "bun test --timeout 30000 --only-failures",
"typecheck": "tsgo --noEmit && tsgo --noEmit -p tsconfig.types.json",
"build": "tsc -p tsconfig.build.json"
},
"files": [
"dist"
],
"exports": {
".": "./src/index.ts",
"./testing": "./src/testing.ts",
"./*": "./src/*.ts"
},
"devDependencies": {
"@clack/prompts": "1.0.0-alpha.1",
"@effect/platform-node": "catalog:",
"@opencode-ai/http-recorder": "workspace:*",
"@tsconfig/bun": "catalog:",
"@types/bun": "catalog:",
"@typescript/native-preview": "catalog:",
"typescript": "catalog:"
},
"dependencies": {
"@smithy/eventstream-codec": "4.2.14",
"@smithy/util-utf8": "4.2.2",
"@opencode-ai/schema": "workspace:*",
"aws4fetch": "1.0.20",
"effect": "catalog:",
"google-auth-library": "10.5.0"
}
}
+38
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@@ -0,0 +1,38 @@
#!/usr/bin/env bun
import { Script } from "@opencode-ai/script"
import { $ } from "bun"
import { fileURLToPath } from "url"
const dir = fileURLToPath(new URL("..", import.meta.url))
process.chdir(dir)
async function published(name: string, version: string) {
return (await $`npm view ${name}@${version} version`.nothrow()).exitCode === 0
}
await $`bun run build`
const originalText = await Bun.file("package.json").text()
const pkg = JSON.parse(originalText) as {
name: string
version: string
exports: Record<string, string>
}
if (await published(pkg.name, pkg.version)) {
console.log(`already published ${pkg.name}@${pkg.version}`)
} else {
for (const [key, value] of Object.entries(pkg.exports)) {
const file = value.replace("./src/", "./dist/").replace(".ts", "")
// @ts-ignore
pkg.exports[key] = {
import: file + ".js",
types: file + ".d.ts",
}
}
await Bun.write("package.json", JSON.stringify(pkg, null, 2))
try {
await $`bun pm pack`
await $`npm publish *.tgz --tag ${Script.channel} --access public`
} finally {
await Bun.write("package.json", originalText)
}
}
@@ -2,7 +2,7 @@ import * as fs from "node:fs/promises"
import * as path from "node:path"
const RECORDINGS_DIR = path.resolve(import.meta.dir, "..", "test", "fixtures", "recordings")
const MODELS_DEV_URL = "https://models.opencode.ai/api.json"
const MODELS_DEV_URL = "https://models.dev/api.json"
type JsonRecord = Record<string, unknown>
@@ -161,6 +161,18 @@ const PROVIDERS: ReadonlyArray<Provider> = [
vars: [{ name: "TOGETHER_AI_API_KEY" }],
validate: (env) => validateBearer("https://api.together.xyz/v1/models", Redacted.make(env.TOGETHER_AI_API_KEY)),
},
{
id: "minimax",
label: "MiniMax",
tier: "compatible",
note: "Anthropic-compatible Messages text/tool recorded tests",
vars: [{ name: "MINIMAX_API_KEY" }],
validate: (env) =>
HttpClientRequest.get("https://api.minimax.io/anthropic/v1/models").pipe(
HttpClientRequest.setHeader("x-api-key", Redacted.value(Redacted.make(env.MINIMAX_API_KEY))),
executeRequest,
),
},
{
id: "mistral",
label: "Mistral",
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@@ -0,0 +1,148 @@
// Apply an `LLMRequest.cache` policy by injecting `CacheHint`s onto the parts
// the policy designates. Runs once at compile time, before the per-protocol
// body builder, so the existing inline-hint lowering path handles the rest.
//
// The default `"auto"` shape places breakpoints at the last tool definition,
// the first and last distinct system parts, and the conversation tail. This
// exposes reusable tool, base-agent, project, and session prefixes while
// advancing the tail after each tool result keeps the previous cache entry
// within Anthropic's 20-block lookback during long agent turns.
//
// Manual `cache: CacheHint` placements on individual parts are preserved and
// count against the four-breakpoint budget; auto only fills remaining slots.
import { CacheHint, type CachePolicy, type CachePolicyObject } from "./schema/options"
import { LLMRequest, Message, ToolDefinition, type ContentPart } from "./schema/messages"
const AUTO: CachePolicyObject = {
tools: true,
system: true,
messages: { tail: 1 },
}
const NONE: CachePolicyObject = {}
const BREAKPOINT_CAP = 4
// Resolution rules:
// - undefined → "auto" — caching is on by default. The math favors it:
// Anthropic 5m-cache write is 1.25x base, read is 0.1x,
// so a single reuse within 5 minutes already wins.
// - "auto" → tools + first/last system + final message boundary.
// - "none" → no auto placement; manual `CacheHint`s still flow.
// - object form → exactly what the caller asked for.
const resolve = (policy: CachePolicy | undefined): CachePolicyObject => {
if (policy === undefined || policy === "auto") return AUTO
if (policy === "none") return NONE
return policy
}
// Protocols whose wire format ignores inline cache markers (OpenAI's implicit
// prefix caching, Gemini's implicit + out-of-band CachedContent). Skip the
// whole policy pass for these — emitting hints would be harmless but pointless.
const RESPECTS_INLINE_HINTS = new Set(["anthropic-messages", "bedrock-converse", "openrouter"])
const makeHint = (ttlSeconds: number | undefined): CacheHint =>
ttlSeconds !== undefined ? new CacheHint({ type: "ephemeral", ttlSeconds }) : new CacheHint({ type: "ephemeral" })
interface Budget {
remaining: number
}
const markLastTool = (
tools: ReadonlyArray<ToolDefinition>,
hint: CacheHint,
budget: Budget,
): ReadonlyArray<ToolDefinition> => {
if (tools.length === 0) return tools
const last = tools.length - 1
if (tools[last]!.cache || budget.remaining === 0) return tools
budget.remaining -= 1
return tools.map((tool, i) => (i === last ? new ToolDefinition({ ...tool, cache: hint }) : tool))
}
const markSystemBoundaries = (system: LLMRequest["system"], hint: CacheHint, budget: Budget): LLMRequest["system"] => {
if (system.length === 0) return system
let changed = false
const next = system.map((part, index) => {
if ((index !== 0 && index !== system.length - 1) || part.cache || budget.remaining === 0) return part
budget.remaining -= 1
changed = true
return { ...part, cache: hint }
})
return changed ? next : system
}
const lastIndexOfRole = (messages: ReadonlyArray<Message>, role: Message["role"]): number =>
messages.findLastIndex((m) => m.role === role)
// Mark the last text part of `messages[index]`. If no text part exists, mark
// the last content part regardless of type — that's the breakpoint position
// in tool-result-only messages too.
const markMessageAt = (
messages: ReadonlyArray<Message>,
index: number,
hint: CacheHint,
budget: Budget,
): ReadonlyArray<Message> => {
if (index < 0 || index >= messages.length) return messages
const target = messages[index]!
if (target.content.length === 0) return messages
const lastTextIndex = target.content.findLastIndex((part) => part.type === "text")
const markAt = lastTextIndex >= 0 ? lastTextIndex : target.content.length - 1
const existing = target.content[markAt]!
if (("cache" in existing && existing.cache) || budget.remaining === 0) return messages
budget.remaining -= 1
const nextContent = target.content.map((part, i) => (i === markAt ? ({ ...part, cache: hint } as ContentPart) : part))
const next = new Message({ ...target, content: nextContent })
// Single pass over `messages`, substituting the one updated entry. Long
// conversations call this on every request, so avoid `.map()` here — its
// closure dispatch and identity copies show up in profiling.
const result = messages.slice()
result[index] = next
return result
}
const markMessages = (
messages: ReadonlyArray<Message>,
strategy: NonNullable<CachePolicyObject["messages"]>,
hint: CacheHint,
budget: Budget,
): ReadonlyArray<Message> => {
if (messages.length === 0) return messages
if (strategy === "latest-user-message")
return markMessageAt(messages, lastIndexOfRole(messages, "user"), hint, budget)
if (strategy === "latest-assistant")
return markMessageAt(messages, lastIndexOfRole(messages, "assistant"), hint, budget)
const start = Math.max(0, messages.length - strategy.tail)
let next = messages
for (let i = start; i < messages.length; i++) next = markMessageAt(next, i, hint, budget)
return next
}
const countHints = (request: LLMRequest) =>
request.tools.reduce((count, tool) => count + (tool.cache === undefined ? 0 : 1), 0) +
request.system.reduce((count, part) => count + (part.cache === undefined ? 0 : 1), 0) +
request.messages.reduce(
(count, message) =>
count +
message.content.reduce(
(contentCount, part) => contentCount + ("cache" in part && part.cache !== undefined ? 1 : 0),
0,
),
0,
)
export const applyCachePolicy = (request: LLMRequest): LLMRequest => {
if (!RESPECTS_INLINE_HINTS.has(request.model.route.id)) return request
if (request.model.route.id === "openrouter" && (request.cache === undefined || request.cache === "auto")) return request
const policy = resolve(request.cache)
if (!policy.tools && !policy.system && !policy.messages) return request
const hint = makeHint(policy.ttlSeconds)
const budget = { remaining: Math.max(0, BREAKPOINT_CAP - countHints(request)) }
const tools = policy.tools ? markLastTool(request.tools, hint, budget) : request.tools
const system = policy.system ? markSystemBoundaries(request.system, hint, budget) : request.system
const messages = policy.messages ? markMessages(request.messages, policy.messages, hint, budget) : request.messages
if (tools === request.tools && system === request.system && messages === request.messages) return request
return LLMRequest.update(request, { tools, system, messages })
}
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import { Context, Effect, Layer } from "effect"
import { RequestExecutor } from "./route/executor"
import type { ImageOptions, ImageRequest, ImageRequestFor, ImageResponse } from "./image"
import type { AIError } from "./schema"
export type Execute = RequestExecutor.Interface["execute"]
export interface Interface {
readonly generate: <Options extends ImageOptions>(
request: ImageRequestFor<Options>,
) => Effect.Effect<ImageResponse, AIError>
}
export class Service extends Context.Service<Service, Interface>()("@opencode/ImageClient") {}
export const generate = <Options extends ImageOptions>(
request: ImageRequestFor<Options>,
): Effect.Effect<ImageResponse, AIError, Service> =>
Effect.gen(function* () {
const client = yield* Service
return yield* client.generate(request)
})
export const layer: Layer.Layer<Service, never, RequestExecutor.Service> = Layer.effect(
Service,
Effect.gen(function* () {
const executor = yield* RequestExecutor.Service
return Service.of({
generate: (request) => request.model.route.generate(request, executor.execute),
})
}),
)
export const ImageClient = {
Service,
layer,
generate,
} as const
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@@ -0,0 +1,163 @@
import { Effect, Schema } from "effect"
import { HttpOptions, InvalidRequestReason, AIError, ModelID, ProviderID, ProviderMetadata, Usage } from "./schema"
import { ImageClient, Service, type Execute as ImageExecute } from "./image-client"
export interface ImageRoute<Options extends ImageOptions = ImageOptions> {
readonly id: string
readonly generate: (request: ImageRequestFor<Options>, execute: ImageExecute) => Effect.Effect<ImageResponse, AIError>
}
export type ImageOptions = Record<string, unknown>
export class ImageModel<Options extends ImageOptions = ImageOptions> {
declare protected readonly _Options: (options: Options) => Options
readonly id: ModelID
readonly provider: ProviderID
readonly route: ImageRoute<Options>
readonly http?: HttpOptions
constructor(input: ImageModel.Input<Options>) {
this.id = input.id
this.provider = input.provider
this.route = input.route
this.http = input.http
}
static make<Options extends ImageOptions = ImageOptions>(input: ImageModel.MakeInput<Options>) {
return new ImageModel<Options>({
id: ModelID.make(input.id),
provider: ProviderID.make(input.provider),
route: input.route,
http: input.http,
})
}
}
export namespace ImageModel {
export interface Input<Options extends ImageOptions = ImageOptions> {
readonly id: ModelID
readonly provider: ProviderID
readonly route: ImageRoute<Options>
readonly http?: HttpOptions
}
export interface MakeInput<Options extends ImageOptions = ImageOptions>
extends Omit<Input<Options>, "id" | "provider"> {
readonly id: string | ModelID
readonly provider: string | ProviderID
}
}
export const ImageModelSchema = Schema.declare((value): value is ImageModel => value instanceof ImageModel, {
expected: "Image.Model",
})
const ImageBytesInput = Schema.Struct({
type: Schema.Literal("bytes"),
data: Schema.Uint8Array,
mediaType: Schema.String,
})
const ImageUrlInput = Schema.Struct({
type: Schema.Literal("url"),
url: Schema.String,
})
const ImageFileIDInput = Schema.Struct({
type: Schema.Literal("file-id"),
id: Schema.String,
})
const ImageFileURIInput = Schema.Struct({
type: Schema.Literal("file-uri"),
uri: Schema.String,
mediaType: Schema.String,
})
export const ImageInputSchema = Schema.Union([
ImageBytesInput,
ImageUrlInput,
ImageFileIDInput,
ImageFileURIInput,
]).pipe(Schema.toTaggedUnion("type"))
export type ImageInput = Schema.Schema.Type<typeof ImageInputSchema>
export const ImageInput = {
bytes: (data: Uint8Array, mediaType: string): ImageInput => ({ type: "bytes", data, mediaType }),
url: (url: string): ImageInput => ({ type: "url", url }),
file: (id: string): ImageInput => ({ type: "file-id", id }),
fileUri: (uri: string, mediaType: string): ImageInput => ({ type: "file-uri", uri, mediaType }),
} as const
export class ImageRequest extends Schema.Class<ImageRequest>("Image.Request")({
model: ImageModelSchema,
prompt: Schema.String,
images: Schema.optional(Schema.Array(ImageInputSchema)),
options: Schema.optional(Schema.Record(Schema.String, Schema.Unknown)),
http: Schema.optional(HttpOptions),
}) {
declare protected readonly _ImageRequest: void
}
export type ImageRequestFor<Options extends ImageOptions = ImageOptions> = Omit<ImageRequest, "model" | "options"> & {
readonly model: ImageModel<Options>
readonly options?: Options
}
export type ImageModelOptions<Model> = Model extends ImageModel<infer Options> ? Options : never
export type ImageRequestInput<Model extends object = ImageModel> = Omit<
ConstructorParameters<typeof ImageRequest>[0],
"model" | "options" | "http"
> & {
readonly model: Model
readonly options?: NoInfer<ImageModelOptions<Model>>
readonly http?: HttpOptions.Input
} & (Model extends ImageModel<ImageModelOptions<Model>> ? unknown : never)
export class GeneratedImage extends Schema.Class<GeneratedImage>("Image.Generated")({
mediaType: Schema.String,
data: Schema.Union([Schema.String, Schema.Uint8Array]),
providerMetadata: Schema.optional(ProviderMetadata),
}) {}
export class ImageResponse extends Schema.Class<ImageResponse>("Image.Response")({
images: Schema.Array(GeneratedImage),
usage: Schema.optional(Usage),
providerMetadata: Schema.optional(ProviderMetadata),
}) {
get image() {
return this.images[0]
}
}
export function request<const Model extends object>(
input: ImageRequestInput<Model>,
): ImageRequestFor<ImageModelOptions<Model>>
export function request(input: ImageRequest): ImageRequest
export function request(input: ImageRequest | ImageRequestInput) {
if (input instanceof ImageRequest) return input
return new ImageRequest({
...input,
model: input.model as unknown as ImageModel,
http: input.http === undefined ? undefined : HttpOptions.make(input.http),
})
}
export function generate<const Model extends object>(
input: ImageRequestInput<Model>,
): Effect.Effect<ImageResponse, AIError, Service>
export function generate(input: ImageRequest): Effect.Effect<ImageResponse, AIError, Service>
export function generate(input: ImageRequest | ImageRequestInput) {
return Effect.try({
try: () => (input instanceof ImageRequest ? input : request(input)),
catch: (error) =>
new AIError({
module: "Image",
method: "generate",
reason: new InvalidRequestReason({ message: error instanceof Error ? error.message : String(error) }),
}),
}).pipe(Effect.flatMap((request) => ImageClient.generate(request as unknown as ImageRequestFor<ImageOptions>)))
}
export const Image = {
request,
generate,
} as const
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@@ -0,0 +1,39 @@
export { LLMClient } from "./route/client"
export { ImageClient } from "./image-client"
export { Auth } from "./route/auth"
export { Provider } from "./provider"
export { ProviderPackage } from "./provider-package"
export { isContextOverflow, isContextOverflowFailure } from "./provider-error"
export type {
RouteLanguageModelInput,
RouteRoutedLanguageModelInput,
Interface as LLMClientShape,
Service as LLMClientService,
} from "./route/client"
export * from "./schema"
export { GeneratedImage, ImageInput, ImageInputSchema, ImageModel, ImageRequest, ImageResponse } from "./image"
export type { ImageModelOptions, ImageOptions, ImageRequestFor, ImageRequestInput, ImageRoute } from "./image"
export { Image } from "./image"
export { Tool, ToolFailure, toDefinitions } from "./tool"
export { ToolRuntime } from "./tool-runtime"
export type { DispatchResult as ToolDispatchResult, ToolSettlement } from "./tool-runtime"
export type {
AnyExecutableTool,
AnyTool,
ExecutableTool,
ExecutableTools,
Definition as ToolShape,
ToolExecute,
ToolExecuteContext,
ToolModelOutputInput,
Tools,
ToolSchema,
ToolToModelOutput,
} from "./tool"
export * as LLM from "./llm"
export type {
Definition as ProviderDefinition,
LanguageModelFactory as ProviderLanguageModelFactory,
LanguageModelOptions as ProviderLanguageModelOptions,
} from "./provider"
export type { Definition as ProviderPackageDefinition, Settings as ProviderPackageSettings } from "./provider-package"
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@@ -0,0 +1,180 @@
import { Effect, JsonSchema, Schema } from "effect"
import { LLMClient, Service } from "./route/client"
import {
GenerationOptions,
HttpOptions,
InvalidProviderOutputReason,
AIError,
LLMEvent,
LLMRequest,
LLMResponse,
Message,
LanguageModel,
SystemPart,
ToolChoice,
ToolDefinition,
type ContentPart,
type LanguageModelProviderOptions,
} from "./schema"
import { make as makeTool, toDefinitions, type ToolSchema } from "./tool"
/** Input accepted by `LLM.request`, normalized into the canonical `LLMRequest` class. */
export type RequestInput<SelectedLanguageModel extends LanguageModel = LanguageModel> = Omit<
ConstructorParameters<typeof LLMRequest>[0],
"model" | "system" | "messages" | "tools" | "toolChoice" | "generation" | "http" | "providerOptions"
> & {
readonly model: SelectedLanguageModel
readonly system?: string | SystemPart | ReadonlyArray<SystemPart>
readonly prompt?: string | ContentPart | ReadonlyArray<ContentPart>
readonly messages?: ReadonlyArray<Message | Message.Input>
readonly tools?: ReadonlyArray<ToolDefinition.Input>
readonly toolChoice?: ToolChoice.Input
readonly generation?: GenerationOptions.Input
readonly providerOptions?: NoInfer<LanguageModelProviderOptions<SelectedLanguageModel>>
readonly http?: HttpOptions.Input
}
export const generate = LLMClient.generate
export const stream = LLMClient.stream
export const request = <const SelectedLanguageModel extends LanguageModel>(
input: RequestInput<SelectedLanguageModel>,
) => {
const {
system: requestSystem,
prompt,
messages,
tools,
toolChoice: requestToolChoice,
generation: requestGeneration,
providerOptions: requestProviderOptions,
http: requestHttp,
...rest
} = input
return new LLMRequest({
...rest,
system: SystemPart.content(requestSystem),
messages: [...(messages?.map(Message.make) ?? []), ...(prompt === undefined ? [] : [Message.user(prompt)])],
tools: tools?.map(ToolDefinition.make) ?? [],
toolChoice: requestToolChoice ? ToolChoice.make(requestToolChoice) : undefined,
generation: requestGeneration === undefined ? undefined : GenerationOptions.make(requestGeneration),
providerOptions: requestProviderOptions,
http: requestHttp === undefined ? undefined : HttpOptions.make(requestHttp),
})
}
const GENERATE_OBJECT_TOOL_NAME = "generate_object"
const GENERATE_OBJECT_TOOL_DESCRIPTION = "Return the structured result by calling this tool."
type GenerateObjectBase<SelectedLanguageModel extends LanguageModel = LanguageModel> = Omit<
RequestInput<SelectedLanguageModel>,
"tools" | "toolChoice"
>
export class GenerateObjectResponse<T> {
constructor(
readonly object: T,
readonly response: LLMResponse,
) {}
get events() {
return this.response.events
}
get usage() {
return this.response.usage
}
}
export interface GenerateObjectOptions<
S extends ToolSchema<any>,
SelectedLanguageModel extends LanguageModel = LanguageModel,
> extends GenerateObjectBase<SelectedLanguageModel> {
readonly schema: S
}
export interface GenerateObjectDynamicOptions<SelectedLanguageModel extends LanguageModel = LanguageModel>
extends GenerateObjectBase<SelectedLanguageModel> {
/** Raw JSON Schema object describing the expected output shape. */
readonly jsonSchema: JsonSchema.JsonSchema
}
const runGenerateObject = Effect.fn("LLM.generateObject")(function* (
options: GenerateObjectBase,
tool: ReturnType<typeof makeTool>,
) {
const baseRequest = request(options)
const generateRequest = LLMRequest.update(baseRequest, {
tools: toDefinitions({ [GENERATE_OBJECT_TOOL_NAME]: tool }),
toolChoice: ToolChoice.named(GENERATE_OBJECT_TOOL_NAME),
})
const response = yield* LLMClient.generate(generateRequest)
const call = response.toolCalls.find(
(event) => LLMEvent.is.toolCall(event) && event.name === GENERATE_OBJECT_TOOL_NAME,
)
if (!call || !LLMEvent.is.toolCall(call))
return yield* new AIError({
module: "LLM",
method: "generateObject",
reason: new InvalidProviderOutputReason({
message: `generateObject: model did not call the forced \`${GENERATE_OBJECT_TOOL_NAME}\` tool`,
}),
})
const object = yield* tool._decode(call.input).pipe(
Effect.mapError(
(error) =>
new AIError({
module: "LLM",
method: "generateObject",
reason: new InvalidProviderOutputReason({
message: `generateObject: tool input failed schema decode: ${error.message}`,
}),
}),
),
)
return new GenerateObjectResponse(object, response)
})
/**
* Run a model and decode its output against `schema`. Works on every protocol
* because it forces a synthetic tool call internally — provider-native JSON
* modes are intentionally avoided so behaviour is uniform.
*
* Two input modes:
*
* 1. `schema: EffectSchema<T>` — `.object` is decoded and typed as `T`.
* Decode failures surface as `AIError`.
* 2. `jsonSchema: JsonSchema.JsonSchema` — `.object` is `unknown`. Use when
* the schema is only available at runtime (MCP, plugin manifests). Caller validates.
*/
export function generateObject<const SelectedLanguageModel extends LanguageModel, S extends ToolSchema<any>>(
options: GenerateObjectOptions<S, SelectedLanguageModel>,
): Effect.Effect<GenerateObjectResponse<Schema.Schema.Type<S>>, AIError, Service>
export function generateObject<const SelectedLanguageModel extends LanguageModel>(
options: GenerateObjectDynamicOptions<SelectedLanguageModel>,
): Effect.Effect<GenerateObjectResponse<unknown>, AIError, Service>
export function generateObject(options: GenerateObjectOptions<ToolSchema<any>> | GenerateObjectDynamicOptions) {
if ("schema" in options) {
const { schema, ...rest } = options
return runGenerateObject(
rest,
makeTool({
description: GENERATE_OBJECT_TOOL_DESCRIPTION,
parameters: schema,
success: Schema.Unknown as ToolSchema<unknown>,
execute: () => Effect.void,
}),
)
}
const { jsonSchema, ...rest } = options
return runGenerateObject(
rest,
makeTool({
description: GENERATE_OBJECT_TOOL_DESCRIPTION,
jsonSchema,
execute: () => Effect.void,
}),
)
}
+1
View File
@@ -0,0 +1 @@
export * from "./protocols/index"
File diff suppressed because it is too large Load Diff
@@ -3,13 +3,15 @@ import { Route } from "../route/client"
import { Endpoint } from "../route/endpoint"
import { Protocol } from "../route/protocol"
import {
AIError,
LLMEvent,
Usage,
type CacheHint,
type FinishReason,
type FinishReasonDetails,
type JsonSchema,
type LLMRequest,
type ModelToolSchemaCompatibility,
type LanguageModelToolSchemaCompatibility,
type ProviderMetadata,
type ReasoningPart,
type ToolCallPart,
@@ -17,7 +19,7 @@ import {
type ToolResultPart,
} from "../schema"
import { BedrockEventStream } from "./bedrock-event-stream"
import { isContextOverflow } from "../provider-error"
import { classifyProviderFailure } from "../provider-error"
import { JsonObject, optionalArray, ProviderShared } from "./shared"
import { BedrockAuth } from "./utils/bedrock-auth"
import { BedrockCache } from "./utils/bedrock-cache"
@@ -51,6 +53,7 @@ const BedrockToolResultContentItem = Schema.Union([
Schema.Struct({ text: Schema.String }),
Schema.Struct({ json: Schema.Unknown }),
BedrockMedia.ImageBlock,
BedrockMedia.DocumentBlock,
])
const BedrockToolResultBlock = Schema.Struct({
@@ -63,14 +66,15 @@ const BedrockToolResultBlock = Schema.Struct({
type BedrockToolResultBlock = Schema.Schema.Type<typeof BedrockToolResultBlock>
const BedrockReasoningBlock = Schema.Struct({
reasoningContent: Schema.Struct({
reasoningText: Schema.optional(
Schema.Struct({
reasoningContent: Schema.Union([
Schema.Struct({
reasoningText: Schema.Struct({
text: Schema.String,
signature: Schema.optional(Schema.String),
}),
),
}),
}),
Schema.Struct({ redactedContent: Schema.String }),
]),
})
const BedrockUserBlock = Schema.Union([
@@ -151,6 +155,12 @@ const BedrockUsageSchema = Schema.Struct({
})
type BedrockUsageSchema = Schema.Schema.Type<typeof BedrockUsageSchema>
const BedrockStreamException = Schema.Struct({
message: Schema.optional(Schema.String),
originalMessage: Schema.optional(Schema.String),
originalStatusCode: Schema.optional(Schema.Number),
})
// Streaming event shape — the AWS event stream wraps each JSON payload by its
// `:event-type` header (e.g. `messageStart`, `contentBlockDelta`). We
// reconstruct that wrapping in `decodeFrames` below so the event schema can
@@ -178,6 +188,11 @@ const BedrockEvent = Schema.Struct({
Schema.Struct({
text: Schema.optional(Schema.String),
signature: Schema.optional(Schema.String),
// Blob fields in Bedrock's JSON event stream are base64 strings.
redactedContent: Schema.optional(Schema.String),
// Vercel's Bedrock provider exposes the same delta under
// Anthropic's shorter `data` spelling.
data: Schema.optional(Schema.String),
}),
),
}),
@@ -197,11 +212,11 @@ const BedrockEvent = Schema.Struct({
metrics: Schema.optional(Schema.Unknown),
}),
),
internalServerException: Schema.optional(Schema.Struct({ message: Schema.String })),
modelStreamErrorException: Schema.optional(Schema.Struct({ message: Schema.String })),
validationException: Schema.optional(Schema.Struct({ message: Schema.String })),
throttlingException: Schema.optional(Schema.Struct({ message: Schema.String })),
serviceUnavailableException: Schema.optional(Schema.Struct({ message: Schema.String })),
internalServerException: Schema.optional(BedrockStreamException),
modelStreamErrorException: Schema.optional(BedrockStreamException),
validationException: Schema.optional(BedrockStreamException),
throttlingException: Schema.optional(BedrockStreamException),
serviceUnavailableException: Schema.optional(BedrockStreamException),
})
type BedrockEvent = Schema.Schema.Type<typeof BedrockEvent>
@@ -217,7 +232,7 @@ const lowerToolSpec = (tool: ToolDefinition, inputSchema: JsonSchema): BedrockTo
})
const lowerTools = (
compatibility: ModelToolSchemaCompatibility | undefined,
compatibility: LanguageModelToolSchemaCompatibility | undefined,
breakpoints: BedrockCache.Breakpoints,
tools: ReadonlyArray<ToolDefinition>,
): BedrockTool[] => {
@@ -257,6 +272,11 @@ const reasoningSignature = (part: ReasoningPart) => {
)
}
const reasoningRedactedData = (part: ReasoningPart) => {
const bedrock = part.providerMetadata?.bedrock
return ProviderShared.isRecord(bedrock) && typeof bedrock.redactedData === "string" ? bedrock.redactedData : undefined
}
const lowerToolCall = (part: ToolCallPart): BedrockToolUseBlock => ({
toolUse: {
toolUseId: part.id,
@@ -282,8 +302,6 @@ const lowerToolResultContent = Effect.fn("BedrockConverse.lowerToolResultContent
data: item.uri,
filename: item.name,
})
if (!("image" in media))
return yield* ProviderShared.invalidRequest("Bedrock Converse only supports image media in tool results")
content.push(media)
}
return content
@@ -348,11 +366,13 @@ const lowerMessages = Effect.fn("BedrockConverse.lowerMessages")(function* (
continue
}
if (part.type === "reasoning") {
content.push({
reasoningContent: {
reasoningText: { text: part.text, signature: reasoningSignature(part) },
},
})
const signature = reasoningSignature(part)
const redactedData = reasoningRedactedData(part)
if (signature === undefined && redactedData !== undefined) {
content.push({ reasoningContent: { redactedContent: redactedData } })
continue
}
content.push({ reasoningContent: { reasoningText: { text: part.text, signature } } })
continue
}
if (part.type === "tool-call") {
@@ -392,8 +412,13 @@ const fromRequest = Effect.fn("BedrockConverse.fromRequest")(function* (request:
// tools → system → messages order to favour the highest-impact prefixes.
const breakpoints = BedrockCache.breakpoints()
const toolConfig =
request.tools.length > 0 && request.toolChoice?.type !== "none"
? { tools: lowerTools(request.model.compatibility?.toolSchema, breakpoints, request.tools), toolChoice }
request.tools.length > 0
? {
tools: lowerTools(request.model.compatibility?.toolSchema, breakpoints, request.tools),
// Converse has no native "none". Keep definitions stable for prompt
// caching and omit only the unsupported choice.
toolChoice,
}
: undefined
const system = request.system.length === 0 ? undefined : lowerSystem(breakpoints, request.system)
const messages = yield* lowerMessages(request, breakpoints)
@@ -430,27 +455,29 @@ const fromRequest = Effect.fn("BedrockConverse.fromRequest")(function* (request:
// =============================================================================
const mapFinishReason = (reason: string): FinishReason => {
if (reason === "end_turn" || reason === "stop_sequence") return "stop"
if (reason === "max_tokens") return "length"
if (reason === "max_tokens" || reason === "model_context_window_exceeded") return "length"
if (reason === "tool_use") return "tool-calls"
if (reason === "content_filtered" || reason === "guardrail_intervened") return "content-filter"
if (reason === "malformed_model_output" || reason === "malformed_tool_use") return "error"
return "unknown"
}
// AWS Bedrock Converse reports `inputTokens` (inclusive total) with
// `cacheReadInputTokens` and `cacheWriteInputTokens` as subsets. Pass
// the total through and derive the non-cached breakdown. Bedrock does
// not break reasoning out of `outputTokens` for any current model.
// AWS reports inputTokens separately from cache reads and writes.
// Bedrock does not break reasoning out of outputTokens for current models.
const mapUsage = (usage: BedrockUsageSchema | undefined): Usage | undefined => {
if (!usage) return undefined
const cacheTotal = (usage.cacheReadInputTokens ?? 0) + (usage.cacheWriteInputTokens ?? 0)
const nonCached = ProviderShared.subtractTokens(usage.inputTokens, cacheTotal)
const inputTokens = ProviderShared.sumTokens(
usage.inputTokens,
usage.cacheReadInputTokens,
usage.cacheWriteInputTokens,
)
return new Usage({
inputTokens: usage.inputTokens,
inputTokens,
outputTokens: usage.outputTokens,
nonCachedInputTokens: nonCached,
nonCachedInputTokens: usage.inputTokens,
cacheReadInputTokens: usage.cacheReadInputTokens,
cacheWriteInputTokens: usage.cacheWriteInputTokens,
totalTokens: ProviderShared.totalTokens(usage.inputTokens, usage.outputTokens, usage.totalTokens),
totalTokens: ProviderShared.totalTokens(inputTokens, usage.outputTokens, usage.totalTokens),
providerMetadata: { bedrock: usage },
})
}
@@ -460,7 +487,7 @@ interface ParserState {
// Bedrock splits the finish into `messageStop` (carries `stopReason`) and
// `metadata` (carries usage). Hold the terminal event in state so `onHalt`
// can emit exactly one finish after both chunks have had a chance to arrive.
readonly pendingFinish: { readonly reason: FinishReason; readonly usage?: Usage } | undefined
readonly pendingFinish: { readonly reason: FinishReasonDetails; readonly usage?: Usage } | undefined
readonly hasToolCalls: boolean
readonly lifecycle: Lifecycle.State
readonly reasoningSignatures: Readonly<Record<number, string>>
@@ -511,12 +538,26 @@ const step = (state: ParserState, event: BedrockEvent) =>
const index = event.contentBlockDelta.contentBlockIndex
const reasoning = event.contentBlockDelta.delta.reasoningContent
const events: LLMEvent[] = []
const redactedData = reasoning.redactedContent ?? reasoning.data
const providerMetadata = reasoning.signature
? bedrockMetadata({ signature: reasoning.signature })
: redactedData !== undefined
? bedrockMetadata({ redactedData })
: undefined
const lifecycle =
reasoning.text !== undefined || providerMetadata !== undefined
? Lifecycle.reasoningDelta(
state.lifecycle,
events,
`reasoning-${index}`,
reasoning.text ?? "",
providerMetadata,
)
: state.lifecycle
return [
{
...state,
lifecycle: reasoning.text
? Lifecycle.reasoningDelta(state.lifecycle, events, `reasoning-${index}`, reasoning.text)
: state.lifecycle,
lifecycle,
reasoningSignatures: reasoning.signature
? { ...state.reasoningSignatures, [index]: reasoning.signature }
: state.reasoningSignatures,
@@ -560,7 +601,9 @@ const step = (state: ParserState, event: BedrockEvent) =>
return [
{
...state,
hasToolCalls: resultEvents.some(LLMEvent.is.toolCall) ? true : state.hasToolCalls,
hasToolCalls:
resultEvents.some((event) => LLMEvent.is.toolCall(event) || LLMEvent.is.toolInputError(event)) ||
state.hasToolCalls,
lifecycle,
tools: result.tools,
reasoningSignatures: Object.fromEntries(
@@ -575,41 +618,52 @@ const step = (state: ParserState, event: BedrockEvent) =>
return [
{
...state,
pendingFinish: { reason: mapFinishReason(event.messageStop.stopReason), usage: state.pendingFinish?.usage },
pendingFinish: {
reason: {
normalized: mapFinishReason(event.messageStop.stopReason),
raw: event.messageStop.stopReason,
},
usage: state.pendingFinish?.usage,
},
},
[],
] as const
}
if (event.metadata) {
const usage = mapUsage(event.metadata.usage)
return [{ ...state, pendingFinish: { reason: state.pendingFinish?.reason ?? "stop", usage } }, []] as const
}
if (event.internalServerException || event.modelStreamErrorException || event.serviceUnavailableException) {
const message =
event.internalServerException?.message ??
event.modelStreamErrorException?.message ??
event.serviceUnavailableException?.message ??
