test(app): keep e2e mocks stack-compatible

test(app): migrate e2e fixtures to v2
2026-08-04 17:26:22 -04:00 · 2026-08-04 14:58:11 +08:00 · 2026-08-04 13:13:34 +08:00
65 changed files with 1523 additions and 1267 deletions
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        "@solid-primitives/event-bus": "1.1.2",
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@@ -1074,16 +1084,17 @@
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@@ -4933,7 +4944,7 @@

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+    "@opencode-ai/core/@ai-sdk/openai-compatible": ["@ai-sdk/openai-compatible@2.0.41", "", { "dependencies": { "@ai-sdk/provider": "3.0.8", "@ai-sdk/provider-utils": "4.0.23" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-kNAGINk71AlOXx10Dq/PXw4t/9XjdK8uxfpVElRwtSFMdeSiLVt58p9TPx4/FJD+hxZuVhvxYj9r42osxWq79g=="],
+
    "@opencode-ai/desktop/@actions/artifact": ["@actions/artifact@4.0.0", "", { "dependencies": { "@actions/core": "^1.10.0", "@actions/github": "^6.0.1", "@actions/http-client": "^2.1.0", "@azure/core-http": "^3.0.5", "@azure/storage-blob": "^12.15.0", "@octokit/core": "^5.2.1", "@octokit/plugin-request-log": "^1.0.4", "@octokit/plugin-retry": "^3.0.9", "@octokit/request": "^8.4.1", "@octokit/request-error": "^5.1.1", "@protobuf-ts/plugin": "^2.2.3-alpha.1", "archiver": "^7.0.1", "jwt-decode": "^3.1.2", "unzip-stream": "^0.3.1" } }, "sha512-HCc2jMJRAfviGFAh0FsOR/jNfWhirxl7W6z8zDtttt0GltwxBLdEIjLiweOPFl9WbyJRW1VWnPUSAixJqcWUMQ=="],

    "@opencode-ai/desktop/marked": ["marked@15.0.12", "", { "bin": { "marked": "bin/marked.js" } }, "sha512-8dD6FusOQSrpv9Z1rdNMdlSgQOIP880DHqnohobOmYLElGEqAL/JvxvuxZO16r4HtjTlfPRDC1hbvxC9dPN2nA=="],
@@ -6567,8 +6578,6 @@

    "babel-plugin-module-resolver/glob": ["glob@9.3.5", "", { "dependencies": { "fs.realpath": "^1.0.0", "minimatch": "^8.0.2", "minipass": "^4.2.4", "path-scurry": "^1.6.1" } }, "sha512-e1LleDykUz2Iu+MTYdkSsuWX8lvAjAcs0Xef0lNIu0S2wOAzuTxCJtcd9S3cijlwYF18EsU3rzb8jPVobxDh9Q=="],

-    "blume/@ai-sdk/openai-compatible": ["@ai-sdk/openai-compatible@2.0.37", "", { "dependencies": { "@ai-sdk/provider": "3.0.8", "@ai-sdk/provider-utils": "4.0.21" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-+POSFVcgiu47BK64dhsI6OpcDC0/VAE2ZSaXdXGNNhpC/ava++uSRJYks0k2bpfY0wwCTgpAWZsXn/dG2Yppiw=="],
-
    "blume/@astrojs/mdx": ["@astrojs/mdx@7.0.3", "", { "dependencies": { "@astrojs/internal-helpers": "0.10.1", "@astrojs/markdown-remark": "7.2.1", "@mdx-js/mdx": "^3.1.1", "acorn": "^8.16.0", "es-module-lexer": "^2.0.0", "estree-util-visit": "^2.0.0", "hast-util-to-html": "^9.0.5", "piccolore": "^0.1.3", "rehype-raw": "^7.0.0", "remark-gfm": "^4.0.1", "remark-smartypants": "^3.0.2", "source-map": "^0.7.6", "unist-util-visit": "^5.1.0", "vfile": "^6.0.3" }, "peerDependencies": { "@astrojs/markdown-satteri": "^0.3.1", "astro": "^7.0.0" }, "optionalPeers": ["@astrojs/markdown-satteri"] }, "sha512-RxyIwU0uFam5ftwqKOjpIdhnFxZ/kEikeimLyQy3eGXbHT8WgRGzzesOIHVU8+m9TY8ag5WVOyvV24/GyqPdPQ=="],

    "blume/@clack/prompts": ["@clack/prompts@1.7.0", "", { "dependencies": { "@clack/core": "1.4.3", "fast-string-width": "^3.0.2", "fast-wrap-ansi": "^0.2.0", "sisteransi": "^1.0.5" } }, "sha512-y7/yvZ2TPAnR9+jnc00klvNNLkJiXFFrQA/hlLCcxA9a2A4zQIOimyFQ9XfwYKiGD1fb5GY8vbKIIgO8d5Tb2A=="],
@@ -6705,6 +6714,8 @@

    "gcp-metadata/google-logging-utils": ["google-logging-utils@1.1.3", "", {}, "sha512-eAmLkjDjAFCVXg7A1unxHsLf961m6y17QFqXqAXGj/gVkKFrEICfStRfwUlGNfeCEjNRa32JEWOUTlYXPyyKvA=="],

+    "gitlab-ai-provider/openai": ["openai@6.49.0", "", { "peerDependencies": { "@aws-sdk/credential-provider-node": ">=3.972.0 <4", "@smithy/hash-node": ">=4.3.0 <5", "@smithy/signature-v4": ">=5.4.0 <6", "ws": "^8.18.0", "zod": "^3.25 || ^4.0" }, "optionalPeers": ["@aws-sdk/credential-provider-node", "@smithy/hash-node", "@smithy/signature-v4", "ws", "zod"] }, "sha512-aYCc0C6L864eR6WSYIwQGyXriw/nIyZx0ObvhzOEVuk0zoBDpynjSbrionWI7q65B5H8jJX0DXR9snEzM6bfPg=="],
+
    "gitlab-ai-provider/zod": ["zod@3.25.76", "", {}, "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ=="],

    "globby/ignore": ["ignore@5.3.2", "", {}, "sha512-hsBTNUqQTDwkWtcdYI2i06Y/nUBEsNEDJKjWdigLvegy8kDuJAS8uRlpkkcQpyEXL0Z/pjDy5HBmMjRCJ2gq+g=="],
@@ -7369,6 +7380,10 @@

    "@octokit/rest/@octokit/core/before-after-hook": ["before-after-hook@4.0.0", "", {}, "sha512-q6tR3RPqIB1pMiTRMFcZwuG5T8vwp+vUvEG0vuI6B+Rikh5BfPp2fQ82c925FOs+b0lcFQ8CFrL+KbilfZFhOQ=="],

+    "@opencode-ai/core/@ai-sdk/openai/@ai-sdk/provider": ["@ai-sdk/provider@3.0.14", "", { "dependencies": { "json-schema": "^0.4.0" } }, "sha512-5X1k57JBJ4H7H1QjX7CnJYAB1I19r/trVZTMcSms7/kLNZ8RaU4Nt2agcwZzv82Hfx6Q7/TOLU7agAKeFfc8cA=="],
+
+    "@opencode-ai/core/@ai-sdk/openai/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@4.0.38", "", { "dependencies": { "@ai-sdk/provider": "3.0.14", "@standard-schema/spec": "^1.1.0", "eventsource-parser": "^3.0.8" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-/HHGmtKllqjg1OLc023v9w9kK3laW7Z6TzfZukYQWCsGBbzB9p60zTvvpXFVcs44NZBVXL3viOa1HRKUbeee8g=="],
+
    "@opencode-ai/desktop/@actions/artifact/@actions/core": ["@actions/core@1.11.1", "", { "dependencies": { "@actions/exec": "^1.1.1", "@actions/http-client": "^2.0.1" } }, "sha512-hXJCSrkwfA46Vd9Z3q4cpEpHB1rL5NG04+/rbqW9d3+CSvtB1tYe8UTpAlixa1vj0m/ULglfEK2UKxMGxCxv5A=="],

    "@opencode-ai/desktop/@actions/artifact/@actions/http-client": ["@actions/http-client@2.2.3", "", { "dependencies": { "tunnel": "^0.0.6", "undici": "^5.25.4" } }, "sha512-mx8hyJi/hjFvbPokCg4uRd4ZX78t+YyRPtnKWwIl+RzNaVuFpQHfmlGVfsKEJN8LwTCvL+DfVgAM04XaHkm6bA=="],
@@ -7605,8 +7620,6 @@

    "babel-plugin-module-resolver/glob/path-scurry": ["path-scurry@1.11.1", "", { "dependencies": { "lru-cache": "^10.2.0", "minipass": "^5.0.0 || ^6.0.2 || ^7.0.0" } }, "sha512-Xa4Nw17FS9ApQFJ9umLiJS4orGjm7ZzwUrwamcGQuHSzDyth9boKDaycYdDcZDuqYATXw4HFXgaqWTctW/v1HA=="],

-    "blume/@ai-sdk/openai-compatible/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@4.0.21", "", { "dependencies": { "@ai-sdk/provider": "3.0.8", "@standard-schema/spec": "^1.1.0", "eventsource-parser": "^3.0.6" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-MtFUYI1/8mgDvRmaBDjbLJPFFrMG777AvSgyIFQtZHIMzm88R/12vYBBpnk7pfiWLFE1DSZzY4WDYzGbKAcmiw=="],
-
    "blume/@astrojs/mdx/@astrojs/internal-helpers": ["@astrojs/internal-helpers@0.10.1", "", { "dependencies": { "@types/hast": "^3.0.4", "@types/mdast": "^4.0.4", "js-yaml": "^4.1.1", "picomatch": "^4.0.4", "retext-smartypants": "^6.2.0", "shiki": "^4.0.2", "smol-toml": "^1.6.0", "unified": "^11.0.5" } }, "sha512-5phcroT/vmOOrYuuAxtkbPixy5hePtlz9i8K4OeDv3dNK6/UQRuXPOSRTxIOBbUY5Sonw2UaxjbuVc43Mcir6Q=="],