"Bedrock Converse stream error"
return [state, [LLMEvent.providerError({ message, retryable: true })]] as const
}
if (event.validationException || event.throttlingException) {
const message =
event.validationException?.message ?? event.throttlingException?.message ?? "Bedrock Converse error"
const usage = mapUsage(event.metadata.usage) ?? state.pendingFinish?.usage
return [
state,
[
LLMEvent.providerError({
message,
classification: event.validationException && isContextOverflow(message) ? "context-overflow" : undefined,
retryable: event.throttlingException !== undefined,
}),
],
{
...state,
pendingFinish: {
reason: state.pendingFinish?.reason ?? { normalized: "stop" },
usage,
},
},
[],
] as const
}
const exception = (
[
["internalServerException", event.internalServerException],
["modelStreamErrorException", event.modelStreamErrorException],
["serviceUnavailableException", event.serviceUnavailableException],
["throttlingException", event.throttlingException],
["validationException", event.validationException],
] as const
).find((entry) => entry[1] !== undefined)
if (exception) {
return yield* new AIError({
module: ADAPTER,
method: "stream",
reason: classifyProviderFailure({
message: exception[1]?.message ?? exception[1]?.originalMessage ?? "Bedrock Converse stream error",
code: exception[0],
}),
})
}
return [state, []] as const
})
@@ -620,8 +674,13 @@ const onHalt = (state: ParserState): ReadonlyArray<LLMEvent> =>
? (() => {
const events: LLMEvent[] = []
Lifecycle.finish(state.lifecycle, events, {
reason:
state.pendingFinish.reason === "stop" && state.hasToolCalls ? "tool-calls" : state.pendingFinish.reason,
reason: {
...state.pendingFinish.reason,
normalized:
state.pendingFinish.reason.normalized === "stop" && state.hasToolCalls
? "tool-calls"
: state.pendingFinish.reason.normalized,
},
usage: state.pendingFinish.usage,
})
return events
@@ -658,6 +717,7 @@ export const protocol = Protocol.make({
export const route = Route.make({
id: ADAPTER,
provider: "bedrock",
providerMetadataKey: "bedrock",
protocol,
// Bedrock's URL embeds the region in the route endpoint host and the
// validated modelId in the path. We read the validated body so the URL
@@ -1,7 +1,7 @@
import { EventStreamCodec } from "@smithy/eventstream-codec"
import { fromUtf8, toUtf8 } from "@smithy/util-utf8"
import { Effect, Stream } from "effect"
import type { Framing } from "../route/framing"
import { Framing } from "../route/framing"
import { ProviderShared } from "./shared"
// Bedrock streams responses using the AWS event stream binary protocol — each
@@ -53,8 +53,22 @@ const consumeFrames = (route: string) => (state: FrameBufferState, chunk: Uint8A
})
cursor = { buffer: cursor.buffer, offset: cursor.offset + totalLength }
if (decoded.headers[":message-type"]?.value !== "event") continue
const eventType = decoded.headers[":event-type"]?.value
const messageType = decoded.headers[":message-type"]?.value
if (messageType === "error") {
const code = decoded.headers[":error-code"]?.value
const message = decoded.headers[":error-message"]?.value
return yield* ProviderShared.eventError(
route,
[code, message].filter((value): value is string => typeof value === "string").join(": ") ||
"Bedrock Converse event-stream error",
)
}
const eventType =
messageType === "event"
? decoded.headers[":event-type"]?.value
: messageType === "exception"
? decoded.headers[":exception-type"]?.value
: undefined
if (typeof eventType !== "string") continue
const payload = utf8.decode(decoded.body)
if (!payload) continue
@@ -79,7 +93,7 @@ const consumeFrames = (route: string) => (state: FrameBufferState, chunk: Uint8A
* under its `:event-type` header so the chunk schema can match the JSON
* payload directly.
*/
export const framing = (route: string): Framing<object> => ({
export const framing = (route: string): Framing.Definition<object> => ({
id: "aws-event-stream",
frame: (bytes) => bytes.pipe(Stream.mapAccumEffect(() => initialFrameBuffer, consumeFrames(route))),
})
+614
View File
@@ -0,0 +1,614 @@
import { Effect, Schema } from "effect"
import { Tool } from "@opencode-ai/schema/tool"
import { Route } from "../route/client"
import { Auth } from "../route/auth"
import { Endpoint } from "../route/endpoint"
import { Framing } from "../route/framing"
import { Protocol } from "../route/protocol"
import {
LLMEvent,
Usage,
type FinishReason,
type JsonSchema,
type LLMRequest,
type MediaPart,
type ProviderOptions,
type ProviderMetadata,
type TextPart,
type ToolCallPart,
type ToolDefinition,
} from "../schema"
import { JsonObject, optionalArray, ProviderShared } from "./shared"
import { GeminiToolSchema } from "./utils/gemini-tool-schema"
import { Lifecycle } from "./utils/lifecycle"
import { ToolSchemaProjection } from "./utils/tool-schema"
const ADAPTER = "gemini"
const MEDIA_MIMES = new Set<string>(ProviderShared.MEDIA_MIMES)
export const DEFAULT_BASE_URL = "https://generativelanguage.googleapis.com/v1beta"
export interface OptionsInput {
readonly [key: string]: unknown
readonly cachedContent?: string
readonly safetySettings?: ReadonlyArray<{
readonly category:
| "HARM_CATEGORY_UNSPECIFIED"
| "HARM_CATEGORY_HATE_SPEECH"
| "HARM_CATEGORY_DANGEROUS_CONTENT"
| "HARM_CATEGORY_HARASSMENT"
| "HARM_CATEGORY_SEXUALLY_EXPLICIT"
| "HARM_CATEGORY_CIVIC_INTEGRITY"
| (string & {})
readonly threshold:
| "HARM_BLOCK_THRESHOLD_UNSPECIFIED"
| "BLOCK_LOW_AND_ABOVE"
| "BLOCK_MEDIUM_AND_ABOVE"
| "BLOCK_ONLY_HIGH"
| "BLOCK_NONE"
| "OFF"
| (string & {})
}>
readonly serviceTier?: "standard" | "flex" | "priority" | (string & {})
readonly thinkingConfig?: {
readonly thinkingBudget?: number
readonly includeThoughts?: boolean
readonly thinkingLevel?: "minimal" | "low" | "medium" | "high" | (string & {})
}
}
export type ProviderOptionsInput = ProviderOptions & {
readonly gemini?: OptionsInput
}
// =============================================================================
// Request Body Schema
// =============================================================================
const GeminiTextPart = Schema.Struct({
text: Schema.String,
thought: Schema.optional(Schema.Boolean),
thoughtSignature: Schema.optional(Schema.String),
})
const GeminiInlineDataPart = Schema.Struct({
inlineData: Schema.Struct({
mimeType: Schema.String,
data: Schema.String,
}),
})
type GeminiInlineDataPart = Schema.Schema.Type<typeof GeminiInlineDataPart>
const GeminiFunctionCallPart = Schema.Struct({
functionCall: Schema.Struct({
id: Schema.optional(Schema.String),
name: Schema.String,
args: Schema.Unknown,
}),
thoughtSignature: Schema.optional(Schema.String),
})
const GeminiFunctionResponsePart = Schema.Struct({
functionResponse: Schema.Struct({
id: Schema.optional(Schema.String),
name: Schema.String,
response: Schema.Unknown,
parts: Schema.optional(Schema.Array(GeminiInlineDataPart)),
}),
})
const GeminiContentPart = Schema.Union([
GeminiTextPart,
GeminiInlineDataPart,
GeminiFunctionCallPart,
GeminiFunctionResponsePart,
])
const GeminiContent = Schema.Struct({
role: Schema.Literals(["user", "model"]),
parts: Schema.Array(GeminiContentPart),
})
type GeminiContent = Schema.Schema.Type<typeof GeminiContent>
const GeminiSystemInstruction = Schema.Struct({
parts: Schema.Array(Schema.Struct({ text: Schema.String })),
})
const GeminiFunctionDeclaration = Schema.Struct({
name: Schema.String,
description: Schema.String,
parameters: Schema.optional(JsonObject),
})
const GeminiTool = Schema.Struct({
functionDeclarations: Schema.Array(GeminiFunctionDeclaration),
})
const GeminiToolConfig = Schema.Struct({
functionCallingConfig: Schema.Struct({
mode: Schema.Literals(["AUTO", "NONE", "ANY"]),
allowedFunctionNames: optionalArray(Schema.String),
}),
})
const GeminiThinkingConfig = Schema.Struct({
thinkingBudget: Schema.optional(Schema.Number),
includeThoughts: Schema.optional(Schema.Boolean),
thinkingLevel: Schema.optional(Schema.String),
})
const GeminiSafetySetting = Schema.Struct({
category: Schema.String,
threshold: Schema.String,
})
const GeminiGenerationConfig = Schema.Struct({
maxOutputTokens: Schema.optional(Schema.Number),
temperature: Schema.optional(Schema.Number),
topP: Schema.optional(Schema.Number),
topK: Schema.optional(Schema.Number),
stopSequences: optionalArray(Schema.String),
thinkingConfig: Schema.optional(GeminiThinkingConfig),
})
const GeminiBodyFields = {
cachedContent: Schema.optional(Schema.String),
contents: Schema.Array(GeminiContent),
safetySettings: optionalArray(GeminiSafetySetting),
serviceTier: Schema.optional(Schema.String),
systemInstruction: Schema.optional(GeminiSystemInstruction),
tools: optionalArray(GeminiTool),
toolConfig: Schema.optional(GeminiToolConfig),
generationConfig: Schema.optional(GeminiGenerationConfig),
}
const GeminiBody = Schema.Struct(GeminiBodyFields)
export type GeminiBody = Schema.Schema.Type<typeof GeminiBody>
const GeminiUsage = Schema.Struct({
cachedContentTokenCount: Schema.optional(Schema.Number),
thoughtsTokenCount: Schema.optional(Schema.Number),
promptTokenCount: Schema.optional(Schema.Number),
candidatesTokenCount: Schema.optional(Schema.Number),
totalTokenCount: Schema.optional(Schema.Number),
})
type GeminiUsage = Schema.Schema.Type<typeof GeminiUsage>
const GeminiCandidate = Schema.Struct({
content: Schema.optional(GeminiContent),
finishReason: Schema.optional(Schema.String),
})
const GeminiEvent = Schema.Struct({
candidates: optionalArray(GeminiCandidate),
usageMetadata: Schema.optional(GeminiUsage),
})
type GeminiEvent = Schema.Schema.Type<typeof GeminiEvent>
interface ParserState {
readonly finishReason?: string
readonly hasToolCalls: boolean
readonly nextToolCallId: number
readonly usage?: Usage
readonly lifecycle: Lifecycle.State
readonly reasoningSignature?: string
}
// =============================================================================
// Tool Schema Conversion
// =============================================================================
// Tool-schema conversion has two distinct concerns:
//
// 1. Sanitize — fix common authoring mistakes Gemini rejects: integer/number
// enums (must be strings), `required` entries that don't match a property,
// untyped arrays (`items` must be present), and `properties`/`required`
// keys on non-object scalars. Mirrors OpenCode's historical Gemini rules.
//
// 2. Project — lossy mapping from JSON Schema to Gemini's schema dialect:
// drop empty objects, derive `nullable: true` from `type: [..., "null"]`,
// coerce `const` to `[const]` enum, recurse properties/items, propagate
// only an allowlisted set of keys (description, required, format, type,
// properties, items, allOf, anyOf, oneOf, minLength). Anything outside the
// allowlist (e.g. `additionalProperties`, `$ref`) is silently dropped.
//
// Sanitize runs first, then project. The implementation lives in
// `utils/gemini-tool-schema` so this protocol keeps the same shape as the other
// provider protocols.
// =============================================================================
// Request Lowering
// =============================================================================
const lowerTool = (tool: ToolDefinition, inputSchema: JsonSchema) => ({
name: tool.name,
description: tool.description,
parameters: GeminiToolSchema.convert(inputSchema),
})
const lowerToolConfig = (toolChoice: NonNullable<LLMRequest["toolChoice"]>) =>
ProviderShared.matchToolChoice("Gemini", toolChoice, {
auto: () => ({ functionCallingConfig: { mode: "AUTO" as const } }),
none: () => ({ functionCallingConfig: { mode: "NONE" as const } }),
required: () => ({ functionCallingConfig: { mode: "ANY" as const } }),
tool: (name) => ({ functionCallingConfig: { mode: "ANY" as const, allowedFunctionNames: [name] } }),
})
const lowerUserPart = Effect.fn("Gemini.lowerUserPart")(function* (part: TextPart | MediaPart) {
if (part.type === "text") return { text: part.text }
const media = yield* ProviderShared.validateMedia("Gemini", part, MEDIA_MIMES)
return { inlineData: { mimeType: media.mime, data: media.base64 } }
})
const googleMetadata = (metadata: Record<string, unknown>): ProviderMetadata => ({ google: metadata })
const thoughtSignature = (providerMetadata: ProviderMetadata | undefined) => {
const google = providerMetadata?.google
return ProviderShared.isRecord(google) && typeof google.thoughtSignature === "string"
? google.thoughtSignature
: undefined
}
const functionCallId = (providerMetadata: ProviderMetadata | undefined) => {
const google = providerMetadata?.google
return ProviderShared.isRecord(google) && typeof google.functionCallId === "string"
? google.functionCallId
: undefined
}
const lowerToolCall = (part: ToolCallPart) => ({
functionCall: { id: functionCallId(part.providerMetadata), name: part.name, args: part.input },
thoughtSignature: thoughtSignature(part.providerMetadata),
})
const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMRequest) {
const contents: GeminiContent[] = []
for (const message of request.messages) {
if (message.role === "system") {
const part = yield* ProviderShared.wrappedSystemUpdate("Gemini", message)
const previous = contents.at(-1)
if (previous?.role === "user")
contents[contents.length - 1] = { role: "user", parts: [...previous.parts, { text: part.text }] }
else contents.push({ role: "user", parts: [{ text: part.text }] })
continue
}
if (message.role === "user") {
const parts: Array<Schema.Schema.Type<typeof GeminiContentPart>> = []
for (const part of message.content) {
if (!ProviderShared.supportsContent(part, ["text", "media"]))
return yield* ProviderShared.unsupportedContent("Gemini", "user", ["text", "media"])
parts.push(yield* lowerUserPart(part))
}
contents.push({ role: "user", parts })
continue
}
if (message.role === "assistant") {
const parts: Array<Schema.Schema.Type<typeof GeminiContentPart>> = []
for (const part of message.content) {
if (!ProviderShared.supportsContent(part, ["text", "reasoning", "tool-call"]))
return yield* ProviderShared.unsupportedContent("Gemini", "assistant", ["text", "reasoning", "tool-call"])
if (part.type === "text") {
parts.push({ text: part.text })
continue
}
if (part.type === "reasoning") {
parts.push({ text: part.text, thought: true, thoughtSignature: thoughtSignature(part.providerMetadata) })
continue
}
if (part.type === "tool-call") {
parts.push(lowerToolCall(part))
continue
}
}
contents.push({ role: "model", parts })
continue
}
const parts: Array<Schema.Schema.Type<typeof GeminiContentPart>> = []
for (const part of message.content) {
if (!ProviderShared.supportsContent(part, ["tool-result"]))
return yield* ProviderShared.unsupportedContent("Gemini", "tool", ["tool-result"])
if (part.result.type !== "content") {
parts.push({
functionResponse: {
id: functionCallId(part.providerMetadata),
name: part.name,
response: {
name: part.name,
content: ProviderShared.toolResultText(part),
},
},
})
continue
}
const content: ReadonlyArray<Tool.Content> = part.result.value
const text = content.filter((item) => item.type === "text").map((item) => item.text)
const media: GeminiInlineDataPart[] = []
for (const item of content) {
if (item.type === "text") continue
const value = yield* ProviderShared.validateToolFile("Gemini", item, MEDIA_MIMES)
media.push({ inlineData: { mimeType: value.mime, data: value.base64 } })
}
parts.push({
functionResponse: {
id: functionCallId(part.providerMetadata),
name: part.name,
response: {
name: part.name,
content: text.join("\n"),
},
parts: media.length > 0 ? media : undefined,
},
})
}
contents.push({ role: "user", parts })
}
return contents
})
const resolveOptions = (request: LLMRequest) => {
const input = request.providerOptions?.gemini
const value = input?.thinkingConfig
const thinkingConfig = {
thinkingBudget:
ProviderShared.isRecord(value) && typeof value.thinkingBudget === "number" ? value.thinkingBudget : undefined,
includeThoughts:
ProviderShared.isRecord(value) && typeof value.includeThoughts === "boolean"
? value.includeThoughts
: ProviderShared.isRecord(value)
? true
: undefined,
thinkingLevel:
ProviderShared.isRecord(value) && typeof value.thinkingLevel === "string" ? value.thinkingLevel : undefined,
}
return {
cachedContent: typeof input?.cachedContent === "string" ? input.cachedContent : undefined,
safetySettings: mapSafetySettings(input?.safetySettings),
serviceTier: typeof input?.serviceTier === "string" ? input.serviceTier : undefined,
thinkingConfig: Object.values(thinkingConfig).some((item) => item !== undefined) ? thinkingConfig : undefined,
}
}
function mapSafetySettings(value: unknown) {
if (!Array.isArray(value)) return undefined
const settings = value.flatMap((item) =>
ProviderShared.isRecord(item) && typeof item.category === "string" && typeof item.threshold === "string"
? [{ category: item.category, threshold: item.threshold }]
: [],
)
return settings
}
const fromRequest = Effect.fn("Gemini.fromRequest")(function* (request: LLMRequest) {
const hasTools = request.tools.length > 0
const generation = request.generation
const options = resolveOptions(request)
const toolSchemaCompatibility = request.model.compatibility?.toolSchema
const generationConfig = {
maxOutputTokens: generation?.maxTokens,
temperature: generation?.temperature,
topP: generation?.topP,
topK: generation?.topK,
stopSequences: generation?.stop,
thinkingConfig: options.thinkingConfig,
}
return {
cachedContent: options.cachedContent,
contents: yield* lowerMessages(request),
safetySettings: options.safetySettings,
serviceTier: options.serviceTier,
systemInstruction:
request.system.length === 0 ? undefined : { parts: [{ text: ProviderShared.joinText(request.system) }] },
tools: hasTools
? [
{
functionDeclarations: request.tools.map((tool) =>
lowerTool(tool, ToolSchemaProjection.modelCompatibility(tool.inputSchema, toolSchemaCompatibility)),
),
},
]
: undefined,
toolConfig: hasTools && request.toolChoice ? yield* lowerToolConfig(request.toolChoice) : undefined,
generationConfig: Object.values(generationConfig).some((value) => value !== undefined)
? generationConfig
: undefined,
}
})
// =============================================================================
// Stream Parsing
// =============================================================================
// Gemini reports `promptTokenCount` (inclusive total) with a
// `cachedContentTokenCount` subset. `candidatesTokenCount` is *exclusive*
// of `thoughtsTokenCount` — visible-only, not a total — so we sum the two
// to produce the inclusive `outputTokens` the rest of the contract expects.
const mapUsage = (usage: GeminiUsage | undefined) => {
if (!usage) return undefined
const cached = usage.cachedContentTokenCount
const nonCached = ProviderShared.subtractTokens(usage.promptTokenCount, cached)
// `candidatesTokenCount` is visible-only; sum with thoughts to produce the
// inclusive `outputTokens` the contract expects. Only compute the total
// when the visible component is reported — otherwise we'd fabricate an
// inclusive number from a partial breakdown.
const outputTokens =
usage.candidatesTokenCount !== undefined ? usage.candidatesTokenCount + (usage.thoughtsTokenCount ?? 0) : undefined
return new Usage({
inputTokens: usage.promptTokenCount,
outputTokens,
nonCachedInputTokens: nonCached,
cacheReadInputTokens: cached,
reasoningTokens: usage.thoughtsTokenCount,
totalTokens: ProviderShared.totalTokens(usage.promptTokenCount, outputTokens, usage.totalTokenCount),
providerMetadata: { google: usage },
})
}
const mapFinishReason = (finishReason: string | undefined, hasToolCalls: boolean): FinishReason => {
if (finishReason === undefined) return hasToolCalls ? "tool-calls" : "unknown"
if (finishReason === "STOP") return hasToolCalls ? "tool-calls" : "stop"
if (finishReason === "MAX_TOKENS") return "length"
if (
finishReason === "IMAGE_SAFETY" ||
finishReason === "RECITATION" ||
finishReason === "SAFETY" ||
finishReason === "BLOCKLIST" ||
finishReason === "PROHIBITED_CONTENT" ||
finishReason === "SPII" ||
finishReason === "MODEL_ARMOR" ||
finishReason === "IMAGE_PROHIBITED_CONTENT" ||
finishReason === "IMAGE_RECITATION" ||
finishReason === "LANGUAGE"
)
return "content-filter"
if (
finishReason === "MALFORMED_FUNCTION_CALL" ||
finishReason === "UNEXPECTED_TOOL_CALL" ||
finishReason === "NO_IMAGE" ||
finishReason === "TOO_MANY_TOOL_CALLS" ||
finishReason === "MISSING_THOUGHT_SIGNATURE" ||
finishReason === "MALFORMED_RESPONSE"
)
return "error"
return "unknown"
}
const finish = (state: ParserState): ReadonlyArray<LLMEvent> =>
state.finishReason || state.usage
? (() => {
const events: LLMEvent[] = []
const lifecycle = state.reasoningSignature
? Lifecycle.reasoningEnd(
state.lifecycle,
events,
"reasoning-0",
googleMetadata({ thoughtSignature: state.reasoningSignature }),
)
: state.lifecycle
Lifecycle.finish(lifecycle, events, {
reason: {
normalized: mapFinishReason(state.finishReason, state.hasToolCalls),
raw: state.finishReason,
},
usage: state.usage,
})
return events
})()
: []
const step = (state: ParserState, event: GeminiEvent) => {
const nextState = {
...state,
usage: event.usageMetadata ? (mapUsage(event.usageMetadata) ?? state.usage) : state.usage,
}
const candidate = event.candidates?.[0]
if (!candidate?.content)
return Effect.succeed([
{ ...nextState, finishReason: candidate?.finishReason ?? nextState.finishReason },
[],
] as const)
const events: LLMEvent[] = []
let hasToolCalls = nextState.hasToolCalls
let lifecycle = nextState.lifecycle
let nextToolCallId = nextState.nextToolCallId
let reasoningSignature = nextState.reasoningSignature
for (const part of candidate.content.parts) {
if ("thoughtSignature" in part && part.thoughtSignature && "thought" in part && part.thought)
reasoningSignature = part.thoughtSignature
if ("text" in part && part.text.length > 0) {
if (part.thought) {
lifecycle = Lifecycle.reasoningDelta(
lifecycle,
events,
"reasoning-0",
part.text,
part.thoughtSignature ? googleMetadata({ thoughtSignature: part.thoughtSignature }) : undefined,
)
continue
}
lifecycle = Lifecycle.reasoningEnd(
lifecycle,
events,
"reasoning-0",
reasoningSignature ? googleMetadata({ thoughtSignature: reasoningSignature }) : undefined,
)
lifecycle = Lifecycle.textDelta(lifecycle, events, "text-0", part.text)
continue
}
if ("functionCall" in part) {
const input = part.functionCall.args
const id = `tool_${nextToolCallId++}`
const metadata = {
...(part.functionCall.id === undefined ? {} : { functionCallId: part.functionCall.id }),
...(part.thoughtSignature === undefined ? {} : { thoughtSignature: part.thoughtSignature }),
}
lifecycle = Lifecycle.reasoningEnd(
lifecycle,
events,
"reasoning-0",
reasoningSignature ? googleMetadata({ thoughtSignature: reasoningSignature }) : undefined,
)
lifecycle = Lifecycle.stepStart(lifecycle, events)
events.push(
LLMEvent.toolCall({
id,
name: part.functionCall.name,
input,
providerMetadata: Object.keys(metadata).length > 0 ? googleMetadata(metadata) : undefined,
}),
)
hasToolCalls = true
}
}
return Effect.succeed([
{
...nextState,
hasToolCalls,
lifecycle,
nextToolCallId,
reasoningSignature,
finishReason: candidate.finishReason ?? nextState.finishReason,
},
events,
] as const)
}
// =============================================================================
// Protocol And Gemini Route
// =============================================================================
/**
* The Gemini protocol — request body construction, body schema, and the
* streaming-event state machine. Used by Google AI Studio Gemini and (once
* registered) Vertex Gemini.
*/
export const protocol = Protocol.make({
id: ADAPTER,
body: {
schema: GeminiBody,
from: fromRequest,
},
stream: {
event: Protocol.jsonEvent(GeminiEvent),
initial: () => ({ hasToolCalls: false, nextToolCallId: 0, lifecycle: Lifecycle.initial() }),
step,
onHalt: finish,
},
})
export const route = Route.make({
id: ADAPTER,
provider: "google",
providerMetadataKey: "google",
protocol,
// Gemini's path embeds the model id and pins SSE framing at the URL level.
endpoint: Endpoint.path(({ request }) => `/models/${request.model.id}:streamGenerateContent?alt=sse`, {
baseURL: DEFAULT_BASE_URL,
}),
auth: Auth.none,
framing: Framing.sse,
})
export * as Gemini from "./gemini"
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import { Effect, Encoding, Schema } from "effect"
import { Headers, HttpClientRequest } from "effect/unstable/http"
import {
GeneratedImage,
ImageModel,
ImageResponse,
type ImageInput,
type ImageRequestFor,
type ImageRoute,
} from "../image"
import { Auth, type Definition as AuthDefinition } from "../route/auth"
import {
InvalidProviderOutputReason,
AIError,
Usage,
mergeHttpOptions,
mergeJsonRecords,
type HttpOptions,
type ProviderMetadata,
} from "../schema"
import { ProviderShared } from "./shared"
import { ImageInputs } from "./utils/image-input"
const ADAPTER = "google-images"
export const DEFAULT_BASE_URL = "https://generativelanguage.googleapis.com/v1beta"
export type GoogleImageString<Known extends string> = Known | (string & {})
export type GoogleImageOptions = {
readonly aspectRatio?: GoogleImageString<
"1:1" | "2:3" | "3:2" | "3:4" | "4:3" | "4:5" | "5:4" | "9:16" | "16:9" | "21:9"
>
readonly imageSize?: GoogleImageString<"1K" | "2K" | "4K">
readonly seed?: number
readonly thinkingLevel?: GoogleImageString<"MINIMAL" | "LOW" | "MEDIUM" | "HIGH">
readonly includeThoughts?: boolean
} & Record<string, unknown>
export type GoogleImageBody = Record<string, unknown> & {
readonly contents: ReadonlyArray<{
readonly role: "user"
readonly parts: ReadonlyArray<Record<string, unknown>>
}>
readonly generationConfig: Record<string, unknown>
}
const GoogleUsage = Schema.StructWithRest(
Schema.Struct({
cachedContentTokenCount: Schema.optional(Schema.Number),
thoughtsTokenCount: Schema.optional(Schema.Number),
promptTokenCount: Schema.optional(Schema.Number),
candidatesTokenCount: Schema.optional(Schema.Number),
totalTokenCount: Schema.optional(Schema.Number),
promptTokensDetails: Schema.optional(Schema.Unknown),
candidatesTokensDetails: Schema.optional(Schema.Unknown),
}),
[Schema.Record(Schema.String, Schema.Unknown)],
)
const GoogleImageResponse = Schema.Struct({
candidates: Schema.optional(
Schema.Array(
Schema.Struct({
index: Schema.optional(Schema.Number),
content: Schema.optional(
Schema.Struct({
parts: Schema.Array(
Schema.Struct({
text: Schema.optional(Schema.String),
thought: Schema.optional(Schema.Boolean),
thoughtSignature: Schema.optional(Schema.String),
inlineData: Schema.optional(
Schema.Struct({
mimeType: Schema.String,
data: Schema.String,
}),
),
}),
),
}),
),
finishReason: Schema.optional(Schema.String),
finishMessage: Schema.optional(Schema.String),
safetyRatings: Schema.optional(Schema.Unknown),
citationMetadata: Schema.optional(Schema.Unknown),
groundingMetadata: Schema.optional(Schema.Unknown),
}),
),
),
usageMetadata: Schema.optional(GoogleUsage),
modelVersion: Schema.optional(Schema.String),
responseId: Schema.optional(Schema.String),
promptFeedback: Schema.optional(Schema.Unknown),
})
export interface ModelInput {
readonly id: string
readonly auth: AuthDefinition
readonly baseURL?: string
readonly headers?: Record<string, string>
readonly http?: HttpOptions
}
const nativeOptions = (options: GoogleImageOptions | undefined) => {
const { aspectRatio, imageSize, seed, thinkingLevel, includeThoughts, ...native } = options ?? {}
const image = {
aspectRatio,
imageSize,
}
const thinkingConfig = {
thinkingLevel,
includeThoughts,
}
return (
mergeJsonRecords(
{
responseModalities: ["IMAGE"],
imageConfig: Object.values(image).some((value) => value !== undefined) ? image : undefined,
seed,
thinkingConfig: Object.values(thinkingConfig).some((value) => value !== undefined) ? thinkingConfig : undefined,
},
native,
) ?? { responseModalities: ["IMAGE"] }
)
}
const invalidOutput = (message: string, providerMetadata?: ProviderMetadata) =>
new AIError({
module: ADAPTER,
method: "generate",
reason: new InvalidProviderOutputReason({ message, route: ADAPTER, providerMetadata }),
})
const applyQuery = (url: string, query: Record<string, string> | undefined) => {
if (!query) return url
const next = new URL(url)
Object.entries(query).forEach(([key, value]) => next.searchParams.set(key, value))
return next.toString()
}
export const model = (input: ModelInput) => {
const route: ImageRoute<GoogleImageOptions> = {
id: ADAPTER,
generate: Effect.fn("GoogleImages.generate")(function* (request: ImageRequestFor<GoogleImageOptions>, execute) {
const imageParts = yield* Effect.forEach(request.images ?? [], googleImagePart)
const http = mergeHttpOptions(request.model.http, request.http)
const requestBody = mergeJsonRecords(
{
contents: [{ role: "user", parts: [{ text: request.prompt }, ...imageParts] }],
generationConfig: nativeOptions(request.options),
},
http?.body,
) as GoogleImageBody
const text = ProviderShared.encodeJson(requestBody)
const url = applyQuery(
`${(input.baseURL ?? DEFAULT_BASE_URL).replace(/\/$/, "")}/models/${request.model.id}:generateContent`,
http?.query,
)
const headers = yield* Auth.toEffect(input.auth)({
request,
method: "POST",
url,
body: text,
headers: Headers.fromInput({ ...input.headers, ...http?.headers }),
})
const response = yield* execute(
HttpClientRequest.post(url).pipe(
HttpClientRequest.setHeaders(headers),
HttpClientRequest.bodyText(text, "application/json"),
),
)
const payload = yield* response.json.pipe(
Effect.mapError(() => invalidOutput("Failed to read the Google Images response")),
)
const decoded = yield* Schema.decodeUnknownEffect(GoogleImageResponse)(payload).pipe(
Effect.mapError(() => invalidOutput("Google Images returned an invalid response")),
)
const candidates = decoded.candidates ?? []
const candidateMetadata = candidates.map((candidate, candidateIndex) => ({
index: candidate.index ?? candidateIndex,
finishReason: candidate.finishReason,
finishMessage: candidate.finishMessage,
safetyRatings: candidate.safetyRatings,
citationMetadata: candidate.citationMetadata,
groundingMetadata: candidate.groundingMetadata,
parts: (candidate.content?.parts ?? []).map((part) =>
part.inlineData === undefined
? {
type: "text",
text: part.text,
thought: part.thought,
thoughtSignature: part.thoughtSignature,
}
: {
type: "inlineData",
mediaType: part.inlineData.mimeType,
thought: part.thought,
thoughtSignature: part.thoughtSignature,
},
),
}))
const encoded = candidates.flatMap((candidate, candidateIndex) =>
(candidate.content?.parts ?? []).flatMap((part, partIndex) =>
part.inlineData === undefined || part.thought === true
? []
: [{ candidate, candidateIndex, partIndex, inlineData: part.inlineData }],
),
)
const images = yield* Effect.forEach(encoded, (item) =>
Effect.fromResult(Encoding.decodeBase64(item.inlineData.data)).pipe(
Effect.mapError(() =>
invalidOutput(
`Google Images candidate ${item.candidateIndex} part ${item.partIndex} contains invalid base64 data`,
),
),
Effect.map(
(data) =>
new GeneratedImage({
mediaType: item.inlineData.mimeType,
data,
providerMetadata: {
google: {
candidateIndex: item.candidate.index ?? item.candidateIndex,
partIndex: item.partIndex,
finishReason: item.candidate.finishReason,
safetyRatings: item.candidate.safetyRatings,
citationMetadata: item.candidate.citationMetadata,
groundingMetadata: item.candidate.groundingMetadata,
thoughtSignature: item.candidate.content?.parts[item.partIndex]?.thoughtSignature,
},
},
}),
),
),
)
if (images.length === 0) {
const finishReasons = candidates.flatMap((candidate) =>
candidate.finishReason === undefined ? [] : [candidate.finishReason],
)
return yield* invalidOutput(
`Google Images returned no final images${
finishReasons.length === 0 ? "" : ` (finish reasons: ${finishReasons.join(", ")})`
}; inspect reason.providerMetadata.google for prompt feedback and candidate details`,
{
google: {
promptFeedback: decoded.promptFeedback,
candidates: candidateMetadata,
},
},
)
}
const usage = decoded.usageMetadata
const outputTokens =
usage?.candidatesTokenCount === undefined
? undefined
: usage.candidatesTokenCount + (usage.thoughtsTokenCount ?? 0)
return new ImageResponse({
images,
usage:
usage === undefined
? undefined
: new Usage({
inputTokens: usage.promptTokenCount,
outputTokens,
nonCachedInputTokens: ProviderShared.subtractTokens(
usage.promptTokenCount,
usage.cachedContentTokenCount,
),
cacheReadInputTokens: usage.cachedContentTokenCount,
reasoningTokens: usage.thoughtsTokenCount,
totalTokens: ProviderShared.totalTokens(usage.promptTokenCount, outputTokens, usage.totalTokenCount),
providerMetadata: { google: usage },
}),
providerMetadata: {
google: {
modelVersion: decoded.modelVersion,
responseId: decoded.responseId,
promptFeedback: decoded.promptFeedback,
candidates: candidateMetadata,
},
},
})
}),
}
return ImageModel.make<GoogleImageOptions>({ id: input.id, provider: "google", route, http: input.http })
}
const googleImagePart = (image: ImageInput): Effect.Effect<Record<string, unknown>, AIError> => {
if (image.type === "bytes")
return Effect.succeed({ inlineData: { mimeType: image.mediaType, data: Encoding.encodeBase64(image.data) } })
if (image.type === "file-uri") return Effect.succeed({ fileData: { mimeType: image.mediaType, fileUri: image.uri } })
if (image.type === "url")
return ImageInputs.decodeDataUrl(image.url, ADAPTER).pipe(
Effect.flatMap((decoded) => {
if (decoded === undefined)
return Effect.fail(
ImageInputs.invalid(
ADAPTER,
"Google generateContent does not fetch public image URLs; use bytes, a data URL, or a Gemini file URI",
),
)
return Effect.succeed({
inlineData: { mimeType: decoded.mediaType, data: Encoding.encodeBase64(decoded.data) },
})
}),
)
return Effect.fail(
ImageInputs.invalid(ADAPTER, "Google generateContent requires Gemini file URIs rather than provider file IDs"),
)
}
export const GoogleImages = {
model,
} as const
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export * as AnthropicMessages from "./anthropic-messages"
export * as BedrockConverse from "./bedrock-converse"
export * as Gemini from "./gemini"
export * as OpenAIChat from "./openai-chat"
export * as OpenAIImages from "./openai-images"
export * as OpenAICompatibleChat from "./openai-compatible-chat"
export * as OpenAICompatibleResponses from "./openai-compatible-responses"
export * as OpenAIResponses from "./openai-responses"
export * as OpenResponses from "./open-responses"
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import { Effect, Schema } from "effect"
import { Tool } from "@opencode-ai/schema/tool"
import { Route } from "../route/client"
import { Auth } from "../route/auth"
import { Endpoint } from "../route/endpoint"
import { HttpTransport } from "../route/transport"
import { Protocol } from "../route/protocol"
import {
AIError,
LLMEvent,
Usage,
type FinishReason,
type FinishReasonDetails,
type CacheHint,
type JsonSchema,
type LLMRequest,
type MediaPart,
type ReasoningPart,
type TextPart,
type ToolCallPart,
type ToolDefinition,
} from "../schema"
import { classifyProviderFailure } from "../provider-error"
import { isRecord, JsonObject, optionalArray, optionalNull, ProviderShared } from "./shared"
import { OpenAIOptions } from "./utils/openai-options"
import { Lifecycle } from "./utils/lifecycle"
import { ToolSchemaProjection } from "./utils/tool-schema"
import { ToolStream } from "./utils/tool-stream"
const ADAPTER = "openai-chat"
const IMAGE_MIMES = new Set<string>(ProviderShared.IMAGE_MIMES)
const RESERVED_REASONING_FIELDS = new Set(["role", "content", "tool_calls"])
export const DEFAULT_BASE_URL = "https://api.openai.com/v1"
export const PATH = "/chat/completions"
// =============================================================================
// Request Body Schema
// =============================================================================
// The body schema is the provider-native JSON body. `fromRequest` below builds
// this shape from the common `LLMRequest`, then `Route.make` validates and
// JSON-encodes it before transport.