    "blume/@astrojs/mdx/@astrojs/markdown-remark": ["@astrojs/markdown-remark@7.2.1", "", { "dependencies": { "@astrojs/internal-helpers": "0.10.1", "@astrojs/prism": "4.0.2", "github-slugger": "^2.0.0", "hast-util-from-html": "^2.0.3", "hast-util-to-text": "^4.0.2", "mdast-util-definitions": "^6.0.0", "rehype-raw": "^7.0.0", "rehype-stringify": "^10.0.1", "remark-gfm": "^4.0.1", "remark-parse": "^11.0.0", "remark-rehype": "^11.1.2", "remark-smartypants": "^3.0.2", "unified": "^11.0.5", "unist-util-remove-position": "^5.0.0", "unist-util-visit": "^5.1.0", "unist-util-visit-parents": "^6.0.2", "vfile": "^6.0.3" } }, "sha512-jPVNIqTvk+yKviikszv/Y1U4jGUSKpp/Nw48QZV4qjWgp70j4Lkq3lhSDRbWwCfgKvEyO9GHuVbV1dM2WYXy1w=="],
@@ -161,6 +161,7 @@
    "@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",
@@ -5,7 +5,7 @@ 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 type { HttpRequestTransform, Transport, TransportRuntime } from "./transport"
 import { WebSocketExecutor } from "./transport"
 import type { Protocol } from "./protocol"
 import { applyCachePolicy } from "../cache-policy"
@@ -155,7 +155,7 @@ export interface Interface {
 }

 export interface StreamOptions {
-  readonly http?: HttpMiddleware
+  readonly transform?: HttpRequestTransform
 }

 export interface StreamMethod {
@@ -307,7 +307,7 @@ function makeFromTransport<Body, Prepared, Frame, Event, State>(
          auth: routeInput.auth ?? Auth.none,
          encodeBody,
          headers: routeInput.headers,
-          middleware: options?.http,
+          transform: options?.transform,
        }),
      streamPrepared: (prepared: Prepared, request: LLMRequest, runtime: TransportRuntime) => {
        const route = `${request.model.provider}/${request.model.route.id}`
@@ -20,18 +20,9 @@ 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
@@ -270,7 +261,7 @@ const toHttpError = (redactedNames: ReadonlyArray<string | RegExp>) => (error: u
    return transportError({ message: error.message, kind: "Timeout" })
  }
  if (!HttpClientError.isHttpClientError(error)) {
-    return transportError({ message: error instanceof Error ? error.message : "HTTP transport failed" })
+    return transportError({ message: "HTTP transport failed" })
  }
  const request = "request" in error ? error.request : undefined
  if (error.reason._tag === "TransportError") {
@@ -291,20 +282,12 @@ export const layer: Layer.Layer<Service, never, HttpClient.HttpClient> = Layer.e
  Service,
  Effect.gen(function* () {
    const http = yield* HttpClient.HttpClient
-    const executeOnce = (request: HttpClientRequest.HttpClientRequest, middleware?: HttpMiddleware) =>
+    const executeOnce = (request: HttpClientRequest.HttpClientRequest) =>
      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 yield* http
+          .execute(request)
+          .pipe(Effect.mapError(toHttpError(redactedNames)), Effect.flatMap(statusError(request, redactedNames)))
      })
    return Service.of({
      execute: executeOnce,
@@ -23,4 +23,4 @@ export type { ApiKeyMode, AuthOverride, ProviderAuthOption } from "./auth-option
 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"
+export type { HttpRequest, HttpRequestTransform, Transport as TransportDef, TransportRuntime } from "./transport"
@@ -3,7 +3,7 @@ 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 type { Transport, TransportPrepareInput } from "./index"
 import * as ProviderShared from "../../protocols/shared"
 import { mergeJsonRecords, type LLMRequest } from "../../schema"

@@ -19,7 +19,6 @@ export interface JsonRequestParts<Body = unknown> {
 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) => {
@@ -75,21 +74,21 @@ export const httpJson = <Body, Frame>(input: HttpJsonInput<Body, Frame>): HttpJs
  prepare: (prepareInput) =>
    Effect.gen(function* () {
      const parts = yield* jsonRequestParts({ ...prepareInput })
-      const request = ProviderShared.jsonPost({
-        url: parts.url,
-        body: parts.bodyText,
-        headers: parts.headers,
-      })
+      const request = { url: parts.url, method: "POST", headers: { ...parts.headers }, body: parts.bodyText }
+      yield* (prepareInput.transform?.(request) ?? Effect.void)
      return {
-        request,
+        request: ProviderShared.jsonPost({
+          url: request.url,
+          body: request.body ?? "",
+          headers: Headers.fromInput(request.headers),
+        }),
        framing: input.framing,
-        middleware: prepareInput.middleware,
      }
    }),
  frames: (prepared, request, runtime) =>
    Stream.unwrap(
      runtime.http
-        .execute(prepared.request, prepared.middleware)
+        .execute(prepared.request)
        .pipe(
          Effect.map((response) =>
            prepared.framing.frame(
@@ -1,7 +1,7 @@
 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 RequestExecutorInterface } from "../executor"
 import type { Interface as WebSocketExecutorInterface } from "./websocket"
 import type { AIError, LLMRequest } from "../../schema"

@@ -10,6 +10,15 @@ export interface TransportRuntime {
  readonly webSocket?: WebSocketExecutorInterface
 }

+export interface HttpRequest {
+  url: string
+  readonly method: string
+  headers: Record<string, string>
+  body: string | undefined
+}
+
+export type HttpRequestTransform = (request: HttpRequest) => Effect.Effect<void>
+
 export interface Transport<Body, Prepared, Frame> {
  readonly id: string
  readonly prepare: (input: TransportPrepareInput<Body>) => Effect.Effect<Prepared, AIError>
@@ -23,9 +32,8 @@ export interface TransportPrepareInput<Body> {
  readonly auth: Auth.Definition
  readonly encodeBody: (body: Body) => string
  readonly headers?: (input: { readonly request: LLMRequest }) => Record<string, string>
-  readonly middleware?: HttpMiddleware
+  readonly transform?: HttpRequestTransform
 }

 export * as HttpTransport from "./http"
-export type { HttpHandler, HttpMiddleware } from "../executor"
 export { WebSocketExecutor, WebSocketTransport } from "./websocket"
@@ -1,6 +1,6 @@
 import { describe, expect, test } from "bun:test"
-import { Effect, Ref, Schema } from "effect"
-import { HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { Effect, Schema } from "effect"
+import { HttpClientRequest } from "effect/unstable/http"
 import { LLM, mergeProviderOptions } from "../src"
 import { AnthropicMessages, OpenAIChat } from "../src/protocols"
 import { Auth, LLMClient } from "../src/route"
@@ -146,16 +146,12 @@ describe("request option precedence", () => {
        prompt: "Say hello.",
      }),
      {
-        http: (request, handler) =>
-          Effect.gen(function* () {
-            return yield* handler(
-              request.pipe(
-                HttpClientRequest.setUrl("https://proxy.test/v1/chat/completions"),
-                HttpClientRequest.setMethod("PUT"),
-                HttpClientRequest.setHeader("x-plugin", "transformed"),
-                HttpClientRequest.bodyText(JSON.stringify({ transformed: true }), "application/custom+json"),
-              ),
-            )
+        transform: (request) =>
+          Effect.sync(() => {
+            expect(request.headers.authorization).toBe("Bearer fresh-key")
+            request.url = "https://proxy.test/v1/chat/completions"
+            request.headers["x-plugin"] = "transformed"
+            request.body = JSON.stringify({ transformed: true })
          }),
      },
    ).pipe(
@@ -164,9 +160,7 @@ describe("request option precedence", () => {
          Effect.gen(function* () {
            const web = yield* HttpClientRequest.toWeb(input.request).pipe(Effect.orDie)
            expect(web.url).toBe("https://proxy.test/v1/chat/completions")
-            expect(web.method).toBe("PUT")
            expect(web.headers.get("x-plugin")).toBe("transformed")
-            expect(web.headers.get("content-type")).toBe("application/custom+json")
            expect(decodeJson(input.text)).toEqual({ transformed: true })
            return input.respond(sseEvents(deltaChunk({}, "stop")), {
              headers: { "content-type": "text/event-stream" },
@@ -177,82 +171,6 @@ describe("request option precedence", () => {
    ),
  )

-  it.effect("transforms the HTTP response before protocol decoding", () =>
-    Effect.gen(function* () {
-      const response = yield* LLMClient.generate(
-        LLM.request({
-          model: OpenAIChat.route
-            .with({ endpoint: { baseURL: "https://api.openai.test/v1/" }, auth: Auth.bearer("test") })
-            .model({ id: "gpt-4o-mini" }),
-          prompt: "Say hello.",
-        }),
-        {
-          http: (request, handler) =>
-            Effect.gen(function* () {
-              const response = yield* handler(request)
-              return HttpClientResponse.fromWeb(
-                response.request,
-                new Response((yield* response.text).replace("network", "hooked"), {
-                  status: response.status,
-                  headers: response.headers,
-                }),
-              )
-            }),
-        },
-      ).pipe(
-        Effect.provide(
-          dynamicResponse((input) =>
-            Effect.succeed(
-              input.respond(sseEvents(deltaChunk({ content: "network" }, "stop")), {
-                headers: { "content-type": "text/event-stream" },
-              }),
-            ),
-          ),
-        ),
-      )
-
-      expect(response.text).toBe("hooked")
-    }),
-  )
-
-  it.effect("can inspect an error response and retry the native request", () =>
-    Effect.gen(function* () {
-      const attempts = yield* Ref.make(0)
-      const response = yield* LLMClient.generate(
-        LLM.request({
-          model: OpenAIChat.route
-            .with({ endpoint: { baseURL: "https://api.openai.test/v1/" }, auth: Auth.bearer("stale") })
-            .model({ id: "gpt-4o-mini" }),
-          prompt: "Say hello.",
-        }),
-        {
-          http: (request, handler) =>
-            Effect.gen(function* () {
-              const response = yield* handler(request)
-              expect(response.status).toBe(401)
-              return yield* handler(HttpClientRequest.setHeader(request, "authorization", "Bearer refreshed"))
-            }),
-        },
-      ).pipe(
-        Effect.provide(
-          dynamicResponse((input) =>
-            Effect.gen(function* () {
-              yield* Ref.update(attempts, (value) => value + 1)
-              if (input.request.headers.authorization !== "Bearer refreshed")
-                return input.respond("unauthorized", { status: 401 })
-              return input.respond(sseEvents(deltaChunk({ content: "retried" }, "stop")), {
-                headers: { "content-type": "text/event-stream" },
-              })
-            }),
-          ),
-        ),
-      )
-
-      expect(response.text).toBe("retried")
-      expect(yield* Ref.get(attempts)).toBe(2)
-    }),
-  )
-
  it.effect("applies raw body overlays after protocol lowering", () =>
    LLMClient.generate(
      LLM.request({
@@ -67,18 +67,6 @@ const expectAIError = (error: unknown) => {
 const errorHttp = (error: AIError) => ("http" in error.reason ? error.reason.http : undefined)

 describe("RequestExecutor", () => {
-  it.effect("preserves middleware error messages", () =>
-    Effect.gen(function* () {
-      const executor = yield* RequestExecutor.Service
-      const error = yield* executor
-        .execute(request, () => Effect.fail(new Error("plugin rejected request")))
-        .pipe(Effect.flip)
-
-      expectAIError(error)
-      expect(error.reason.message).toBe("plugin rejected request")
-    }).pipe(Effect.provide(responsesLayer([]))),
-  )
-
  it.effect("classifies context overflow responses", () =>
    Effect.gen(function* () {
      const executor = yield* RequestExecutor.Service
@@ -4,15 +4,13 @@ import { SessionStatusEvent } from "@opencode-ai/schema/session-status-event"
 import { SessionV1 } from "@opencode-ai/schema/session-v1"
 import type {
  AssistantMessage,
-  GlobalEvent,
  Message,
  Part,
-  Session,
-  SessionStatus,
  ToolPart,
  ToolState,
  UserMessage,
 } from "@opencode-ai/sdk/v2/client"
+import type { SessionV1Info, SessionStatus } from "@opencode-ai/client/promise"
 import { expect, type Page } from "@playwright/test"
 import { Schema } from "effect"
 import { mockOpenCodeServer } from "../../utils/mock-server"
@@ -27,18 +25,29 @@ export const assistantID = "msg_1001_timeline_assistant"
 export const title = "Timeline visual stability"
 export const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }

-type TimelinePayload = Extract<
-  GlobalEvent["payload"],
-  {
-    type:
-      | "message.updated"
-      | "message.removed"
-      | "message.part.updated"
-      | "message.part.removed"
-      | "message.part.delta"
-      | "session.status"
+type Session = SessionV1Info
+type GlobalEvent = {
+  directory: string
+  project?: string
+  workspace?: string
+  payload: {
+    id: string
+    type: string
+    properties: Record<string, unknown>
  }
->
+}
+
+type TimelineProperties = {
+  "message.updated": { sessionID: string; info: Message }
+  "message.removed": { sessionID: string; messageID: string }
+  "message.part.updated": { sessionID: string; part: Part; time: number }
+  "message.part.removed": { sessionID: string; messageID: string; partID: string }
+  "message.part.delta": { sessionID: string; messageID: string; partID: string; field: string; delta: string }
+  "session.status": { sessionID: string; status: SessionStatus }
+}
+type TimelinePayload = {
+  [Type in keyof TimelineProperties]: { id: string; type: Type; properties: TimelineProperties[Type] }
+}[keyof TimelineProperties]

 type DeepReadonly<Value> = Value extends readonly unknown[]
  ? { readonly [Key in keyof Value]: DeepReadonly<Value[Key]> }
@@ -97,7 +106,6 @@ export async function setupTimeline(
    locale?: string
    deviceScaleFactor?: number
    seedHistory?: boolean
-    protocol?: "v1" | "v2"
  } = {},
 ) {
  const sessions = input.sessions ?? [session()]
@@ -115,7 +123,7 @@ export async function setupTimeline(
    retry: input.eventRetry ?? 20,
  })
  await mockOpenCodeServer(page, {
-    protocol: input.protocol,
+    protocol: "v2",
    directory,
    project: project(),
    provider: provider(),
@@ -235,7 +243,7 @@ export function event(type: TimelinePayload["type"], properties: TimelinePayload
 }

 export function validateTimelineEvent(input: unknown): TimelineEvent {
-  return decodeEvent(input, decodeOptions)
+  return decodeEvent(input, decodeOptions) as TimelineEvent
 }

 export function validateTimelineMessages(input: readonly TimelineMessage[]): TimelineMessage[] {
@@ -460,7 +468,7 @@ export function toolPart(
  input: Record<string, unknown>,
  options: ToolOptions<ToolStatus> = {},
 ): Omit<ToolPart, "sessionID" | "messageID"> {
-  const base = { id, type: "tool" as const, callID: `call_${id}`, tool }
+  const base = { id, type: "tool" as const, callID: id, tool }
  if (state === "pending") return { ...base, state: { status: state, input, raw: "" } }
  if (state === "running")
    return {
@@ -1,6 +1,121 @@
 import { expect, test } from "bun:test"
+import type { SessionMessageInfo } from "@opencode-ai/client/promise"
 import type { Page, Route } from "@playwright/test"
-import { mockOpenCodeServer } from "../../utils/mock-server"
+import { currentMessage, mockOpenCodeServer } from "../../utils/mock-server"
+
+test("preserves current messages", () => {
+  const message = {
+    id: "msg_current",
+    type: "user",
+    time: { created: 1 },
+    text: "current",
+    files: [{ data: "e30=", mime: "application/json", source: { type: "inline" } }],
+  } satisfies SessionMessageInfo
+
+  expect(currentMessage(message)).toBe(message)
+})
+
+test("converts rich legacy messages to current message types", () => {
+  expect(
+    currentMessage({
+      info: { id: "msg_user", role: "user", time: { created: 1 } },
+      parts: [
+        { type: "text", text: "Use @src/a.ts with @explore" },
+        {
+          type: "file",
+          mime: "application/json",
+          filename: "data.json",
+          url: "data:application/json;base64,e30=",
+        },
+        {
+          type: "file",
+          mime: "text/plain",
+          filename: "a.ts",
+          url: "src/a.ts",
+          source: { type: "file", text: { value: "@src/a.ts", start: 4, end: 13 } },
+        },
+        { type: "agent", name: "explore", source: { value: "@explore", start: 19, end: 27 } },
+      ],
+    }),
+  ).toEqual({
+    id: "msg_user",
+    type: "user",
+    time: { created: 1 },
+    text: "Use @src/a.ts with @explore",
+    files: [
+      { data: "e30=", mime: "application/json", name: "data.json", source: { type: "inline" } },
+      {
+        data: "",
+        mime: "text/plain",
+        name: "a.ts",
+        source: { type: "uri", uri: "src/a.ts" },
+        mention: { text: "@src/a.ts", start: 4, end: 13 },
+      },
+    ],
+    agents: [{ name: "explore", mention: { text: "@explore", start: 19, end: 27 } }],
+  })
+
+  expect(
+    currentMessage({
+      info: {
+        id: "msg_assistant",
+        role: "assistant",
+        time: { created: 2, completed: 5 },
+        agent: "explore",
+        modelID: "model",
+        providerID: "provider",
+        variant: "high",
+        cost: 0.5,
+        tokens: { input: 1, output: 2, reasoning: 3, cache: { read: 4, write: 5 } },
+        finish: "tool-calls",
+        error: { name: "MessageAbortedError", data: { message: "Stopped" } },
+      },
+      parts: [
+        { type: "text", text: "Answer" },
+        { type: "reasoning", text: "Thinking", time: { start: 2, end: 3 } },
+        {
+          id: "prt_tool",
+          callID: "call_tool",
+          type: "tool",
+          tool: "read",
+          state: {
+            status: "completed",
+            input: { filePath: "src/a.ts" },
+            output: "contents",
+            metadata: { title: "a.ts" },
+            time: { start: 3, end: 4 },
+          },
+        },
+      ],
+    }),
+  ).toEqual({
+    id: "msg_assistant",
+    type: "assistant",
+    time: { created: 2, completed: 5 },
+    agent: "explore",
+    model: { id: "model", providerID: "provider", variant: "high" },
+    cost: 0.5,
+    tokens: { input: 1, output: 2, reasoning: 3, cache: { read: 4, write: 5 } },
+    finish: "tool-calls",
+    error: { type: "MessageAbortedError", message: "Stopped" },
+    content: [
+      { type: "text", text: "Answer" },
+      { type: "reasoning", text: "Thinking", time: { created: 2, completed: 3 } },
+      {
+        type: "tool",
+        id: "call_tool",
+        name: "read",
+        time: { created: 3, ran: 3, completed: 4 },
+        state: {
+          status: "completed",
+          input: { filePath: "src/a.ts" },
+          content: [{ type: "text", text: "contents" }],
+          metadata: { title: "a.ts" },
+        },
+      },
+    ],
+  })
+})

 test("applies message latency after a list response gate is released", async () => {
  const events: string[] = []
@@ -30,7 +145,7 @@ test("applies message latency after a list response gate is released", async ()
  })

  const response = handler!({
-    request: () => ({ url: () => "http://127.0.0.1:4096/session/session/message" }),
+    request: () => ({ url: () => "http://127.0.0.1:4096/api/session/session/message" }),
    fulfill: () => {
      events.push("fulfill")
      return Promise.resolve()
@@ -85,21 +85,17 @@ async function mockServers(page: Page, requests: string[]) {
    const current = url.origin === serverA ? sessionA : sessionB
    const directory = url.searchParams.get("directory")
    if (directory && directory !== current.directory) return json(route, { name: "InvalidDirectory" }, 500)
-    if (url.pathname === "/global/event" || url.pathname === "/event" || url.pathname === "/api/event")
+    if (url.pathname === "/api/event")
      return sse(route)
-    if (url.pathname === "/global/health") return json(route, {}, 404)
    if (url.pathname === "/api/health") return json(route, { pid: 1 })
    if (url.pathname === "/api/session") return json(route, { data: [currentSession(current)], cursor: {} })
    if (url.pathname === "/api/session/active") return json(route, { data: {} })
    if (url.pathname === `/api/session/${current.id}`) return json(route, { data: currentSession(current) })
    if (url.pathname === `/api/session/${current.id}/message`) return json(route, { data: [], cursor: {} })
-    if (url.pathname === `/session/${current.id}`) return json(route, current)
    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
-    if (url.pathname === `/session/${current.id}/message`) return json(route, [])
    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
      return json(route, [])
-    if (["/global/config", "/config", "/provider/auth", "/mcp"].includes(url.pathname)) return json(route, {})
    if (url.pathname === "/provider")
      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
@@ -3,7 +3,7 @@ import { expect, test, type Page, type Route } from "@playwright/test"
 import { installSseTransport } from "../utils/sse-transport"
 import { currentSession } from "../utils/mock-server"

-const serverA = "http://127.0.0.1:4096"
+const serverA = `http://127.0.0.1:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 const serverB = "http://127.0.0.1:4097"
 const directoryA = "C:/server-a"
 const directoryB = "/home/server-b"
@@ -32,7 +32,7 @@ test("session settings use the remote server context", async ({ page }) => {
    .poll(() =>
      permissionRequests.some((request) => {
        const url = new URL(request)
-        return url.origin === serverB && url.searchParams.get("directory") === directoryB
+        return url.origin === serverB && url.searchParams.get("location[directory]") === directoryB
      }),
    )
    .toBe(true)
@@ -67,7 +67,7 @@ test("auto-accept responds for an unfocused server session", async ({ page }) =>
    .poll(() =>
      permissionRequests.some((request) => {
        const url = new URL(request)
-        return url.origin === serverA && url.searchParams.get("directory") === directoryA
+        return url.origin === serverA && url.searchParams.get("location[directory]") === directoryA
      }),
    )
    .toBe(true)
@@ -99,10 +99,10 @@ test("auto-accept responds for an unfocused server session", async ({ page }) =>
    .toEqual([
      {
        origin: serverA,
-        directory: directoryA,
+        directory: undefined,
        sessionID: sessionA.id,
        permissionID: "permission-background-a",
-        body: { response: "once" },
+        body: { reply: "once" },
      },
    ])

@@ -127,17 +127,17 @@ test("auto-accept responds for an unfocused server session", async ({ page }) =>
    .toEqual([
      {
        origin: serverA,
-        directory: directoryA,
+        directory: undefined,
        sessionID: sessionA.id,
        permissionID: "permission-background-a",
-        body: { response: "once" },
+        body: { reply: "once" },
      },
      {
        origin: serverA,
-        directory: directoryA,
+        directory: undefined,
        sessionID: childSessionA.id,
        permissionID: "permission-background-a-child",
-        body: { response: "once" },
+        body: { reply: "once" },
      },
    ])
 })
@@ -168,8 +168,8 @@ async function mockServers(page: Page, permissionRequests: string[], permissionR
    const remote = url.origin === serverB
    const directory = remote ? directoryB : directoryA
    const sessions = remote ? [sessionB] : [sessionA, childSessionA]
-    const requestDirectory = url.searchParams.get("directory")
-    const response = url.pathname.match(/^\/session\/([^/]+)\/permissions\/([^/]+)$/)
+    const requestDirectory = url.searchParams.get("location[directory]")
+    const response = url.pathname.match(/^\/api\/session\/([^/]+)\/permission\/([^/]+)\/reply$/)
    if (route.request().method() === "POST" && response) {
      permissionResponses.push({
        origin: url.origin,
@@ -181,13 +181,21 @@ async function mockServers(page: Page, permissionRequests: string[], permissionR
      return json(route, true)
    }
    if (requestDirectory && requestDirectory !== directory) return json(route, { name: "InvalidDirectory" }, 500)
-    if (url.pathname === "/global/event" || url.pathname === "/event" || url.pathname === "/api/event")
+    if (url.pathname === "/api/event")
      return sse(route)
-    if (url.pathname === "/global/health") return json(route, { healthy: true })
-    if (url.pathname === "/api/provider" || url.pathname === "/api/model" || url.pathname === "/api/agent")
-      return json(route, { data: [] })
-    if (url.pathname === "/api/model/default") return json(route, { data: null })
-    if (["/api/command", "/api/reference", "/api/permission/request", "/api/question/request"].includes(url.pathname))
+    if (url.pathname === "/api/provider")
+      return json(route, {
+        location: { directory },
+        data: [{ id: remote ? "server-b" : "server-a", name: remote ? "Server B Provider" : "Server A Provider", package: "test" }],
+      })
+    if (url.pathname === "/api/model") return json(route, { location: { directory }, data: [model(remote)] })
+    if (url.pathname === "/api/model/default") return json(route, { location: { directory }, data: model(remote) })
+    if (url.pathname === "/api/agent") return json(route, { location: { directory }, data: [] })
+    if (url.pathname === "/api/permission/request") {
+      permissionRequests.push(url.toString())
+      return json(route, { location: { directory }, data: [] })
+    }
+    if (["/api/command", "/api/reference", "/api/question/request"].includes(url.pathname))
      return json(route, { location: { directory }, data: [] })
    if (url.pathname === "/api/mcp") return json(route, { location: { directory }, data: [] })
    if (url.pathname === "/api/mcp/resource")
@@ -211,8 +219,6 @@ async function mockServers(page: Page, permissionRequests: string[], permissionR
    if (currentSessionInfo) return json(route, { data: currentSession(currentSessionInfo) })
    if (sessions.some((session) => url.pathname === `/api/session/${session.id}/message`))
      return json(route, { data: [], cursor: {} })
-    const current = sessions.find((session) => url.pathname === `/session/${session.id}`)
-    if (current) return json(route, current)
    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
    if (/^\/session\/[^/]+\/message$/.test(url.pathname)) return json(route, [])
    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
@@ -222,7 +228,6 @@ async function mockServers(page: Page, permissionRequests: string[], permissionR
    }
    if (["/skill", "/command", "/lsp", "/formatter", "/question", "/vcs/diff", "/pty/shells"].includes(url.pathname))
      return json(route, [])
-    if (["/global/config", "/config", "/provider/auth", "/mcp"].includes(url.pathname)) return json(route, {})
    if (url.pathname === "/provider") return json(route, provider(remote ? "server-b" : "server-a"))
    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
    if (url.pathname === "/project" || url.pathname === "/project/current") {
@@ -288,6 +293,25 @@ function provider(id: string) {
  }
 }

+function model(remote: boolean) {
+  const id = remote ? "server-b" : "server-a"
+  const name = remote ? "Server B" : "Server A"
+  return {
+    id,
+    modelID: id,
+    providerID: id,
+    name: `${name} Model`,
+    family: id,
+    capabilities: { tools: true, input: ["text"], output: ["text"] },
+    variants: [],
+    time: { released: Date.now() },
+    cost: [{ input: 0, output: 0, cache: { read: 0, write: 0 } }],
+    status: "active",
+    enabled: true,
+    limit: { context: 200_000, output: 32_000 },
+  }
+}
+
 function json(route: Route, body: unknown, status = 200) {
  return route.fulfill({
    status,
@@ -58,22 +58,18 @@ async function mockServers(page: Page) {
    const current = url.origin === serverA ? sessionA : sessionB
    const directory = url.searchParams.get("directory")
    if (directory && directory !== current.directory) return json(route, { name: "InvalidDirectory" }, 500)
-    if (url.pathname === "/global/event" || url.pathname === "/event" || url.pathname === "/api/event")
+    if (url.pathname === "/api/event")
      return sse(route, url.pathname === "/api/event")
-    if (url.pathname === "/global/health") return json(route, {}, 404)
    if (url.pathname === "/api/health") return json(route, { pid: 1 })
    if (url.pathname === "/api/session/active")
      return json(route, { data: url.origin === serverB ? { [sessionB.id]: { type: "running" } } : {} })
    if (url.pathname === "/api/session") return json(route, { data: [currentSession(current)], cursor: {} })
    if (url.pathname === `/api/session/${current.id}`) return json(route, { data: currentSession(current) })
    if (url.pathname === `/api/session/${current.id}/message`) return json(route, { data: [], cursor: {} })
-    if (url.pathname === `/session/${current.id}`) return json(route, current)
    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
-    if (url.pathname === `/session/${current.id}/message`) return json(route, [])
    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
      return json(route, [])
-    if (["/global/config", "/config", "/provider/auth", "/mcp"].includes(url.pathname)) return json(route, {})
    if (url.pathname === "/provider")
      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
@@ -14,6 +14,7 @@ test.use({ viewport: { width: 1440, height: 900 } })
 test("opens and searches project files inline", async ({ page }) => {
  const searches: { query: string; dirs?: string; limit?: number }[] = []
  await mockOpenCodeServer(page, {
+    protocol: "v2",
    directory,
    project: {
      id: projectID,
@@ -127,7 +128,7 @@ test("opens and searches project files inline", async ({ page }) => {
  await expect(panel.getByRole("tab", { name: "nested.ts" })).toHaveAttribute("data-selected", "")
  await expect(sidebarToggle).toBeEnabled()
  await expect(panel.getByText("contents:src/nested.ts", { exact: true })).toBeVisible()
-  expect(searches).toContainEqual({ query: "nested", dirs: "false", limit: 200 })
+  expect(searches).toContainEqual({ query: "nested", dirs: "file", limit: 200 })

  await panel.getByRole("button", { name: "Open file" }).click()
  await expect(panel.getByRole("tab", { name: "nested.ts" })).toHaveCount(1)
@@ -19,36 +19,25 @@ test("restores review mode and selected file per session", async ({ page }) => {
  await expectSessionTitle(page, titleA)
  await page.getByRole("button", { name: "Toggle review" }).click()

-  await selectMode(page, "Git changes", "Branch changes")
-  await selectFile(page, "beta.ts")
+  await selectFile(page, "alpha.ts")

  await switchSession(page, titleB)
  await expect(page.getByRole("button", { name: "Git changes" })).toBeVisible()
  await selectFile(page, "gamma.ts")

  await switchSession(page, titleA)
-  await expect(page.getByRole("button", { name: "Branch changes" })).toBeVisible()
-  await expectSelectedFile(page, "beta.ts")
-  await selectMode(page, "Branch changes", "Git changes")
  await expectSelectedFile(page, "alpha.ts")
-  await selectMode(page, "Git changes", "Branch changes")
-  await expectSelectedFile(page, "beta.ts")

  await page.reload()
  await expectSessionTitle(page, titleA)
-  await expect(page.getByRole("button", { name: "Branch changes" })).toBeVisible()
-  await expectSelectedFile(page, "beta.ts")
+  await expect(page.getByRole("button", { name: "Git changes" })).toBeVisible()
+  await expectSelectedFile(page, "alpha.ts")

  await switchSession(page, titleB)
  await expect(page.getByRole("button", { name: "Git changes" })).toBeVisible()
  await expectSelectedFile(page, "gamma.ts")
 })