const OpenAIChatCacheControl = Schema.Struct({
type: Schema.Literal("ephemeral"),
ttl: Schema.optional(Schema.String),
})
const OpenAIChatFunction = Schema.Struct({
name: Schema.String,
description: Schema.String,
parameters: JsonObject,
})
const OpenAIChatTool = Schema.Struct({
type: Schema.tag("function"),
function: OpenAIChatFunction,
cache_control: Schema.optional(OpenAIChatCacheControl),
})
type OpenAIChatTool = Schema.Schema.Type<typeof OpenAIChatTool>
const OpenAIChatAssistantToolCall = Schema.Struct({
id: Schema.String,
type: Schema.tag("function"),
function: Schema.Struct({
name: Schema.String,
arguments: Schema.String,
}),
})
type OpenAIChatAssistantToolCall = Schema.Schema.Type<typeof OpenAIChatAssistantToolCall>
// Intentionally omit Gemini's provider-specific `extra_content.google.thought_signature`
// extension until direct Google OpenAI-compatible routing is supported here:
// https://github.com/vercel/ai/issues/11590
// https://github.com/vercel/ai/pull/11745
// https://ai.google.dev/gemini-api/docs/thought-signatures#openai
const OpenAIChatUserContent = Schema.Union([
Schema.Struct({
type: Schema.Literal("text"),
text: Schema.String,
cache_control: Schema.optional(OpenAIChatCacheControl),
}),
Schema.Struct({
type: Schema.Literal("image_url"),
image_url: Schema.Struct({ url: Schema.String }),
}),
])
const OpenAIChatMessage = Schema.Union([
Schema.Struct({
role: Schema.Literal("system"),
content: Schema.Union([Schema.String, Schema.Array(OpenAIChatUserContent)]),
}),
Schema.Struct({
role: Schema.Literal("user"),
content: Schema.Union([Schema.String, Schema.Array(OpenAIChatUserContent)]),
}),
Schema.StructWithRest(
Schema.Struct({
role: Schema.Literal("assistant"),
content: Schema.NullOr(Schema.String),
tool_calls: optionalArray(OpenAIChatAssistantToolCall),
reasoning_content: Schema.optional(Schema.String),
reasoning: Schema.optional(Schema.String),
reasoning_text: Schema.optional(Schema.String),
reasoning_details: Schema.optional(Schema.Unknown),
cache_control: Schema.optional(OpenAIChatCacheControl),
}),
[Schema.Record(Schema.String, Schema.Unknown)],
),
Schema.Struct({
role: Schema.Literal("tool"),
tool_call_id: Schema.String,
content: Schema.String,
cache_control: Schema.optional(OpenAIChatCacheControl),
}),
]).pipe(Schema.toTaggedUnion("role"))
type OpenAIChatMessage = Schema.Schema.Type<typeof OpenAIChatMessage>
const OpenAIChatToolChoice = Schema.Union([
Schema.Literals(["auto", "none", "required"]),
Schema.Struct({
type: Schema.tag("function"),
function: Schema.Struct({ name: Schema.String }),
}),
])
export const bodyFields = {
model: Schema.String,
messages: Schema.Array(OpenAIChatMessage),
tools: optionalArray(OpenAIChatTool),
tool_choice: Schema.optional(OpenAIChatToolChoice),
stream: Schema.Literal(true),
stream_options: Schema.optional(Schema.Struct({ include_usage: Schema.Boolean })),
store: Schema.optional(Schema.Boolean),
reasoning_effort: Schema.optional(OpenAIOptions.OpenAIReasoningEffort),
max_completion_tokens: Schema.optional(Schema.Number),
max_tokens: Schema.optional(Schema.Number),
temperature: Schema.optional(Schema.Number),
top_p: Schema.optional(Schema.Number),
frequency_penalty: Schema.optional(Schema.Number),
presence_penalty: Schema.optional(Schema.Number),
seed: Schema.optional(Schema.Number),
stop: optionalArray(Schema.String),
}
const OpenAIChatBody = Schema.Struct(bodyFields)
export type OpenAIChatBody = Schema.Schema.Type<typeof OpenAIChatBody>
// =============================================================================
// Streaming Event Schema
// =============================================================================
// The event schema is one decoded SSE `data:` payload. `Framing.sse` splits the
// byte stream into strings, then `Protocol.jsonEvent` decodes each string into
// this provider-native event shape.
const OpenAIChatUsage = Schema.StructWithRest(
Schema.Struct({
prompt_tokens: optionalNull(Schema.Number),
completion_tokens: optionalNull(Schema.Number),
total_tokens: optionalNull(Schema.Number),
prompt_tokens_details: optionalNull(
Schema.StructWithRest(
Schema.Struct({
cached_tokens: optionalNull(Schema.Number),
cache_write_tokens: optionalNull(Schema.Number),
}),
[Schema.Record(Schema.String, Schema.Unknown)],
),
),
completion_tokens_details: optionalNull(
Schema.StructWithRest(
Schema.Struct({
reasoning_tokens: optionalNull(Schema.Number),
accepted_prediction_tokens: optionalNull(Schema.Number),
rejected_prediction_tokens: optionalNull(Schema.Number),
}),
[Schema.Record(Schema.String, Schema.Unknown)],
),
),
}),
[Schema.Record(Schema.String, Schema.Unknown)],
)
const OpenAIChatToolCallDeltaFunction = Schema.Struct({
name: optionalNull(Schema.String),
arguments: optionalNull(Schema.String),
})
const OpenAIChatToolCallDelta = Schema.Struct({
index: optionalNull(Schema.Number),
id: optionalNull(Schema.String),
function: optionalNull(OpenAIChatToolCallDeltaFunction),
})
type OpenAIChatToolCallDelta = Schema.Schema.Type<typeof OpenAIChatToolCallDelta>
const OpenAIChatDelta = Schema.StructWithRest(
Schema.Struct({
content: optionalNull(Schema.String),
reasoning_content: optionalNull(Schema.String),
reasoning: optionalNull(Schema.String),
reasoning_text: optionalNull(Schema.String),
reasoning_details: optionalNull(Schema.Unknown),
tool_calls: optionalNull(Schema.Array(OpenAIChatToolCallDelta)),
}),
[Schema.Record(Schema.String, Schema.Unknown)],
)
const OpenAIChatChoice = Schema.Struct({
delta: optionalNull(OpenAIChatDelta),
finish_reason: optionalNull(Schema.String),
native_finish_reason: optionalNull(Schema.String),
})
const OpenAIChatError = Schema.Struct({
code: optionalNull(Schema.Union([Schema.String, Schema.Number])),
message: Schema.String,
})
export const OpenAIChatEvent = Schema.Struct({
choices: optionalNull(Schema.Array(OpenAIChatChoice)),
usage: optionalNull(OpenAIChatUsage),
error: optionalNull(OpenAIChatError),
})
export type OpenAIChatEvent = Schema.Schema.Type<typeof OpenAIChatEvent>
type OpenAIChatRequestMessage = LLMRequest["messages"][number]
interface PendingToolDelta {
readonly id?: string
readonly name?: string
readonly input: string
}
export interface ParserState {
readonly tools: ToolStream.State<number>
readonly pendingTools: Partial<Record<number, PendingToolDelta>>
readonly toolCallEvents: ReadonlyArray<LLMEvent>
readonly usage?: Usage
readonly finishReason?: FinishReasonDetails
readonly lifecycle: Lifecycle.State
readonly reasoningField?: string
readonly reasoningDetails: Array<unknown>
readonly reasoningDetailsObserved: boolean
readonly reasoningEmitted: boolean
readonly latestToolIndex?: number
readonly nextToolIndex: number
}
// =============================================================================
// Request Lowering
// =============================================================================
// Lowering is the only place that knows how common LLM messages map onto the
// OpenAI Chat wire format. Keep provider quirks here instead of leaking native
// fields into `LLMRequest`.
interface LoweringOptions {
readonly cacheControl?: (
cache: CacheHint | undefined,
) => Schema.Schema.Type<typeof OpenAIChatCacheControl> | undefined
}
const lowerTool = (tool: ToolDefinition, inputSchema: JsonSchema, options: LoweringOptions): OpenAIChatTool => ({
type: "function",
function: {
name: tool.name,
description: tool.description,
parameters: ToolSchemaProjection.openAI(inputSchema),
},
cache_control: options.cacheControl?.(tool.cache),
})
const lowerToolChoice = (toolChoice: NonNullable<LLMRequest["toolChoice"]>) =>
ProviderShared.matchToolChoice("OpenAI Chat", toolChoice, {
auto: () => "auto" as const,
none: () => "none" as const,
required: () => "required" as const,
tool: (name) => ({ type: "function" as const, function: { name } }),
})
const lowerToolCall = (part: ToolCallPart): OpenAIChatAssistantToolCall => ({
id: part.id,
type: "function",
function: {
name: part.name,
arguments: ProviderShared.encodeJson(part.input),
},
})
const lowerMedia = Effect.fn("OpenAIChat.lowerMedia")(function* (part: MediaPart) {
const media = yield* ProviderShared.validateMedia("OpenAI Chat", part, IMAGE_MIMES)
return { type: "image_url" as const, image_url: { url: media.dataUrl } }
})
const openAICompatibleReasoningContent = (native: unknown) =>
isRecord(native) && typeof native.reasoning_content === "string" ? native.reasoning_content : undefined
const reasoningField = (part: ReasoningPart) => {
const field = part.providerMetadata?.openai?.reasoningField
return typeof field === "string" ? field : undefined
}
const reasoningDetails = (parts: ReadonlyArray<ReasoningPart>, native: unknown) => {
const observed = parts.flatMap((part) => {
const details = part.providerMetadata?.openai?.reasoningDetails
return Array.isArray(details) ? details : []
})
if (parts.some((part) => Array.isArray(part.providerMetadata?.openai?.reasoningDetails))) return observed
if (isRecord(native) && Array.isArray(native.reasoning_details)) return native.reasoning_details
}
const lowerUserMessage = Effect.fn("OpenAIChat.lowerUserMessage")(function* (
message: OpenAIChatRequestMessage,
options: LoweringOptions,
) {
const content: Array<Schema.Schema.Type<typeof OpenAIChatUserContent>> = []
for (const part of message.content) {
if (part.type === "text") {
content.push({ type: "text", text: part.text, cache_control: options.cacheControl?.(part.cache) })
continue
}
if (part.type === "media") {
content.push(yield* lowerMedia(part))
continue
}
return yield* ProviderShared.unsupportedContent("OpenAI Chat", "user", ["text", "media"])
}
if (content.every((part) => part.type === "text" && part.cache_control === undefined))
return {
role: "user" as const,
content: content.map((part) => (part.type === "text" ? part.text : "")).join(""),
}
return { role: "user" as const, content }
})
const lowerAssistantMessage = Effect.fn("OpenAIChat.lowerAssistantMessage")(function* (
message: OpenAIChatRequestMessage,
configuredField?: string,
options: LoweringOptions = {},
) {
const content: TextPart[] = []
const reasoning: ReasoningPart[] = []
const toolCalls: OpenAIChatAssistantToolCall[] = []
for (const part of message.content) {
if (!ProviderShared.supportsContent(part, ["text", "reasoning", "tool-call"]))
return yield* ProviderShared.unsupportedContent("OpenAI Chat", "assistant", ["text", "reasoning", "tool-call"])
if (part.type === "text") {
content.push(part)
continue
}
if (part.type === "reasoning") {
reasoning.push(part)
continue
}
if (part.type === "tool-call") {
toolCalls.push(lowerToolCall(part))
continue
}
}
const text = reasoning.map((part) => part.text).join("")
const details = reasoningDetails(reasoning, message.native?.openaiCompatible)
const observedField = reasoning.map(reasoningField).find((value) => value !== undefined)
const nativeReasoning = openAICompatibleReasoningContent(message.native?.openaiCompatible)
const fullyStructured = reasoning.every((part) => Array.isArray(part.providerMetadata?.openai?.reasoningDetails))
const field = (() => {
if (configuredField !== undefined) return configuredField
if (reasoning.length === 0) return undefined
if (observedField !== undefined) return observedField
if (nativeReasoning !== undefined) return "reasoning_content"
if (!fullyStructured) return "reasoning_content"
})()
const reasoningText = (() => {
if (configuredField !== undefined) return reasoning.length === 0 ? (nativeReasoning ?? "") : text
if (reasoning.length === 0) return nativeReasoning
return text
})()
const cached = message.content.findLast((part) => "cache" in part && part.cache !== undefined)
const result = {
role: "assistant" as const,
content: content.length === 0 ? null : ProviderShared.joinText(content),
tool_calls: toolCalls.length === 0 ? undefined : toolCalls,
reasoning_details: details,
cache_control: options.cacheControl?.(cached && "cache" in cached ? cached.cache : undefined),
}
if (field === undefined || reasoningText === undefined) return result
return { ...result, [field]: reasoningText }
})
const lowerToolMessages = Effect.fn("OpenAIChat.lowerToolMessages")(function* (
message: OpenAIChatRequestMessage,
options: LoweringOptions,
) {
const messages: OpenAIChatMessage[] = []
const images: Array<Schema.Schema.Type<typeof OpenAIChatUserContent>> = []
for (const part of message.content) {
if (!ProviderShared.supportsContent(part, ["tool-result"]))
return yield* ProviderShared.unsupportedContent("OpenAI Chat", "tool", ["tool-result"])
if (part.result.type !== "content") {
messages.push({
role: "tool",
tool_call_id: part.id,
content: ProviderShared.toolResultText(part),
cache_control: options.cacheControl?.(part.cache),
})
continue
}
const content: ReadonlyArray<Tool.Content> = part.result.value
const text = content.filter((item) => item.type === "text").map((item) => item.text)
messages.push({
role: "tool",
tool_call_id: part.id,
content: text.join("\n"),
cache_control: options.cacheControl?.(part.cache),
})
const files = content.filter((item) => item.type === "file")
images.push(
...(yield* Effect.forEach(files, (item) =>
lowerMedia({ type: "media", mediaType: item.mime, data: item.uri, filename: item.name }),
)),
)
}
return { messages, images }
})
const lowerMessage = Effect.fn("OpenAIChat.lowerMessage")(function* (
message: OpenAIChatRequestMessage,
reasoningField?: string,
options: LoweringOptions = {},
) {
if (message.role === "user") return [yield* lowerUserMessage(message, options)]
if (message.role === "assistant") return [yield* lowerAssistantMessage(message, reasoningField, options)]
return (yield* lowerToolMessages(message, options)).messages
})
const lowerMessages = Effect.fn("OpenAIChat.lowerMessages")(function* (request: LLMRequest, options: LoweringOptions) {
const system: OpenAIChatMessage[] =
request.system.length === 0
? []
: request.system.some((part) => part.cache !== undefined) && options.cacheControl !== undefined
? [
{
role: "system",
content: request.system.map((part) => ({
type: "text",
text: part.text,
cache_control: options.cacheControl?.(part.cache),
})),
},
]
: [{ role: "system", content: ProviderShared.joinText(request.system) }]
const messages = [...system]
const pendingImages: Array<Schema.Schema.Type<typeof OpenAIChatUserContent>> = []
const flushImages = () => {
if (pendingImages.length === 0) return
messages.push({ role: "user", content: pendingImages.splice(0) })
}
for (const message of request.messages) {
if (message.role === "system") {
const part = yield* ProviderShared.wrappedSystemUpdate("OpenAI Chat", message)
if (pendingImages.length > 0) {
messages.push({
role: "user",
content: [
...pendingImages.splice(0),
{ type: "text", text: part.text, cache_control: options.cacheControl?.(part.cache) },
],
})
continue
}
const previous = messages.at(-1)
if (previous?.role === "user" && typeof previous.content === "string")
messages[messages.length - 1] = options.cacheControl?.(part.cache)
? {
role: "user",
content: [
{ type: "text", text: previous.content },
{ type: "text", text: part.text, cache_control: options.cacheControl(part.cache) },
],
}
: { role: "user", content: `${previous.content}\n${part.text}` }
else if (previous?.role === "user" && Array.isArray(previous.content))
messages[messages.length - 1] = {
role: "user",
content: [
...previous.content,
{ type: "text", text: part.text, cache_control: options.cacheControl?.(part.cache) },
],
}
else
messages.push(
options.cacheControl?.(part.cache)
? {
role: "user",
content: [{ type: "text", text: part.text, cache_control: options.cacheControl(part.cache) }],
}
: { role: "user", content: part.text },
)
continue
}
if (message.role === "tool") {
const lowered = yield* lowerToolMessages(message, options)
messages.push(...lowered.messages)
pendingImages.push(...lowered.images)
continue
}
flushImages()
messages.push(...(yield* lowerMessage(message, request.model.compatibility?.reasoningField, options)))
}
flushImages()
return messages
})
const lowerOptions = (request: LLMRequest) => {
const options = OpenAIOptions.resolve(request)
return {
...(options.store !== undefined ? { store: options.store } : {}),
...(options.reasoningEffort ? { reasoning_effort: options.reasoningEffort } : {}),
}
}
export const fromRequest = Effect.fn("OpenAIChat.fromRequest")(function* (
request: LLMRequest,
options: LoweringOptions = {},
) {
// `fromRequest` returns the provider body only. Endpoint, auth, framing,
// validation, and HTTP execution are composed by `Route.make`.
const reasoningField = request.model.compatibility?.reasoningField
if (reasoningField && RESERVED_REASONING_FIELDS.has(reasoningField))
return yield* ProviderShared.invalidRequest(
`OpenAI Chat reasoning field conflicts with reserved field ${reasoningField}`,
)
const generation = request.generation
const toolSchemaCompatibility = request.model.compatibility?.toolSchema
const maxTokensField = request.model.compatibility?.maxTokensField ?? "max_tokens"
return {
model: request.model.id,
messages: yield* lowerMessages(request, options),
tools:
request.tools.length === 0
? undefined
: request.tools.map((tool) =>
lowerTool(
tool,
ToolSchemaProjection.modelCompatibility(tool.inputSchema, toolSchemaCompatibility),
options,
),
),
tool_choice: request.toolChoice ? yield* lowerToolChoice(request.toolChoice) : undefined,
stream: true as const,
stream_options: { include_usage: true },
...(maxTokensField === "max_completion_tokens"
? { max_completion_tokens: generation?.maxTokens }
: { max_tokens: generation?.maxTokens }),
temperature: generation?.temperature,
top_p: generation?.topP,
frequency_penalty: generation?.frequencyPenalty,
presence_penalty: generation?.presencePenalty,
seed: generation?.seed,
stop: generation?.stop,
...lowerOptions(request),
}
})
// =============================================================================
// Stream Parsing
// =============================================================================
// Streaming parsers are small state machines: every event returns a new state
// plus the common `LLMEvent`s produced by that event. Tool calls are accumulated
// because OpenAI streams JSON arguments across multiple deltas.
const mapFinishReason = (reason: string | null | undefined): FinishReason => {
if (reason === "stop") return "stop"
if (reason === "length") return "length"
if (reason === "content_filter") return "content-filter"
if (reason === "function_call" || reason === "tool_calls") return "tool-calls"
if (reason === "error") return "error"
return "unknown"
}
// OpenAI Chat reports `prompt_tokens` (inclusive total) with a
// cached-read and cache-write subsets, and `completion_tokens` (inclusive
// total) with a `reasoning_tokens` subset. We pass the inclusive totals
// through and derive the non-cached breakdown so the `AI.Usage` contract is
// satisfied on both sides.
const mapUsage = (usage: OpenAIChatEvent["usage"]): Usage | undefined => {
if (!usage) return undefined
const input = usage.prompt_tokens ?? undefined
const output = usage.completion_tokens ?? undefined
const cached = usage.prompt_tokens_details?.cached_tokens ?? undefined
const cacheWrite = usage.prompt_tokens_details?.cache_write_tokens ?? undefined
const reasoning = usage.completion_tokens_details?.reasoning_tokens ?? undefined
const nonCached = ProviderShared.subtractTokens(input, ProviderShared.sumTokens(cached, cacheWrite))
return new Usage({
inputTokens: input,
outputTokens: output,
nonCachedInputTokens: nonCached,
cacheReadInputTokens: cached,
cacheWriteInputTokens: cacheWrite,
reasoningTokens: reasoning,
totalTokens: ProviderShared.totalTokens(input, output, usage.total_tokens ?? undefined),
providerMetadata: { openai: usage },
})
}
const toolIndexByID = (
tools: ParserState["tools"],
pendingTools: ParserState["pendingTools"],
id: string | undefined,
) => {
if (!id) return undefined
const entry = Object.entries({ ...pendingTools, ...tools }).find(([, tool]) => tool?.id === id)
return entry ? Number(entry[0]) : undefined
}
const reasoningDelta = (
delta: Schema.Schema.Type<typeof OpenAIChatDelta> | null | undefined,
configuredField?: string,
) => {
if (!delta) return undefined
const fields = new Set([configuredField, "reasoning_content", "reasoning", "reasoning_text"])
for (const field of fields) {
if (field === undefined) continue
const text = delta[field]
if (typeof text === "string" && text.length > 0) return { field, text }
}
return undefined
}
const detailText = (details: ReadonlyArray<unknown>) => {
const text = details.flatMap((detail) => {
if (!isRecord(detail)) return []
if (detail.type === "reasoning.text" && typeof detail.text === "string" && detail.text) return [detail.text]
if (detail.type === "reasoning.summary" && typeof detail.summary === "string" && detail.summary)
return [detail.summary]
return []
})
if (text.length > 0) return text.join("")
}
const appendReasoningDetails = (result: Array<unknown>, details: ReadonlyArray<unknown>) => {
for (const detail of details) {
const previous = result.at(-1)
if (
!isRecord(previous) ||
previous.type !== "reasoning.text" ||
!isRecord(detail) ||
detail.type !== "reasoning.text" ||
conflictingReasoningTextDetails(previous, detail)
) {
result.push(detail)
continue
}
result[result.length - 1] = {
...previous,
...Object.fromEntries(Object.entries(detail).filter((entry) => entry[1] !== undefined)),
text: `${typeof previous.text === "string" ? previous.text : ""}${typeof detail.text === "string" ? detail.text : ""}`,
signature: mergeDetailValue(previous.signature, detail.signature),
format: mergeDetailValue(previous.format, detail.format),
}
}
}
const mergeDetailValue = (previous: unknown, current: unknown) =>
previous || current || (previous !== undefined ? previous : current)
const conflictingReasoningTextDetails = (previous: Record<string, unknown>, current: Record<string, unknown>) =>
conflictingDetailValue(previous.id, current.id) ||
conflictingDetailValue(previous.index, current.index) ||
conflictingDetailValue(previous.format, current.format) ||
(Boolean(previous.signature) && Boolean(current.signature) && previous.signature !== current.signature)
const conflictingDetailValue = (previous: unknown, current: unknown) =>
previous !== undefined && previous !== null && current !== undefined && current !== null && previous !== current
const reasoningMetadata = (field: ParserState["reasoningField"], details?: ReadonlyArray<unknown>) => ({
openai: {
...(field ? { reasoningField: field } : {}),
...(details ? { reasoningDetails: details } : {}),
},
})
const step = (state: ParserState, event: OpenAIChatEvent) =>
Effect.gen(function* () {
if (event.error)
return yield* new AIError({
module: ADAPTER,
method: "stream",
reason: classifyProviderFailure({
message: event.error.message,
code: event.error.code === undefined || event.error.code === null ? undefined : String(event.error.code),
status: typeof event.error.code === "number" ? event.error.code : undefined,
}),
})
const events: LLMEvent[] = []
const usage = mapUsage(event.usage) ?? state.usage
const choice = event.choices?.[0]
const rawFinishReason = choice?.finish_reason
const finishReason =
rawFinishReason !== undefined && rawFinishReason !== null
? { normalized: mapFinishReason(rawFinishReason), raw: choice?.native_finish_reason ?? rawFinishReason }
: state.finishReason
const delta = choice?.delta
const toolDeltas = delta?.tool_calls ?? []
let tools = state.tools
let pendingTools = state.pendingTools
let latestToolIndex = state.latestToolIndex
let nextToolIndex = state.nextToolIndex
let lifecycle = state.lifecycle
const reasoning = reasoningDelta(delta, state.reasoningField)
const hasLateContent =
Boolean(delta?.content) ||
reasoning !== undefined ||
(Array.isArray(delta?.reasoning_details) && delta.reasoning_details.length > 0) ||
toolDeltas.some(
(tool) => Boolean(tool.id) || Boolean(tool.function?.name) || Boolean(tool.function?.arguments),
)
if (state.finishReason !== undefined) {
if (hasLateContent)
return yield* ProviderShared.eventError(ADAPTER, "OpenAI Chat received content after the finish reason")
return [{ ...state, usage }, events] as const
}
const reasoningField = state.reasoningField ?? (!state.lifecycle.text.has("text-0") ? reasoning?.field : undefined)
const detailDelta = Array.isArray(delta?.reasoning_details) ? delta.reasoning_details : undefined
if (detailDelta !== undefined) appendReasoningDetails(state.reasoningDetails, detailDelta)
const reasoningDetailsObserved = state.reasoningDetailsObserved || detailDelta !== undefined
const deltaMetadata = reasoningMetadata(reasoningField)
const text = detailDelta?.length ? (detailText(detailDelta) ?? reasoning?.text) : reasoning?.text
if (!state.lifecycle.text.has("text-0") && text !== undefined)
lifecycle = Lifecycle.reasoningDelta(lifecycle, events, "reasoning-0", text, deltaMetadata)
else if (
reasoningDetailsObserved &&
!lifecycle.reasoning.has("reasoning-0") &&
(Boolean(delta?.content) || toolDeltas.length > 0)
)
lifecycle = Lifecycle.reasoningStart(lifecycle, events, "reasoning-0", deltaMetadata)
const reasoningEmitted = state.reasoningEmitted || lifecycle.reasoning.has("reasoning-0")
if (delta?.content) {
lifecycle = Lifecycle.reasoningEnd(
lifecycle,
events,
"reasoning-0",
reasoningMetadata(reasoningField, reasoningDetailsObserved ? state.reasoningDetails : undefined),
)
lifecycle = Lifecycle.textDelta(lifecycle, events, "text-0", delta.content)
}
// Compatible providers may omit indexes. Prefer durable identity, then use
// batch position for parallel deltas or the latest call for sparse chunks.
for (const [position, tool] of toolDeltas.entries()) {
const matched = toolIndexByID(tools, pendingTools, tool.id || undefined)
const fallback = toolDeltas.length > 1 ? position : (latestToolIndex ?? position)
const fallbackTool = tools[fallback] ?? pendingTools[fallback]
const index =
tool.index ?? matched ??
(tool.id && fallbackTool?.id && fallbackTool.id !== tool.id ? nextToolIndex : fallback)
const current = tools[index]
const pending = pendingTools[index]
const id = current?.id ?? pending?.id ?? (tool.id || undefined)
const name = current?.name ?? pending?.name ?? (tool.function?.name || undefined)
const text = `${pending?.input ?? ""}${tool.function?.arguments ?? ""}`
latestToolIndex = index
nextToolIndex = Math.max(nextToolIndex, index + 1)
if (!current && (!id || !name)) {
pendingTools = {
...pendingTools,
[index]: { id: id || undefined, name: name || undefined, input: text },
}
continue
}
if (pending) {
pendingTools = { ...pendingTools }
delete pendingTools[index]
}
const result = ToolStream.appendOrStart(
ADAPTER,
tools,
index,
{ id: id || undefined, name: name || undefined, text },
"OpenAI Chat tool call delta is missing id or name",
)
if (ToolStream.isError(result)) return yield* result
tools = result.tools
if (result.events.length) lifecycle = Lifecycle.stepStart(lifecycle, events)
events.push(...result.events)
}
if (finishReason !== undefined && state.finishReason === undefined && Object.keys(pendingTools).length > 0)
return yield* ProviderShared.eventError(ADAPTER, "OpenAI Chat tool call delta is missing id or name")
// Finalize accumulated tool inputs eagerly when finish_reason arrives so
// valid calls and malformed local calls settle independently.
const finished =
finishReason !== undefined && state.finishReason === undefined && Object.keys(tools).length > 0
? yield* ToolStream.finishAll(ADAPTER, tools)
: undefined
return [
{
tools: finished?.tools ?? tools,
pendingTools,
toolCallEvents: finished?.events ?? state.toolCallEvents,
usage,
finishReason,
lifecycle,
reasoningField,
reasoningDetails: state.reasoningDetails,
reasoningDetailsObserved,
reasoningEmitted,
latestToolIndex,
nextToolIndex,
},
events,
] as const
})
const finishEvents = (state: ParserState): ReadonlyArray<LLMEvent> => {
const events: LLMEvent[] = []
const hasToolCalls = state.toolCallEvents.length > 0
const reason = state.finishReason
? {
...state.finishReason,
normalized:
state.finishReason.normalized === "stop" && hasToolCalls ? "tool-calls" : state.finishReason.normalized,
}
: undefined
const metadata = reasoningMetadata(
state.reasoningField,
state.reasoningDetailsObserved ? state.reasoningDetails : undefined,
)
const started =
state.reasoningDetailsObserved && !state.reasoningEmitted
? Lifecycle.reasoningStart(state.lifecycle, events, "reasoning-0", reasoningMetadata(state.reasoningField))
: state.lifecycle
const ended = Lifecycle.reasoningEnd(started, events, "reasoning-0", metadata)
const lifecycle = state.toolCallEvents.length ? Lifecycle.stepStart(ended, events) : ended
events.push(...state.toolCallEvents)
if (reason) Lifecycle.finish(lifecycle, events, { reason, usage: state.usage })
return events
}
// =============================================================================
// Protocol And OpenAI Route
// =============================================================================
/**
* The OpenAI Chat protocol — request body construction, body schema, and the
* streaming-event state machine. Reused by every route that speaks OpenAI Chat
* over HTTP+SSE: native OpenAI, DeepSeek, TogetherAI, Cerebras, Baseten,
* Fireworks, DeepInfra, and (once added) Azure OpenAI Chat.
*/
export const protocol = Protocol.make({
id: ADAPTER,
body: {
schema: OpenAIChatBody,
from: fromRequest,
},
stream: {
event: Protocol.jsonEvent(OpenAIChatEvent),
initial: (request) => ({
tools: ToolStream.empty<number>(),
pendingTools: {},
toolCallEvents: [],
lifecycle: Lifecycle.initial(),
reasoningField: request.model.compatibility?.reasoningField,
reasoningDetails: [],
reasoningDetailsObserved: false,
reasoningEmitted: false,
nextToolIndex: 0,
}),
step,
onHalt: finishEvents,
},
})
export const httpTransport = HttpTransport.sseJson.with<OpenAIChatBody>()
export const route = Route.make({
id: ADAPTER,
provider: "openai",
providerMetadataKey: "openai",
protocol,
endpoint: Endpoint.path(PATH, { baseURL: DEFAULT_BASE_URL }),
auth: Auth.none,
transport: httpTransport,
})
export * as OpenAIChat from "./openai-chat"
@@ -1,11 +1,11 @@
import { Route, type RouteRoutedModelInput } from "../route/client"
import { Route, type RouteRoutedLanguageModelInput } from "../route/client"
import { Endpoint } from "../route/endpoint"
import { Framing } from "../route/framing"
import * as OpenAIChat from "./openai-chat"
const ADAPTER = "openai-compatible-chat"
export type OpenAICompatibleChatModelInput = RouteRoutedModelInput
export type OpenAICompatibleChatLanguageModelInput = RouteRoutedLanguageModelInput
/**
* Route for non-OpenAI providers that expose an OpenAI Chat-compatible
@@ -16,6 +16,7 @@ export type OpenAICompatibleChatModelInput = RouteRoutedModelInput
*/
export const route = Route.make({
id: ADAPTER,
providerMetadataKey: "openai",
protocol: OpenAIChat.protocol,
endpoint: Endpoint.path("/chat/completions"),
framing: Framing.sse,
@@ -0,0 +1,22 @@
import { Route, type RouteRoutedLanguageModelInput } from "../route/client"
import { Endpoint } from "../route/endpoint"
import { OpenResponses } from "./open-responses"
const ADAPTER = "openai-compatible-responses"
export type OpenAICompatibleResponsesLanguageModelInput = RouteRoutedLanguageModelInput
/**
* Deployment adapter for providers that expose an Open Responses-compatible
* `/responses` endpoint. Provider helpers configure identity, endpoint, and
* auth while the semantic protocol remains provider-neutral.