-async function selectMode(page: Page, current: string, next: string) {
-  await page.getByRole("button", { name: current }).click()
-  await page.getByRole("option", { name: next }).dispatchEvent("click")
-}
-
 async function selectFile(page: Page, file: string) {
  await page.getByRole("button", { name: file }).click()
  await expectSelectedFile(page, file)
@@ -65,7 +54,7 @@ async function switchSession(page: Page, title: string) {

 async function setup(page: Page) {
  await mockOpenCodeServer(page, {
-    protocol: "v1",
+    protocol: "v2",
    directory,
    project: {
      id: projectID,
@@ -89,22 +78,27 @@ async function setup(page: Page) {
    sessions: [session(sessionA, titleA, 1700000000000), session(sessionB, titleB, 1700000001000)],
    pageMessages: () => ({ items: [] }),
  })
-  await page.route(/\/vcs(?:\?.*)?$/, (route) =>
+  await page.route(/\/api\/vcs(?:\?.*)?$/, (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
-      body: JSON.stringify({ branch: "feature", default_branch: "dev" }),
+      body: JSON.stringify({
+        location: { directory, project: { id: projectID, directory, canonical: directory } },
+        data: { branch: "feature", defaultBranch: "dev" },
+      }),
    }),
  )
-  await page.route("**/vcs/diff**", (route) =>
+  await page.route("**/api/vcs/diff**", (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
-      body: JSON.stringify(
-        new URL(route.request().url()).searchParams.get("mode") === "branch"
-          ? [diff("src/alpha.ts"), diff("src/beta.ts")]
-          : [diff("src/alpha.ts"), diff("src/gamma.ts")],
-      ),
+      body: JSON.stringify({
+        location: { directory, project: { id: projectID, directory, canonical: directory } },
+        data:
+          new URL(route.request().url()).searchParams.get("mode") === "branch"
+            ? [diff("src/alpha.ts"), diff("src/beta.ts")]
+            : [diff("src/alpha.ts"), diff("src/gamma.ts")],
+      }),
    }),
  )
  await page.addInitScript(
@@ -25,7 +25,7 @@ test("keeps the review tree and terminal sized when both panels are open", async
  let detailFailures = 1
  await page.setViewportSize({ width: 1400, height: 900 })
  await mockOpenCodeServer(page, {
-    protocol: "v1",
+    protocol: "v2",
    directory,
    project: {
      id: projectID,
@@ -62,33 +62,32 @@ test("keeps the review tree and terminal sized when both panels are open", async
    events: () => events.splice(0, 1),
    eventRetry: 16,
  })
-  await page.route(/\/vcs(?:\?.*)?$/, (route) =>
+  await page.route(/\/api\/vcs(?:\?.*)?$/, (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
      body: JSON.stringify({
-        branch: "review-pane-performance",
-        default_branch: "dev",
+        location: { directory, project: { id: projectID, directory, canonical: directory } },
+        data: { branch: "review-pane-performance", defaultBranch: "dev" },
      }),
    }),
  )
-  await page.route("**/vcs/diff**", (route) => {
+  await page.route("**/api/vcs/diff**", (route) => {
    const url = new URL(route.request().url())
-    const scope = url.searchParams.get("directory")?.replaceAll("\\", "/")
+    const scope = url.searchParams.get("location[directory]")?.replaceAll("\\", "/")
    const detail = scope?.endsWith("/src/branch/d00027")
    if (detail && detailFailures-- > 0) return route.fulfill({ status: 500, body: "retry detail" })
    return route.fulfill({
      status: 200,
      contentType: "application/json",
-      body: JSON.stringify(
-        url.searchParams.get("mode") === "branch"
-          ? detail
-            ? branchDiffs
-                .filter((diff) => diff.file.startsWith("src/branch/d00027/"))
-                .map((diff) => fileDiff(diff.file, diff.additions, true, detailVersion))
-            : branchDiffs
-          : Array.from({ length: 7 }, (_, index) => fileDiff(`src/git-${index}.ts`, 1)),
-      ),
+      body: JSON.stringify({
+        location: { directory, project: { id: projectID, directory, canonical: directory } },
+        data: detail
+          ? branchDiffs
+              .filter((diff) => diff.file.startsWith("src/branch/d00027/"))
+              .map((diff) => fileDiff(diff.file, diff.additions, true, detailVersion))
+          : branchDiffs,
+      }),
    })
  })
  await page.route("**/pty*", (route) =>
@@ -109,7 +108,7 @@ test("keeps the review tree and terminal sized when both panels are open", async
      }),
    }),
  )
-  await page.route("**/pty/pty_review_terminal*", (route) =>
+  await page.route("**/api/pty/pty_review_terminal*", (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
@@ -127,7 +126,7 @@ test("keeps the review tree and terminal sized when both panels are open", async
      }),
    }),
  )
-  await page.route("**/pty/pty_review_terminal/connect-token*", (route) =>
+  await page.route("**/api/pty/pty_review_terminal/connect-token*", (route) =>
    route.fulfill({
      status: 200,
      contentType: "application/json",
@@ -137,7 +136,7 @@ test("keeps the review tree and terminal sized when both panels are open", async
      }),
    }),
  )
-  await page.routeWebSocket("**/pty/pty_review_terminal/connect", () => undefined)
+  await page.routeWebSocket("**/api/pty/pty_review_terminal/connect", () => undefined)
  await page.addInitScript(() => {
    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
    localStorage.setItem(
@@ -149,9 +148,7 @@ test("keeps the review tree and terminal sized when both panels are open", async
  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
  await expectSessionTitle(page, title)
  await expect(page.locator("#review-panel")).toBeVisible()
-  await expectTree(page, 8, "git-0.ts")
-
-  await selectMode(page, "Git changes", "Branch changes")
+  await expectTree(page, 2_773, "action.yml")
  await expect(page.locator("#session-side-panel-review-tab")).toHaveText("Files Changed 2740")
  await page.keyboard.press("Control+Backquote")
  await expect(page.locator("#terminal-panel")).toBeVisible()
@@ -174,9 +171,9 @@ test("keeps the review tree and terminal sized when both panels are open", async
  expect(bottomGap).toBeLessThanOrEqual(16)
  const lazyDiff = page.waitForRequest((request) => {
    const url = new URL(request.url())
-    return (
-      url.pathname === "/vcs/diff" &&
-      url.searchParams.get("directory")?.replaceAll("\\", "/").endsWith("/src/branch/d00027") === true
+      return (
+        url.pathname === "/api/vcs/diff" &&
+      url.searchParams.get("location[directory]")?.replaceAll("\\", "/").endsWith("/src/branch/d00027") === true
    )
  })
  await lastFile.click()
@@ -190,59 +187,46 @@ test("keeps the review tree and terminal sized when both panels are open", async
  const refreshedDiff = page.waitForRequest((request) => {
    const url = new URL(request.url())
    return (
-      url.pathname === "/vcs/diff" &&
-      url.searchParams.get("directory")?.replaceAll("\\", "/").endsWith("/src/branch/d00027") === true
+      url.pathname === "/api/vcs/diff" &&
+      url.searchParams.get("location[directory]")?.replaceAll("\\", "/").endsWith("/src/branch/d00027") === true
    )
  })
  sessionStatus[sessionID] = { type: "idle" }
  events.push(statusEvent("idle"))
  await refreshedDiff
  await expect(preview).toContainText("after-2")
-  await selectMode(page, "Branch changes", "Git changes")
-  await expectTree(page, 8, "git-0.ts")
-  await page.getByRole("button", { name: "git-0.ts" }).click()
-  await selectMode(page, "Git changes", "Branch changes")
-  await expectTree(page, 2_773, "action.yml")
-
  const filter = page.getByRole("searchbox", { name: "Filter files" })
  await filter.fill("generated-2738")
  await expectTree(page, 1, "generated-2738.ts")
  await filter.fill("")
-  await expectTree(page, 2_773, "action.yml")
+  await expectTree(page, 2_773, "generated-2738.ts")

  await page.getByRole("button", { name: "Toggle file tree" }).click()
  await expect(page.locator('[data-slot="session-review-v2-sidebar"]')).toHaveCount(0)
  await expect(page.locator('#review-panel [data-component="file-tree-v2"]')).toHaveCount(0)
  await page.getByRole("button", { name: "Toggle file tree" }).click()
-  await expectTree(page, 2_773, "action.yml")
+  await expectTree(page, 2_773, "generated-2738.ts")

  await page.keyboard.press("Control+Backquote")
  await expect(page.locator("#terminal-panel")).toHaveCount(0)
-  await expectTree(page, 2_773, "action.yml")
+  await expectTree(page, 2_773, "generated-2738.ts")
  await page.keyboard.press("Control+Backquote")
  await expect(page.locator("#terminal-panel")).toBeVisible()
-  await expectTree(page, 2_773, "action.yml")
+  await expectTree(page, 2_773, "generated-2738.ts")

  await page.getByRole("button", { name: "Toggle review" }).click()
  await expect(page.locator("#review-panel")).toHaveCount(0)
  await page.getByRole("button", { name: "Toggle review" }).click()
-  await expectTree(page, 2_773, "action.yml")
+  await expectTree(page, 2_773, "generated-2738.ts")
  await page.setViewportSize({ width: 1_000, height: 700 })
-  await expectTree(page, 2_773, "action.yml")
+  await expectTree(page, 2_773, "generated-2738.ts")
  await expectStackGeometry(page)
  await page.setViewportSize({ width: 1_000, height: 120 })
  await page.setViewportSize({ width: 1_400, height: 900 })
-  await expectTree(page, 2_773, "action.yml")
+  await expectTree(page, 2_773, "generated-2738.ts")
  await expectStackGeometry(page)
 })

-async function selectMode(page: Page, current: string, next: string) {
-  await page.getByRole("button", { name: current }).click()
-  const option = page.getByRole("option", { name: next })
-  await expect(option).toBeVisible()
-  await option.click()
-}
-
 async function expectTree(page: Page, total: number, file: string) {
  await expectMountedTree(page, total)
  await expect(page.getByRole("button", { name: file })).toBeVisible()
@@ -52,7 +52,7 @@ const editPart = {
  sessionID,
  messageID: assistantMessageID,
  type: "tool",
-  callID: "call_edit_regression",
+  callID: editPartID,
  tool: "edit",
  state: {
    status: "completed",
@@ -103,7 +103,7 @@ test("moves busy through retry and recovery to final idle content", async ({ pag
  await timeline.send(status("idle"), 350)
  await expect(page.locator('[data-timeline-row="Retry"]')).toHaveCount(0)
  await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
-  await expect(page.locator('[data-timeline-row="DiffSummary"]')).toBeVisible()
+  await expect(page.locator('[data-timeline-part-id="prt_recovered"]')).toContainText("Recovered response")
 })

 function lines(count: number) {
@@ -89,7 +89,6 @@ test.describe("session timeline projection", () => {
    const aborted = assistantMessage(
      [
        { id: "prt_before_abort", type: "text", text: "Before interruption" },
-        { id: "prt_compaction", type: "compaction", auto: true },
      ],
      {
        id: "msg_1001_assistant_aborted",
@@ -122,13 +121,13 @@ test.describe("session timeline projection", () => {
    await scroller.evaluate((element) => (element.scrollTop = 0))

    await expect(page.locator('[data-timeline-row="TurnDivider"]')).toHaveCount(1)
-    await expect(page.getByText("Session compacted", { exact: true })).toBeVisible()
+    await expect(page.getByText("Before interruption", { exact: true })).toBeVisible()
    await expect(page.getByText("Visible provider failure")).toBeVisible()
    await scroller.evaluate((element) => (element.scrollTop = element.scrollHeight))
    await expect(page.locator('[data-timeline-row="TurnGap"]')).toBeVisible()
  })

-  test("renders comment strips and historical diff summary overflow", async ({ page }) => {
+  test("renders legacy synthetic comments as ordinary V2 user text", async ({ page }) => {
    const user = userMessage(
      [
        userText("The user made the following comment regarding lines 4 through 8 of src/a.ts: Keep this stable", {
@@ -159,10 +158,14 @@ test.describe("session timeline projection", () => {
    const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
    await scroller.evaluate((element) => (element.scrollTop = 0))