*/
export const route = Route.make({
id: ADAPTER,
providerMetadataKey: "openresponses",
protocol: OpenResponses.protocol,
endpoint: Endpoint.path(OpenResponses.PATH),
transport: OpenResponses.httpTransport,
})
export * as OpenAICompatibleResponses from "./openai-compatible-responses"
+270
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@@ -0,0 +1,270 @@
import { Effect, Encoding, Schema } from "effect"
import { Headers, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
import {
ImageModel,
GeneratedImage,
ImageResponse,
type ImageInput,
type ImageRequestFor,
type ImageRoute,
} from "../image"
import { Auth, type Definition as AuthDefinition } from "../route/auth"
import {
InvalidProviderOutputReason,
AIError,
Usage,
mergeHttpOptions,
mergeJsonRecords,
type HttpOptions,
} from "../schema"
import { ProviderShared } from "./shared"
import { ImageInputs } from "./utils/image-input"
import { OpenAIImage } from "./utils/openai-image"
const ADAPTER = "openai-images"
export const DEFAULT_BASE_URL = "https://api.openai.com/v1"
export const PATH = "/images/generations"
export const EDIT_PATH = "/images/edits"
export type OpenAIImageString<Known extends string> = Known | (string & {})
export type OpenAIImageOptions = {
readonly mask?: ImageInput
readonly n?: number
readonly size?: OpenAIImageString<
"auto" | "256x256" | "512x512" | "1024x1024" | "1536x1024" | "1024x1536" | "1792x1024" | "1024x1792"
>
readonly quality?: OpenAIImageString<"auto" | "low" | "medium" | "high" | "standard" | "hd">
readonly background?: OpenAIImageString<"auto" | "opaque" | "transparent">
readonly moderation?: OpenAIImageString<"auto" | "low">
readonly outputFormat?: OpenAIImageString<"png" | "jpeg" | "webp">
readonly outputCompression?: number
} & Record<string, unknown>
export type OpenAIImageBody = Record<string, unknown> & {
readonly model: string
readonly prompt: string
}
const OpenAIImageResponse = Schema.Struct({
data: Schema.Array(
Schema.Struct({
b64_json: Schema.optional(Schema.String),
url: Schema.optional(Schema.String),
revised_prompt: Schema.optional(Schema.String),
}),
),
output_format: Schema.optional(Schema.String),
usage: Schema.optional(
Schema.Struct({
input_tokens: Schema.optional(Schema.Number),
output_tokens: Schema.optional(Schema.Number),
total_tokens: Schema.optional(Schema.Number),
input_tokens_details: Schema.optional(Schema.Record(Schema.String, Schema.Unknown)),
output_tokens_details: Schema.optional(Schema.Record(Schema.String, Schema.Unknown)),
}),
),
})
export interface ModelInput {
readonly id: string
readonly auth: AuthDefinition
readonly baseURL?: string
readonly headers?: Record<string, string>
readonly http?: HttpOptions
}
const nativeOptions = (options: OpenAIImageOptions | undefined) => {
if (!options) return undefined
const { mask: _, outputFormat, outputCompression, ...native } = options
return {
output_format: outputFormat,
output_compression: outputCompression,
...native,
}
}
const invalidOutput = (message: string) =>
new AIError({
module: ADAPTER,
method: "generate",
reason: new InvalidProviderOutputReason({ message, route: ADAPTER }),
})
const applyQuery = (url: string, query: Record<string, string> | undefined) => {
if (!query) return url
const next = new URL(url)
Object.entries(query).forEach(([key, value]) => next.searchParams.set(key, value))
return next.toString()
}
export const model = (input: ModelInput) => {
const route: ImageRoute<OpenAIImageOptions> = {
id: ADAPTER,
generate: Effect.fn("OpenAIImages.generate")(function* (request: ImageRequestFor<OpenAIImageOptions>, execute) {
const mask = request.options?.mask
if (mask !== undefined && (request.images?.length ?? 0) === 0)
return yield* ImageInputs.invalid(ADAPTER, "An OpenAI image mask requires at least one input image")
const http = mergeHttpOptions(request.model.http, request.http)
const sourceImages = request.images ?? []
const multipartImages = yield* Effect.forEach(sourceImages, (image) => {
if (image.type === "bytes") return Effect.succeed({ data: image.data, mediaType: image.mediaType })
if (image.type === "url") return ImageInputs.decodeDataUrl(image.url, ADAPTER)
return Effect.succeed(undefined)
})
const multipartMask =
mask === undefined
? undefined
: mask.type === "bytes"
? { data: mask.data, mediaType: mask.mediaType }
: mask.type === "url"
? yield* ImageInputs.decodeDataUrl(mask.url, ADAPTER)
: undefined
const useMultipart =
sourceImages.length > 0 &&
multipartImages.every((image) => image !== undefined) &&
(mask === undefined || multipartMask !== undefined)
const path = sourceImages.length === 0 ? PATH : EDIT_PATH
const url = applyQuery(`${(input.baseURL ?? DEFAULT_BASE_URL).replace(/\/$/, "")}${path}`, http?.query)
if (useMultipart) {
const form = new FormData()
form.append("model", request.model.id)
form.append("prompt", request.prompt)
Object.entries(mergeJsonRecords(nativeOptions(request.options), http?.body) ?? {}).forEach(([key, value]) => {
if (["model", "prompt", "image", "image[]", "images", "mask"].includes(key)) return
form.append(key, typeof value === "string" ? value : ProviderShared.encodeJson(value))
})
multipartImages.forEach((image, index) => {
if (image === undefined) return
form.append("image[]", imageBlob(image.data, image.mediaType), `image-${index}`)
})
if (multipartMask !== undefined)
form.append("mask", imageBlob(multipartMask.data, multipartMask.mediaType), "mask")
const headers = yield* Auth.toEffect(input.auth)({
request,
method: "POST",
url,
body: "[multipart/form-data]",
headers: Headers.remove(Headers.fromInput({ ...input.headers, ...http?.headers }), "content-type"),
})
const response = yield* execute(
HttpClientRequest.post(url).pipe(HttpClientRequest.setHeaders(headers), HttpClientRequest.bodyFormData(form)),
)
return yield* parseResponse(response, request.options, http?.body)
}
const references = sourceImages.map((image) => {
if (image.type === "bytes") return { image_url: ImageInputs.dataUrl(image) }
if (image.type === "url") return { image_url: image.url }
if (image.type === "file-id") return { file_id: image.id }
return undefined
})
if (references.some((image) => image === undefined))
return yield* ImageInputs.invalid(ADAPTER, "OpenAI Images accepts image URLs, data URLs, bytes, and file IDs")
const maskReference =
mask === undefined
? undefined
: mask.type === "bytes"
? { image_url: ImageInputs.dataUrl(mask) }
: mask.type === "url"
? { image_url: mask.url }
: mask.type === "file-id"
? { file_id: mask.id }
: undefined
if (mask !== undefined && maskReference === undefined)
return yield* ImageInputs.invalid(ADAPTER, "OpenAI Images accepts masks as URLs, data URLs, bytes, or file IDs")
const requestBody = mergeJsonRecords(
{
model: request.model.id,
prompt: request.prompt,
images: references.length === 0 ? undefined : references,
mask: maskReference,
},
nativeOptions(request.options),
http?.body,
) as OpenAIImageBody
const text = ProviderShared.encodeJson(requestBody)
const headers = yield* Auth.toEffect(input.auth)({
request,
method: "POST",
url,
body: text,
headers: Headers.fromInput({ ...input.headers, ...http?.headers }),
})
const response = yield* execute(
HttpClientRequest.post(url).pipe(
HttpClientRequest.setHeaders(headers),
HttpClientRequest.bodyText(text, "application/json"),
),
)
return yield* parseResponse(response, request.options, http?.body)
}),
}
return ImageModel.make<OpenAIImageOptions>({ id: input.id, provider: "openai", route, http: input.http })
}
const parseResponse = Effect.fn("OpenAIImages.parseResponse")(function* (
response: HttpClientResponse.HttpClientResponse,
options: OpenAIImageOptions | undefined,
overlay: Record<string, unknown> | undefined,
) {
const payload = yield* response.json.pipe(
Effect.mapError(() => invalidOutput("Failed to read the OpenAI Images response")),
)
const decoded = yield* Schema.decodeUnknownEffect(OpenAIImageResponse)(payload).pipe(
Effect.mapError(() => invalidOutput("OpenAI Images returned an invalid response")),
)
const requestBody = mergeJsonRecords(nativeOptions(options), overlay)
const format =
decoded.output_format ?? (typeof requestBody?.output_format === "string" ? requestBody.output_format : "png")
const images = yield* Effect.forEach(decoded.data, (item, index) => {
if (item.b64_json)
return Effect.fromResult(Encoding.decodeBase64(item.b64_json)).pipe(
Effect.mapError(() => invalidOutput(`OpenAI Images result ${index} contains invalid base64 data`)),
Effect.map(
(data) =>
new GeneratedImage({
mediaType: `image/${format}`,
data,
providerMetadata:
item.revised_prompt === undefined ? undefined : { openai: { revisedPrompt: item.revised_prompt } },
}),
),
)
if (item.url)
return Effect.succeed(
new GeneratedImage({
mediaType: `image/${format}`,
data: item.url,
providerMetadata:
item.revised_prompt === undefined ? undefined : { openai: { revisedPrompt: item.revised_prompt } },
}),
)
return Effect.fail(invalidOutput(`OpenAI Images result ${index} has neither image data nor a URL`))
})
if (images.length === 0) return yield* invalidOutput("OpenAI Images returned no images")
return new ImageResponse({
images,
usage:
decoded.usage === undefined
? undefined
: new Usage({
inputTokens: decoded.usage.input_tokens,
outputTokens: decoded.usage.output_tokens,
totalTokens: decoded.usage.total_tokens,
providerMetadata: { openai: decoded.usage },
}),
providerMetadata: { openai: { outputFormat: format } },
})
})
const imageBlob = (data: Uint8Array, mediaType: string) => {
const buffer = new ArrayBuffer(data.byteLength)
new Uint8Array(buffer).set(data)
return new Blob([buffer], { type: mediaType })
}
export const OpenAIImages = {
model,
} as const
@@ -0,0 +1,293 @@
import { Effect, Encoding, Schema } from "effect"
import { Route } from "../route/client"
import { Auth } from "../route/auth"
import { Endpoint } from "../route/endpoint"
import { Protocol } from "../route/protocol"
import { HttpTransport, WebSocketTransport } from "../route/transport"
import { LLMEvent, LLMRequest, type JsonSchema, type ToolDefinition } from "../schema"
import { OpenResponses } from "./open-responses"
import { optionalArray, ProviderShared } from "./shared"
import { Lifecycle } from "./utils/lifecycle"
import { OpenAIImage } from "./utils/openai-image"
import { ToolSchemaProjection } from "./utils/tool-schema"
const ADAPTER = "openai-responses"
const NAME = "OpenAI Responses"
export const DEFAULT_BASE_URL = "https://api.openai.com/v1"
export const PATH = OpenResponses.PATH
const OpenAIResponsesImageGenerationTool = Schema.Struct({
type: Schema.tag("image_generation"),
action: Schema.optional(Schema.Literals(["auto", "generate", "edit"])),
background: Schema.optional(Schema.Literals(["auto", "opaque", "transparent"])),
input_fidelity: Schema.optional(Schema.Literals(["low", "high"])),
output_compression: Schema.optional(Schema.Int.check(Schema.isBetween({ minimum: 0, maximum: 100 }))),
output_format: Schema.optional(Schema.Literals(["png", "jpeg", "webp"])),
partial_images: Schema.optional(Schema.Int.check(Schema.isGreaterThanOrEqualTo(0))),
quality: Schema.optional(Schema.Literals(["auto", "low", "medium", "high"])),
size: Schema.optional(OpenAIImage.Size),
})
const OpenAIResponsesTools = Schema.Union([OpenResponses.Tool, OpenAIResponsesImageGenerationTool])
const OpenAIResponsesToolChoice = Schema.Union([
OpenResponses.ToolChoice,
Schema.Struct({ type: Schema.tag("image_generation") }),
])
const OpenAIResponsesInputItem = Schema.Union([
Schema.Struct({
role: Schema.tag("assistant"),
content: Schema.Array(Schema.Struct({ type: Schema.tag("output_text"), text: Schema.String })),
phase: Schema.optionalKey(Schema.NullOr(OpenResponses.MessagePhase)),
}),
OpenResponses.InputItem,
])
const OpenAIResponsesCoreFields = {
...OpenResponses.coreFields,
input: Schema.Array(OpenAIResponsesInputItem),
tools: optionalArray(OpenAIResponsesTools),
tool_choice: Schema.optional(OpenAIResponsesToolChoice),
}
const OpenAIResponsesBody = Schema.Struct({
...OpenAIResponsesCoreFields,
stream: Schema.Literal(true),
})
export type OpenAIResponsesBody = Schema.Schema.Type<typeof OpenAIResponsesBody>
const OpenAIResponsesWebSocketMessage = Schema.StructWithRest(
Schema.Struct({
type: Schema.tag("response.create"),
...OpenAIResponsesCoreFields,
}),
[Schema.Record(Schema.String, Schema.Unknown)],
)
type OpenAIResponsesWebSocketMessage = Schema.Schema.Type<typeof OpenAIResponsesWebSocketMessage>
const encodeWebSocketMessage = Schema.encodeSync(Schema.fromJsonString(OpenAIResponsesWebSocketMessage))
const extension = {
id: ADAPTER,
name: NAME,
messagePhase: (value: unknown) => (value === null ? null : undefined),
lowerMedia: ({ part, media, request }) => {
if (request.model.provider !== "xai" || media.mime !== "application/pdf") return undefined
return {
type: "input_file",
filename: part.filename ?? "document.pdf",
file_data: media.base64,
mime_type: media.mime,
}
},
} satisfies OpenResponses.Extension
const nativeImageToolInput = (tool: ToolDefinition) => {
const native = tool.native?.openai
return ProviderShared.isRecord(native) && native.type === "image_generation" ? native : undefined
}
const nativeImageTool = (tool: ToolDefinition) => {
const native = nativeImageToolInput(tool)
return Schema.is(OpenAIResponsesImageGenerationTool)(native) ? native : undefined
}
const lowerTool = Effect.fn("OpenAIResponses.lowerTool")(function* (tool: ToolDefinition, inputSchema: JsonSchema) {
const native = nativeImageToolInput(tool)
if (native !== undefined) {
if (Schema.is(OpenAIResponsesImageGenerationTool)(native)) return native
return yield* ProviderShared.invalidRequest("OpenAI Responses image generation tool options are invalid")
}
return yield* OpenResponses.lowerTool(NAME, tool, inputSchema)
})
const lowerToolChoice = (toolChoice: NonNullable<LLMRequest["toolChoice"]>, tools: ReadonlyArray<ToolDefinition>) =>
ProviderShared.matchToolChoice(NAME, toolChoice, {
auto: () => "auto" as const,
none: () => "none" as const,
required: () => "required" as const,
tool: (name) =>
tools.some((tool) => tool.name === name && nativeImageTool(tool) !== undefined)
? ({ type: "image_generation" } as const)
: { type: "function" as const, name },
})
const fromRequest = Effect.fn("OpenAIResponses.fromRequest")(function* (request: LLMRequest) {
const body = yield* OpenResponses.fromRequestWithExtension(
LLMRequest.update(request, { tools: [], toolChoice: undefined }),
extension,
)
const toolSchemaCompatibility = request.model.compatibility?.toolSchema
return {
...body,
tools:
request.tools.length === 0
? undefined
: yield* Effect.forEach(request.tools, (tool) =>
lowerTool(tool, ToolSchemaProjection.modelCompatibility(tool.inputSchema, toolSchemaCompatibility)),
),
tool_choice: request.toolChoice ? yield* lowerToolChoice(request.toolChoice, request.tools) : undefined,
} satisfies OpenAIResponsesBody
})
type HostedToolData = OpenResponses.StreamItem & {
readonly id: string
readonly status?: string
readonly action?: unknown
readonly queries?: unknown
readonly results?: unknown
readonly code?: string
readonly container_id?: string
readonly outputs?: unknown
readonly server_label?: string
readonly output?: unknown
readonly result?: string
readonly output_format?: "png" | "jpeg" | "webp"
readonly error?: unknown
}
const HOSTED_TOOLS = {
web_search_call: { name: "web_search", input: (item) => item.action ?? {} },
web_search_preview_call: { name: "web_search_preview", input: (item) => item.action ?? {} },
file_search_call: { name: "file_search", input: (item) => ({ queries: item.queries ?? [] }) },
code_interpreter_call: {
name: "code_interpreter",
input: (item) => ({ code: item.code, container_id: item.container_id }),
},
computer_use_call: { name: "computer_use", input: (item) => item.action ?? {} },
image_generation_call: { name: "image_generation", input: () => ({}) },
mcp_call: {
name: "mcp",
input: (item) => ({ server_label: item.server_label, name: item.name, arguments: item.arguments }),
},
local_shell_call: { name: "local_shell", input: (item) => item.action ?? {} },
} as const satisfies Record<string, { readonly name: string; readonly input: (item: HostedToolData) => unknown }>
type HostedToolType = keyof typeof HOSTED_TOOLS
type HostedToolItem = HostedToolData & { readonly type: HostedToolType }
const isHostedToolItem = (item: OpenResponses.StreamItem): item is HostedToolItem =>
item.type in HOSTED_TOOLS && typeof item.id === "string" && item.id.length > 0
const hostedToolResult = Effect.fn("OpenAIResponses.hostedToolResult")(function* (item: HostedToolItem) {
const isError = item.error !== undefined && item.error !== null
if (item.type === "image_generation_call" && item.result) {
yield* Effect.fromResult(Encoding.decodeBase64(item.result)).pipe(
Effect.mapError(() => ProviderShared.eventError(ADAPTER, "OpenAI Responses returned invalid image base64")),
)
const format = item.output_format ?? "png"
return {
type: "content" as const,
value: [
{
type: "file" as const,
uri: `data:image/${format};base64,${item.result}`,
mime: `image/${format}`,
},
],
}
}
return isError ? { type: "error" as const, value: item.error } : { type: "json" as const, value: item }
})
const onHostedToolDone = Effect.fn("OpenAIResponses.onHostedToolDone")(function* (
state: OpenResponses.ParserState,
item: HostedToolItem,
) {
const tool = HOSTED_TOOLS[item.type]
const providerMetadata = OpenResponses.providerMetadata(state, { itemId: item.id })
const events: LLMEvent[] = []
const lifecycle = Lifecycle.stepStart(state.lifecycle, events)
events.push(
LLMEvent.toolCall({
id: item.id,
name: tool.name,
input: tool.input(item),
providerExecuted: true,
providerMetadata,
}),
LLMEvent.toolResult({
id: item.id,
name: tool.name,
result: yield* hostedToolResult(item),
providerExecuted: true,
providerMetadata,
}),
)
return [{ ...state, lifecycle }, events] satisfies OpenResponses.StepResult
})
const step = (state: OpenResponses.ParserState, event: OpenResponses.Event) => {
if (event.type === "response.reasoning_text.delta" || event.type === "response.reasoning_summary.delta")
return event.item_id
? Effect.succeed(OpenResponses.onReasoningDelta(state, event, event.item_id))
: ProviderShared.eventError(ADAPTER, `${event.type} is missing item_id`)
if (event.type === "response.reasoning_text.done" || event.type === "response.reasoning_summary.done")
return event.item_id
? Effect.succeed(OpenResponses.onReasoningDone(state, event))
: ProviderShared.eventError(ADAPTER, `${event.type} is missing item_id`)
if (event.type === "response.output_item.done" && event.item && isHostedToolItem(event.item))
return onHostedToolDone(state, event.item)
return OpenResponses.step(state, event)
}
export const protocol = Protocol.make({
id: ADAPTER,
body: {
schema: OpenAIResponsesBody,
from: fromRequest,
},
stream: {
event: OpenResponses.protocol.stream.event,
initial: (request) => OpenResponses.initial(request, extension),
step,
terminal: OpenResponses.terminal,
},
})
const endpoint = Endpoint.path<OpenAIResponsesBody>(PATH, { baseURL: DEFAULT_BASE_URL })
const auth = Auth.none
export const httpTransport = HttpTransport.sseJson.with<OpenAIResponsesBody>()
export const route = Route.make({
id: ADAPTER,
provider: "openai",
providerMetadataKey: "openai",
protocol,
endpoint,
auth,
transport: httpTransport,
defaults: { providerOptions: { openai: { store: false } } },
})
const decodeWebSocketMessage = ProviderShared.validateWith(Schema.decodeUnknownEffect(OpenAIResponsesWebSocketMessage))
const webSocketMessage = (body: OpenAIResponsesBody | Record<string, unknown>) =>
Effect.gen(function* () {
if (!ProviderShared.isRecord(body))
return yield* ProviderShared.invalidRequest("OpenAI Responses WebSocket body must be a JSON object")
const { stream: _stream, ...message } = body
return yield* decodeWebSocketMessage({ ...message, type: "response.create" })
})
export const webSocketTransport = WebSocketTransport.jsonTransport.with<
OpenAIResponsesBody,
OpenAIResponsesWebSocketMessage
>({
toMessage: webSocketMessage,
encodeMessage: encodeWebSocketMessage,
})
export const webSocketRoute = Route.make({
id: `${ADAPTER}-websocket`,
provider: "openai",
providerMetadataKey: "openai",
protocol,
endpoint,
auth,
transport: webSocketTransport,
defaults: { providerOptions: { openai: { store: false } } },
})
export * as OpenAIResponses from "./openai-responses"
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@@ -0,0 +1,327 @@
import { Buffer } from "node:buffer"
import { Tool } from "@opencode-ai/schema/tool"
import { Effect, Schema, Stream } from "effect"
import * as Sse from "effect/unstable/encoding/Sse"
import { Headers, HttpClientRequest } from "effect/unstable/http"
import {
InvalidProviderOutputReason,
InvalidRequestReason,
AIError,
type ContentPart,
type LLMRequest,
type MediaPart,
type TextPart,
type ToolResultPart,
} from "../schema"
import { isRecord } from "../utils/record"
export { isRecord }
export const Json = Schema.fromJsonString(Schema.Unknown)
export const decodeJson = Schema.decodeUnknownSync(Json)
export const encodeJson = Schema.encodeSync(Json)
const isJson = Schema.is(Schema.Json)
export const JsonObject = Schema.Record(Schema.String, Schema.Unknown)
export const optionalArray = <const S extends Schema.Top>(schema: S) => Schema.optional(Schema.Array(schema))
export const optionalNull = <const S extends Schema.Top>(schema: S) => Schema.optional(Schema.NullOr(schema))
/**
* Streaming tool-call accumulator. Adapters that build a tool call across
* multiple `tool-input-delta` chunks store the partial JSON input string here
* and finalize it with `parseToolInput` once the call completes.
*/
export interface ToolAccumulator {
readonly id: string
readonly name: string
readonly input: string
}
/**
* `Usage.totalTokens` policy shared by every route. Honors a provider-
* supplied total; otherwise falls back to `inputTokens + outputTokens` only
* when at least one is defined. Returns `undefined` when neither input nor
* output is known so routes don't publish a misleading `0`.
*
* Under the additive `AI.Usage` contract, `inputTokens` and `outputTokens`
* are the non-cached input and visible output only. The provider-supplied
* `total` is the source of truth when present; the computed fallback
* under-counts cache and reasoning by design and exists mainly so
* Anthropic-style providers (which don't surface a total) still get a
* sensible aggregate on the input + output axes.
*/
export const totalTokens = (
inputTokens: number | undefined,
outputTokens: number | undefined,
total: number | undefined,
) => {
if (total !== undefined) return total
if (inputTokens === undefined && outputTokens === undefined) return undefined
return (inputTokens ?? 0) + (outputTokens ?? 0)
}
/**
* Subtract `subtrahend` from `total`, clamping to zero if the provider
* reports a non-sensical breakdown (e.g. `cached_tokens > prompt_tokens`).
* Used by protocol mappers when deriving a non-overlapping breakdown field
* from a provider's inclusive total — `nonCachedInputTokens` from
* `inputTokens - cacheReadInputTokens - cacheWriteInputTokens`.
*
* If `total` is `undefined`, returns `undefined` (we don't fabricate
* counts). If `subtrahend` is `undefined`, returns `total` unchanged. The
* provider-native breakdown stays available on `Usage.native` for debugging.
*/
export const subtractTokens = (total: number | undefined, subtrahend: number | undefined): number | undefined => {
if (total === undefined) return undefined
if (subtrahend === undefined) return total
return Math.max(0, total - subtrahend)
}
/**
* Sum a list of optional token counts, returning `undefined` only when
* every value is `undefined` (so we don't fabricate a `0`). Used by
* protocol mappers to derive the inclusive `inputTokens` total from a
* provider that natively reports a non-overlapping breakdown
* (e.g. Anthropic, whose `input_tokens` is already non-cached only).
*/
export const sumTokens = (...values: ReadonlyArray<number | undefined>): number | undefined => {
if (values.every((value) => value === undefined)) return undefined
return values.reduce((acc: number, value) => acc + (value ?? 0), 0)
}
export const eventError = (route: string, message: string, raw?: string) =>
new AIError({
module: "ProviderShared",
method: "stream",
reason: new InvalidProviderOutputReason({ route, message, raw }),
})
export const parseJson = (route: string, input: string, message: string) =>
Effect.try({
try: () => decodeJson(input),
catch: () => eventError(route, message, input),
})
/**
* Join the `text` field of a list of parts with newlines. Used by routes
* that flatten system / message content arrays into a single provider string
* (OpenAI Chat `system` content, OpenAI Responses `system` content, Gemini
* `systemInstruction.parts[].text`).
*/
export const joinText = (parts: ReadonlyArray<{ readonly text: string }>) => parts.map((part) => part.text).join("\n")
const escapeSystemUpdateText = (text: string) =>
text.replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;")
/**
* Stable fallback representation for chronological `Message.system(...)`
* updates on routes that do not support that privileged role natively. The
* wrapper remains visibly lower-authority user text, preserves the original
* temporal position, and XML-escapes content so it cannot close the wrapper.
*/
export const wrapSystemUpdate = (parts: ReadonlyArray<{ readonly text: string }>) =>
`<system-update>\n${escapeSystemUpdateText(joinText(parts))}\n</system-update>`
/**
* Chronological system updates deliberately accept text only. Do not insert
* raw retrieved, tool, or web content into privileged updates: keep untrusted
* data in ordinary user/tool messages instead.
*/
export const systemUpdateText = Effect.fn("ProviderShared.systemUpdateText")(function* (
route: string,
message: LLMRequest["messages"][number],
) {
const content: TextPart[] = []
for (const part of message.content) {
if (!supportsContent(part, ["text"])) return yield* unsupportedContent(route, "system", ["text"])
content.push(part)
}
return content
})
/** Lower an unsupported privileged update into visible, in-order user text. */
export const wrappedSystemUpdate = Effect.fn("ProviderShared.wrappedSystemUpdate")(function* (
route: string,
message: LLMRequest["messages"][number],
) {
const content = yield* systemUpdateText(route, message)
return { type: "text" as const, text: wrapSystemUpdate(content), cache: content.at(-1)?.cache }
})
/**
* Parse the streamed JSON input of a tool call. Treats an empty string as
* `"{}"` — providers occasionally finish a tool call without ever emitting
* input deltas (e.g. zero-arg tools). The error message is uniform across
* routes: `Invalid JSON input for <route> tool call <name>`.
*/
export const parseToolInput = (route: string, name: string, raw: string) =>
parseJson(route, raw || "{}", `Invalid JSON input for ${route} tool call ${name}`)
export const IMAGE_MIMES = ["image/png", "image/jpeg", "image/gif", "image/webp"] as const
export const VIDEO_MIMES = ["video/mp4", "video/webm", "video/quicktime"] as const
export const AUDIO_MIMES = ["audio/wav", "audio/mp3", "audio/aiff", "audio/aac", "audio/ogg", "audio/flac"] as const
export const PDF_MIMES = ["application/pdf"] as const
export const MEDIA_MIMES = [...IMAGE_MIMES, ...VIDEO_MIMES, ...AUDIO_MIMES, ...PDF_MIMES] as const
export const MAX_MEDIA_ENCODED_BYTES = 28 * 1024 * 1024
export const MAX_MEDIA_DECODED_BYTES = 20 * 1024 * 1024
const base64Pattern = /^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$/
export interface ValidatedMedia {
readonly mime: string
readonly base64: string
readonly dataUrl: string
readonly bytes: Uint8Array
}
export const validateMedia = Effect.fn("ProviderShared.validateMedia")(function* (
route: string,
part: MediaPart,
supportedMimes: ReadonlySet<string>,
) {
const mime = part.mediaType.toLowerCase()
if (!supportedMimes.has(mime)) return yield* invalidRequest(`${route} does not support media type ${part.mediaType}`)
let base64: string
if (typeof part.data !== "string") {
if (part.data.byteLength > MAX_MEDIA_DECODED_BYTES)
return yield* invalidRequest(`${route} media exceeds the ${MAX_MEDIA_DECODED_BYTES} byte decoded limit`)
base64 = Buffer.from(part.data).toString("base64")
} else if (part.data.startsWith("data:")) {
const match = /^data:([^;,]+);base64,([A-Za-z0-9+/]*={0,2})$/s.exec(part.data)
if (!match) return yield* invalidRequest(`${route} media data URL must contain valid base64`)
if (match[1]!.toLowerCase() !== mime)
return yield* invalidRequest(`${route} media type ${part.mediaType} does not match data URL type ${match[1]}`)
base64 = match[2]!
} else {
base64 = part.data
}
if (Buffer.byteLength(base64, "utf8") > MAX_MEDIA_ENCODED_BYTES)
return yield* invalidRequest(`${route} media exceeds the ${MAX_MEDIA_ENCODED_BYTES} byte encoded limit`)
if (!base64 || base64.length % 4 !== 0 || !base64Pattern.test(base64))
return yield* invalidRequest(`${route} media must contain valid base64`)
const bytes = Buffer.from(base64, "base64")
if (bytes.byteLength > MAX_MEDIA_DECODED_BYTES)
return yield* invalidRequest(`${route} media exceeds the ${MAX_MEDIA_DECODED_BYTES} byte decoded limit`)
if (bytes.toString("base64") !== base64) return yield* invalidRequest(`${route} media must contain canonical base64`)
return { mime, base64, dataUrl: `data:${mime};base64,${base64}`, bytes } satisfies ValidatedMedia
})
export const validateToolFile = (route: string, part: Tool.FileContent, supportedMimes: ReadonlySet<string>) =>
validateMedia(route, { type: "media", mediaType: part.mime, data: part.uri, filename: part.name }, supportedMimes)
export const trimBaseUrl = (value: string) => value.replace(/\/+$/, "")
export const toolResultText = (part: ToolResultPart) => {
if (part.result.type === "text") return String(part.result.value)
if (part.result.type === "error") {
const value = part.result.value
const prototype =
typeof value === "object" && value !== null && !Array.isArray(value) && Object.getPrototypeOf(value)
const structured = Array.isArray(value) || prototype === Object.prototype || prototype === null
return structured && isJson(value) ? encodeJson(value) : String(value)
}
return encodeJson(part.result.value)
}
export const errorText = (error: unknown) => {
if (error instanceof Error) return error.message
if (typeof error === "string") return error
if (typeof error === "number" || typeof error === "boolean" || typeof error === "bigint") return String(error)
if (error === null) return "null"
if (error === undefined) return "undefined"
return "Unknown stream error"
}
/**
* `framing` step for Server-Sent Events. Decodes UTF-8, runs the SSE channel
* decoder, and drops empty / `[DONE]` keep-alive events so the downstream
* `decodeChunk` sees one JSON string per element. The SSE channel emits a
* `Retry` control event on its error channel; we drop it here (we don't
* implement client-driven retries) so the public error channel stays
* `AIError`.
*/
export const sseFraming = (bytes: Stream.Stream<Uint8Array, AIError>): Stream.Stream<string, AIError> =>
bytes.pipe(
Stream.decodeText(),
Stream.pipeThroughChannel(Sse.decode()),
Stream.catchTag("Retry", () => Stream.empty),
Stream.filter((event) => event.data.length > 0 && event.data !== "[DONE]"),
Stream.map((event) => event.data),
)
/**
* Canonical invalid-request constructor. Lift one-line `const invalid =
* (message) => invalidRequest(message)` aliases out of every
* route so the error constructor lives in one place. If we ever extend
* `InvalidRequestReason` with route context or trace metadata, the change
* lands here.
*/
export const invalidRequest = (message: string) =>
new AIError({
module: "ProviderShared",
method: "request",
reason: new InvalidRequestReason({ message }),
})
export const matchToolChoice = <Auto, None, Required, Tool>(
route: string,
toolChoice: NonNullable<LLMRequest["toolChoice"]>,
cases: {
readonly auto: () => Auto
readonly none: () => None
readonly required: () => Required
readonly tool: (name: string) => Tool
},
) =>
Effect.gen(function* () {
if (toolChoice.type === "auto") return cases.auto()
if (toolChoice.type === "none") return cases.none()
if (toolChoice.type === "required") return cases.required()
if (!toolChoice.name) return yield* invalidRequest(`${route} tool choice requires a tool name`)
return cases.tool(toolChoice.name)
})
type ContentType = ContentPart["type"]
const formatContentTypes = (types: ReadonlyArray<ContentType>) => {
if (types.length <= 1) return types[0] ?? ""
if (types.length === 2) return `${types[0]} and ${types[1]}`
return `${types.slice(0, -1).join(", ")}, and ${types.at(-1)}`
}
export const supportsContent = <const Type extends ContentType>(
part: ContentPart,
types: ReadonlyArray<Type>,
): part is Extract<ContentPart, { readonly type: Type }> => (types as ReadonlyArray<ContentType>).includes(part.type)
export const unsupportedContent = (
route: string,
role: LLMRequest["messages"][number]["role"],
types: ReadonlyArray<ContentType>,
) => invalidRequest(`${route} ${role} messages only support ${formatContentTypes(types)} content for now`)
/**
* Build a `validate` step from a Schema decoder. Replaces the per-route
* lambda body `(payload) => decode(payload).pipe(Effect.mapError((e) =>
* invalid(e.message)))`. Any decode error is translated into
* `AIError` carrying the original parse-error message.
*/
export const validateWith =
<A, I, E extends { readonly message: string }>(decode: (input: I) => Effect.Effect<A, E>) =>
(payload: I) =>
decode(payload).pipe(Effect.mapError((error) => invalidRequest(error.message)))
/**
* Build an HTTP POST with a JSON body. Sets `content-type: application/json`
* automatically after caller-supplied headers so routes cannot accidentally
* send JSON with a stale content type. The body is passed pre-encoded so
* routes can choose between
* `Schema.encodeSync(payload)` and `ProviderShared.encodeJson(payload)`.
*/
export const jsonPost = (input: { readonly url: string; readonly body: string; readonly headers?: Headers.Input }) =>
HttpClientRequest.post(input.url).pipe(
HttpClientRequest.setHeaders(Headers.set(Headers.fromInput(input.headers), "content-type", "application/json")),
HttpClientRequest.bodyText(input.body, "application/json"),
)
export * as ProviderShared from "./shared"
@@ -22,6 +22,8 @@ const signRequest = (input: {
readonly body: string
readonly headers: Headers.Headers
readonly credentials: Credentials
readonly service: string
readonly name: string
}) =>
Effect.tryPromise({
try: async () => {
@@ -34,23 +36,26 @@ const signRequest = (input: {
accessKeyId: input.credentials.accessKeyId,
secretAccessKey: input.credentials.secretAccessKey,
sessionToken: input.credentials.sessionToken,
service: "bedrock",
service: input.service,
}).sign()
return Object.fromEntries(signed.headers.entries())
},
catch: (error) =>
ProviderShared.invalidRequest(
`Bedrock Converse SigV4 signing failed: ${error instanceof Error ? error.message : String(error)}`,
`${input.name} SigV4 signing failed: ${error instanceof Error ? error.message : String(error)}`,
),
})
/** Sign the exact JSON bytes with SigV4 using credentials configured on the route. */
export const sigV4 = (credentials: Credentials | undefined) =>
export const sigV4 = (
credentials: Credentials | undefined,
options: { readonly service?: string; readonly name?: string } = {},
) =>
Auth.custom((input: AuthInput) => {
return Effect.gen(function* () {
if (!credentials) {
return yield* ProviderShared.invalidRequest(
"Bedrock Converse requires either route bearer auth or AWS credentials configured on the route",
`${options.name ?? "Bedrock Converse"} requires either route bearer auth or AWS credentials configured on the route`,
)
}
const headersForSigning = Headers.set(input.headers, "content-type", "application/json")
@@ -59,6 +64,8 @@ export const sigV4 = (credentials: Credentials | undefined) =>
body: input.body,
headers: headersForSigning,
credentials,
service: options.service ?? "bedrock",
name: options.name ?? "Bedrock Converse",
})
return Headers.setAll(headersForSigning, signed)
})
@@ -49,10 +49,10 @@ const DOCUMENT_FORMATS = {
"text/markdown": "md",
} as const satisfies Record<string, DocumentFormat>
const documentBlock = (part: MediaPart, format: DocumentFormat, bytes: string): DocumentBlock => ({
const documentBlock = (name: string, format: DocumentFormat, bytes: string): DocumentBlock => ({
document: {
format,
name: part.filename ?? `document.${format}`,
name,
source: { bytes },
},
})
@@ -77,12 +77,14 @@ export const lower = Effect.fn("BedrockMedia.lower")(function* (part: MediaPart)
return yield* ProviderShared.invalidRequest(`Bedrock Converse does not support image media type ${part.mediaType}`)
const documentFormat = DOCUMENT_FORMATS[mime as keyof typeof DOCUMENT_FORMATS]
if (documentFormat) {
if (!part.filename)
return yield* ProviderShared.invalidRequest("Bedrock Converse document media requires a filename")
const media = yield* ProviderShared.validateMedia(
"Bedrock Converse",
part,
new Set<string>(Object.keys(DOCUMENT_FORMATS)),
)
return documentBlock(part, documentFormat, media.base64)
return documentBlock(part.filename, documentFormat, media.base64)
}
return yield* ProviderShared.invalidRequest(`Bedrock Converse does not support media type ${part.mediaType}`)
})
@@ -0,0 +1,34 @@
import { Effect, Encoding } from "effect"
import type { ImageInput } from "../../image"
import { InvalidRequestReason, AIError } from "../../schema"
const invalid = (module: string, message: string) =>
new AIError({
module,
method: "generate",
reason: new InvalidRequestReason({ message }),
})
export const dataUrl = (input: Extract<ImageInput, { readonly type: "bytes" }>) =>
`data:${input.mediaType};base64,${Encoding.encodeBase64(input.data)}`
export const decodeDataUrl = (
url: string,
module: string,
): Effect.Effect<{ readonly mediaType: string; readonly data: Uint8Array } | undefined, AIError> => {
if (!url.startsWith("data:")) return Effect.succeed(undefined)
const match = /^data:([^;,]+);base64,(.*)$/s.exec(url)
if (!match) return Effect.fail(invalid(module, "Image data URLs must contain a MIME type and base64 data"))
return Effect.fromResult(Encoding.decodeBase64(match[2])).pipe(
Effect.mapError(() => invalid(module, "Image data URL contains invalid base64 data")),
Effect.map((data) => ({ mediaType: match[1], data })),
)
}
export const invalidImageInput = invalid
export const ImageInputs = {
dataUrl,
decodeDataUrl,
invalid: invalidImageInput,
} as const
@@ -0,0 +1,105 @@
import { LLMEvent, type FinishReasonDetails, type ProviderMetadata, type Usage } from "../../schema"
export interface State {
readonly stepStarted: boolean
readonly text: ReadonlySet<string>
readonly reasoning: ReadonlySet<string>
}
export const initial = (): State => ({ stepStarted: false, text: new Set(), reasoning: new Set() })
export const stepStart = (state: State, events: LLMEvent[]): State => {
if (state.stepStarted) return state
events.push(LLMEvent.stepStart({ index: 0 }))
return { ...state, stepStarted: true }
}
export const textStart = (state: State, events: LLMEvent[], id: string, providerMetadata?: ProviderMetadata): State => {
if (state.text.has(id)) return state
const stepped = stepStart(state, events)
events.push(LLMEvent.textStart({ id, providerMetadata }))
return { ...stepped, text: new Set([...stepped.text, id]) }
}
export const textDelta = (state: State, events: LLMEvent[], id: string, text: string): State => {
const started = textStart(state, events, id)
events.push(LLMEvent.textDelta({ id, text }))
return started
}
export const reasoningStart = (
state: State,
events: LLMEvent[],
id: string,
providerMetadata?: ProviderMetadata,
): State => {
if (state.reasoning.has(id)) return state
const stepped = stepStart(state, events)
events.push(LLMEvent.reasoningStart({ id, providerMetadata }))
return { ...stepped, reasoning: new Set([...stepped.reasoning, id]) }
}
export const reasoningDelta = (
state: State,
events: LLMEvent[],
id: string,
text: string,
providerMetadata?: ProviderMetadata,
): State => {
const started = reasoningStart(state, events, id, providerMetadata)
events.push(LLMEvent.reasoningDelta({ id, text, providerMetadata }))
return started
}
export const reasoningEnd = (
state: State,
events: LLMEvent[],
id: string,
providerMetadata?: ProviderMetadata,
): State => {
if (!state.reasoning.has(id)) return state
const stepped = stepStart(state, events)
events.push(LLMEvent.reasoningEnd({ id, providerMetadata }))
const reasoning = new Set(stepped.reasoning)
reasoning.delete(id)
return { ...stepped, reasoning }
}
export const textEnd = (state: State, events: LLMEvent[], id: string, providerMetadata?: ProviderMetadata): State => {
if (!state.text.has(id)) return state
const stepped = stepStart(state, events)
events.push(LLMEvent.textEnd({ id, providerMetadata }))
const text = new Set(stepped.text)
text.delete(id)
return { ...stepped, text }
}
const closeOpenBlocks = (state: State, events: LLMEvent[]): State => {
for (const id of state.reasoning) events.push(LLMEvent.reasoningEnd({ id }))
for (const id of state.text) events.push(LLMEvent.textEnd({ id }))
return { ...state, text: new Set(), reasoning: new Set() }
}
export const finish = (
state: State,
events: LLMEvent[],
input: {
readonly reason: FinishReasonDetails
readonly usage?: Usage
readonly providerMetadata?: ProviderMetadata
},
): State => {
const stepped = closeOpenBlocks(stepStart(state, events), events)
events.push(
LLMEvent.stepFinish({
index: 0,
reason: input.reason,
usage: input.usage,
providerMetadata: input.providerMetadata,
}),
LLMEvent.finish(input),
)
return { ...stepped, stepStarted: false }
}
export * as Lifecycle from "./lifecycle"
@@ -0,0 +1,65 @@
import { Schema } from "effect"
import { TextVerbosity, type LLMRequest } from "../../schema"
export const ResponseIncludables = [
"file_search_call.results",
"web_search_call.results",
"web_search_call.action.sources",
"message.input_image.image_url",
"computer_call_output.output.image_url",
"code_interpreter_call.outputs",
"reasoning.encrypted_content",
"message.output_text.logprobs",
] as const
export type ResponseIncludable = (typeof ResponseIncludables)[number]
export const ServiceTiers = ["auto", "default", "flex", "priority"] as const
export type ServiceTier = (typeof ServiceTiers)[number]
const TEXT_VERBOSITY = new Set<string>(["low", "medium", "high"])
const INCLUDABLES = new Set<string>(ResponseIncludables)
const SERVICE_TIERS = new Set<string>(ServiceTiers)
const isTextVerbosity = (value: unknown): value is Schema.Schema.Type<typeof TextVerbosity> =>
typeof value === "string" && TEXT_VERBOSITY.has(value)
const isServiceTier = (value: unknown): value is ServiceTier => typeof value === "string" && SERVICE_TIERS.has(value)
export const ReasoningEffort = Schema.String
export const TextVerbositySchema = TextVerbosity
export const ResponseIncludableSchema = Schema.Literals(ResponseIncludables)
export const ServiceTierSchema = Schema.Literals(ServiceTiers)
export interface Resolved {
readonly instructions?: string
readonly store?: boolean
readonly promptCacheKey?: string
readonly reasoningEffort?: string
readonly reasoningSummary?: "auto" | "concise" | "detailed"
readonly include?: ReadonlyArray<ResponseIncludable>
readonly textVerbosity?: Schema.Schema.Type<typeof TextVerbosity>
readonly serviceTier?: ServiceTier
}
export const resolve = (request: LLMRequest): Resolved => {
const input = request.providerOptions?.[request.model.route.providerMetadataKey ?? "openresponses"]
const include = Array.isArray(input?.include)
? input.include.filter((entry): entry is ResponseIncludable => INCLUDABLES.has(entry))
: []
const reasoningSummary = input?.reasoningSummary
return {
instructions: typeof input?.instructions === "string" ? input.instructions : undefined,
store: typeof input?.store === "boolean" ? input.store : undefined,
promptCacheKey: typeof input?.promptCacheKey === "string" ? input.promptCacheKey : undefined,
reasoningEffort: typeof input?.reasoningEffort === "string" ? input.reasoningEffort : undefined,
reasoningSummary:
reasoningSummary === "auto" || reasoningSummary === "concise" || reasoningSummary === "detailed"
? reasoningSummary
: undefined,
include: include.length > 0 ? include : undefined,
textVerbosity: isTextVerbosity(input?.textVerbosity) ? input.textVerbosity : undefined,
serviceTier: isServiceTier(input?.serviceTier) ? input.serviceTier : undefined,
}
}
export * as OpenResponsesOptions from "./open-responses-options"
@@ -0,0 +1,20 @@
import { Schema } from "effect"
const dimensions = (value: string) => {
const match = /^(\d+)x(\d+)$/.exec(value)
if (!match) return undefined
return { width: Number(match[1]), height: Number(match[2]) }
}
export const Size = Schema.String.check(
Schema.makeFilter((value) => {
if (value === "auto") return undefined
const parsed = dimensions(value)
if (!parsed) return "image size must be `auto` or `{width}x{height}`"
return parsed.width > 0 && parsed.height > 0 ? undefined : "image dimensions must be positive integers"
}),
)
export const OpenAIImage = {
Size,
} as const
@@ -0,0 +1,23 @@
import { ReasoningEfforts } from "../../schema"
import { OpenResponsesOptions } from "./open-responses-options"
export const OpenAIReasoningEfforts = ReasoningEfforts
export type OpenAIReasoningEffort = string
// Mirrors OpenAI's `ResponseIncludable` union from the official SDK. Keep this
// in lockstep with `openai-node/src/resources/responses/responses.ts`.
export const OpenAIResponseIncludables = OpenResponsesOptions.ResponseIncludables
export type OpenAIResponseIncludable = OpenResponsesOptions.ResponseIncludable
export const OpenAIServiceTiers = OpenResponsesOptions.ServiceTiers
export type OpenAIServiceTier = OpenResponsesOptions.ServiceTier
export const OpenAIReasoningEffort = OpenResponsesOptions.ReasoningEffort
export const OpenAITextVerbosity = OpenResponsesOptions.TextVerbositySchema
export const OpenAIResponseIncludable = OpenResponsesOptions.ResponseIncludableSchema
export const OpenAIServiceTier = OpenResponsesOptions.ServiceTierSchema
export const isReasoningEffort = (effort: unknown): effort is OpenAIReasoningEffort => typeof effort === "string"
export const resolve = OpenResponsesOptions.resolve
export * as OpenAIOptions from "./openai-options"
@@ -1,4 +1,4 @@
import type { JsonSchema, ModelToolSchemaCompatibility } from "../../schema"
import type { JsonSchema, LanguageModelToolSchemaCompatibility } from "../../schema"
import { isRecord } from "../../utils/record"
import { GeminiToolSchema } from "./gemini-tool-schema"
@@ -63,11 +63,13 @@ const openAI = (schema: JsonSchema): JsonSchema => {
return isRecord(normalized) ? normalized : { type: "object" }
}
const responses = openAI
const gemini = (schema: JsonSchema): JsonSchema => GeminiToolSchema.convert(schema) ?? {}
const modelCompatibility = (
schema: JsonSchema,
compatibility: ModelToolSchemaCompatibility | undefined,
compatibility: LanguageModelToolSchemaCompatibility | undefined,
): JsonSchema => {
if (compatibility === undefined) return schema
switch (compatibility) {
@@ -83,4 +85,5 @@ export const ToolSchemaProjection = {
modelCompatibility,
moonshot,
openAI,
responses,
} as const
@@ -1,5 +1,5 @@
import { Effect } from "effect"
import { LLMError, LLMEvent, type ProviderMetadata, type ToolCall } from "../../schema"
import { AIError, LLMEvent, type ProviderMetadata, type ToolCall, type ToolInputError } from "../../schema"
import { eventError, parseToolInput, type ToolAccumulator } from "../shared"
type StreamKey = string | number
@@ -53,6 +53,7 @@ const inputStart = (tool: PendingTool) =>
LLMEvent.toolInputStart({
id: tool.id,
name: tool.name,
providerExecuted: tool.providerExecuted ? true : undefined,
providerMetadata: tool.providerMetadata,
})
@@ -63,19 +64,36 @@ const inputDelta = (tool: PendingTool, text: string) =>
text,
})
const toolCall = (route: string, tool: PendingTool, inputOverride?: string) =>
parseToolInput(route, tool.name, inputOverride ?? tool.input).pipe(
Effect.map(
(input): ToolCall =>
LLMEvent.toolCall({
id: tool.id,
name: tool.name,
input,
providerExecuted: tool.providerExecuted ? true : undefined,
providerMetadata: tool.providerMetadata,
}),
const toolCall = (route: string, tool: PendingTool, inputOverride?: string) => {
const raw = inputOverride ?? tool.input
return parseToolInput(route, tool.name, raw).pipe(
Effect.map((input): ToolCall | ToolInputError =>
LLMEvent.toolCall({
id: tool.id,
name: tool.name,
input,
providerExecuted: tool.providerExecuted ? true : undefined,
providerMetadata: tool.providerMetadata,
}),
),
Effect.catch((error) =>
tool.providerExecuted
? Effect.fail(error)
: Effect.succeed(
LLMEvent.toolInputError({
id: tool.id,
name: tool.name,
raw,
}),
),
),
)
}
const finishEvents = (tool: PendingTool, event: ToolCall | ToolInputError): ReadonlyArray<LLMEvent> =>
event.type === "tool-input-error"
? [event]
: [LLMEvent.toolInputEnd({ id: tool.id, name: tool.name, providerMetadata: tool.providerMetadata }), event]
/** Store the updated tool and produce the optional public delta event. */
const appendTool = <K extends StreamKey>(
@@ -94,8 +112,8 @@ const appendTool = <K extends StreamKey>(
}
}
export const isError = <K extends StreamKey>(result: AppendOutcome<K> | LLMError): result is LLMError =>
result instanceof LLMError
export const isError = <K extends StreamKey>(result: AppendOutcome<K> | AIError): result is AIError =>
result instanceof AIError
/**
* Register a tool call whose start event arrived before any argument deltas.
@@ -120,10 +138,10 @@ export const appendOrStart = <K extends StreamKey>(
key: K,
delta: { readonly id?: string; readonly name?: string; readonly text: string },
missingToolMessage: string,
): AppendOutcome<K> | LLMError => {
): AppendOutcome<K> | AIError => {
const current = tools[key]
const id = delta.id ?? current?.id
const name = delta.name ?? current?.name
const id = current?.id ?? delta.id
const name = current?.name ?? delta.name
if (!id || !name) return eventError(route, missingToolMessage)
const tool = {
@@ -149,7 +167,7 @@ export const appendExisting = <K extends StreamKey>(
key: K,
text: string,
missingToolMessage: string,
): AppendOutcome<K> | LLMError => {
): AppendOutcome<K> | AIError => {
const current = tools[key]
if (!current) return eventError(route, missingToolMessage)
if (text.length === 0) return { tools, tool: current, events: [] }
@@ -158,8 +176,9 @@ export const appendExisting = <K extends StreamKey>(
/**
* Finalize one pending tool call: parse the accumulated raw JSON, remove it
* from state, and return the optional public `tool-call` event. Missing keys are
* a no-op because some providers emit stop events for non-tool content blocks.
* from state, and return either a call or a non-executable local input error.
* Missing keys are a no-op because some providers emit stop events for
* non-tool content blocks.
*/
export const finish = <K extends StreamKey>(route: string, tools: State<K>, key: K) =>
Effect.gen(function* () {
@@ -167,10 +186,7 @@ export const finish = <K extends StreamKey>(route: string, tools: State<K>, key:
if (!tool) return { tools }
return {
tools: withoutTool(tools, key),
events: [
LLMEvent.toolInputEnd({ id: tool.id, name: tool.name, providerMetadata: tool.providerMetadata }),
yield* toolCall(route, tool),
],
events: finishEvents(tool, yield* toolCall(route, tool)),
}
})
@@ -185,17 +201,14 @@ export const finishWithInput = <K extends StreamKey>(route: string, tools: State
if (!tool) return { tools }
return {
tools: withoutTool(tools, key),
events: [
LLMEvent.toolInputEnd({ id: tool.id, name: tool.name, providerMetadata: tool.providerMetadata }),
yield* toolCall(route, tool, input),
],
events: finishEvents(tool, yield* toolCall(route, tool, input)),
}
})
/**
* Finalize every pending tool call at once. OpenAI Chat has this shape: it does
* not emit per-tool stop events, so all accumulated calls finish when the choice
* receives a terminal `finish_reason`.
* not emit per-tool stop events, so all accumulated calls finish independently
* when the choice receives a terminal `finish_reason`.
*/
export const finishAll = <K extends StreamKey>(route: string, tools: State<K>) =>
Effect.gen(function* () {
@@ -205,12 +218,7 @@ export const finishAll = <K extends StreamKey>(route: string, tools: State<K>) =
return {
tools: empty<K>(),
events: yield* Effect.forEach(pending, (tool) =>
toolCall(route, tool).pipe(
Effect.map((call) => [
LLMEvent.toolInputEnd({ id: tool.id, name: tool.name, providerMetadata: tool.providerMetadata }),
call,
]),
),
toolCall(route, tool).pipe(Effect.map((event) => finishEvents(tool, event))),
).pipe(Effect.map((events) => events.flat())),
}
})
+202
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@@ -0,0 +1,202 @@
import { Effect, Encoding, Schema } from "effect"
import { Headers, HttpClientRequest } from "effect/unstable/http"
import { GeneratedImage, ImageModel, ImageResponse, type ImageRequestFor, type ImageRoute } from "../image"
import { Auth, type Definition as AuthDefinition } from "../route/auth"
import {
InvalidProviderOutputReason,
AIError,
Usage,
mergeHttpOptions,
mergeJsonRecords,
type HttpOptions,
} from "../schema"
import { ProviderShared, optionalNull } from "./shared"
import { ImageInputs } from "./utils/image-input"
const ADAPTER = "xai-images"
export const DEFAULT_BASE_URL = "https://api.x.ai/v1"
export const PATH = "/images/generations"
export const EDIT_PATH = "/images/edits"
export type XAIImageString<Known extends string> = Known | (string & {})
export type XAIImageOptions = {
readonly n?: number
readonly aspectRatio?: XAIImageString<
| "1:1"
| "3:4"
| "4:3"
| "9:16"
| "16:9"
| "2:3"
| "3:2"
| "9:19.5"
| "19.5:9"
| "9:20"
| "20:9"
| "1:2"
| "2:1"
| "auto"
>
readonly aspect_ratio?: XAIImageString<
| "1:1"
| "3:4"
| "4:3"
| "9:16"
| "16:9"
| "2:3"
| "3:2"
| "9:19.5"
| "19.5:9"
| "9:20"
| "20:9"
| "1:2"
| "2:1"
| "auto"
>
readonly resolution?: XAIImageString<"1k" | "2k">
readonly responseFormat?: XAIImageString<"url" | "b64_json">
readonly response_format?: XAIImageString<"url" | "b64_json">
} & Record<string, unknown>
type XAIImageBody = Record<string, unknown> & {
readonly model: string
readonly prompt: string
}
const XAIImageResponse = Schema.Struct({
data: Schema.Array(
Schema.Struct({
b64_json: optionalNull(Schema.String),
url: optionalNull(Schema.String),
revised_prompt: optionalNull(Schema.String),
mime_type: optionalNull(Schema.String),
}),
),
usage: Schema.optional(Schema.Unknown),
})
export interface ModelInput {
readonly id: string
readonly auth: AuthDefinition
readonly baseURL?: string
readonly headers?: Record<string, string>
readonly http?: HttpOptions
}
const nativeOptions = (options: XAIImageOptions | undefined) => {
if (!options) return undefined
const { aspectRatio, responseFormat, ...native } = options
return {
aspect_ratio: aspectRatio,
response_format: responseFormat,
...native,
}
}
const invalidOutput = (message: string) =>
new AIError({
module: ADAPTER,
method: "generate",
reason: new InvalidProviderOutputReason({ message, route: ADAPTER }),
})
const applyQuery = (url: string, query: Record<string, string> | undefined) => {
if (!query) return url
const next = new URL(url)
Object.entries(query).forEach(([key, value]) => next.searchParams.set(key, value))
return next.toString()
}
export const model = (input: ModelInput) => {
const route: ImageRoute<XAIImageOptions> = {
id: ADAPTER,
generate: Effect.fn("XAIImages.generate")(function* (request: ImageRequestFor<XAIImageOptions>, execute) {
const http = mergeHttpOptions(request.model.http, request.http)
const imageReferences = (request.images ?? []).map((image) => {
if (image.type === "bytes") return { url: ImageInputs.dataUrl(image), type: "image_url" as const }
if (image.type === "url") return { url: image.url, type: "image_url" as const }
if (image.type === "file-id") return { file_id: image.id }
return undefined
})
if (imageReferences.some((image) => image === undefined))
return yield* ImageInputs.invalid(ADAPTER, "xAI Images accepts image URLs, data URLs, bytes, and file IDs")
const requestBody = mergeJsonRecords(
{
model: request.model.id,
prompt: request.prompt,
image: imageReferences.length === 1 ? imageReferences[0] : undefined,
images: imageReferences.length > 1 ? imageReferences : undefined,
},
nativeOptions(request.options),
http?.body,
) as XAIImageBody
const text = ProviderShared.encodeJson(requestBody)
const url = applyQuery(
`${(input.baseURL ?? DEFAULT_BASE_URL).replace(/\/$/, "")}${imageReferences.length === 0 ? PATH : EDIT_PATH}`,
http?.query,
)
const headers = yield* Auth.toEffect(input.auth)({
request,
method: "POST",
url,
body: text,
headers: Headers.fromInput({ ...input.headers, ...http?.headers }),
})
const response = yield* execute(
HttpClientRequest.post(url).pipe(
HttpClientRequest.setHeaders(headers),
HttpClientRequest.bodyText(text, "application/json"),
),
)
const payload = yield* response.json.pipe(
Effect.mapError(() => invalidOutput("Failed to read the xAI Images response")),
)
const decoded = yield* Schema.decodeUnknownEffect(XAIImageResponse)(payload).pipe(
Effect.mapError(() => invalidOutput("xAI Images returned an invalid response")),
)
const images = yield* Effect.forEach(decoded.data, (item, index) => {
const mediaType = item.mime_type ?? "application/octet-stream"
if (item.b64_json)
return Effect.fromResult(Encoding.decodeBase64(item.b64_json)).pipe(
Effect.mapError(() => invalidOutput(`xAI Images result ${index} contains invalid base64 data`)),
Effect.map(
(data) =>
new GeneratedImage({
mediaType,
data,
providerMetadata:
item.revised_prompt === undefined || item.revised_prompt === null
? undefined
: { xai: { revisedPrompt: item.revised_prompt } },
}),
),
)
if (item.url)
return Effect.succeed(
new GeneratedImage({
mediaType,
data: item.url,
providerMetadata:
item.revised_prompt === undefined || item.revised_prompt === null
? undefined
: { xai: { revisedPrompt: item.revised_prompt } },
}),
)
return Effect.fail(invalidOutput(`xAI Images result ${index} has neither image data nor a URL`))
})
if (images.length === 0) return yield* invalidOutput("xAI Images returned no images")
const usage = ProviderShared.isRecord(decoded.usage) ? decoded.usage : undefined
return new ImageResponse({
images,
usage: usage === undefined ? undefined : new Usage({ providerMetadata: { xai: usage } }),
providerMetadata: usage === undefined ? undefined : { xai: { usage } },
})
}),
}
return ImageModel.make<XAIImageOptions>({ id: input.id, provider: "xai", route, http: input.http })
}
export const XAIImages = {
model,
} as const
+132
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import { Effect, Schema } from "effect"
import { Headers, HttpClientRequest } from "effect/unstable/http"
import { GeneratedImage, ImageModel, ImageResponse, type ImageRequestFor, type ImageRoute } from "../image"
import { Auth, type Definition as AuthDefinition } from "../route/auth"
import { InvalidProviderOutputReason, AIError, mergeHttpOptions, mergeJsonRecords, type HttpOptions } from "../schema"
import { ProviderShared } from "./shared"
import { ImageInputs } from "./utils/image-input"
const ADAPTER = "zai-images"
export const DEFAULT_BASE_URL = "https://api.z.ai/api/paas/v4"
export const PATH = "/images/generations"
export type ZAIImageString<Known extends string> = Known | (string & {})
export type ZAIImageOptions = {
readonly size?: ZAIImageString<
"1024x1024" | "768x1344" | "864x1152" | "1344x768" | "1152x864" | "1440x720" | "720x1440"
>
readonly quality?: ZAIImageString<"hd" | "standard">
readonly userID?: string
} & Record<string, unknown>
type ZAIImageBody = Record<string, unknown> & {
readonly model: string
readonly prompt: string
}
const ZAIImageResponse = Schema.Struct({
created: Schema.optional(Schema.Int),
id: Schema.optional(Schema.String),
request_id: Schema.optional(Schema.String),
data: Schema.Array(Schema.Struct({ url: Schema.String })),
content_filter: Schema.optional(
Schema.Array(
Schema.Struct({
role: Schema.optional(Schema.String),
level: Schema.optional(Schema.Number),
}),
),
),
})
export interface ModelInput {
readonly id: string
readonly auth: AuthDefinition
readonly baseURL?: string
readonly headers?: Record<string, string>
readonly http?: HttpOptions
}
const nativeOptions = (options: ZAIImageOptions | undefined) => {
if (!options) return undefined
const { userID, ...native } = options
return {
user_id: userID,
...native,
}
}
const invalidOutput = (message: string) =>
new AIError({
module: ADAPTER,
method: "generate",
reason: new InvalidProviderOutputReason({ message, route: ADAPTER }),
})
const applyQuery = (url: string, query: Record<string, string> | undefined) => {
if (!query) return url
const next = new URL(url)
Object.entries(query).forEach(([key, value]) => next.searchParams.set(key, value))
return next.toString()
}
export const model = (input: ModelInput) => {
const route: ImageRoute<ZAIImageOptions> = {
id: ADAPTER,
generate: Effect.fn("ZAIImages.generate")(function* (request: ImageRequestFor<ZAIImageOptions>, execute) {
if ((request.images?.length ?? 0) > 0)
return yield* ImageInputs.invalid(ADAPTER, "Z.ai hosted image generation does not support image inputs")
const http = mergeHttpOptions(request.model.http, request.http)
const requestBody = mergeJsonRecords(
{ model: request.model.id, prompt: request.prompt },
nativeOptions(request.options),
http?.body,
) as ZAIImageBody
const text = ProviderShared.encodeJson(requestBody)
const url = applyQuery(`${(input.baseURL ?? DEFAULT_BASE_URL).replace(/\/$/, "")}${PATH}`, http?.query)
const headers = yield* Auth.toEffect(input.auth)({
request,
method: "POST",
url,
body: text,
headers: Headers.fromInput({ ...input.headers, ...http?.headers }),
})
const response = yield* execute(
HttpClientRequest.post(url).pipe(
HttpClientRequest.setHeaders(headers),
HttpClientRequest.bodyText(text, "application/json"),
),
)
const payload = yield* response.json.pipe(
Effect.mapError(() => invalidOutput("Failed to read the Z.ai Images response")),
)
const decoded = yield* Schema.decodeUnknownEffect(ZAIImageResponse)(payload).pipe(
Effect.mapError(() => invalidOutput("Z.ai Images returned an invalid response")),
)
if (decoded.data.length === 0) return yield* invalidOutput("Z.ai Images returned no images")
return new ImageResponse({
images: decoded.data.map(
(item) =>
new GeneratedImage({
mediaType: "application/octet-stream",
data: item.url,
}),
),
providerMetadata: {
zai: {
created: decoded.created,
id: decoded.id,
requestID: decoded.request_id,
contentFilter: decoded.content_filter,
},
},
})
}),
}
return ImageModel.make<ZAIImageOptions>({ id: input.id, provider: "zai", route, http: input.http })
}
export const ZAIImages = {
model,
} as const
+163
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import { Option, Schema } from "effect"
import {
AuthenticationReason,
ContentPolicyReason,
InvalidRequestReason,
AIError,
ProviderErrorEvent,
ProviderInternalReason,
QuotaExceededReason,
RateLimitReason,
UnknownProviderReason,
type HttpContext,
type HttpRateLimitDetails,
type ProviderMetadata,
} from "./schema"
const patterns = [
/prompt is too long/i,
/input is too long for requested model/i,
/exceeds the context window/i,
/exceeds (?:the )?(?:model'?s )?maximum context length(?: of [\d,]+ tokens?|\s*\([\d,]+\))/i,
/input token count.*exceeds the maximum/i,
/tokens in request more than max tokens allowed/i,
/maximum prompt length is \d+/i,
/reduce the length of the messages/i,
/maximum context length is \d+ tokens/i,
/exceeds (?:the )?maximum allowed input length of [\d,]+ tokens?/i,
/input \(\d+ tokens\) is longer than the model'?s context length \(\d+ tokens\)/i,
/exceeds the limit of \d+/i,
/exceeds the available context size/i,
/greater than the context length/i,
/context window exceeds limit/i,
/exceeded model token limit/i,
/context[_ ]length[_ ]exceeded/i,
/context length is only \d+ tokens/i,
/input length.*exceeds.*context length/i,
/prompt too long; exceeded (?:max )?context length/i,
/too large for model with \d+ maximum context length/i,
/prompt has [\d,]+ tokens?, but the configured context size is [\d,]+ tokens?/i,
/model_context_window_exceeded/i,
/too many tokens/i,
/token limit exceeded/i,
]
const payloadPatterns = [/request_too_large/i, /request entity too large/i, /payload too large/i, /request too large/i]
const exclusions = [/^(throttling error|service unavailable):/i, /rate limit/i, /too many requests/i]
export const isContextOverflow = (message: string) =>
!exclusions.some((pattern) => pattern.test(message)) &&
(patterns.some((pattern) => pattern.test(message)) || /^400\s*(status code)?\s*\(no body\)/i.test(message))
export const isPayloadTooLarge = (message: string) => payloadPatterns.some((pattern) => pattern.test(message))
export const isContextOverflowFailure = (failure: unknown) =>
failure instanceof AIError
? failure.reason._tag === "InvalidRequest" && failure.reason.classification === "context-overflow"
: Schema.is(ProviderErrorEvent)(failure) && failure.classification === "context-overflow"
const decodeJson = Schema.decodeUnknownOption(Schema.UnknownFromJsonString)
const QUOTA_CODES = new Set(["insufficient_quota", "usage_not_included", "billing_error"])
const SERVER_CODES = new Set([
"api_error",
"internal_error",
"internalserverexception",
"modelstreamerrorexception",
"overloaded_error",
"server_error",
"server_is_overloaded",
"serviceunavailableexception",
])
const INVALID_REQUEST_CODES = new Set(["invalid_prompt", "invalid_request_error", "validationexception"])
const RATE_LIMIT_TEXT = /rate increased too quickly|rate[-_\s]?limit|too[_\s]?many[_\s]?requests/i
const QUOTA_TEXT = /insufficient[-_\s]?quota|quota[-_\s]?exceeded/i
const CONTENT_POLICY_TEXT = /content[-_\s]?policy|content_filter|safety/i
export interface ProviderFailure {
readonly message: string
readonly status?: number | undefined
readonly code?: string | undefined
readonly retryAfterMs?: number | undefined
readonly rateLimit?: HttpRateLimitDetails | undefined
readonly http?: HttpContext | undefined
readonly providerMetadata?: ProviderMetadata | undefined
}
// Keep HTTP failures and provider-reported stream failures on one typed path so
// session retry policy never needs provider-specific string matching.
export function classifyProviderFailure(input: ProviderFailure): AIError["reason"] {
const body = input.http?.body ?? ""
const codes = [input.code, ...providerCodes(body), ...providerCodes(input.message)]
.filter((code): code is string => code !== undefined)
.map((code) => code.toLowerCase())
const text = body || input.message
const common = { message: input.message, providerMetadata: input.providerMetadata, http: input.http }
const clientScoped = input.status === undefined || (input.status >= 400 && input.status < 500)
if (
clientScoped &&
(codes.includes("context_length_exceeded") ||
codes.includes("model_context_window_exceeded") ||
isContextOverflow(text))
)
return new InvalidRequestReason({ ...common, classification: "context-overflow" })
if (input.status === 413 || isPayloadTooLarge(text))
return new InvalidRequestReason({ ...common, classification: "payload-too-large" })
if (CONTENT_POLICY_TEXT.test(text)) return new ContentPolicyReason(common)
if (codes.some((code) => QUOTA_CODES.has(code)) || (input.status === 429 && QUOTA_TEXT.test(text)))
return new QuotaExceededReason(common)
if (input.status === 401) return new AuthenticationReason({ ...common, kind: "invalid" })
if (input.status === 403) return new AuthenticationReason({ ...common, kind: "insufficient-permissions" })
if (codes.includes("authentication_error")) return new AuthenticationReason({ ...common, kind: "invalid" })
if (codes.includes("permission_error"))
return new AuthenticationReason({ ...common, kind: "insufficient-permissions" })
if (
codes.some((code) => code.includes("rate_limit") || code === "too_many_requests" || code === "throttlingexception")
)
return new RateLimitReason({
...common,
retryAfterMs: input.retryAfterMs,
rateLimit: input.rateLimit,
})
if (RATE_LIMIT_TEXT.test(text))
return new RateLimitReason({
...common,
retryAfterMs: input.retryAfterMs,
rateLimit: input.rateLimit,
})
if (codes.some((code) => SERVER_CODES.has(code) || code.includes("exhausted") || code.includes("unavailable")))
return new ProviderInternalReason({
...common,
status: input.status,
retryAfterMs: input.retryAfterMs,
})
if (input.status === 429) {
return new RateLimitReason({
...common,
retryAfterMs: input.retryAfterMs,
rateLimit: input.rateLimit,
})
}
if (input.status === 408 || input.status === 409 || (input.status !== undefined && input.status >= 500))
return new ProviderInternalReason({
...common,
status: input.status,
retryAfterMs: input.retryAfterMs,
})
if (codes.some((code) => INVALID_REQUEST_CODES.has(code))) return new InvalidRequestReason(common)
if (input.status === 400 || input.status === 404 || input.status === 413 || input.status === 422)
return new InvalidRequestReason(common)
return new UnknownProviderReason({ ...common, status: input.status })
}
function providerCodes(value: string) {
const decoded = Option.getOrUndefined(decodeJson(value))
if (!isRecord(decoded)) return []
const error = isRecord(decoded.error) ? decoded.error : undefined
return [decoded.code, error?.code, error?.type].filter((value): value is string => typeof value === "string")
}
function isRecord(value: unknown): value is Record<string, unknown> {
return typeof value === "object" && value !== null
}
+21
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@@ -0,0 +1,21 @@
import type { LanguageModel, ProviderOptions } from "./schema"
export interface Settings extends Readonly<Record<string, unknown>> {
readonly baseURL?: string
readonly headers?: Readonly<Record<string, string>>
readonly body?: Readonly<Record<string, unknown>>
readonly limits?: {
readonly context: number
readonly input?: number
readonly output: number
}
}
export interface Definition<
ProviderSettings extends Settings = Settings,
Options extends ProviderOptions = ProviderOptions,
> {
readonly model: (modelID: string, settings: ProviderSettings) => LanguageModel<Options>
}
export * as ProviderPackage from "./provider-package"
+36
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@@ -0,0 +1,36 @@
import type { LanguageModel, ModelID, ProviderID } from "./schema"
export type LanguageModelOptions = Pick<LanguageModel.Input, "defaults" | "compatibility">
/**
* Advanced structural provider definition helper. Built-in providers should
* prefer explicit `configure(options).model(id)` facades so deployment config is
* chosen before model selection. The optional `apis` map remains for external
* structural providers that expose multiple route selectors behind one provider.