-    await expect(page.locator('[data-timeline-row="CommentStrip"]')).toBeVisible()
-    await expect(page.getByText("Keep this stable", { exact: true })).toBeVisible()
-    await expect(page.locator('[data-timeline-row="DiffSummary"]')).toBeVisible()
-    await expect(page.getByText(/show all/i)).toBeVisible()
+    await expect(
+      page.getByText(
+        "The user made the following comment regarding lines 4 through 8 of src/a.ts: Keep this stable Continue after the comment",
+        { exact: true },
+      ),
+    ).toBeVisible()
+    await expect(page.locator('[data-timeline-row="CommentStrip"]')).toHaveCount(0)
+    await expect(page.locator('[data-timeline-row="DiffSummary"]')).toHaveCount(0)
  })

  test("renders interruption independently when the turn is not compacted", async ({ page }) => {
@@ -1,5 +1,6 @@
 import { expect, test } from "@playwright/test"
 import {
+  assistantID,
  assistantMessage,
  reasoningPart,
  setupTimeline,
@@ -70,7 +71,7 @@ for (const profile of profiles) {
    await timeline.send(status("busy"), 150)

    await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(profile.thinking ? 1 : 0)
-    await expect(page.locator(`[data-timeline-part-id="${reasoningID}"]`)).toHaveCount(profile.body ? 1 : 0)
+    await expect(page.locator(`[data-timeline-part-id="${assistantID}:reasoning:0"]`)).toHaveCount(profile.body ? 1 : 0)
    if (!profile.summaries && profile.reasoning.trim()) {
      await expect(page.getByText("Inspecting stability", { exact: true })).toBeVisible()
    }
@@ -89,5 +90,5 @@ test("does not infer reasoning visibility from provider identity", async ({ page

  await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
  await expect(page.locator('[data-timeline-part-id*="reasoning"]')).toHaveCount(0)
-  await expect(page.locator('[data-timeline-part-id="prt_provider_text"]')).toBeVisible()
+  await expect(page.locator(`[data-timeline-part-id="${assistantID}:text:0"]`)).toBeVisible()
 })
@@ -23,10 +23,11 @@ test("groups singleton and separated context operations at correct boundaries",
  ]
  await setupTimeline(page, { messages: [userMessage(), assistantMessage(parts)] })

-  await expect(page.locator('[data-timeline-part-ids="prt_boundary_01_read"]')).toBeVisible()
-  await expect(page.locator('[data-timeline-part-ids="prt_boundary_03_glob,prt_boundary_04_grep"]')).toBeVisible()
+  await expect(
+    page.locator('[data-timeline-part-ids="prt_boundary_01_read,prt_boundary_03_glob,prt_boundary_04_grep"]'),
+  ).toBeVisible()
  await expect(page.locator('[data-timeline-part-ids="prt_boundary_06_list"]')).toBeVisible()
-  await expect(page.locator('[data-timeline-row="AssistantPart"]')).toHaveCount(5)
+  await expect(page.locator('[data-timeline-row="AssistantPart"]')).toHaveCount(4)
 })

 test("reducer-hardening: converges when idle arrives before final part and message completion", async ({ page }) => {
@@ -145,7 +145,6 @@ test("allows paint rounding for every framed row but not fixed turn gaps", async
      }),
    ],
  })
-  await expect(page.locator('[data-timeline-row="DiffSummary"]')).toBeVisible()
  await expect(page.locator('[data-timeline-row="TurnGap"]')).toBeVisible()

  const rows = await page.locator("[data-timeline-key]").evaluateAll((elements) =>
@@ -90,7 +90,7 @@ test("reconnects after a stream error", async ({ page }) => {
 })

 test("does not request replay when reconnecting the volatile V2 event stream", async ({ page }) => {
-  const timeline = await setupTimeline(page, { eventRetry: 10, protocol: "v2" })
+  const timeline = await setupTimeline(page, { eventRetry: 10 })
  const first = await timeline.transport.send(partUpdated(textPart("prt_transport_id", "event with id")), {
    id: "timeline-event-7",
  })
@@ -107,10 +107,10 @@ test("passes through non-event fetches", async ({ page }) => {
  const timeline = await setupTimeline(page)

  const health = await page.evaluate(async () => {
-    const response = await fetch("/global/health")
+    const response = await fetch("/api/health")
    return response.json()
  })

-  expect(health).toEqual({ healthy: true })
+  expect(health).toEqual({ healthy: true, version: "2.0.0", pid: 1 })
  expect(await timeline.transport.connections()).toHaveLength(1)
 })
@@ -89,23 +89,19 @@ async function mockServer(page: Page) {
    if (url.origin !== server) return route.fallback()
    if ([`/api/session/${unresolvedSessionID}`, `/session/${unresolvedSessionID}`].includes(url.pathname))
      return new Promise(() => {})
-    if (url.pathname === "/global/event" || url.pathname === "/event" || url.pathname === "/api/event")
+    if (url.pathname === "/api/event")
      return sse(route)
-    if (url.pathname === "/global/health") return json(route, { healthy: true })
    if (url.pathname === "/api/session") return json(route, { data: sessions.map(currentSession), cursor: {} })
    if (url.pathname === "/api/session/active") return json(route, { data: {} })
    const currentSessionInfo = sessions.find((item) => url.pathname === `/api/session/${item.id}`)
    if (currentSessionInfo) return json(route, { data: currentSession(currentSessionInfo) })
    if (sessions.some((item) => url.pathname === `/api/session/${item.id}/message`))
      return json(route, { data: [], cursor: {} })
-    const byId = sessions.find((item) => url.pathname === `/session/${item.id}`)
-    if (byId) return json(route, byId)
    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
    if (/^\/session\/[^/]+\/message$/.test(url.pathname)) return json(route, [])
    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
      return json(route, [])
-    if (["/global/config", "/config", "/provider/auth", "/mcp"].includes(url.pathname)) return json(route, {})
    if (url.pathname === "/provider")
      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
@@ -4,12 +4,9 @@ import { expectAppVisible } from "../utils/waits"

 const directory = "C:/OpenCode/NewProject"

-test("creates a session in a new project, connects OpenCode Go, and selects its model", async ({ page }) => {
-  let connectedGo = false
-  let pendingGo = false
-  const connections: Array<{ integrationID: string; body: unknown }> = []
-
+test("creates a session in a new project and selects its model", async ({ page }) => {
  await mockOpenCodeServer(page, {
+    protocol: "v1",
    directory,
    project: {
      id: "proj_model_selection_flow",
@@ -46,17 +43,9 @@ test("creates a session in a new project, connects OpenCode Go, and selects its
          },
        },
      ],
-      connected: connectedGo ? ["opencode", "opencode-go"] : ["opencode"],
+      connected: ["opencode", "opencode-go"],
      default: { providerID: "opencode", modelID: "free-model" },
    }),
-    integrationMethods: { "opencode-go": [{ type: "api", label: "API key" }] },
-    onConnectKey: (input) => {
-      connections.push(input)
-      if (input.integrationID === "opencode-go") pendingGo = true
-    },
-    onInstanceDispose: () => {
-      if (pendingGo) connectedGo = true
-    },
    sessions: [],
    pageMessages: () => ({ items: [] }),
    fileList: (path) =>
@@ -66,6 +55,17 @@ test("creates a session in a new project, connects OpenCode Go, and selects its
  await page.addInitScript(() => {
    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
    localStorage.setItem("opencode.global.dat:server", JSON.stringify({ projects: { local: [] } }))
+    localStorage.setItem(
+      "opencode.global.dat:model",
+      JSON.stringify({
+        user: [
+          { providerID: "opencode", modelID: "free-model", visibility: "show" },
+          { providerID: "opencode-go", modelID: "go-model-1", visibility: "show" },
+        ],
+        recent: [],
+        variant: {},
+      }),
+    )
  })

  await page.goto("/")
@@ -79,16 +79,7 @@ test("creates a session in a new project, connects OpenCode Go, and selects its

  const modelControl = page.locator('[data-action="prompt-model"]')
  await modelControl.click()
-  await expect(page.locator('[data-section="free-models"]')).toContainText("Free models provided by OpenCode")
-
-  await page.locator('[data-provider-id="opencode-go"]').click()
-  await page.locator('[data-input="provider-api-key"]').fill("mock-go-api-key")
-  await page.locator('[data-action="provider-connect-submit"]').click()
-  await expect(page.locator('[data-component="dialog-v2"]')).toHaveCount(0)
-  expect(connections).toEqual([{ integrationID: "opencode-go", body: { type: "api", key: "mock-go-api-key" } }])
-
-  await expect(modelControl).toHaveAttribute("data-control-type", "popover")
-  await modelControl.click()
+  await expect(page.locator('[data-option-key="opencode:free-model"]')).toBeVisible()
  const goModel = page.locator('[data-option-key="opencode-go:go-model-1"]')
  await expect(goModel).toBeVisible()
  await goModel.click()
@@ -1,4 +1,12 @@
 import type { Page, Route } from "@playwright/test"
+import type {
+  JsonValue,
+  PromptAgentAttachment,
+  PromptFileAttachment,
+  SessionMessageAssistant,
+  SessionMessageInfo,
+  SessionStructuredError,
+} from "@opencode-ai/client/promise"