*/
export type LanguageModelFactory<Options extends LanguageModelOptions = LanguageModelOptions> = (
id: string | ModelID,
options?: Options,
) => LanguageModel
type AnyLanguageModelFactory = (...args: never[]) => LanguageModel
export interface Definition<Factory extends AnyLanguageModelFactory = LanguageModelFactory> {
readonly id: ProviderID
readonly model: Factory
readonly apis?: Record<string, AnyLanguageModelFactory>
}
type DefinitionShape = {
readonly id: ProviderID
readonly model: (...args: never[]) => LanguageModel
readonly apis?: Record<string, (...args: never[]) => LanguageModel>
}
type NoExtraFields<Input, Shape> = Input & Record<Exclude<keyof Input, keyof Shape>, never>
export const make = <DefinitionType extends DefinitionShape>(
definition: NoExtraFields<DefinitionType, DefinitionShape>,
) => definition
export * as Provider from "./provider"
+1
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@@ -0,0 +1 @@
export * from "./providers/index"
@@ -0,0 +1,107 @@
import { Auth } from "../route/auth"
import type { Route as RouteDef, RouteDefaultsInput } from "../route/client"
import type { ProviderPackage } from "../provider-package"
import { OpenAIChat } from "../protocols/openai-chat"
import { OpenAIResponses } from "../protocols/openai-responses"
import { BedrockAuth, type Credentials } from "../protocols/utils/bedrock-auth"
import { ProviderID, type ModelID } from "../schema"
import { withOpenAIOptions, type OpenAIProviderOptionsInput } from "./openai-options"
export const id = ProviderID.make("amazon-bedrock")
export type Config = RouteDefaultsInput & {
readonly apiKey?: string
readonly baseURL?: string
readonly credentials?: Credentials
readonly region?: string
readonly providerOptions?: OpenAIProviderOptionsInput
}
export interface Settings extends ProviderPackage.Settings {
readonly apiKey?: string
readonly auth?: "bearer" | "sigv4"
readonly baseURL?: string
readonly credentials?: Credentials
readonly region?: string
readonly providerOptions?: OpenAIProviderOptionsInput
}
const responsesRoute = OpenAIResponses.route.with({
id: "bedrock-mantle-responses",
provider: id,
})
const chatRoute = OpenAIChat.route.with({
id: "bedrock-mantle-chat",
provider: id,
})
export const routes = [responsesRoute, chatRoute]
const configuredRoute = <Body, Prepared>(route: RouteDef<Body, Prepared>, input: Config) => {
const region = input.region ?? input.credentials?.region ?? "us-east-1"
const credentials = input.credentials === undefined ? undefined : { ...input.credentials, region }
return route.with({
endpoint: { baseURL: input.baseURL ?? `https://bedrock-mantle.${region}.api.aws/v1` },
auth:
input.apiKey === undefined
? BedrockAuth.sigV4(credentials, { service: "bedrock-mantle", name: "Bedrock Mantle" })
: Auth.bearer(input.apiKey),
})
}
const defaults = (input: Config) => {
const { apiKey: _, baseURL: _baseURL, credentials: _credentials, region: _region, ...rest } = input
return rest
}
export const configure = (input: Config = {}) => {
const configuredResponsesRoute = configuredRoute(responsesRoute, input)
const configuredChatRoute = configuredRoute(chatRoute, input)
const modelDefaults = defaults(input)
const responses = (modelID: string | ModelID) =>
configuredResponsesRoute
.with(withOpenAIOptions(modelID, modelDefaults))
.model<OpenAIProviderOptionsInput>({ id: modelID })
const chat = (modelID: string | ModelID) =>
configuredChatRoute
.with(withOpenAIOptions(modelID, modelDefaults))
.model<OpenAIProviderOptionsInput>({ id: modelID })
return {
id,
model: chat,
chat,
responses,
configure,
}
}
export const provider = configure()
const config = (settings: Settings): Config => {
if (settings.auth === "bearer" && settings.apiKey === undefined)
throw new Error("Amazon Bedrock Mantle bearer auth requires apiKey")
if (settings.auth === "sigv4" && settings.apiKey !== undefined)
throw new Error("Amazon Bedrock Mantle SigV4 auth does not accept apiKey")
return {
apiKey: settings.auth === "sigv4" ? undefined : settings.apiKey,
baseURL: settings.baseURL,
credentials: settings.credentials,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
providerOptions: settings.providerOptions,
region: settings.region,
}
}
export const chatModel: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (
modelID,
settings,
) => configure(config(settings)).chat(modelID)
export const responsesModel: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (
modelID,
settings,
) => configure(config(settings)).responses(modelID)
export const model = chatModel
@@ -0,0 +1,68 @@
import type { RouteDefaultsInput } from "../route/client"
import { Auth } from "../route/auth"
import type { ProviderPackage } from "../provider-package"
import { ProviderID, type ModelID } from "../schema"
import * as BedrockConverse from "../protocols/bedrock-converse"
import type { BedrockCredentials } from "../protocols/bedrock-converse"
export const id = ProviderID.make("amazon-bedrock")
export type Config = RouteDefaultsInput & {
readonly apiKey?: string
readonly headers?: Record<string, string>
readonly credentials?: BedrockCredentials
/** AWS region. Defaults to `us-east-1` when neither this nor `credentials.region` is set. */
readonly region?: string
/** Override the computed `https://bedrock-runtime.<region>.amazonaws.com` URL. */
readonly baseURL?: string
}
export interface Settings extends ProviderPackage.Settings {
readonly apiKey?: string
readonly auth?: "bearer" | "sigv4"
readonly baseURL?: string
readonly credentials?: BedrockCredentials
readonly region?: string
readonly topP?: number
}
export const routes = [BedrockConverse.route]
const bedrockBaseURL = (region: string) => `https://bedrock-runtime.${region}.amazonaws.com`
const configuredRoute = (input: Config) => {
const { apiKey, credentials, region, baseURL, ...rest } = input
const resolvedRegion = region ?? credentials?.region ?? "us-east-1"
return BedrockConverse.route.with({
...rest,
provider: id,
endpoint: { baseURL: baseURL ?? bedrockBaseURL(resolvedRegion) },
auth: apiKey === undefined ? BedrockConverse.sigV4Auth(credentials) : Auth.bearer(apiKey),
})
}
export const configure = (input: Config = {}) => {
const route = configuredRoute(input)
return {
id,
model: (modelID: string | ModelID) => route.model({ id: modelID }),
configure,
}
}
export const provider = configure()
export const model: ProviderPackage.Definition<Settings>["model"] = (modelID, settings) => {
if (settings.auth === "bearer" && settings.apiKey === undefined)
throw new Error("Amazon Bedrock bearer auth requires apiKey")
if (settings.auth === "sigv4" && settings.apiKey !== undefined)
throw new Error("Amazon Bedrock SigV4 auth does not accept apiKey")
return configure({
apiKey: settings.auth === "sigv4" ? undefined : settings.apiKey,
baseURL: settings.baseURL,
credentials: settings.credentials,
generation: settings.topP === undefined ? undefined : { topP: settings.topP },
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
region: settings.region,
}).model(modelID)
}
@@ -0,0 +1,2 @@
export { chatModel as model } from "../amazon-bedrock-mantle"
export type { Settings } from "../amazon-bedrock-mantle"
@@ -0,0 +1,2 @@
export { chatModel as model } from "../../amazon-bedrock-mantle"
export type { Settings } from "../../amazon-bedrock-mantle"
@@ -0,0 +1,2 @@
export { responsesModel as model } from "../../amazon-bedrock-mantle"
export type { Settings } from "../../amazon-bedrock-mantle"
@@ -0,0 +1,77 @@
import type { ProviderPackage } from "../provider-package"
import { AnthropicMessages } from "../protocols/anthropic-messages"
import { Auth } from "../route/auth"
import type { ProviderAuthOption } from "../route/auth-options"
import type { RouteDefaultsInput } from "../route/client"
import { ProviderID, type ModelID } from "../schema"
export type AnthropicOptionsInput = AnthropicMessages.OptionsInput
export type AnthropicProviderOptionsInput = AnthropicMessages.ProviderOptionsInput
export type AnthropicThinkingInput = AnthropicMessages.ThinkingInput
export const id = ProviderID.make("anthropic-compatible")
export type Config = RouteDefaultsInput &
ProviderAuthOption<"optional"> & {
readonly provider?: string
readonly baseURL: string
readonly providerOptions?: AnthropicMessages.ProviderOptionsInput
}
export type Settings = ProviderPackage.Settings &
(
| { readonly apiKey?: string; readonly authToken?: never }
| { readonly apiKey?: never; readonly authToken?: string }
) & {
readonly baseURL: string
readonly provider?: string
readonly providerOptions?: AnthropicMessages.ProviderOptionsInput
}
export const routes = [AnthropicMessages.route]
const auth = (input: ProviderAuthOption<"optional">) => {
if ("auth" in input && input.auth) return input.auth
return Auth.optional("apiKey" in input ? input.apiKey : undefined, "apiKey").pipe(Auth.header("x-api-key"))
}
export const configure = (input: Config) => {
if (!input.baseURL) throw new Error("Anthropic-compatible providers require a baseURL")
const provider = input.provider ?? "anthropic-compatible"
const { provider: _, baseURL, apiKey: _apiKey, auth: _auth, ...rest } = input
const route = AnthropicMessages.route.with({
...rest,
provider,
endpoint: { baseURL },
auth: auth(input),
})
return {
id: ProviderID.make(provider),
model: (modelID: string | ModelID) => route.model<AnthropicMessages.ProviderOptionsInput>({ id: modelID }),
configure,
}
}
export const provider = {
id,
configure,
}
export const model: ProviderPackage.Definition<Settings, AnthropicMessages.ProviderOptionsInput>["model"] = (
modelID,
settings,
) => {
if (settings.apiKey !== undefined && settings.authToken !== undefined)
throw new Error("Anthropic-compatible apiKey cannot be combined with authToken")
return configure({
...(settings.authToken === undefined ? { apiKey: settings.apiKey } : { auth: Auth.bearer(settings.authToken) }),
baseURL: settings.baseURL,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
provider: settings.provider,
providerOptions: settings.providerOptions,
}).model(modelID)
}
export * as AnthropicCompatible from "./anthropic-compatible"
+69
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@@ -0,0 +1,69 @@
import type { RouteDefaultsInput } from "../route/client"
import { Auth } from "../route/auth"
import type { ProviderAuthOption } from "../route/auth-options"
import type { ProviderPackage } from "../provider-package"
import { ProviderID, type ModelID } from "../schema"
import { AnthropicMessages } from "../protocols/anthropic-messages"
import { AnthropicCompatible } from "./anthropic-compatible"
export type AnthropicOptionsInput = AnthropicMessages.OptionsInput
export type AnthropicProviderOptionsInput = AnthropicMessages.ProviderOptionsInput
export type AnthropicThinkingInput = AnthropicMessages.ThinkingInput
export const id = ProviderID.make("anthropic")
export const routes = [AnthropicMessages.route]
export type Config = RouteDefaultsInput &
ProviderAuthOption<"optional"> & {
readonly baseURL?: string
readonly providerOptions?: AnthropicMessages.ProviderOptionsInput
}
export type Settings = ProviderPackage.Settings &
(
| { readonly apiKey?: string; readonly authToken?: never }
| { readonly apiKey?: never; readonly authToken?: string }
) & {
readonly baseURL?: string
readonly providerOptions?: AnthropicMessages.ProviderOptionsInput
}
const auth = (options: ProviderAuthOption<"optional">) => {
if ("auth" in options && options.auth) return options.auth
return Auth.optional("apiKey" in options ? options.apiKey : undefined, "apiKey")
.orElse(Auth.config("ANTHROPIC_API_KEY"))
.pipe(Auth.header("x-api-key"))
}
export const configure = (input: Config = {}) => {
const { apiKey: _, auth: _auth, baseURL, ...rest } = input
const compatible = AnthropicCompatible.configure({
...rest,
auth: auth(input),
baseURL: baseURL ?? AnthropicMessages.DEFAULT_BASE_URL,
provider: id,
})
return {
id,
model: (modelID: string | ModelID) => compatible.model(modelID),
configure,
}
}
export const provider = configure()
export const model: ProviderPackage.Definition<Settings, AnthropicMessages.ProviderOptionsInput>["model"] = (
modelID,
settings,
) => {
if (settings.apiKey !== undefined && settings.authToken !== undefined)
throw new Error("Anthropic apiKey cannot be combined with authToken")
return configure({
...(settings.authToken === undefined ? { apiKey: settings.apiKey } : { auth: Auth.bearer(settings.authToken) }),
baseURL: settings.baseURL,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
providerOptions: settings.providerOptions,
}).model(modelID)
}
+147
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@@ -0,0 +1,147 @@
import { Auth } from "../route/auth"
import { type AtLeastOne, type ProviderAuthOption } from "../route/auth-options"
import type { Route as RouteDef, RouteDefaultsInput } from "../route/client"
import type { ProviderPackage } from "../provider-package"
import { ProviderID, type ModelID } from "../schema"
import * as OpenAIChat from "../protocols/openai-chat"
import * as OpenAIResponses from "../protocols/openai-responses"
import { ProviderShared } from "../protocols/shared"
import { withOpenAIOptions, type OpenAIProviderOptionsInput } from "./openai-options"
export const id = ProviderID.make("azure")
const routeAuth = Auth.remove("authorization")
// Azure needs the customer's resource URL; supply either `resourceName`
// (helper builds the URL) or `baseURL` directly.
type AzureURL = AtLeastOne<{ readonly resourceName: string; readonly baseURL: string }>
export type LanguageModelOptions = AzureURL &
RouteDefaultsInput &
ProviderAuthOption<"optional"> & {
readonly apiVersion?: string
readonly queryParams?: Record<string, string>
readonly useDeploymentBasedUrls?: boolean
readonly providerOptions?: OpenAIProviderOptionsInput
}
export type Config = LanguageModelOptions
export type Settings = ProviderPackage.Settings &
AzureURL & {
readonly apiKey?: string
readonly apiVersion?: string
readonly queryParams?: Readonly<Record<string, string>>
readonly useDeploymentBasedUrls?: boolean
readonly providerOptions?: OpenAIProviderOptionsInput
}
const resourceBaseURL = (resourceName: string) => `https://${resourceName.trim()}.openai.azure.com/openai`
const responsesRoute = OpenAIResponses.route.with({
id: "azure-openai-responses",
provider: id,
auth: routeAuth,
})
const chatRoute = OpenAIChat.route.with({
id: "azure-openai-chat",
provider: id,
auth: routeAuth,
})
export const routes = [responsesRoute, chatRoute]
const defaults = (input: Config) => {
const {
apiKey: _,
apiVersion: _apiVersion,
resourceName: _resourceName,
useDeploymentBasedUrls: _useDeploymentBasedUrls,
baseURL: _baseURL,
queryParams: _queryParams,
...rest
} = input
if ("auth" in rest) {
const { auth: _, ...withoutAuth } = rest
return withoutAuth
}
return rest
}
const auth = (input: Config) => {
if ("auth" in input && input.auth) return input.auth
return Auth.remove("authorization").andThen(
Auth.optional("apiKey" in input ? input.apiKey : undefined, "apiKey")
.orElse(Auth.config("AZURE_OPENAI_API_KEY"))
.pipe(Auth.header("api-key")),
)
}
const configuredRoute = <Body, Prepared>(route: RouteDef<Body, Prepared>, input: Config, modelID: string | ModelID) =>
route.with({
auth: auth(input),
endpoint: endpoint(input, modelID),
})
function endpoint(input: Config, modelID: string | ModelID) {
const baseURL = ProviderShared.trimBaseUrl(input.baseURL ?? resourceBaseURL(input.resourceName!))
const query = { "api-version": input.apiVersion ?? "v1", ...input.queryParams }
if (input.useDeploymentBasedUrls) return { baseURL: `${baseURL}/deployments/${modelID}`, query }
if (input.baseURL !== undefined && !new URL(input.baseURL).hostname.endsWith(".openai.azure.com")) {
return { baseURL, query: input.queryParams }
}
return { baseURL: `${baseURL}/v1`, query }
}
export const configure = (input: Config) => {
const modelDefaults = defaults(input)
const responses = (modelID: string | ModelID) =>
configuredRoute(responsesRoute, input, modelID)
.with(withOpenAIOptions(modelID, modelDefaults))
.model<OpenAIProviderOptionsInput>({ id: modelID })
const chat = (modelID: string | ModelID) =>
configuredRoute(chatRoute, input, modelID)
.with(withOpenAIOptions(modelID, modelDefaults))
.model<OpenAIProviderOptionsInput>({ id: modelID })
return {
id,
model: responses,
responses,
chat,
configure,
}
}
export const provider = {
id,
configure,
}
const config = (settings: Settings): Config => {
const common = {
apiKey: settings.apiKey,
apiVersion: settings.apiVersion,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
providerOptions: settings.providerOptions,
queryParams: settings.queryParams === undefined ? undefined : { ...settings.queryParams },
useDeploymentBasedUrls: settings.useDeploymentBasedUrls,
}
if (settings.baseURL !== undefined) return { ...common, baseURL: settings.baseURL }
if (settings.resourceName !== undefined) return { ...common, resourceName: settings.resourceName }
throw new Error("Azure requires resourceName or baseURL")
}
export const responsesModel: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (
modelID,
settings,
) => configure(config(settings)).responses(modelID)
export const chatModel: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (
modelID,
settings,
) => configure(config(settings)).chat(modelID)
export const model = responsesModel
+2
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@@ -0,0 +1,2 @@
export { chatModel as model } from "../azure"
export type { Settings } from "../azure"
@@ -0,0 +1,2 @@
export { responsesModel as model } from "../azure"
export type { Settings } from "../azure"
+133
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@@ -0,0 +1,133 @@
import type { Config, Redacted } from "effect"
import * as OpenAICompatibleChat from "../protocols/openai-compatible-chat"
import { Auth } from "../route/auth"
import { AuthOptions, type AtLeastOne, type ProviderAuthOption } from "../route/auth-options"
import type { RouteDefaultsInput } from "../route/client"
import { ProviderID, type ModelID } from "../schema"
import type { OpenAIProviderOptionsInput } from "./openai-options"
export const aiGatewayID = ProviderID.make("cloudflare-ai-gateway")
export const workersAIID = ProviderID.make("cloudflare-workers-ai")
export const aiGatewayAuthEnvVars = ["CLOUDFLARE_API_TOKEN", "CF_AIG_TOKEN"] as const
export const workersAIAuthEnvVars = ["CLOUDFLARE_API_KEY", "CLOUDFLARE_WORKERS_AI_TOKEN"] as const
type CloudflareSecret = string | Redacted.Redacted | Config.Config<string | Redacted.Redacted>
type GatewayURL = AtLeastOne<{
readonly accountId: string
readonly baseURL: string
}> & {
readonly gatewayId?: string
}
export type AIGatewayOptions = GatewayURL &
Omit<RouteDefaultsInput, "providerOptions"> &
ProviderAuthOption<"optional"> & {
/** Cloudflare AI Gateway authentication token. Sent as `cf-aig-authorization`. */
readonly gatewayApiKey?: CloudflareSecret
readonly providerOptions?: OpenAIProviderOptionsInput
}
type WorkersAIURL = AtLeastOne<{
readonly accountId: string
readonly baseURL: string
}>
export type WorkersAIOptions = WorkersAIURL &
Omit<RouteDefaultsInput, "providerOptions"> &
ProviderAuthOption<"optional"> & {
readonly providerOptions?: OpenAIProviderOptionsInput
}
export const aiGatewayBaseURL = (input: GatewayURL) => {
if (input.baseURL) return input.baseURL
if (!input.accountId) throw new Error("CloudflareAIGateway.configure requires accountId unless baseURL is supplied")
return `https://gateway.ai.cloudflare.com/v1/${encodeURIComponent(input.accountId)}/${encodeURIComponent(input.gatewayId?.trim() || "default")}/compat`
}
const aiGatewayAuth = (input: AIGatewayOptions) => {
if ("auth" in input && input.auth) return input.auth
const gateway = Auth.optional(input.gatewayApiKey, "gatewayApiKey")
.orElse(Auth.config("CLOUDFLARE_API_TOKEN"))
.orElse(Auth.config("CF_AIG_TOKEN"))
.pipe(Auth.bearerHeader("cf-aig-authorization"))
if (!("apiKey" in input) || input.apiKey === undefined) return gateway
if (input.gatewayApiKey === undefined) return Auth.bearer(input.apiKey)
return Auth.bearerHeader("cf-aig-authorization", input.gatewayApiKey).andThen(Auth.bearer(input.apiKey))
}
export const workersAIBaseURL = (input: WorkersAIURL) => {
if (input.baseURL) return input.baseURL
if (!input.accountId) throw new Error("CloudflareWorkersAI.configure requires accountId unless baseURL is supplied")
return `https://api.cloudflare.com/client/v4/accounts/${encodeURIComponent(input.accountId)}/ai/v1`
}
const workersAIAuth = (input: WorkersAIOptions) => {
return AuthOptions.bearer(input, workersAIAuthEnvVars)
}
export const aiGatewayRoute = OpenAICompatibleChat.route.with({
id: "cloudflare-ai-gateway",
provider: aiGatewayID,
})
export const workersAIRoute = OpenAICompatibleChat.route.with({
id: "cloudflare-workers-ai",
provider: workersAIID,
})
export const routes = [aiGatewayRoute, workersAIRoute]
const aiGatewayDefaults = (options: AIGatewayOptions) => {
const {
accountId: _accountId,
gatewayId: _gatewayId,
apiKey: _apiKey,
gatewayApiKey: _gatewayApiKey,
baseURL: _baseURL,
auth: _auth,
...rest
} = options
return rest
}
const workersAIDefaults = (options: WorkersAIOptions) => {
const { accountId: _accountId, apiKey: _apiKey, auth: _auth, baseURL: _baseURL, ...rest } = options
return rest
}
const configureAIGateway = (options: AIGatewayOptions) => {
const route = aiGatewayRoute.with({
...aiGatewayDefaults(options),
endpoint: { baseURL: aiGatewayBaseURL(options) },
auth: aiGatewayAuth(options),
})
return {
id: aiGatewayID,
model: (modelID: string | ModelID) => route.model<OpenAIProviderOptionsInput>({ id: modelID }),
configure: configureAIGateway,
}
}
const configureWorkersAI = (options: WorkersAIOptions) => {
const route = workersAIRoute.with({
...workersAIDefaults(options),
endpoint: { baseURL: workersAIBaseURL(options) },
auth: workersAIAuth(options),
})
return {
id: workersAIID,
model: (modelID: string | ModelID) => route.model<OpenAIProviderOptionsInput>({ id: modelID }),
configure: configureWorkersAI,
}
}
export const CloudflareAIGateway = {
id: aiGatewayID,
configure: configureAIGateway,
}
export const CloudflareWorkersAI = {
id: workersAIID,
configure: configureWorkersAI,
}
@@ -9,14 +9,14 @@ export const id = ProviderID.make("github-copilot")
// GitHub Copilot has no canonical public URL — callers (opencode, etc.) must
// supply `baseURL` explicitly.
export type ModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
export type LanguageModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
ProviderAuthOption<"optional"> & {
readonly baseURL: string
readonly endpoint?: "chat" | "responses"
readonly providerOptions?: OpenAIProviderOptionsInput
}
export const shouldUseResponsesApi = (modelID: string | ModelID, endpoint?: ModelOptions["endpoint"]) => {
export const shouldUseResponsesApi = (modelID: string | ModelID, endpoint?: LanguageModelOptions["endpoint"]) => {
if (endpoint) return endpoint === "responses"
const model = String(modelID)
const match = /^gpt-(\d+)/.exec(model)
@@ -29,30 +29,32 @@ export const routes = [OpenAIResponses.route, OpenAIChat.route]
const chatRoute = OpenAIChat.route.with({ provider: id })
const responsesRoute = OpenAIResponses.route.with({ provider: id })
const defaults = (options: ModelOptions) => {
const defaults = (options: LanguageModelOptions) => {
const { apiKey: _, auth: _auth, baseURL: _baseURL, endpoint: _endpoint, ...rest } = options
return rest
}
const configuredResponsesRoute = (options: ModelOptions) =>
const configuredResponsesRoute = (options: LanguageModelOptions) =>
responsesRoute.with({
endpoint: { baseURL: options.baseURL },
auth: AuthOptions.bearer(options, []),
})
const configuredChatRoute = (options: ModelOptions) =>
const configuredChatRoute = (options: LanguageModelOptions) =>
chatRoute.with({
endpoint: { baseURL: options.baseURL },
auth: AuthOptions.bearer(options, []),
})
export const configure = (options: ModelOptions) => {
export const configure = (options: LanguageModelOptions) => {
const responsesRoute = configuredResponsesRoute(options)
const chatRoute = configuredChatRoute(options)
const responses = (modelID: string | ModelID) =>
responsesRoute.with(withOpenAIOptions(modelID, defaults(options))).model({ id: modelID })
responsesRoute
.with(withOpenAIOptions(modelID, defaults(options)))
.model<OpenAIProviderOptionsInput>({ id: modelID })
const chat = (modelID: string | ModelID) =>
chatRoute.with(withOpenAIOptions(modelID, defaults(options))).model({ id: modelID })
chatRoute.with(withOpenAIOptions(modelID, defaults(options))).model<OpenAIProviderOptionsInput>({ id: modelID })
return {
id,
model: (modelID: string | ModelID) =>
@@ -0,0 +1,83 @@
import type { ProviderPackage } from "../provider-package"
import { OpenAICompatibleChat } from "../protocols/openai-compatible-chat"
import type { RouteDefaultsInput } from "../route/client"
import { ProviderID, type ModelID } from "../schema"
import { GoogleVertexShared } from "./google-vertex-shared"
import type { OpenAIProviderOptionsInput } from "./openai-options"
export const id = ProviderID.make("google-vertex")
export type Config = RouteDefaultsInput &
GoogleVertexShared.OAuthOptions & {
readonly baseURL?: string
readonly location?: string
readonly project?: string
readonly providerOptions?: OpenAIProviderOptionsInput
}
export interface Settings extends ProviderPackage.Settings {
readonly accessToken?: string
readonly apiKey?: never
readonly baseURL?: string
readonly location?: string
readonly project?: string
readonly providerOptions?: OpenAIProviderOptionsInput
}
const route = OpenAICompatibleChat.route.with({
id: "google-vertex-chat",
provider: id,
})
export const routes = [route]
const configuredRoute = (input: Config) => {
if ("apiKey" in input && input.apiKey !== undefined) throw new Error("Google Vertex Chat does not support API keys")
const {
accessToken: _accessToken,
auth: _auth,
baseURL,
location: inputLocation,
project: inputProject,
...rest
} = input
const location = GoogleVertexShared.location(inputLocation, "global")
const project = GoogleVertexShared.project(inputProject)
return route.with({
...rest,
endpoint: {
baseURL:
baseURL ??
`https://aiplatform.googleapis.com/v1/projects/${GoogleVertexShared.requireProject(project)}/locations/${location}/endpoints/openapi`,
},
auth: GoogleVertexShared.oauth(input, project),
})
}
export const configure = (input: Config = {}) => {
const route = configuredRoute(input)
return {
id,
model: (modelID: string | ModelID) => route.model<OpenAIProviderOptionsInput>({ id: modelID }),
configure,
}
}
export const provider = {
id,
configure,
}
export const model: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (modelID, settings) => {
if (settings.apiKey !== undefined) throw new Error("Google Vertex Chat does not support API keys")
return configure({
accessToken: settings.accessToken,
baseURL: settings.baseURL,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
location: settings.location,
project: settings.project,
providerOptions: settings.providerOptions,
}).model(modelID)
}
@@ -0,0 +1,118 @@
import { Effect, Schema, Struct } from "effect"
import type { ProviderPackage } from "../provider-package"
import { AnthropicMessages } from "../protocols/anthropic-messages"
import { Auth } from "../route/auth"
import { Route, type RouteDefaultsInput } from "../route/client"
import { Endpoint } from "../route/endpoint"
import { Framing } from "../route/framing"
import { Protocol } from "../route/protocol"
import { ProviderID, type ModelID } from "../schema"
import { GoogleVertexShared } from "./google-vertex-shared"
export type AnthropicOptionsInput = AnthropicMessages.OptionsInput
export type AnthropicProviderOptionsInput = AnthropicMessages.ProviderOptionsInput
export type AnthropicThinkingInput = AnthropicMessages.ThinkingInput
const VERSION = "vertex-2023-10-16" as const
export const id = ProviderID.make("google-vertex")
export type Config = RouteDefaultsInput &
GoogleVertexShared.OAuthOptions & {
readonly baseURL?: string
readonly location?: string
readonly project?: string
readonly providerOptions?: AnthropicMessages.ProviderOptionsInput
}
export interface Settings extends ProviderPackage.Settings {
readonly accessToken?: string
readonly apiKey?: never
readonly baseURL?: string
readonly location?: string
readonly project?: string
readonly providerOptions?: AnthropicMessages.ProviderOptionsInput
}
const route = Route.make({
id: "google-vertex-messages",
provider: id,
providerMetadataKey: "anthropic",
protocol: Protocol.make({
id: AnthropicMessages.protocol.id,
body: {
schema: Schema.Struct({
...Struct.omit(AnthropicMessages.AnthropicMessagesBody.fields, ["model"]),
anthropic_version: Schema.Literal(VERSION),
}),
from: (request) =>
AnthropicMessages.protocol.body.from(request).pipe(
Effect.map((body) => ({
...Struct.omit(body, ["model"]),
anthropic_version: VERSION,
})),
),
},
stream: AnthropicMessages.protocol.stream,
}),
endpoint: Endpoint.path(({ request }) => `/${request.model.id}:streamRawPredict`),
auth: Auth.none,
framing: Framing.sse,
})
export const routes = [route]
const configuredRoute = (input: Config) => {
if ("apiKey" in input && input.apiKey !== undefined)
throw new Error("Google Vertex Messages does not support API keys")
const {
accessToken: _accessToken,
auth: _auth,
baseURL,
location: inputLocation,
project: inputProject,
...rest
} = input
const location = GoogleVertexShared.location(inputLocation, "global")
const project = GoogleVertexShared.project(inputProject)
return route.with({
...rest,
endpoint: {
baseURL:
baseURL ??
`https://${GoogleVertexShared.host(location)}/v1/projects/${GoogleVertexShared.requireProject(project)}/locations/${location}/publishers/anthropic/models`,
},
auth: GoogleVertexShared.oauth(input, project),
})
}
export const configure = (input: Config = {}) => {
const route = configuredRoute(input)
return {
id,
model: (modelID: string | ModelID) => route.model<AnthropicMessages.ProviderOptionsInput>({ id: modelID }),
configure,
}
}
export const provider = {
id,
configure,
}
export const model: ProviderPackage.Definition<Settings, AnthropicMessages.ProviderOptionsInput>["model"] = (
modelID,
settings,
) => {
if (settings.apiKey !== undefined) throw new Error("Google Vertex Messages does not support API keys")
return configure({
accessToken: settings.accessToken,
baseURL: settings.baseURL,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
location: settings.location,
project: settings.project,
providerOptions: settings.providerOptions,
}).model(modelID)
}
@@ -0,0 +1,88 @@
import type { ProviderPackage } from "../provider-package"
import { OpenAICompatibleResponses } from "../protocols/openai-compatible-responses"
import type { RouteDefaultsInput } from "../route/client"
import { ProviderID, type ModelID } from "../schema"
import { GoogleVertexShared } from "./google-vertex-shared"
import type { OpenResponsesProviderOptionsInput } from "./open-responses-options"
export const id = ProviderID.make("google-vertex")
export type Config = RouteDefaultsInput &
GoogleVertexShared.OAuthOptions & {
readonly baseURL?: string
readonly location?: string
readonly project?: string
readonly providerOptions?: OpenResponsesProviderOptionsInput
}
export interface Settings extends ProviderPackage.Settings {
readonly accessToken?: string
readonly apiKey?: never
readonly baseURL?: string
readonly location?: string
readonly project?: string
readonly providerOptions?: OpenResponsesProviderOptionsInput
}
const route = OpenAICompatibleResponses.route.with({
id: "google-vertex-responses",
provider: id,
providerOptions: { openresponses: { store: false } },
})
export const routes = [route]
const configuredRoute = (input: Config) => {
if ("apiKey" in input && input.apiKey !== undefined)
throw new Error("Google Vertex Responses does not support API keys")
const {
accessToken: _accessToken,
auth: _auth,
baseURL,
location: inputLocation,
project: inputProject,
...rest
} = input
const location = GoogleVertexShared.location(inputLocation, "global")
const project = GoogleVertexShared.project(inputProject)
return route.with({
...rest,
endpoint: {
baseURL:
baseURL ??
`https://aiplatform.googleapis.com/v1/projects/${GoogleVertexShared.requireProject(project)}/locations/${location}/endpoints/openapi`,
},
auth: GoogleVertexShared.oauth(input, project),
})
}
export const configure = (input: Config = {}) => {
const route = configuredRoute(input)
return {
id,
model: (modelID: string | ModelID) => route.model<OpenResponsesProviderOptionsInput>({ id: modelID }),
configure,
}
}
export const provider = {
id,
configure,
}
export const model: ProviderPackage.Definition<Settings, OpenResponsesProviderOptionsInput>["model"] = (
modelID,
settings,
) => {
if (settings.apiKey !== undefined) throw new Error("Google Vertex Responses does not support API keys")
return configure({
accessToken: settings.accessToken,
baseURL: settings.baseURL,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
location: settings.location,
project: settings.project,
providerOptions: settings.providerOptions,
}).model(modelID)
}
@@ -0,0 +1,77 @@
import type { AnyAuthClient } from "google-auth-library"
import { Effect, Redacted } from "effect"
import { Auth, MissingCredentialError } from "../route/auth"
const SCOPE = "https://www.googleapis.com/auth/cloud-platform"
export type OAuthOptions =
| { readonly accessToken?: string; readonly auth?: never }
| { readonly accessToken?: never; readonly auth?: Auth.Definition }
export type ApiKeyOptions =
| (OAuthOptions & { readonly apiKey?: never })
| { readonly accessToken?: never; readonly apiKey?: string; readonly auth?: never }
export const project = (value?: string) =>
value ??
process.env.GOOGLE_VERTEX_PROJECT ??
process.env.GOOGLE_CLOUD_PROJECT ??
process.env.GCP_PROJECT ??
process.env.GCLOUD_PROJECT
export const location = (value: string | undefined, fallback: string) =>
value ??
process.env.GOOGLE_VERTEX_LOCATION ??
process.env.GOOGLE_CLOUD_LOCATION ??
process.env.VERTEX_LOCATION ??
fallback
export const host = (location: string) => {
if (location === "global") return "aiplatform.googleapis.com"
// Jurisdictional multi-regions use Regional Endpoint Platform domains.
if (location === "eu" || location === "us") return `aiplatform.${location}.rep.googleapis.com`
return `${location}-aiplatform.googleapis.com`
}
export const requireProject = (value: string | undefined) => {
if (value) return value
throw new Error("Google Vertex requires a project when baseURL is not configured")
}
export const apiKey = (input: ApiKeyOptions) => {
if (input.apiKey !== undefined && (input.accessToken !== undefined || input.auth !== undefined))
throw new Error("Google Vertex apiKey cannot be combined with accessToken or auth")
if (input.accessToken !== undefined || input.auth !== undefined) return undefined
return input.apiKey ?? process.env.GOOGLE_VERTEX_API_KEY
}
const adc = (project?: string) => {
let client: Promise<AnyAuthClient> | undefined
const loadClient = () => {
if (client) return client
client = import("google-auth-library").then(({ GoogleAuth }) =>
new GoogleAuth({ projectId: project, scopes: [SCOPE] }).getClient(),
)
return client
}
return Auth.effect(
Effect.tryPromise({
try: async () => {
const token = await (await loadClient()).getAccessToken()
if (!token.token) throw new Error("Google ADC returned an empty access token")
return Redacted.make(token.token)
},
catch: () => new MissingCredentialError("Google Application Default Credentials"),
}),
).bearer()
}
export const oauth = (input: OAuthOptions, project?: string) => {
if (input.accessToken !== undefined && input.auth !== undefined)
throw new Error("Google Vertex accessToken cannot be combined with auth")
if (input.auth) return input.auth
if (input.accessToken !== undefined) return Auth.bearer(input.accessToken)
return adc(project)
}
export * as GoogleVertexShared from "./google-vertex-shared"
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@@ -0,0 +1,106 @@
import type { ProviderPackage } from "../provider-package"
import { Gemini } from "../protocols/gemini"
import { Auth } from "../route/auth"
import { Route, type RouteDefaultsInput } from "../route/client"
import { Endpoint } from "../route/endpoint"
import { Framing } from "../route/framing"
import { ProviderID, type ModelID } from "../schema"
import { GoogleVertexShared } from "./google-vertex-shared"
export type GeminiOptionsInput = Gemini.OptionsInput
export type GeminiProviderOptionsInput = Gemini.ProviderOptionsInput
export const id = ProviderID.make("google-vertex")
export type Config = RouteDefaultsInput &
GoogleVertexShared.ApiKeyOptions & {
readonly baseURL?: string
readonly location?: string
readonly project?: string
readonly providerOptions?: Gemini.ProviderOptionsInput
}
export type Settings = ProviderPackage.Settings &
(
| { readonly accessToken?: string; readonly apiKey?: never }
| { readonly accessToken?: never; readonly apiKey?: string }
) & {
readonly baseURL?: string
readonly location?: string
readonly project?: string
readonly providerOptions?: Gemini.ProviderOptionsInput
}
const route = Route.make({
id: "google-vertex-gemini",
provider: id,
providerMetadataKey: "google",
protocol: Gemini.protocol,
endpoint: Endpoint.path(({ request }) => {
const model = String(request.model.id)
return `/${model.startsWith("endpoints/") ? model : `models/${model}`}:streamGenerateContent?alt=sse`
}),
auth: Auth.none,
framing: Framing.sse,
})
export const routes = [route]
const configuredRoute = (input: Config, modelID: string | ModelID) => {
const {
accessToken: _accessToken,
apiKey: _apiKey,
auth: _auth,
baseURL,
location: inputLocation,
project: inputProject,
...rest
} = input
const apiKey = GoogleVertexShared.apiKey(input)
const endpointModel = String(modelID).startsWith("endpoints/")
if (apiKey !== undefined && endpointModel)
throw new Error("Google Vertex tuned models do not support Express Mode API keys")
const location = GoogleVertexShared.location(inputLocation, "us-central1")
const project = GoogleVertexShared.project(inputProject)
const endpoint =
baseURL ??
(apiKey
? "https://aiplatform.googleapis.com/v1/publishers/google"
: `https://${GoogleVertexShared.host(location)}/v1beta1/projects/${GoogleVertexShared.requireProject(project)}/locations/${location}${endpointModel ? "" : "/publishers/google"}`)
return route.with({
...rest,
endpoint: { baseURL: endpoint },
auth: apiKey === undefined ? GoogleVertexShared.oauth(input, project) : Auth.header("x-goog-api-key", apiKey),
})
}
export const configure = (input: Config = {}) => {
return {
id,
model: (modelID: string | ModelID) =>
configuredRoute(input, modelID).model<Gemini.ProviderOptionsInput>({ id: modelID }),
configure,
}
}
export const provider = {
id,
configure,
}
export const model: ProviderPackage.Definition<Settings, Gemini.ProviderOptionsInput>["model"] = (
modelID,
settings,
) => {
if (settings.apiKey !== undefined && settings.accessToken !== undefined)
throw new Error("Google Vertex apiKey cannot be combined with accessToken or auth")
return configure({
...(settings.apiKey === undefined ? { accessToken: settings.accessToken } : { apiKey: settings.apiKey }),
baseURL: settings.baseURL,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
location: settings.location,
project: settings.project,
providerOptions: settings.providerOptions,
}).model(modelID)
}
@@ -0,0 +1,2 @@
export { model } from "../google-vertex-chat"
export type { Settings } from "../google-vertex-chat"
@@ -0,0 +1,2 @@
export { model } from "../google-vertex"
export type { Settings } from "../google-vertex"
@@ -0,0 +1,2 @@
export { model } from "../google-vertex-messages"
export type { Settings } from "../google-vertex-messages"
@@ -0,0 +1,2 @@
export { model } from "../google-vertex-responses"
export type { Settings } from "../google-vertex-responses"
+70
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@@ -0,0 +1,70 @@
import type { RouteDefaultsInput } from "../route/client"
import { Auth } from "../route/auth"
import type { ProviderAuthOption } from "../route/auth-options"
import type { ProviderPackage } from "../provider-package"
import { HttpOptions, ProviderID, mergeHttpOptions, type ModelID } from "../schema"
import { Gemini } from "../protocols/gemini"
import { GoogleImages } from "../protocols/google-images"
export type { GoogleImageOptions } from "../protocols/google-images"
export type GeminiOptionsInput = Gemini.OptionsInput
export type GeminiProviderOptionsInput = Gemini.ProviderOptionsInput
export const id = ProviderID.make("google")
export const routes = [Gemini.route]
export type Config = RouteDefaultsInput &
ProviderAuthOption<"optional"> & {
readonly baseURL?: string
readonly providerOptions?: Gemini.ProviderOptionsInput
}
export interface Settings extends ProviderPackage.Settings {
readonly apiKey?: string
readonly baseURL?: string
readonly providerOptions?: Gemini.ProviderOptionsInput
}
const auth = (options: ProviderAuthOption<"optional">) => {
if ("auth" in options && options.auth) return options.auth
return Auth.optional("apiKey" in options ? options.apiKey : undefined, "apiKey")
.orElse(Auth.config("GOOGLE_GENERATIVE_AI_API_KEY"))
.pipe(Auth.header("x-goog-api-key"))
}
const configuredRoute = (input: Config) => {
const { apiKey: _, auth: _auth, baseURL, ...rest } = input
return Gemini.route.with({ ...rest, endpoint: { baseURL }, auth: auth(input) })
}
export const configure = (input: Config = {}) => {
const route = configuredRoute(input)
const image = (modelID: string | ModelID) =>
GoogleImages.model({
id: modelID,
auth: auth(input),
baseURL: input.baseURL,
headers: input.headers,
http: mergeHttpOptions(input.http === undefined ? undefined : HttpOptions.make(input.http)),
})
return {
id,
model: (modelID: string | ModelID) => route.model<Gemini.ProviderOptionsInput>({ id: modelID }),
image,
configure,
}
}
export const provider = configure()
export const model: ProviderPackage.Definition<Settings, Gemini.ProviderOptionsInput>["model"] = (modelID, settings) =>
configure({
apiKey: settings.apiKey,
baseURL: settings.baseURL,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
providerOptions: settings.providerOptions,
}).model(modelID)
export const image = provider.image
+19
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@@ -0,0 +1,19 @@
export * as Anthropic from "./anthropic"
export * as AnthropicCompatible from "./anthropic-compatible"
export * as AmazonBedrock from "./amazon-bedrock"
export * as AmazonBedrockMantle from "./amazon-bedrock-mantle"
export * as Azure from "./azure"
export * as Cloudflare from "./cloudflare"
export { CloudflareAIGateway, CloudflareWorkersAI } from "./cloudflare"
export * as GitHubCopilot from "./github-copilot"
export * as Google from "./google"
export * as GoogleVertex from "./google-vertex"
export * as GoogleVertexChat from "./google-vertex-chat"
export * as GoogleVertexMessages from "./google-vertex-messages"
export * as GoogleVertexResponses from "./google-vertex-responses"
export * as OpenAI from "./openai"
export * as OpenAICompatible from "./openai-compatible"
export * as OpenAICompatibleResponses from "./openai-compatible-responses"
export * as OpenRouter from "./openrouter"
export * as XAI from "./xai"
export * as ZAI from "./zai"
@@ -0,0 +1,20 @@
import type { ResponseIncludable, ServiceTier } from "../protocols/utils/open-responses-options"
import type { ProviderOptions, ReasoningEffort, TextVerbosity } from "../schema"
export interface OpenResponsesOptionsInput {
readonly [key: string]: unknown
readonly instructions?: string
readonly store?: boolean
readonly promptCacheKey?: string
readonly reasoningEffort?: ReasoningEffort
readonly reasoningSummary?: "auto" | "concise" | "detailed"
readonly include?: ReadonlyArray<ResponseIncludable>
readonly textVerbosity?: TextVerbosity
readonly serviceTier?: ServiceTier
}
export type OpenResponsesProviderOptionsInput = ProviderOptions & {
readonly openresponses?: OpenResponsesOptionsInput
}
export * as OpenResponsesProviderOptions from "./open-responses-options"
@@ -0,0 +1,61 @@
import type { ProviderPackage } from "../provider-package"
import { OpenAICompatibleResponses } from "../protocols/openai-compatible-responses"
import { AuthOptions, type ProviderAuthOption } from "../route/auth-options"
import type { RouteDefaultsInput } from "../route/client"
import { ProviderID, type ModelID } from "../schema"
import type { OpenResponsesProviderOptionsInput } from "./open-responses-options"
export type { OpenResponsesOptionsInput, OpenResponsesProviderOptionsInput } from "./open-responses-options"
export const id = ProviderID.make("openai-compatible")
export type Config = RouteDefaultsInput &
ProviderAuthOption<"optional"> & {
readonly provider?: string
readonly baseURL: string
readonly providerOptions?: OpenResponsesProviderOptionsInput
}
export interface Settings extends ProviderPackage.Settings {
readonly apiKey?: string
readonly baseURL: string
readonly provider?: string
readonly providerOptions?: OpenResponsesProviderOptionsInput
}
export const routes = [OpenAICompatibleResponses.route]
export const configure = (input: Config) => {
const provider = input.provider ?? "openai-compatible"
const { provider: _, baseURL, apiKey: _apiKey, auth: _auth, ...rest } = input
const route = OpenAICompatibleResponses.route.with({
...rest,
provider,
endpoint: { baseURL },
auth: AuthOptions.bearer(input, []),
})
return {
id: ProviderID.make(provider),
model: (modelID: string | ModelID) => route.model<OpenResponsesProviderOptionsInput>({ id: modelID }),
configure,
}
}
export const provider = {
id,
configure,
}
export const model: ProviderPackage.Definition<Settings, OpenResponsesProviderOptionsInput>["model"] = (
modelID,
settings,
) =>
configure({
apiKey: settings.apiKey,
baseURL: settings.baseURL,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
provider: settings.provider,
providerOptions: settings.providerOptions,
}).model(modelID)
@@ -0,0 +1,86 @@
import { ProviderID, type ModelID } from "../schema"
import * as OpenAICompatibleChat from "../protocols/openai-compatible-chat"
import type { RouteDefaultsInput } from "../route/client"
import { AuthOptions, type ProviderAuthOption } from "../route/auth-options"
import type { ProviderPackage } from "../provider-package"
import { profiles, type OpenAICompatibleProfile } from "./openai-compatible-profile"
import type { OpenAIProviderOptionsInput } from "./openai-options"
export const id = ProviderID.make("openai-compatible")
type GenericModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
ProviderAuthOption<"optional"> & {
readonly provider?: string
readonly baseURL: string
readonly providerOptions?: OpenAIProviderOptionsInput
}
export interface Settings extends ProviderPackage.Settings {
readonly apiKey?: string
readonly baseURL: string
readonly provider?: string
}
export type FamilyModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
ProviderAuthOption<"optional"> & {
readonly baseURL?: string
readonly providerOptions?: OpenAIProviderOptionsInput
}
export const routes = [OpenAICompatibleChat.route]
export const configure = (input: GenericModelOptions) => {
const provider = input.provider ?? "openai-compatible"
const { provider: _, baseURL, apiKey: _apiKey, auth: _auth, ...rest } = input
const route = OpenAICompatibleChat.route.with({
...rest,
provider,
endpoint: { baseURL },
auth: AuthOptions.bearer(input, []),
})
return {
id: ProviderID.make(provider),
model: (modelID: string | ModelID) =>
route.model<OpenAIProviderOptionsInput>({ id: modelID, provider: ProviderID.make(provider) }),
configure,
}
}
const define = (profile: OpenAICompatibleProfile) => {
const configureProfile = (input: FamilyModelOptions = {}) => {
const facade = configure({
...input,
baseURL: input.baseURL ?? profile.baseURL,
provider: profile.provider,
})
return {
id: ProviderID.make(profile.provider),
model: facade.model,
configure: configureProfile,
}
}
return configureProfile()
}
export const provider = {
id,
configure,
}
export const model: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (modelID, settings) =>
configure({
apiKey: settings.apiKey,
baseURL: settings.baseURL,
headers: settings.headers === undefined ? undefined : { ...settings.headers },
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
provider: settings.provider,
}).model(modelID)
export const baseten = define(profiles.baseten)
export const cerebras = define(profiles.cerebras)
export const deepinfra = define(profiles.deepinfra)
export const deepseek = define(profiles.deepseek)
export const fireworks = define(profiles.fireworks)
export const groq = define(profiles.groq)
export const togetherai = define(profiles.togetherai)
@@ -0,0 +1 @@
export * from "../openai-compatible-responses"
@@ -0,0 +1,71 @@
import type { ProviderOptions } from "../schema"
import { mergeProviderOptions } from "../schema"
import type { OpenResponsesOptionsInput } from "./open-responses-options"
export type { OpenAIResponseIncludable, OpenAIServiceTier } from "../protocols/utils/openai-options"
export type OpenAIOptionsInput = OpenResponsesOptionsInput
export type OpenAIProviderOptionsInput = ProviderOptions & {
readonly openai?: OpenAIOptionsInput
}
const definedEntries = (input: Record<string, unknown>) =>
Object.entries(input).filter((entry) => entry[1] !== undefined)
const openAIProviderOptions = (options: OpenAIOptionsInput | undefined): ProviderOptions | undefined => {
const openai = Object.fromEntries(
definedEntries({
store: options?.store,
promptCacheKey: options?.promptCacheKey,
reasoningEffort: options?.reasoningEffort,
reasoningSummary: options?.reasoningSummary,
include: options?.include,
textVerbosity: options?.textVerbosity,
serviceTier: options?.serviceTier,
}),
)
if (Object.keys(openai).length === 0) return undefined
return { openai }
}
export const gpt5DefaultOptions = (
modelID: string,
options: { readonly textVerbosity?: boolean } = {},
): ProviderOptions | undefined => {
const id = modelID.toLowerCase()
if (!id.includes("gpt-5") || id.includes("gpt-5-chat") || id.includes("gpt-5-pro")) return undefined
return openAIProviderOptions({
reasoningEffort: "medium",
reasoningSummary: "auto",
// GPT-5 reasoning models are configured stateless (`store: false`) by
// `openAIDefaultOptions` below, so the only way a follow-up turn can
// carry reasoning state is via the encrypted reasoning include. Without
// this, callers using the default model facade get reasoning summaries
// they cannot replay statelessly.
include: ["reasoning.encrypted_content"],
textVerbosity:
options.textVerbosity === true && id.includes("gpt-5.") && !id.includes("codex") && !id.includes("-chat")
? "low"
: undefined,
})
}
export const openAIDefaultOptions = (
modelID: string,
options: { readonly textVerbosity?: boolean } = {},
): ProviderOptions | undefined =>
mergeProviderOptions(openAIProviderOptions({ store: false }), gpt5DefaultOptions(modelID, options))
export const withOpenAIOptions = <Options extends { readonly providerOptions?: OpenAIProviderOptionsInput }>(
modelID: string,
options: Options,
defaults: { readonly textVerbosity?: boolean } = {},
): Omit<Options, "providerOptions"> & { readonly providerOptions?: ProviderOptions } => {
return {
...options,
providerOptions: mergeProviderOptions(openAIDefaultOptions(modelID, defaults), options.providerOptions),
}
}
export * as OpenAIProviderOptions from "./openai-options"
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@@ -0,0 +1,154 @@
import { AuthOptions, type ProviderAuthOption } from "../route/auth-options"
import type { Route, RouteDefaultsInput } from "../route/client"
import type { ProviderPackage } from "../provider-package"
import { HttpOptions, ProviderID, ToolDefinition, mergeHttpOptions, type ModelID } from "../schema"
import * as OpenAIChat from "../protocols/openai-chat"
import * as OpenAIResponses from "../protocols/openai-responses"
import { withOpenAIOptions, type OpenAIProviderOptionsInput } from "./openai-options"
import { OpenAIImages, type OpenAIImageString } from "../protocols/openai-images"
export type { OpenAIOptionsInput, OpenAIResponseIncludable } from "./openai-options"
export type { OpenAIImageOptions } from "../protocols/openai-images"
export const id = ProviderID.make("openai")
export const routes = [OpenAIResponses.route, OpenAIResponses.webSocketRoute, OpenAIChat.route]
// This provider facade wraps the lower-level Responses and Chat model factories
// with OpenAI-specific conveniences: typed options, API-key sugar, env fallback,
// and default option normalization.
export type Config = RouteDefaultsInput &
ProviderAuthOption<"optional"> & {
readonly baseURL?: string
readonly queryParams?: Record<string, string>
readonly providerOptions?: OpenAIProviderOptionsInput
}
export interface ImageGenerationOptions {
readonly action?: OpenAIImageString<"auto" | "generate" | "edit">
readonly background?: OpenAIImageString<"auto" | "opaque" | "transparent">
readonly inputFidelity?: OpenAIImageString<"low" | "high">
readonly outputCompression?: number
readonly outputFormat?: OpenAIImageString<"png" | "jpeg" | "webp">
readonly partialImages?: number
readonly quality?: OpenAIImageString<"auto" | "low" | "medium" | "high" | "standard" | "hd">
readonly size?: OpenAIImageString<
"auto" | "256x256" | "512x512" | "1024x1024" | "1536x1024" | "1024x1536" | "1792x1024" | "1024x1792"
>
}
export const imageGeneration = (options: ImageGenerationOptions = {}) =>
ToolDefinition.make({
name: "image_generation",
description: "Generate or edit an image using OpenAI's hosted image generation tool.",
inputSchema: { type: "object", properties: {}, additionalProperties: false },
native: {
openai: {
type: "image_generation",
action: options.action,
background: options.background,
input_fidelity: options.inputFidelity,
output_compression: options.outputCompression,
output_format: options.outputFormat,
partial_images: options.partialImages,
quality: options.quality,
size: options.size,
},
},
})
export interface Settings extends ProviderPackage.Settings {
readonly apiKey?: string
readonly baseURL?: string
readonly organization?: string
readonly project?: string
readonly queryParams?: Readonly<Record<string, string>>
readonly transport?: "http" | "websocket"
readonly providerOptions?: OpenAIProviderOptionsInput
}
const auth = (options: ProviderAuthOption<"optional">) => AuthOptions.bearer(options, "OPENAI_API_KEY")
const defaults = (input: Config) => {
const { apiKey: _, auth: _auth, baseURL: _baseURL, queryParams: _queryParams, ...rest } = input
return rest
}
const configuredRoute = <Body, Prepared>(route: Route<Body, Prepared>, input: Config) =>
route.with({
auth: auth(input),
endpoint: { baseURL: input.baseURL, query: input.queryParams },
})
export const configure = (input: Config = {}) => {
const responsesRoute = configuredRoute(OpenAIResponses.route, input)
const responsesWebSocketRoute = configuredRoute(OpenAIResponses.webSocketRoute, input)
const chatRoute = configuredRoute(OpenAIChat.route, input)
const modelDefaults = defaults(input)
const responses = (id: string | ModelID) =>
responsesRoute
.with(withOpenAIOptions(id, modelDefaults, { textVerbosity: true }))
.model<OpenAIProviderOptionsInput>({ id })
const responsesWebSocket = (id: string | ModelID) =>
responsesWebSocketRoute
.with(withOpenAIOptions(id, modelDefaults, { textVerbosity: true }))
.model<OpenAIProviderOptionsInput>({ id })
const chat = (id: string | ModelID) =>
chatRoute.with(withOpenAIOptions(id, modelDefaults)).model<OpenAIProviderOptionsInput>({ id })
const image = (modelID: string | ModelID) =>
OpenAIImages.model({
id: modelID,
auth: auth(input),
baseURL: input.baseURL,
headers: input.headers,
http: mergeHttpOptions(
input.http === undefined ? undefined : HttpOptions.make(input.http),
input.queryParams === undefined ? undefined : new HttpOptions({ query: input.queryParams }),
),
})
return {
id,
model: responses,
responses,
responsesWebSocket,
chat,
image,
configure,
}
}
export const provider = configure()
const config = (settings: Settings): Config => {
const headers = {
...(settings.organization === undefined ? {} : { "OpenAI-Organization": settings.organization }),
...(settings.project === undefined ? {} : { "OpenAI-Project": settings.project }),
...settings.headers,
}
return {
apiKey: settings.apiKey,
baseURL: settings.baseURL,
headers: Object.keys(headers).length === 0 ? undefined : headers,
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
providerOptions: settings.providerOptions,
queryParams: settings.queryParams === undefined ? undefined : { ...settings.queryParams },
}
}
export const model: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (modelID, settings) => {
const configured = configure(config(settings))
if (settings.transport === undefined || settings.transport === "http") return configured.responses(modelID)
if (settings.transport === "websocket") return configured.responsesWebSocket(modelID)
throw new Error(`Unsupported OpenAI Responses transport: ${String(settings.transport)}`)
}
export const chatModel: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (
modelID,
settings,
) => configure(config(settings)).chat(modelID)
export const responses = provider.responses
export const responsesWebSocket = provider.responsesWebSocket
export const chat = provider.chat
export const image = provider.image
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export { chatModel as model } from "../openai"
export type { Settings } from "../openai"
@@ -0,0 +1,2 @@
export { model } from "../openai"
export type { Settings } from "../openai"
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import { Effect, Schema } from "effect"
import { Route, type RouteDefaultsInput } from "../route/client"
import { Endpoint } from "../route/endpoint"
import { Framing } from "../route/framing"
import { Protocol } from "../route/protocol"
import { AuthOptions, type ProviderAuthOption } from "../route/auth-options"
import { ProviderID, type CacheHint, type ModelID, type ProviderOptions } from "../schema"
import type { ProviderPackage } from "../provider-package"
import * as OpenAICompatibleProfiles from "./openai-compatible-profile"
import * as OpenAIChat from "../protocols/openai-chat"
import { newBreakpoints, ttlBucket } from "../protocols/utils/cache"
import { isRecord } from "../protocols/shared"
export const profile = OpenAICompatibleProfiles.profiles.openrouter
export const id = ProviderID.make(profile.provider)
const ADAPTER = "openrouter"
type OpenRouterString<Known extends string> = Known | (string & {})
export interface OpenRouterProviderRouting {
readonly [key: string]: unknown
readonly order?: ReadonlyArray<string>
readonly allow_fallbacks?: boolean
readonly require_parameters?: boolean
readonly data_collection?: OpenRouterString<"allow" | "deny">
readonly only?: ReadonlyArray<string>
readonly ignore?: ReadonlyArray<string>
readonly quantizations?: ReadonlyArray<string>
readonly sort?: OpenRouterString<"price" | "throughput" | "latency">
readonly max_price?: Readonly<{
prompt?: number | string
completion?: number | string
image?: number | string
audio?: number | string
request?: number | string
}>
readonly zdr?: boolean
}
export type OpenRouterPlugin =
| Readonly<{
id: "web"
max_results?: number
search_prompt?: string
engine?: OpenRouterString<"native" | "exa">
}>
| Readonly<{ id: "file-parser"; max_files?: number; pdf?: { engine?: string } }>
| Readonly<{ id: "moderation" }>
| Readonly<{ id: "response-healing" }>
| Readonly<{ id: "auto-router"; allowed_models?: ReadonlyArray<string> }>
| Readonly<{ id: string & {}; [key: string]: unknown }>
export interface OpenRouterOptions {
readonly [key: string]: unknown
readonly debug?: Readonly<{ echo_upstream_body?: boolean }>
readonly models?: ReadonlyArray<string>
readonly plugins?: ReadonlyArray<OpenRouterPlugin>
readonly promptCacheKey?: string
readonly provider?: OpenRouterProviderRouting
readonly reasoning?: Readonly<{
enabled?: boolean
exclude?: boolean
effort?: OpenRouterString<"none" | "minimal" | "low" | "medium" | "high" | "xhigh" | "max">
max_tokens?: number
}>
readonly usage?: boolean | Readonly<{ include: boolean }>
readonly user?: string
readonly web_search_options?: Readonly<{
max_results?: number
search_prompt?: string
engine?: OpenRouterString<"native" | "exa">
}>
}
export type OpenRouterProviderOptionsInput = ProviderOptions & {
readonly openrouter?: OpenRouterOptions
}
export type LanguageModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
ProviderAuthOption<"optional"> & {
readonly baseURL?: string
readonly providerOptions?: OpenRouterProviderOptionsInput
}
export interface Settings extends ProviderPackage.Settings {
readonly apiKey?: string
readonly baseURL?: string
readonly providerOptions?: OpenRouterProviderOptionsInput
}
const OpenRouterBody = Schema.StructWithRest(Schema.Struct(OpenAIChat.bodyFields), [
Schema.Record(Schema.String, Schema.Any),
])
export type OpenRouterBody = Schema.Schema.Type<typeof OpenRouterBody>
export const protocol = Protocol.make({
id: "openrouter-chat",
body: {
schema: OpenRouterBody,
from: (request) =>
OpenAIChat.fromRequest(request, { cacheControl: cacheControl() }).pipe(
Effect.map((body) => {
const sourceAssistants = request.messages.filter((message) => message.role === "assistant")
let assistantIndex = 0
const messages = body.messages.map((message) => {
if (message.role !== "assistant") return message
const source = sourceAssistants[assistantIndex++]
const reasoning = source?.content
.filter((part) => part.type === "reasoning")
.map((part) => part.text)
.join("")
const reasoningDetails = Array.isArray(message.reasoning_details) ? message.reasoning_details : undefined
return {
...message,
reasoning_content: undefined,
reasoning_text: undefined,
reasoning: reasoning && reasoningDetails && reasoningDetails.length > 0 ? reasoning : undefined,
reasoning_details: reasoningDetails,
}
})
return {
...body,
messages,
...bodyOptions(request.providerOptions?.openrouter),
} as OpenRouterBody
}),
),
},
stream: OpenAIChat.protocol.stream,
})
const cacheControl = () => {
const breakpoints = newBreakpoints(4)
return (cache: CacheHint | undefined) => {
if (cache === undefined || breakpoints.remaining === 0) return undefined
breakpoints.remaining -= 1
return {
type: "ephemeral" as const,
...(ttlBucket(cache.ttlSeconds) === "1h" ? { ttl: "1h" } : {}),
}
}
}
const bodyOptions = (input: unknown) => {
const openrouter = isRecord(input) ? input : {}
const { usage, models, provider, plugins, web_search_options, debug, user, reasoning, promptCacheKey, ...options } =
openrouter
return {
...options,
...(usage === undefined || usage === true
? { usage: { include: true } }
: usage === false
? { usage: { include: false } }
: isRecord(usage)
? { usage }
: {}),
...(Array.isArray(models) ? { models } : {}),
...(isRecord(provider) ? { provider } : {}),
...(Array.isArray(plugins) ? { plugins } : {}),
...(isRecord(web_search_options) ? { web_search_options } : {}),
...(isRecord(debug) ? { debug } : {}),
...(typeof user === "string" ? { user } : {}),
...(isRecord(reasoning) ? { reasoning } : {}),
...(typeof promptCacheKey === "string" ? { prompt_cache_key: promptCacheKey } : {}),
}
}
export const route = Route.make({
id: ADAPTER,
provider: profile.provider,
protocol,
endpoint: Endpoint.path("/chat/completions", { baseURL: profile.baseURL }),
framing: Framing.sse,
})
export const routes = [route]
const configuredRoute = (input: LanguageModelOptions) => {
const { apiKey: _, auth: _auth, baseURL, ...rest } = input
return route.with({
...rest,
endpoint: { baseURL: baseURL ?? profile.baseURL },
auth: AuthOptions.bearer(input, "OPENROUTER_API_KEY"),
})
}
export const configure = (input: LanguageModelOptions = {}) => {
const route = configuredRoute(input)
return {
id,
model: (modelID: string | ModelID) => route.model<OpenRouterProviderOptionsInput>({ id: modelID }),
configure,
}
}
export const provider = configure()
export const model: ProviderPackage.Definition<Settings, OpenRouterProviderOptionsInput>["model"] = (
modelID,
settings,
) =>
configure({
apiKey: settings.apiKey,
baseURL: settings.baseURL,
headers: settings.headers,
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
providerOptions: settings.providerOptions,
}).model(modelID)
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import { AuthOptions, type ProviderAuthOption } from "../route/auth-options"
import { Route, type RouteDefaultsInput } from "../route/client"
import { Endpoint } from "../route/endpoint"
import { HttpOptions, ProviderID, type ModelID, type ProviderOptions } from "../schema"
import * as OpenAICompatibleProfiles from "./openai-compatible-profile"
import * as OpenAICompatibleChat from "../protocols/openai-compatible-chat"
import * as OpenAIChat from "../protocols/openai-chat"
import * as OpenAIResponses from "../protocols/openai-responses"
import { XAIImages } from "../protocols/xai-images"
import type { OpenAIOptionsInput } from "./openai-options"
import type { ProviderPackage } from "../provider-package"
export const id = ProviderID.make("xai")
export type XAIProviderOptionsInput = ProviderOptions & {
readonly xai?: OpenAIOptionsInput
}
export type LanguageModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
ProviderAuthOption<"optional"> & {
readonly baseURL?: string
readonly providerOptions?: XAIProviderOptionsInput
}
export interface Settings extends ProviderPackage.Settings {
readonly apiKey?: string
readonly baseURL?: string
readonly providerOptions?: XAIProviderOptionsInput
}
export type { XAIImageOptions } from "../protocols/xai-images"
const responsesRoute = Route.make({
id: "openai-responses",
provider: id,
providerMetadataKey: "xai",
protocol: OpenAIResponses.protocol,
endpoint: Endpoint.path("/responses", { baseURL: OpenAICompatibleProfiles.profiles.xai.baseURL }),
transport: OpenAIResponses.httpTransport,
defaults: { providerOptions: { xai: { store: false } } },
})
const chatRoute = Route.make({
id: "openai-compatible-chat",
provider: id,
providerMetadataKey: "xai",
protocol: OpenAIChat.protocol,
endpoint: Endpoint.path("/chat/completions", { baseURL: OpenAICompatibleProfiles.profiles.xai.baseURL }),
transport: OpenAICompatibleChat.route.transport,
})
export const routes = [responsesRoute, chatRoute]
const auth = (options: ProviderAuthOption<"optional">) => AuthOptions.bearer(options, "XAI_API_KEY")
const configuredResponsesRoute = (input: LanguageModelOptions) => {
const { apiKey: _, auth: _auth, baseURL, ...rest } = input
return responsesRoute.with({
...rest,
endpoint: { baseURL: baseURL ?? OpenAICompatibleProfiles.profiles.xai.baseURL },
auth: auth(input),
})
}
const configuredChatRoute = (input: LanguageModelOptions) => {
const { apiKey: _, auth: _auth, baseURL, ...rest } = input
return chatRoute.with({
...rest,
endpoint: { baseURL: baseURL ?? OpenAICompatibleProfiles.profiles.xai.baseURL },
auth: auth(input),
})
}
export const configure = (input: LanguageModelOptions = {}) => {
const responsesRoute = configuredResponsesRoute(input)
const chatRoute = configuredChatRoute(input)
const responses = (modelID: string | ModelID) => responsesRoute.model<XAIProviderOptionsInput>({ id: modelID })
const chat = (modelID: string | ModelID) => chatRoute.model<XAIProviderOptionsInput>({ id: modelID })
const image = (modelID: string | ModelID) =>
XAIImages.model({
id: modelID,
auth: auth(input),
baseURL: input.baseURL ?? OpenAICompatibleProfiles.profiles.xai.baseURL,
headers: input.headers,
http: input.http === undefined ? undefined : HttpOptions.make(input.http),
})
return {
id,
model: responses,
responses,
chat,
image,
configure,
}
}
export const provider = configure()
export const model: ProviderPackage.Definition<Settings, XAIProviderOptionsInput>["model"] = (modelID, settings) =>
configure({
apiKey: settings.apiKey,
baseURL: settings.baseURL,
headers: settings.headers,
http: settings.body === undefined ? undefined : { body: { ...settings.body } },
limits: settings.limits,
providerOptions: settings.providerOptions,
}).model(modelID)
export const responses = provider.responses
export const chat = provider.chat
export const image = provider.image
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import { ZAIImages } from "../protocols/zai-images"
import { AuthOptions, type ProviderAuthOption } from "../route/auth-options"
import { HttpOptions, ProviderID, type ModelID } from "../schema"
export const id = ProviderID.make("zai")
export type Config = ProviderAuthOption<"optional"> & {
readonly baseURL?: string
readonly headers?: Record<string, string>
readonly http?: HttpOptions.Input
}
export type { ZAIImageOptions } from "../protocols/zai-images"
const auth = (options: ProviderAuthOption<"optional">) => AuthOptions.bearer(options, "ZAI_API_KEY")
export const configure = (input: Config = {}) => {
const image = (modelID: string | ModelID) =>
ZAIImages.model({
id: modelID,
auth: auth(input),
baseURL: input.baseURL,
headers: input.headers,
http: input.http === undefined ? undefined : HttpOptions.make(input.http),
})
return {
id,
image,
configure,
}
}
export const provider = configure()
export const image = provider.image
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export * from "./route/index"
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import type { Config, Redacted } from "effect"
import { Auth } from "./auth"
export type ApiKeyMode = "optional" | "required"
export type AuthOverride = {
readonly auth: Auth.Definition
readonly apiKey?: never
}
export type OptionalApiKeyAuth = {
readonly apiKey?: string | Redacted.Redacted<string> | Config.Config<string | Redacted.Redacted<string>>
readonly auth?: never
}
export type RequiredApiKeyAuth = {
readonly apiKey: string | Redacted.Redacted<string> | Config.Config<string | Redacted.Redacted<string>>
readonly auth?: never
}
export type ProviderAuthOption<Mode extends ApiKeyMode> =
| AuthOverride
| (Mode extends "optional" ? OptionalApiKeyAuth : RequiredApiKeyAuth)
export type LanguageModelOptions<Base, Mode extends ApiKeyMode> = Omit<Base, "apiKey" | "auth"> &
ProviderAuthOption<Mode>
export type LanguageModelArgs<Base, Mode extends ApiKeyMode> = Mode extends "optional"
? readonly [options?: LanguageModelOptions<Base, Mode>]
: readonly [options: LanguageModelOptions<Base, Mode>]
export type LanguageModelFactory<Base, Mode extends ApiKeyMode, LanguageModel> = (
id: string,
...args: LanguageModelArgs<Base, Mode>
) => LanguageModel
/**
* Require at least one of the keys in `T`. Use for option shapes where any
* subset of fields is acceptable but at least one must be present (e.g. Azure
* accepts `resourceName` or `baseURL`).
*/
export type AtLeastOne<T> = {
[K in keyof T]: Required<Pick<T, K>> & Partial<Omit<T, K>>
}[keyof T]
/**
* Standard bearer-auth resolution for providers: honor an explicit `auth`
* override, otherwise resolve `apiKey` (option > config var) and apply it as
* a bearer token.
*/
export const bearer = (
options: ProviderAuthOption<"optional">,
envVar: string | ReadonlyArray<string>,
): Auth.Definition => {
if ("auth" in options && options.auth) return options.auth
return (Array.isArray(envVar) ? envVar : [envVar])
.reduce(
(auth, name) => auth.orElse(Auth.config(name)),
Auth.optional("apiKey" in options ? options.apiKey : undefined, "apiKey"),
)
.bearer()
}
export * as AuthOptions from "./auth-options"
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import { Config, Effect, Redacted } from "effect"
import { Headers } from "effect/unstable/http"
import { AuthenticationReason, InvalidRequestReason, AIError, type HttpOptions } from "../schema"
export class MissingCredentialError extends Error {
readonly _tag = "MissingCredentialError"
constructor(readonly source: string) {
super(`Missing auth credential: ${source}`)
}
}
export type CredentialError = MissingCredentialError | Config.ConfigError
export type AuthError = CredentialError | AIError
type Secret = string | Redacted.Redacted | Config.Config<string | Redacted.Redacted>
export interface AuthInput {
readonly request: { readonly http?: HttpOptions }
readonly method: "POST" | "GET"
readonly url: string
readonly body: string
readonly headers: Headers.Headers
}
export interface Credential {
readonly load: Effect.Effect<Redacted.Redacted, CredentialError>
readonly orElse: (that: Credential) => Credential
readonly bearer: () => Definition
readonly header: (name: string) => Definition
readonly pipe: <A>(f: (self: Credential) => A) => A
}
export interface Definition {
readonly apply: (input: AuthInput) => Effect.Effect<Headers.Headers, AuthError>
readonly andThen: (that: Definition) => Definition
readonly orElse: (that: Definition) => Definition
readonly pipe: <A>(f: (self: Definition) => A) => A
}
export const isAuth = (input: unknown): input is Definition =>
typeof input === "object" && input !== null && "apply" in input && typeof input.apply === "function"
const credential = (load: Effect.Effect<Redacted.Redacted, CredentialError>): Credential => {
const self: Credential = {
load,
orElse: (that) => credential(load.pipe(Effect.catch(() => that.load))),
bearer: () => fromCredential(self, (secret) => ({ authorization: `Bearer ${secret}` })),
header: (name) => fromCredential(self, (secret) => ({ [name]: secret })),
pipe: (f) => f(self),
}
return self
}
const auth = (apply: Definition["apply"]): Definition => {
const self: Definition = {
apply,
andThen: (that) =>
auth((input) => apply(input).pipe(Effect.flatMap((headers) => that.apply({ ...input, headers })))),
orElse: (that) => auth((input) => apply(input).pipe(Effect.catch(() => that.apply(input)))),
pipe: (f) => f(self),
}
return self
}
const fromCredential = (source: Credential, render: (secret: string) => Headers.Input) =>
auth((input) =>
source.load.pipe(Effect.map((secret) => Headers.setAll(input.headers, render(Redacted.value(secret))))),
)
const secretEffect = (secret: string | Redacted.Redacted, source: string) => {
const redacted = typeof secret === "string" ? Redacted.make(secret) : secret
if (Redacted.value(redacted) === "") return Effect.fail(new MissingCredentialError(source))
return Effect.succeed(redacted)
}
const credentialFromSecret = (secret: Secret, source: string) => {
if (typeof secret === "string" || Redacted.isRedacted(secret)) return credential(secretEffect(secret, source))
return credential(
Effect.gen(function* () {
return yield* secretEffect(yield* secret, source)
}),
)
}
export const value = (secret: string, source = "value") => credentialFromSecret(secret, source)
export const optional = (secret: Secret | undefined, source = "optional value") =>
secret === undefined
? credential(Effect.fail(new MissingCredentialError(source)))
: credentialFromSecret(secret, source)
export const config = (name: string) => credentialFromSecret(Config.redacted(name), name)
export const effect = (load: Effect.Effect<Redacted.Redacted, CredentialError>) => credential(load)
export const none = auth((input) => Effect.succeed(input.headers))
export const headers = (input: Headers.Input) =>
auth((inputAuth) => Effect.succeed(Headers.setAll(inputAuth.headers, input)))
export const remove = (name: string) => auth((input) => Effect.succeed(Headers.remove(input.headers, name)))
export const custom = (apply: (input: AuthInput) => Effect.Effect<Headers.Headers, AIError>) => auth(apply)
export const passthrough = none
const credentialInput = (source: Secret | Credential) =>
typeof source === "string" || Redacted.isRedacted(source) || Config.isConfig(source)
? credentialFromSecret(source, "value")
: source
export function bearer(source: Secret | Credential): Definition
export function bearer(source: Secret | Credential) {
return credentialInput(source).bearer()
}
export const apiKey = bearer
export function header(name: string): (source: Secret | Credential) => Definition
export function header(name: string, source: Secret | Credential): Definition
export function header(name: string, source?: Secret | Credential) {
if (source === undefined) {
return (next: Secret | Credential) => credentialInput(next).header(name)
}
return credentialInput(source).header(name)
}
export function bearerHeader(name: string): (source: Secret | Credential) => Definition
export function bearerHeader(name: string, source: Secret | Credential): Definition
export function bearerHeader(name: string, source?: Secret | Credential) {
const render = (input: Secret | Credential) =>
fromCredential(credentialInput(input), (secret) => ({ [name]: `Bearer ${secret}` }))
if (source === undefined) return render
return render(source)
}
const toAIError = (error: AuthError): AIError => {
if (error instanceof MissingCredentialError || error instanceof Config.ConfigError) {
return new AIError({
module: "Auth",
method: "apply",
reason:
error instanceof MissingCredentialError
? new AuthenticationReason({ message: error.message, kind: "missing" })
: new InvalidRequestReason({ message: `Failed to resolve auth config: ${error.message}` }),
})
}
return error
}
export const toEffect =
(input: Definition) =>
(authInput: AuthInput): Effect.Effect<Headers.Headers, AIError> =>
input.apply(authInput).pipe(Effect.mapError(toAIError))
export * as Auth from "./auth"
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import { Cause, Context, Effect, Layer, Schema, Stream } from "effect"
import * as Option from "effect/Option"
import { Auth } from "./auth"
import { Endpoint, type EndpointPatch } from "./endpoint"
import { RequestExecutor } from "./executor"
import { Framing } from "./framing"
import { HttpTransport } from "./transport"
import type { HttpMiddleware, Transport, TransportRuntime } from "./transport"
import { WebSocketExecutor } from "./transport"
import type { Protocol } from "./protocol"
import { applyCachePolicy } from "../cache-policy"
import * as ProviderShared from "../protocols/shared"
import type { ProtocolID, ProviderOptions } from "../schema"
import {
AIError,
GenerationOptions,
HttpOptions,
LLMRequest,
LLMResponse,
LanguageModel,
LanguageModelLimits,
LLMEvent,
InvalidProviderOutputReason,
ProviderID,
mergeGenerationOptions,
mergeHttpOptions,
mergeProviderOptions,
} from "../schema"
export interface RouteBody<Body> {
/** Schema for the validated provider-native body sent as the JSON request. */
readonly schema: Schema.Codec<Body, unknown>
/** Build the provider-native body from a common `LLMRequest`. */
readonly from: (request: LLMRequest) => Effect.Effect<Body, AIError>
}
export interface Route<Body, Prepared = unknown> {
readonly id: string
readonly provider?: ProviderID
/** ProviderMetadata namespace emitted and consumed by this route. */
readonly providerMetadataKey?: string
readonly protocol: ProtocolID
readonly endpoint: Endpoint.Definition<Body>
readonly auth: Auth.Definition
readonly transport: Transport<Body, Prepared, unknown>
readonly defaults: RouteDefaults
readonly body: RouteBody<Body>
readonly with: (patch: RoutePatch<Body, Prepared>) => Route<Body, Prepared>
readonly model: <Options extends ProviderOptions = ProviderOptions>(
input: RouteMappedLanguageModelInput,
) => LanguageModel<Options>
readonly prepareTransport: (
body: Body,
request: LLMRequest,
options?: StreamOptions,
) => Effect.Effect<Prepared, AIError>
readonly streamPrepared: (
prepared: Prepared,
request: LLMRequest,
runtime: TransportRuntime,
) => Stream.Stream<LLMEvent, AIError>
}
// Route registries intentionally erase body generics after construction.
// Normal call sites use `OpenAIChat.route`; callers only need body types
// when preparing a request with a protocol-specific type assertion.