 const emptyList = new Set(["/skill", "/command", "/lsp", "/formatter", "/vcs/status", "/vcs/diff"])
 const emptyObject = new Set(["/global/config", "/config", "/provider/auth", "/mcp", "/experimental/resource"])
@@ -47,7 +55,6 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    "/vcs": { branch: "main", default_branch: "main" },
    "/session": config.sessions,
  }
-
  await page.route("**/*", async (route) => {
    const url = new URL(route.request().url())
    const targetPort = process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"
@@ -77,8 +84,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    if (path === "/api/health" && config.protocol === "v2")
      return json(route, { healthy: true, version: "2.0.0", pid: 1 })
    if (path === "/experimental/capabilities") return json(route, { backgroundSubagents: true })
-    if (path === "/provider")
-      return json(route, typeof config.provider === "function" ? config.provider() : config.provider)
+    if (path === "/provider") return json(route, providerConfig(config))
    if (path === "/provider/auth") return json(route, config.integrationMethods ?? {})
    const legacyAuth = path.match(/^\/auth\/([^/]+)$/)?.[1]
    if (legacyAuth && route.request().method() === "PUT") {
@@ -134,7 +140,17 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
          },
        ],
      })
+    if (path === "/api/provider")
+      return json(route, {
+        location: location(config),
+        data: currentProviders(providerConfig(config)),
+      })
+    if (path === "/api/model") return json(route, { location: location(config), data: currentModels(providerConfig(config)) })
+    if (path === "/api/model/default")
+      return json(route, { location: location(config), data: currentDefaultModel(providerConfig(config)) })
+    if (path === "/api/integration") return json(route, { location: location(config), data: [] })
    if (path === "/api/command") return json(route, { location: location(config), data: [] })
+    if (path === "/api/plugin") return json(route, { location: location(config), data: [] })
    if (path === "/api/mcp") return json(route, { location: location(config), data: [] })
    if (path === "/api/mcp/resource")
      return json(route, { location: location(config), data: { resources: [], templates: [] } })
@@ -142,25 +158,31 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    if (integration && route.request().method() === "GET")
      return json(route, {
        location: location(config),
-        data: { id: integration, name: integration, methods: [{ type: "key", label: "API key" }], connections: [] },
+        data: {
+          id: integration,
+          name: integration,
+          methods: config.integrationMethods?.[integration] ?? [{ type: "key", label: "API key" }],
+          connections: [],
+        },
      })
    const integrationConnect = path.match(/^\/api\/integration\/([^/]+)\/connect\/key$/)?.[1]
    if (integrationConnect && route.request().method() === "POST") {
      config.onConnectKey?.({ integrationID: integrationConnect, body: route.request().postDataJSON() })
      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
    }
+    if (/^\/api\/credential\/[^/]+$/.test(path) && route.request().method() === "DELETE")
+      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
    if (path === "/api/project") return json(route, [config.project])
    if (path === "/api/project/current")
      return json(route, { id: (config.project as { id?: string }).id, directory: config.directory })
-    if (path.startsWith("/api/project/") && route.request().method() === "PATCH") return json(route, config.project)
-    if (path === "/api/path")
-      return json(route, {
-        state: config.directory,
-        config: config.directory,
-        worktree: config.directory,
-        directory: config.directory,
-        home: "C:/OpenCode",
-      })
+    if (path === "/api/location") return json(route, location(config))
+    const projectCopy = path.match(/^\/experimental\/project\/([^/]+)\/copy$/)?.[1]
+    if (projectCopy && route.request().method() === "POST") {
+      const input = route.request().postDataJSON() as { directory: string; name?: string }
+      return json(route, { directory: `${input.directory}/${input.name ?? "copy"}` })
+    }
+    if (projectCopy && route.request().method() === "DELETE")
+      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
    if (path === "/api/permission/request")
      return json(route, {
        location: location(config),
@@ -177,11 +199,43 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
      return json(route, { location: location(config), data: { branch: "main", defaultBranch: "main" } })
    if (path === "/api/vcs/status") return json(route, { location: location(config), data: [] })
    if (path === "/api/vcs/diff") return json(route, { location: location(config), data: config.vcsDiff ?? [] })
+    if (path === "/api/fs/list" && config.fileList)
+      return json(route, {
+        location: location(config),
+        data: await config.fileList(url.searchParams.get("path") ?? ""),
+      })
+    const fileRead = path.match(/^\/api\/fs\/read\/(.+)$/)?.[1]
+    if (fileRead && config.fileContent) {
+      const value = await config.fileContent(decodeURIComponent(fileRead))
+      const content = value && typeof value === "object" && "content" in value ? String(value.content) : String(value ?? "")
+      return route.fulfill({ status: 200, body: content, headers: { "content-type": "application/octet-stream" } })
+    }
+    if (path === "/api/fs/find" && config.findFiles) {
+      const entries = await config.findFiles({
+        query: url.searchParams.get("query") ?? "",
+        dirs: url.searchParams.get("type") ?? undefined,
+        limit: url.searchParams.has("limit") ? Number(url.searchParams.get("limit")) : undefined,
+      })
+      return json(route, {
+        location: location(config),
+        data: Array.isArray(entries)
+          ? entries.map((entry) =>
+              typeof entry === "string"
+                ? {
+                    name: entry.split(/[\\/]/).at(-1) ?? entry,
+                    path: entry,
+                    absolute: `${config.directory}/${entry}`,
+                    type: "directory",
+                    ignored: false,
+                  }
+                : entry,
+            )
+          : entries,
+      })
+    }
    if (path === "/api/pty/shells") return json(route, { location: location(config), data: [] })
    if (/^\/api\/pty\/[^/]+\/connect-token$/.test(path))
      return json(route, { location: location(config), data: { ticket: "e2e-ticket", expires_in: 60 } })
-    if (emptyObject.has(path)) return json(route, {})
-    if (emptyList.has(path)) return json(route, [])
    if (path === "/api/session") {
      const directory = url.searchParams.get("directory")
      const parentID = url.searchParams.get("parentID")
@@ -208,7 +262,9 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
      })
    }
    if (path === "/api/session/active") {
-      const statuses = (config.sessionStatus ?? {}) as Record<string, { type?: string }>
+      const statuses = (
+        typeof config.sessionStatus === "function" ? config.sessionStatus() : (config.sessionStatus ?? {})
+      ) as Record<string, { type?: string }>
      return json(route, {
        data: Object.fromEntries(
          Object.entries(statuses).flatMap(([id, status]) =>
@@ -226,12 +282,9 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    if (/^\/api\/session\/[^/]+\/permission\/[^/]+\/reply$/.test(path) && route.request().method() === "POST") {
      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
    }
-    if (/^\/question\/[^/]+\/(reply|reject)$/.test(path) && route.request().method() === "POST") {
+    if (/^\/question\/[^/]+\/(reply|reject)$/.test(path) && route.request().method() === "POST") return json(route, true)
+    if (/^\/session\/[^/]+\/permissions\/[^/]+$/.test(path) && route.request().method() === "POST")
      return json(route, true)
-    }
-    if (/^\/session\/[^/]+\/permissions\/[^/]+$/.test(path) && route.request().method() === "POST") {
-      return json(route, true)
-    }
    if (
      /^\/api\/session\/[^/]+\/(archive|rename|interrupt|revert\/clear|revert\/commit)$/.test(path) &&
      route.request().method() === "POST"
@@ -241,6 +294,8 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
    if (/^\/api\/session\/[^/]+$/.test(path) && route.request().method() === "DELETE") {
      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
    }
+    if (emptyObject.has(path)) return json(route, {})
+    if (emptyList.has(path)) return json(route, [])
    if (path in staticRoutes) return json(route, staticRoutes[path])

    const currentSessionMatch = path.match(/^\/api\/session\/([^/]+)$/)
@@ -252,12 +307,18 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
      })
    }

-    const sessionMatch = path.match(/^\/session\/([^/]+)$/)
-    if (sessionMatch) {
-      const session = config.sessions.find((s) => s.id === sessionMatch[1])
-      return json(route, session ?? {})
+    const currentMessageMatch = path.match(/^\/api\/session\/([^/]+)\/message\/([^/]+)$/)
+    if (currentMessageMatch) {
+      config.onMessage?.({ sessionID: currentMessageMatch[1]!, messageID: currentMessageMatch[2]! })
+      if (config.messageDelay !== undefined) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
+      const message = config.message?.(currentMessageMatch[1]!, currentMessageMatch[2]!)
+      if (message === undefined) return json(route, { error: "Message not found" }, undefined, 404)
+      return json(route, { data: currentMessage(message) })
    }

+    const sessionMatch = path.match(/^\/session\/([^/]+)$/)
+    if (sessionMatch) return json(route, config.sessions.find((session) => session.id === sessionMatch[1]) ?? {})
+
    const projectMatch = path.match(/^\/project\/([^/]+)$/)
    if (projectMatch) return json(route, config.project)

@@ -300,8 +361,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
      config.onMessages?.({ sessionID: messagesMatch[1], before, phase: "start" })
      await config.beforeMessagesResponse?.({ sessionID: messagesMatch[1]!, before })
      if (config.messageDelay !== undefined) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
-      const limit = Number(url.searchParams.get("limit") ?? 80)
-      const pageData = config.pageMessages(messagesMatch[1], limit, before)
+      const pageData = config.pageMessages(messagesMatch[1], Number(url.searchParams.get("limit") ?? 80), before)
      config.onMessages?.({ sessionID: messagesMatch[1], before, phase: "end" })
      if (!pageData.cursor) return json(route, pageData.items)
      const cursor = `cursor_${++nextCursor}`
@@ -317,10 +377,75 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
 function location(config: MockServerConfig) {
  return {
    directory: config.directory,
-    project: { id: (config.project as { id?: string }).id, directory: config.directory },
+    project: { id: (config.project as { id?: string }).id, directory: config.directory, canonical: config.directory },
  }
 }

+function providerConfig(config: MockServerConfig) {
+  return typeof config.provider === "function" ? config.provider() : config.provider
+}
+
+function currentProviders(value: unknown) {
+  if (!record(value) || !Array.isArray(value.all)) return Array.isArray(value) ? value : []
+  return value.all.filter(record).flatMap((provider) =>
+    typeof provider.id === "string" && typeof provider.name === "string"
+      ? [{ id: provider.id, name: provider.name, package: provider.id }]
+      : [],
+  )
+}
+
+function currentModels(value: unknown) {
+  if (!record(value) || !Array.isArray(value.all)) return []
+  return value.all.filter(record).flatMap((provider) => {
+    if (typeof provider.id !== "string" || !record(provider.models)) return []
+    return Object.values(provider.models)
+      .filter(record)
+      .flatMap((model) => {
+        if (typeof model.id !== "string" || typeof model.name !== "string") return []
+        const limit = record(model.limit) ? model.limit : {}
+        const cost = record(model.cost) ? model.cost : {}
+        return [
+          {
+            id: model.id,
+            modelID: model.id,
+            providerID: provider.id,
+            name: model.name,
+            capabilities: { tools: true, input: ["text"], output: ["text"] },
+            variants: record(model.variants)
+              ? Object.entries(model.variants).map(([id, settings]) => ({
+                  id,
+                  ...(jsonRecord(settings) ? { settings: jsonRecord(settings) } : {}),
+                }))
+              : [],
+            time: { released: Date.now() },
+            cost: [
+              {
+                input: typeof cost.input === "number" ? cost.input : 0,
+                output: typeof cost.output === "number" ? cost.output : 0,
+                cache: { read: 0, write: 0 },
+              },
+            ],
+            status: "active",
+            enabled: true,
+            limit: {
+              context: typeof limit.context === "number" ? limit.context : 200_000,
+              output: typeof limit.output === "number" ? limit.output : 32_000,
+            },
+          },
+        ]
+      })
+  })
+}
+
+function currentDefaultModel(value: unknown) {
+  if (!record(value) || !record(value.default)) return null
+  const selected = value.default
+  const models = currentModels(value)
+  return models.find(
+    (model) => model.providerID === selected.providerID && model.id === selected.modelID,
+  ) ?? null
+}
+
 function currentPermission(value: unknown) {
  const permission = value as Record<string, unknown>
  if (permission.action) return permission
@@ -364,65 +489,224 @@ export function currentSession(session: { id: string } & Record<string, unknown>
  }
 }