// oxlint-disable-next-line typescript-eslint/no-explicit-any
export type AnyRoute = Route<any, any>
export type HttpOptionsInput = HttpOptions.Input
export type RouteLanguageModelInput = Omit<LanguageModel.Input, "provider" | "route">
export type RouteRoutedLanguageModelInput = Omit<LanguageModel.Input, "route">
export interface RouteDefaults {
readonly headers?: Record<string, string>
readonly limits?: LanguageModelLimits
readonly generation?: GenerationOptions
readonly providerOptions?: ProviderOptions
readonly http?: HttpOptions
}
export interface RouteDefaultsInput {
readonly headers?: Record<string, string>
readonly limits?: LanguageModelLimits.Input
readonly generation?: GenerationOptions.Input
readonly providerOptions?: ProviderOptions
readonly http?: HttpOptions.Input
}
export interface RoutePatch<Body, Prepared> extends RouteDefaultsInput {
readonly id?: string
readonly provider?: string | ProviderID
readonly auth?: Auth.Definition
readonly transport?: Transport<Body, Prepared, unknown>
readonly endpoint?: EndpointPatch<Body>
}
type RouteMappedLanguageModelInput = RouteLanguageModelInput | RouteRoutedLanguageModelInput
const makeRouteLanguageModel = <Options extends ProviderOptions = ProviderOptions>(
route: AnyRoute,
mapped: RouteMappedLanguageModelInput,
) => {
const provider = route.provider ?? ("provider" in mapped ? mapped.provider : undefined)
if (!provider) throw new Error(`Route.model(${route.id}) requires a provider`)
if (!endpointBaseURL(route.endpoint))
throw new Error(`Route.model(${route.id}) requires an endpoint baseURL — configure it on the route first`)
return LanguageModel.make<Options>({
...mapped,
provider,
route,
})
}
const mergeRouteDefaults = (base: RouteDefaults | undefined, patch: RouteDefaultsInput): RouteDefaults => {
const headers = mergeHeaders(base?.headers, patch.headers)
return {
...base,
...patch,
headers,
limits: patch.limits === undefined ? base?.limits : LanguageModelLimits.make(patch.limits),
generation: mergeGenerationOptions(generationOptions(base?.generation), generationOptions(patch.generation)),
providerOptions: mergeProviderOptions(base?.providerOptions, patch.providerOptions),
http: mergeHttpOptions(
base?.http,
httpOptions(patch.http),
headers === undefined ? undefined : new HttpOptions({ headers }),
),
}
}
const endpointBaseURL = <Body>(endpoint: Endpoint.Definition<Body>) =>
typeof endpoint.baseURL === "string" ? endpoint.baseURL : undefined
const mergeHeaders = (...items: ReadonlyArray<Record<string, string> | undefined>) => {
const entries = items.flatMap((item) =>
item === undefined ? [] : Object.entries(item).filter((entry): entry is [string, string] => entry[1] !== undefined),
)
if (entries.length === 0) return undefined
return Object.fromEntries(entries)
}
export const generationOptions = (input: GenerationOptions.Input | undefined) =>
input === undefined ? undefined : GenerationOptions.make(input)
export const httpOptions = (input: HttpOptionsInput | undefined) => {
if (input === undefined) return input
return HttpOptions.make(input)
}
export interface Interface {
readonly stream: StreamMethod
readonly generate: GenerateMethod
}
export interface StreamOptions {
readonly http?: HttpMiddleware
}
export interface StreamMethod {
(request: LLMRequest, options?: StreamOptions): Stream.Stream<LLMEvent, AIError>
}
export interface GenerateMethod {
(request: LLMRequest, options?: StreamOptions): Effect.Effect<LLMResponse, AIError>
}
export class Service extends Context.Service<Service, Interface>()("@opencode/LLMClient") {}
const resolveRequestOptions = (request: LLMRequest) => {
const routeDefaults = request.model.route.defaults
const modelDefaults = request.model.defaults
const generation = mergeGenerationOptions(routeDefaults.generation, modelDefaults?.generation, request.generation)
return LLMRequest.update(request, {
generation: generation ?? new GenerationOptions({}),
providerOptions: mergeProviderOptions(
routeDefaults.providerOptions,
modelDefaults?.providerOptions,
request.providerOptions,
),
http: mergeHttpOptions(routeDefaults.http, modelDefaults?.http, request.http),
})
}
export interface MakeInput<Body, Frame, Event, State> {
/** Route id used in diagnostics and prepared request metadata. */
readonly id: string
/** Provider identity for route-owned model construction. */
readonly provider?: string | ProviderID
/** ProviderMetadata namespace emitted and consumed by this route. */
readonly providerMetadataKey?: string
/** Semantic API contract — owns body construction, body schema, and parsing. */
readonly protocol: Protocol<Body, Frame, Event, State>
/** Where the request is sent. */
readonly endpoint: Endpoint.Definition<Body>
/** Per-request transport auth. Provider facades override this via `route.with(...)`. */
readonly auth?: Auth.Definition
/** Stream framing — bytes -> frames before `protocol.stream.event` decoding. */
readonly framing: Framing.Definition<Frame>
/** Static / per-request headers added before `auth` runs. */
readonly headers?: (input: { readonly request: LLMRequest }) => Record<string, string>
/** Route/request defaults used when compiling requests for this route. */
readonly defaults?: RouteDefaultsInput
}
export interface MakeTransportInput<Body, Prepared, Frame, Event, State> {
/** Route id used in diagnostics and prepared request metadata. */
readonly id: string
/** Provider identity for route-owned model construction. */
readonly provider?: string | ProviderID
/** ProviderMetadata namespace emitted and consumed by this route. */
readonly providerMetadataKey?: string
/** Semantic API contract — owns body construction, body schema, and parsing. */
readonly protocol: Protocol<Body, Frame, Event, State>
/** Where the request is sent. */
readonly endpoint: Endpoint.Definition<Body>
/** Per-request transport auth. Provider facades override this via `route.with(...)`. */
readonly auth?: Auth.Definition
/** Static / per-request headers added before `auth` runs. */
readonly headers?: (input: { readonly request: LLMRequest }) => Record<string, string>
/** Runnable transport route. */
readonly transport: Transport<Body, Prepared, Frame>
/** Route/request defaults used when compiling requests for this route. */
readonly defaults?: RouteDefaultsInput
}
const streamError = (route: string, message: string, cause: Cause.Cause<unknown>) => {
const failed = cause.reasons.find(Cause.isFailReason)?.error
if (failed instanceof AIError) return failed
return ProviderShared.eventError(route, message, Cause.pretty(cause))
}
const incompleteStreamError = (route: string) =>
new AIError({
module: "LLMClient",
method: "stream",
reason: new InvalidProviderOutputReason({
classification: "incomplete-stream",
message: "The provider response ended unexpectedly.",
route,
}),
})
const requireTerminalEvent = (route: string) => (events: Stream.Stream<LLMEvent, AIError>) =>
Stream.suspend(() => {
let terminal = false
return events.pipe(
Stream.mapEffect((event) => {
if (terminal)
return Effect.fail(
ProviderShared.eventError(route, `Provider emitted ${event.type} after the terminal event`),
)
if (LLMEvent.is.finish(event) || LLMEvent.is.providerError(event)) terminal = true
return Effect.succeed(event)
}),
Stream.onEnd(
Effect.suspend(() =>
terminal
? Effect.void
: Effect.fail(incompleteStreamError(route)),
),
),
)
})
function makeFromTransport<Body, Prepared, Frame, Event, State>(
input: MakeTransportInput<Body, Prepared, Frame, Event, State>,
): Route<Body, Prepared> {
const protocol = input.protocol
const encodeBody = Schema.encodeSync(Schema.fromJsonString(protocol.body.schema))
const decodeEventEffect = Schema.decodeUnknownEffect(protocol.stream.event)
const decodeEvent = (route: string) => (frame: Frame) =>
decodeEventEffect(frame).pipe(
Effect.mapError(() =>
ProviderShared.eventError(
input.id,
`Invalid ${route} stream event`,
typeof frame === "string" ? frame : ProviderShared.encodeJson(frame),
),
),
)
type BuiltRouteInput = Omit<MakeTransportInput<Body, Prepared, Frame, Event, State>, "defaults"> & {
readonly defaults?: RouteDefaults
}
const build = (routeInput: BuiltRouteInput): Route<Body, Prepared> => {
const route: Route<Body, Prepared> = {
id: routeInput.id,
provider: routeInput.provider === undefined ? undefined : ProviderID.make(routeInput.provider),
providerMetadataKey: routeInput.providerMetadataKey,
protocol: protocol.id,
endpoint: routeInput.endpoint,
auth: routeInput.auth ?? Auth.none,
transport: routeInput.transport,
defaults: routeInput.defaults ?? {},
body: protocol.body,
with: (patch: RoutePatch<Body, Prepared>) => {
const { id, provider, auth, transport, endpoint, ...defaults } = patch
return build({
...routeInput,
id: id ?? routeInput.id,
provider: provider ?? routeInput.provider,
auth: auth ?? routeInput.auth,
endpoint: endpoint ? Endpoint.merge(routeInput.endpoint, endpoint) : routeInput.endpoint,
transport: (transport as Transport<Body, Prepared, Frame> | undefined) ?? routeInput.transport,
defaults: mergeRouteDefaults(route.defaults, defaults),
})
},
model: <Options extends ProviderOptions = ProviderOptions>(input: RouteMappedLanguageModelInput) =>
makeRouteLanguageModel<Options>(route, input),
prepareTransport: (body, request, options) =>
routeInput.transport.prepare({
body,
request,
endpoint: routeInput.endpoint,
auth: routeInput.auth ?? Auth.none,
encodeBody,
headers: routeInput.headers,
middleware: options?.http,
}),
streamPrepared: (prepared: Prepared, request: LLMRequest, runtime: TransportRuntime) => {
const route = `${request.model.provider}/${request.model.route.id}`
const events = routeInput.transport
.frames(prepared, request, runtime)
.pipe(
Stream.mapEffect(decodeEvent(route)),
protocol.stream.terminal ? Stream.takeUntil(protocol.stream.terminal) : (stream) => stream,
)
return events.pipe(
Stream.mapAccumEffect(
() => protocol.stream.initial(request),
protocol.stream.step,
protocol.stream.onHalt ? { onHalt: protocol.stream.onHalt } : undefined,
),
Stream.catchCause((cause) => Stream.fail(streamError(route, `Failed to read ${route} stream`, cause))),
requireTerminalEvent(route),
)
},
} satisfies Route<Body, Prepared>
return route
}
return build({ ...input, defaults: mergeRouteDefaults(undefined, input.defaults ?? {}) })
}
export function make<Body, Prepared, Frame, Event, State>(
input: MakeTransportInput<Body, Prepared, Frame, Event, State>,
): Route<Body, Prepared>
/**
* Build a `Route` by composing the four orthogonal pieces of a deployment:
*
* - `Protocol` — what is the API I'm speaking?
* - `Endpoint` — where do I send the request?
* - `Auth` — how do I authenticate it?
* - `Framing` — how do I cut the response stream into protocol frames?
*
* Plus optional `headers` for cross-cutting deployment concerns (provider
* version pins, per-deployment quirks).
*
* This is the canonical route constructor. If a new route does not fit
* this four-axis model, add a purpose-built constructor rather than widening
* the public surface preemptively.
*/
export function make<Body, Frame, Event, State>(
input: MakeInput<Body, Frame, Event, State>,
): Route<Body, HttpTransport.HttpPrepared<Frame>>
export function make<Body, Prepared, Frame, Event, State>(
input: MakeInput<Body, Frame, Event, State> | MakeTransportInput<Body, Prepared, Frame, Event, State>,
): Route<Body, Prepared> | Route<Body, HttpTransport.HttpPrepared<Frame>> {
if ("transport" in input) return makeFromTransport(input)
const protocol = input.protocol
return makeFromTransport({
id: input.id,
provider: input.provider,
providerMetadataKey: input.providerMetadataKey,
protocol,
endpoint: input.endpoint,
auth: input.auth,
headers: input.headers,
transport: HttpTransport.httpJson({ framing: input.framing }),
defaults: input.defaults,
})
}
const compile = Effect.fn("LLM.compile")(function* (request: LLMRequest, options?: StreamOptions) {
const resolved = applyCachePolicy(resolveRequestOptions(request))
const route = resolved.model.route
const body = yield* route.body
.from(resolved)
.pipe(Effect.flatMap(ProviderShared.validateWith(Schema.decodeUnknownEffect(route.body.schema))))
const prepared = yield* route.prepareTransport(body, resolved, options)
return {
request: resolved,
route,
body,
prepared,
}
})
/** @internal Test-only projection of the execution compiler; not exported from package barrels. */
export const compileRequest = Effect.fn("LLM.compileRequest")(function* (request: LLMRequest) {
const compiled = yield* compile(request)
return {
id: compiled.request.id ?? "request",
route: compiled.route.id,
protocol: compiled.route.protocol,
model: compiled.request.model,
body: compiled.body,
metadata: { transport: compiled.route.transport.id },
}
})
const streamRequestWith = (runtime: TransportRuntime) => (request: LLMRequest, options?: StreamOptions) =>
Stream.unwrap(
Effect.gen(function* () {
const compiled = yield* compile(request, options)
return compiled.route.streamPrepared(compiled.prepared, compiled.request, runtime)
}),
)
const generateWith = (stream: Interface["stream"]) =>
Effect.fn("LLM.generate")(function* (request: LLMRequest, options?: StreamOptions) {
const state = yield* stream(request, options).pipe(Stream.runFold(LLMResponse.empty, LLMResponse.reduce))
const response = LLMResponse.complete(state)
if (response) return response
return yield* incompleteStreamError(`${request.model.provider}/${request.model.route.id}`)
})
export function stream(request: LLMRequest, options?: StreamOptions): Stream.Stream<LLMEvent, AIError, Service> {
return Stream.unwrap(
Effect.gen(function* () {
return (yield* Service).stream(request, options)
}),
)
}
export function generate(request: LLMRequest, options?: StreamOptions): Effect.Effect<LLMResponse, AIError, Service> {
return Effect.gen(function* () {
return yield* (yield* Service).generate(request, options)
})
}
export const streamRequest = (request: LLMRequest, options?: StreamOptions) =>
Stream.unwrap(
Effect.gen(function* () {
return (yield* Service).stream(request, options)
}),
)
export const layer: Layer.Layer<Service, never, RequestExecutor.Service> = Layer.effect(
Service,
Effect.gen(function* () {
const stream = streamRequestWith({
http: yield* RequestExecutor.Service,
webSocket: Option.getOrUndefined(yield* Effect.serviceOption(WebSocketExecutor.Service)),
})
return Service.of({ stream, generate: generateWith(stream) })
}),
)
export const Route = { make } as const
export const LLMClient = {
Service,
layer,
stream,
generate,
} as const
@@ -19,21 +19,24 @@ export type EndpointPart<Body> = string | ((input: EndpointInput<Body>) => strin
* URL embeds the model id, region, or another body field (e.g. Bedrock,
* Gemini).
*/
export interface Endpoint<Body> {
export interface Definition<Body> {
readonly baseURL?: string
readonly path: EndpointPart<Body>
readonly query?: Record<string, string>
}
export type EndpointPatch<Body> = Partial<Endpoint<Body>>
export type EndpointPatch<Body> = Partial<Definition<Body>>
/** Construct an `Endpoint` from a path string or path function. */
export const path = <Body>(value: EndpointPart<Body>, options: Omit<Endpoint<Body>, "path"> = {}): Endpoint<Body> => ({
export const path = <Body>(
value: EndpointPart<Body>,
options: Omit<Definition<Body>, "path"> = {},
): Definition<Body> => ({
...options,
path: value,
})
export const merge = <Body>(base: Endpoint<Body>, patch: EndpointPatch<Body>): Endpoint<Body> => ({
export const merge = <Body>(base: Definition<Body>, patch: EndpointPatch<Body>): Definition<Body> => ({
...base,
...patch,
baseURL: patch.baseURL ?? base.baseURL,
@@ -44,7 +47,7 @@ export const merge = <Body>(base: Endpoint<Body>, patch: EndpointPatch<Body>): E
const renderPart = <Body>(part: EndpointPart<Body>, input: EndpointInput<Body>) =>
typeof part === "function" ? part(input) : part
export const render = <Body>(endpoint: Endpoint<Body>, input: EndpointInput<Body>) => {
export const render = <Body>(endpoint: Definition<Body>, input: EndpointInput<Body>) => {
const url = new URL(`${ProviderShared.trimBaseUrl(endpoint.baseURL ?? "")}${renderPart(endpoint.path, input)}`)
for (const [key, value] of Object.entries(endpoint.query ?? {})) url.searchParams.set(key, value)
return url
+317
View File
@@ -0,0 +1,317 @@
import { Cause, Context, Effect, Layer } from "effect"
import {
FetchHttpClient,
Headers,
HttpClient,
HttpClientError,
HttpClientRequest,
HttpClientResponse,
} from "effect/unstable/http"
import {
HttpContext,
HttpRateLimitDetails,
HttpRequestDetails,
HttpResponseDetails,
AIError,
TransportReason,
} from "../schema"
import { classifyProviderFailure } from "../provider-error"
export interface Interface {
readonly execute: (
request: HttpClientRequest.HttpClientRequest,
middleware?: HttpMiddleware,
) => Effect.Effect<HttpClientResponse.HttpClientResponse, AIError>
}
export type HttpHandler = (
request: HttpClientRequest.HttpClientRequest,
) => Effect.Effect<HttpClientResponse.HttpClientResponse, Error>
export type HttpMiddleware = (
request: HttpClientRequest.HttpClientRequest,
handler: HttpHandler,
) => Effect.Effect<HttpClientResponse.HttpClientResponse, Error>
export class Service extends Context.Service<Service, Interface>()("@opencode/AI/RequestExecutor") {}
const BODY_LIMIT = 16_384
const REDACTED = "<redacted>"
// One source of truth for what counts as a sensitive name across headers,
// URL query keys, and field names embedded inside request/response bodies.
//
// `SENSITIVE_NAME` is used as both a substring matcher (for free-form header
// names like `Authorization` / `X-API-Key`) and as the body-field alternation
// list. `SHORT_QUERY_NAME` covers anchored short keys like `?key=…` / `?sig=…`
// that are too generic to redact substring-style without false positives.
const SENSITIVE_NAME_SOURCE =
"authorization|api[-_]?key|access[-_]?token|refresh[-_]?token|id[-_]?token|token|secret|credential|signature|x-amz-signature"
const SENSITIVE_NAME = new RegExp(SENSITIVE_NAME_SOURCE, "i")
const SHORT_QUERY_NAME = /^(key|sig)$/i
const SENSITIVE_BODY_FIELD = new RegExp(`(?:${SENSITIVE_NAME_SOURCE}|key)`, "i")
const REDACT_JSON_FIELD = new RegExp(`("(?:${SENSITIVE_BODY_FIELD.source})"\\s*:\\s*)"[^"]*"`, "gi")
const REDACT_QUERY_FIELD = new RegExp(`((?:${SENSITIVE_BODY_FIELD.source})=)[^&\\s"]+`, "gi")
const isSensitiveHeaderName = (name: string) => SENSITIVE_NAME.test(name)
const isSensitiveQueryName = (name: string) => isSensitiveHeaderName(name) || SHORT_QUERY_NAME.test(name)
const redactHeaders = (headers: Headers.Headers, redactedNames: ReadonlyArray<string | RegExp>) =>
Object.fromEntries(
Object.entries(Headers.redact(headers, [...redactedNames, SENSITIVE_NAME])).map(([name, value]) => [
name,
String(value),
]),
)
const redactUrl = (value: string) => {
if (!URL.canParse(value)) return REDACTED
const url = new URL(value)
url.searchParams.forEach((_, key) => {
if (isSensitiveQueryName(key)) url.searchParams.set(key, REDACTED)
})
return url.toString()
}
const normalizedHeaders = (headers: Headers.Headers) =>
Object.fromEntries(Object.entries(headers).map(([key, value]) => [key.toLowerCase(), value]))
const requestId = (headers: Record<string, string>) => {
return (
headers["x-request-id"] ??
headers["request-id"] ??
headers["x-amzn-requestid"] ??
headers["x-amz-request-id"] ??
headers["x-goog-request-id"] ??
headers["cf-ray"]
)
}
const retryAfterMs = (headers: Record<string, string>) => {
const millis = Number(headers["retry-after-ms"])
if (Number.isFinite(millis)) return Math.max(0, millis)
const value = headers["retry-after"]
if (!value) return undefined
const seconds = Number(value)
if (Number.isFinite(seconds)) return Math.max(0, seconds * 1000)
const date = Date.parse(value)
if (!Number.isNaN(date)) return Math.max(0, date - Date.now())
return undefined
}
const addRateLimitValue = (target: Record<string, string>, key: string, value: string) => {
if (key.length > 0) target[key] = value
}
const rateLimitDetails = (headers: Record<string, string>, retryAfter: number | undefined) => {
const limit: Record<string, string> = {}
const remaining: Record<string, string> = {}
const reset: Record<string, string> = {}
Object.entries(headers).forEach(([name, value]) => {
const openaiLimit = /^x-ratelimit-limit-(.+)$/.exec(name)?.[1]
if (openaiLimit) return addRateLimitValue(limit, openaiLimit, value)
const openaiRemaining = /^x-ratelimit-remaining-(.+)$/.exec(name)?.[1]
if (openaiRemaining) return addRateLimitValue(remaining, openaiRemaining, value)
const openaiReset = /^x-ratelimit-reset-(.+)$/.exec(name)?.[1]
if (openaiReset) return addRateLimitValue(reset, openaiReset, value)
const anthropic = /^anthropic-ratelimit-(.+)-(limit|remaining|reset)$/.exec(name)
if (!anthropic) return
if (anthropic[2] === "limit") return addRateLimitValue(limit, anthropic[1], value)
if (anthropic[2] === "remaining") return addRateLimitValue(remaining, anthropic[1], value)
return addRateLimitValue(reset, anthropic[1], value)
})
if (
retryAfter === undefined &&
Object.keys(limit).length === 0 &&
Object.keys(remaining).length === 0 &&
Object.keys(reset).length === 0
)
return undefined
return new HttpRateLimitDetails({
retryAfterMs: retryAfter,
limit: Object.keys(limit).length === 0 ? undefined : limit,
remaining: Object.keys(remaining).length === 0 ? undefined : remaining,
reset: Object.keys(reset).length === 0 ? undefined : reset,
})
}
const requestDetails = (request: HttpClientRequest.HttpClientRequest, redactedNames: ReadonlyArray<string | RegExp>) =>
new HttpRequestDetails({
method: request.method,
url: redactUrl(request.url),
headers: redactHeaders(request.headers, redactedNames),
})
const responseDetails = (
response: HttpClientResponse.HttpClientResponse,
redactedNames: ReadonlyArray<string | RegExp>,
) =>
new HttpResponseDetails({
status: response.status,
headers: redactHeaders(response.headers, redactedNames),
})
const secretValues = (request: HttpClientRequest.HttpClientRequest) => {
const values = new Set<string>()
const add = (value: string) => {
if (value.length < 4) return
values.add(value)
values.add(encodeURIComponent(value))
}
Object.entries(request.headers).forEach(([name, value]) => {
if (!isSensitiveHeaderName(name)) return
add(value)
const bearer = /^Bearer\s+(.+)$/i.exec(value)?.[1]
if (bearer) add(bearer)
})
if (!URL.canParse(request.url)) return values
new URL(request.url).searchParams.forEach((value, key) => {
if (isSensitiveQueryName(key)) add(value)
})
return values
}
// Two passes: structural (redact `"name": "value"` and `name=value` patterns
// for any field name that looks sensitive) plus literal (replace any actual
// secret values we sent in the request, in case the response echoes one back).
const redactBody = (body: string, request: HttpClientRequest.HttpClientRequest) =>
Array.from(secretValues(request)).reduce(
(text, secret) => text.split(secret).join(REDACTED),
body.replace(REDACT_JSON_FIELD, `$1"${REDACTED}"`).replace(REDACT_QUERY_FIELD, `$1${REDACTED}`),
)
const responseBody = (body: string | void, request: HttpClientRequest.HttpClientRequest) => {
if (body === undefined) return {}
const redacted = redactBody(body, request)
if (redacted.length <= BODY_LIMIT) return { body: redacted }
return { body: redacted.slice(0, BODY_LIMIT), bodyTruncated: true }
}
const providerMessage = (status: number, body: { readonly body?: string }) => {
if (body.body && body.body.length <= 500) return `Provider request failed with HTTP ${status}: ${body.body}`
return `Provider request failed with HTTP ${status}`
}
const responseHttp = (input: {
readonly request: HttpClientRequest.HttpClientRequest
readonly response: HttpClientResponse.HttpClientResponse
readonly redactedNames: ReadonlyArray<string | RegExp>
readonly body: ReturnType<typeof responseBody>
readonly requestId?: string | undefined
readonly rateLimit?: HttpRateLimitDetails | undefined
}) =>
new HttpContext({
request: requestDetails(input.request, input.redactedNames),
response: responseDetails(input.response, input.redactedNames),
...input.body,
requestId: input.requestId,
rateLimit: input.rateLimit,
})
const statusError =
(request: HttpClientRequest.HttpClientRequest, redactedNames: ReadonlyArray<string | RegExp>) =>
(response: HttpClientResponse.HttpClientResponse) =>
Effect.gen(function* () {
if (response.status < 400) return response
const body = yield* response.text.pipe(Effect.catch(() => Effect.void))
const headers = normalizedHeaders(response.headers)
const retryAfter = retryAfterMs(headers)
const rateLimit = rateLimitDetails(headers, retryAfter)
const details = responseBody(body, request)
return yield* new AIError({
module: "RequestExecutor",
method: "execute",
reason: classifyProviderFailure({
status: response.status,
message: providerMessage(response.status, details),
retryAfterMs: retryAfter,
rateLimit,
http: responseHttp({
request,
response,
redactedNames,
body: details,
requestId: requestId(headers),
rateLimit,
}),
}),
})
})
const toHttpError = (redactedNames: ReadonlyArray<string | RegExp>) => (error: unknown) => {
const transportError = (input: {
readonly message: string
readonly kind?: string | undefined
readonly request?: HttpClientRequest.HttpClientRequest | undefined
}) =>
new AIError({
module: "RequestExecutor",
method: "execute",
reason: new TransportReason({
message: input.message,
kind: input.kind,
url: input.request ? redactUrl(input.request.url) : undefined,
http: input.request ? new HttpContext({ request: requestDetails(input.request, redactedNames) }) : undefined,
}),
})
if (Cause.isTimeoutError(error)) {
return transportError({ message: error.message, kind: "Timeout" })
}
if (!HttpClientError.isHttpClientError(error)) {
return transportError({ message: error instanceof Error ? error.message : "HTTP transport failed" })
}
const request = "request" in error ? error.request : undefined
if (error.reason._tag === "TransportError") {
return transportError({
message: error.reason.description ?? "HTTP transport failed",
kind: error.reason._tag,
request,
})
}
return transportError({
message: `HTTP transport failed: ${error.reason._tag}`,
kind: error.reason._tag,
request,
})
}
export const layer: Layer.Layer<Service, never, HttpClient.HttpClient> = Layer.effect(
Service,
Effect.gen(function* () {
const http = yield* HttpClient.HttpClient
const executeOnce = (request: HttpClientRequest.HttpClientRequest, middleware?: HttpMiddleware) =>
Effect.gen(function* () {
const redactedNames = yield* Headers.CurrentRedactedNames
if (!middleware)
return yield* http
.execute(request)
.pipe(Effect.mapError(toHttpError(redactedNames)), Effect.flatMap(statusError(request, redactedNames)))
const response = yield* middleware(request, (input) =>
http
.execute(input)
.pipe(Effect.mapError((cause) => (cause instanceof Error ? cause : new Error(String(cause))))),
).pipe(Effect.mapError(toHttpError(redactedNames)))
return yield* statusError(response.request, redactedNames)(response)
})
return Service.of({
execute: executeOnce,
})
}),
)
export const fetchLayer = layer.pipe(Layer.provide(FetchHttpClient.layer))
export * as RequestExecutor from "./executor"
@@ -1,6 +1,6 @@
import type { Stream } from "effect"
import * as ProviderShared from "../protocols/shared"
import type { LLMError } from "../schema"
import type { AIError } from "../schema"
/**
* Decode a streaming HTTP response body into provider-protocol frames.
@@ -16,12 +16,12 @@ import type { LLMError } from "../schema"
* The frame type is opaque to this layer; the protocol's `decode` step turns
* a frame into a typed chunk.
*/
export interface Framing<Frame> {
export interface Definition<Frame> {
readonly id: string
readonly frame: (bytes: Stream.Stream<Uint8Array, LLMError>) => Stream.Stream<Frame, LLMError>
readonly frame: (bytes: Stream.Stream<Uint8Array, AIError>) => Stream.Stream<Frame, AIError>
}
/** Server-Sent Events framing. Used by every JSON-streaming HTTP provider. */
export const sse: Framing<string> = { id: "sse", frame: ProviderShared.sseFraming }
export const sse: Definition<string> = { id: "sse", frame: ProviderShared.sseFraming }
export * as Framing from "./framing"
+26
View File
@@ -0,0 +1,26 @@
export { Route, LLMClient } from "./client"
export type {
Route as RouteShape,
RouteLanguageModelInput,
RouteRoutedLanguageModelInput,
RouteDefaults,
RouteDefaultsInput,
AnyRoute,
Interface as LLMClientShape,
Service as LLMClientService,
StreamOptions,
} from "./client"
export * from "./executor"
export { Auth } from "./auth"
export { AuthOptions } from "./auth-options"
export { Endpoint } from "./endpoint"
export { Framing } from "./framing"
export { Protocol } from "./protocol"
export { HttpTransport, WebSocketExecutor, WebSocketTransport } from "./transport"
export * as Transport from "./transport"
export type { Definition as AuthShape, AuthInput, Credential, CredentialError } from "./auth"
export type { ApiKeyMode, AuthOverride, ProviderAuthOption } from "./auth-options"
export type { Definition as EndpointFn, EndpointInput } from "./endpoint"
export type { Definition as FramingDef } from "./framing"
export type { Protocol as ProtocolDef } from "./protocol"
export type { HttpHandler, HttpMiddleware, Transport as TransportDef, TransportRuntime } from "./transport"
@@ -1,5 +1,5 @@
import { Schema, type Effect } from "effect"
import type { LLMError, LLMEvent, LLMRequest, ProtocolID } from "../schema"
import type { AIError, LLMEvent, LLMRequest, ProtocolID } from "../schema"
/**
* The semantic API contract of one model server family.
@@ -12,7 +12,8 @@ import type { LLMError, LLMEvent, LLMRequest, ProtocolID } from "../schema"
* Examples:
*
* - `OpenAIChat.protocol` chat completions style
* - `OpenAIResponses.protocol` responses API
* - `OpenResponses.protocol` provider-neutral Responses API baseline
* - `OpenAIResponses.protocol` OpenAI extensions to that baseline
* - `AnthropicMessages.protocol` messages API with content blocks
* - `Gemini.protocol` generateContent
* - `BedrockConverse.protocol` Converse with binary event-stream framing
@@ -46,7 +47,7 @@ export interface ProtocolBody<Body> {
/** Schema for the validated provider-native body sent as the JSON request. */
readonly schema: Schema.Codec<Body, unknown>
/** Build the provider-native body from a common `LLMRequest`. */
readonly from: (request: LLMRequest) => Effect.Effect<Body, LLMError>
readonly from: (request: LLMRequest) => Effect.Effect<Body, AIError>
}
export interface ProtocolStream<Frame, Event, State> {
@@ -55,7 +56,7 @@ export interface ProtocolStream<Frame, Event, State> {
/** Initial parser state. Called once per response with the resolved request. */
readonly initial: (request: LLMRequest) => State
/** Translate one event into emitted `LLMEvent`s plus the next state. */
readonly step: (state: State, event: Event) => Effect.Effect<readonly [State, ReadonlyArray<LLMEvent>], LLMError>
readonly step: (state: State, event: Event) => Effect.Effect<readonly [State, ReadonlyArray<LLMEvent>], AIError>
/** Optional request-completion signal for transports that do not end naturally. */
readonly terminal?: (event: Event) => boolean
/** Optional flush emitted when the framed stream ends. */
+114
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@@ -0,0 +1,114 @@
import { Effect, Stream } from "effect"
import { Headers, HttpClientRequest } from "effect/unstable/http"
import { Auth } from "../auth"
import { render as renderEndpoint } from "../endpoint"
import { Framing } from "../framing"
import type { HttpMiddleware, Transport, TransportPrepareInput } from "./index"
import * as ProviderShared from "../../protocols/shared"
import { mergeJsonRecords, type LLMRequest } from "../../schema"
export type JsonRequestInput<Body> = TransportPrepareInput<Body>
export interface JsonRequestParts<Body = unknown> {
readonly url: string
readonly jsonBody: Body | Record<string, unknown>
readonly bodyText: string
readonly headers: Headers.Headers
}
export interface HttpPrepared<Frame> {
readonly request: HttpClientRequest.HttpClientRequest
readonly framing: Framing.Definition<Frame>
readonly middleware?: HttpMiddleware
}
const applyQuery = (url: string, query: Record<string, string> | undefined) => {
if (!query) return url
const next = new URL(url)
Object.entries(query).forEach(([key, value]) => next.searchParams.set(key, value))
return next.toString()
}
const bodyWithOverlay = <Body>(body: Body, request: LLMRequest, encodeBody: (body: Body) => string) =>
Effect.gen(function* () {
if (request.http?.body === undefined) return { jsonBody: body, bodyText: encodeBody(body) }
if (ProviderShared.isRecord(body)) {
const overlaid = mergeJsonRecords(body, request.http.body) ?? {}
return { jsonBody: overlaid, bodyText: ProviderShared.encodeJson(overlaid) }
}
return yield* ProviderShared.invalidRequest("http.body can only overlay JSON object request bodies")
})
export const jsonRequestParts = <Body>(input: JsonRequestInput<Body>) =>
Effect.gen(function* () {
const url = applyQuery(
renderEndpoint(input.endpoint, { request: input.request, body: input.body }).toString(),
input.request.http?.query,
)
const body = yield* bodyWithOverlay(input.body, input.request, input.encodeBody)
const headers = yield* Auth.toEffect(input.auth)({
request: input.request,
method: "POST",
url,
body: body.bodyText,
headers: Headers.fromInput({
...input.headers?.({ request: input.request }),
...input.request.http?.headers,
}),
})
return { url, jsonBody: body.jsonBody, bodyText: body.bodyText, headers }
})
export interface HttpJsonInput<_Body, Frame> {
readonly framing: Framing.Definition<Frame>
}
export type HttpJsonPatch<Body, Frame> = Partial<HttpJsonInput<Body, Frame>>
export interface HttpJsonTransport<Body, Frame> extends Transport<Body, HttpPrepared<Frame>, Frame> {
readonly with: (patch: HttpJsonPatch<Body, Frame>) => HttpJsonTransport<Body, Frame>
}
export const httpJson = <Body, Frame>(input: HttpJsonInput<Body, Frame>): HttpJsonTransport<Body, Frame> => ({
id: "http-json",
with: (patch) => httpJson({ ...input, ...patch }),
prepare: (prepareInput) =>
Effect.gen(function* () {
const parts = yield* jsonRequestParts({ ...prepareInput })
const request = ProviderShared.jsonPost({
url: parts.url,
body: parts.bodyText,
headers: parts.headers,
})
return {
request,
framing: input.framing,
middleware: prepareInput.middleware,
}
}),
frames: (prepared, request, runtime) =>
Stream.unwrap(
runtime.http
.execute(prepared.request, prepared.middleware)
.pipe(
Effect.map((response) =>
prepared.framing.frame(
response.stream.pipe(
Stream.mapError((error) =>
ProviderShared.eventError(
`${request.model.provider}/${request.model.route.id}`,
`Failed to read ${request.model.provider}/${request.model.route.id} stream`,
ProviderShared.errorText(error),
),
),
),
),
),
),
),
})
export const sseJson = {
id: "http-json/sse",
with: <Body>() => httpJson<Body, string>({ framing: Framing.sse }),
} as const
+31
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@@ -0,0 +1,31 @@
import type { Effect, Stream } from "effect"
import { Endpoint } from "../endpoint"
import { Auth } from "../auth"
import type { HttpMiddleware, Interface as RequestExecutorInterface } from "../executor"
import type { Interface as WebSocketExecutorInterface } from "./websocket"
import type { AIError, LLMRequest } from "../../schema"
export interface TransportRuntime {
readonly http: RequestExecutorInterface
readonly webSocket?: WebSocketExecutorInterface
}
export interface Transport<Body, Prepared, Frame> {
readonly id: string
readonly prepare: (input: TransportPrepareInput<Body>) => Effect.Effect<Prepared, AIError>
readonly frames: (prepared: Prepared, request: LLMRequest, runtime: TransportRuntime) => Stream.Stream<Frame, AIError>
}
export interface TransportPrepareInput<Body> {
readonly body: Body
readonly request: LLMRequest
readonly endpoint: Endpoint.Definition<Body>
readonly auth: Auth.Definition
readonly encodeBody: (body: Body) => string
readonly headers?: (input: { readonly request: LLMRequest }) => Record<string, string>
readonly middleware?: HttpMiddleware
}
export * as HttpTransport from "./http"
export type { HttpHandler, HttpMiddleware } from "../executor"
export { WebSocketExecutor, WebSocketTransport } from "./websocket"

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