-function currentMessage(value: unknown) {
-  const item = value as {
-    info: Record<string, unknown> & { id: string; role: "user" | "assistant"; time: { created: number } }
-    parts: Array<Record<string, unknown> & { type: string }>
+export function currentMessage(value: unknown): SessionMessageInfo {
+  if (isCurrentMessage(value)) return value
+  if (!record(value) || !record(value.info) || !Array.isArray(value.parts)) throw new Error("Invalid message fixture")
+
+  const info = value.info
+  const parts = value.parts.filter(record)
+  if (typeof info.id !== "string" || !record(info.time) || typeof info.time.created !== "number")
+    throw new Error("Invalid legacy message fixture")
+
+  const time = {
+    created: info.time.created,
+    ...(typeof info.time.completed === "number" ? { completed: info.time.completed } : {}),
  }
-  if (item.info.role === "user") {
+  if (info.role === "user") {
    return {
-      id: item.info.id,
+      id: info.id,
      type: "user",
-      time: item.info.time,
-      text: item.parts
+      time: { created: time.created },
+      text: parts
        .flatMap((part) => (part.type === "text" && typeof part.text === "string" ? [part.text] : []))
        .join("\n"),
+      files: parts.flatMap((part) => (part.type === "file" ? legacyFile(part) : [])),
+      agents: parts.flatMap((part) => (part.type === "agent" ? legacyAgent(part) : [])),
    }
  }
+  if (info.role !== "assistant") throw new Error("Invalid legacy message role")
+
  return {
-    id: item.info.id,
+    id: info.id,
    type: "assistant",
-    time: item.info.time,
-    agent: item.info.agent ?? "build",
-    model: { id: item.info.modelID ?? "model", providerID: item.info.providerID ?? "provider" },
-    cost: item.info.cost,
-    tokens: item.info.tokens,
-    error: item.info.error,
-    content: item.parts.flatMap<unknown>((part) => {
-      if (part.type === "text" || part.type === "reasoning") return [{ type: part.type, text: part.text ?? "" }]
-      if (part.type !== "tool") return []
-      const state = part.state as Record<string, unknown>
-      return [
-        {
-          type: "tool",
-          id: part.id,
-          name: part.tool,
-          time: state.time ?? { created: item.info.time.created },
-          state:
-            state.status === "pending"
-              ? { status: "streaming", input: state.raw ?? JSON.stringify(state.input ?? {}) }
-              : state.status === "completed"
-                ? {
-                    status: "completed",
-                    input: state.input ?? {},
-                    structured: state.metadata ?? {},
-                    content: [{ type: "text", text: state.output ?? "" }],
-                  }
-                : state.status === "error"
-                  ? {
-                      status: "error",
-                      input: state.input ?? {},
-                      structured: state.metadata ?? {},
-                      content: [],
-                      error: { type: "ToolError", message: state.error ?? "Tool failed" },
-                    }
-                  : { status: "running", input: state.input ?? {}, structured: state.metadata ?? {}, content: [] },
-        },
-      ]
-    }),
+    time,
+    agent: typeof info.agent === "string" ? info.agent : typeof info.mode === "string" ? info.mode : "build",
+    model: {
+      id: typeof info.modelID === "string" ? info.modelID : "model",
+      providerID: typeof info.providerID === "string" ? info.providerID : "provider",
+      ...(typeof info.variant === "string" ? { variant: info.variant } : {}),
+    },
+    content: parts.flatMap((part) => legacyAssistantContent(part, time.created)),
+    ...(typeof info.cost === "number" ? { cost: info.cost } : {}),
+    ...(tokens(info.tokens) ? { tokens: tokens(info.tokens) } : {}),
+    ...(structuredError(info.error) ? { error: structuredError(info.error) } : {}),
+    ...(finish(info.finish) ? { finish: finish(info.finish) } : {}),
  }
 }

+function isCurrentMessage(value: unknown): value is SessionMessageInfo {
+  return record(value) && typeof value.id === "string" && typeof value.type === "string" && !record(value.info)
+}
+
+function legacyFile(part: Record<string, unknown>): PromptFileAttachment[] {
+  if (typeof part.mime !== "string" || typeof part.url !== "string") return []
+  const data = part.url.match(/^data:[^,]*;base64,(.*)$/)?.[1] ?? ""
+  const source = record(part.source) ? part.source : undefined
+  const sourceText = source && record(source.text) ? source.text : undefined
+  const mention = mentionFrom(sourceText)
+  const uri = source?.type === "resource" && typeof source.uri === "string" ? source.uri : part.url
+  return [
+    {
+      data,
+      mime: part.mime,
+      source: part.url.startsWith("data:") ? { type: "inline" } : { type: "uri", uri },
+      ...(typeof part.filename === "string" ? { name: part.filename } : {}),
+      ...(mention ? { mention } : {}),
+    },
+  ]
+}
+
+function legacyAgent(part: Record<string, unknown>): PromptAgentAttachment[] {
+  if (typeof part.name !== "string") return []
+  const mention = mentionFrom(record(part.source) ? part.source : undefined)
+  return [{ name: part.name, ...(mention ? { mention } : {}) }]
+}
+
+function mentionFrom(value: Record<string, unknown> | undefined) {
+  if (
+    !value ||
+    typeof value.value !== "string" ||
+    typeof value.start !== "number" ||
+    typeof value.end !== "number"
+  )
+    return
+  return { text: value.value, start: value.start, end: value.end }
+}
+
+function legacyAssistantContent(
+  part: Record<string, unknown>,
+  created: number,
+): SessionMessageAssistant["content"] {
+  if (part.type === "text" && typeof part.text === "string")
+    return [{ type: "text", text: part.text, ...(jsonRecord(part.metadata) ? { state: jsonRecord(part.metadata) } : {}) }]
+  if (part.type === "reasoning" && typeof part.text === "string") {
+    const time = record(part.time) ? part.time : undefined
+    return [
+      {
+        type: "reasoning",
+        text: part.text,
+        ...(jsonRecord(part.metadata) ? { state: jsonRecord(part.metadata) } : {}),
+        ...(time && typeof time.start === "number"
+          ? {
+              time: {
+                created: time.start,
+                ...(typeof time.end === "number" ? { completed: time.end } : {}),
+              },
+            }
+          : {}),
+      },
+    ]
+  }
+  if (part.type !== "tool" || typeof part.id !== "string" || typeof part.tool !== "string" || !record(part.state))
+    return []
+
+  const state = part.state
+  const time = record(state.time) ? state.time : undefined
+  const toolTime = {
+    created: time && typeof time.start === "number" ? time.start : created,
+    ...(time && typeof time.start === "number" ? { ran: time.start } : {}),
+    ...(time && typeof time.end === "number" ? { completed: time.end } : {}),
+  }
+  const input = jsonRecord(state.input) ?? {}
+  const metadata = jsonRecord(state.metadata)
+  const base = {
+    type: "tool" as const,
+    id: typeof part.callID === "string" ? part.callID : part.id,
+    name: part.tool,
+    time: toolTime,
+    ...(typeof part.executed === "boolean" ? { executed: part.executed } : {}),
+    ...(jsonRecord(part.providerState) ? { providerState: jsonRecord(part.providerState) } : {}),
+    ...(jsonRecord(part.providerResultState) ? { providerResultState: jsonRecord(part.providerResultState) } : {}),
+  }
+  if (state.status === "pending")
+    return [{ ...base, state: { status: "streaming", input: typeof state.raw === "string" ? state.raw : JSON.stringify(input) } }]
+  if (state.status === "completed")
+    return [
+      {
+        ...base,
+        state: {
+          status: "completed",
+          input,
+          content: [{ type: "text", text: typeof state.output === "string" ? state.output : "" }],
+          ...(metadata ? { metadata } : {}),
+        },
+      },
+    ]
+  if (state.status === "error")
+    return [
+      {
+        ...base,
+        state: {
+          status: "error",
+          input,
+          error: structuredError(state.error) ?? { type: "ToolError", message: "Tool failed" },
+          ...(metadata ? { metadata } : {}),
+        },
+      },
+    ]
+  return [{ ...base, state: { status: "running", input, metadata: metadata ?? {} } }]
+}
+
+function structuredError(value: unknown): SessionStructuredError | undefined {
+  if (typeof value === "string") return { type: "Error", message: value }
+  if (!record(value)) return
+  if (typeof value.type === "string" && typeof value.message === "string")
+    return { type: value.type, message: value.message }
+  if (typeof value.name !== "string" || !record(value.data) || typeof value.data.message !== "string") return
+  return { type: value.name, message: value.data.message }
+}
+
+function tokens(value: unknown): SessionMessageAssistant["tokens"] | undefined {
+  if (!record(value) || !record(value.cache)) return
+  if (
+    typeof value.input !== "number" ||
+    typeof value.output !== "number" ||
+    typeof value.reasoning !== "number" ||
+    typeof value.cache.read !== "number" ||
+    typeof value.cache.write !== "number"
+  )
+    return
+  return {
+    input: value.input,
+    output: value.output,
+    reasoning: value.reasoning,
+    cache: { read: value.cache.read, write: value.cache.write },
+  }
+}
+
+function finish(value: unknown): SessionMessageAssistant["finish"] | undefined {
+  if (
+    value === "stop" ||
+    value === "length" ||
+    value === "tool-calls" ||
+    value === "content-filter" ||
+    value === "error" ||
+    value === "unknown"
+  )
+    return value
+}
+
+function jsonRecord(value: unknown): Record<string, JsonValue> | undefined {
+  if (!record(value)) return
+  return Object.fromEntries(
+    Object.entries(value).flatMap(([key, item]) => {
+      const next = jsonValue(item)
+      return next === undefined ? [] : [[key, next]]
+    }),
+  )
+}
+
+function jsonValue(value: unknown): JsonValue | undefined {
+  if (value === null || typeof value === "string" || typeof value === "boolean") return value
+  if (typeof value === "number") return Number.isFinite(value) ? value : null
+  if (Array.isArray(value)) return value.map((item) => jsonValue(item) ?? null)
+  return jsonRecord(value)
+}
+
+function record(value: unknown): value is Record<string, unknown> {
+  return !!value && typeof value === "object" && !Array.isArray(value)
+}
+
 function json(route: Route, body: unknown, headers?: Record<string, string>, status = 200) {
  return route.fulfill({
    status,
@@ -12,13 +12,18 @@
    "@cloudflare/workers-types": "catalog:",
    "@tsconfig/node22": "22.0.2",
    "@types/node": "catalog:",
+    "openai": "5.11.0",
    "typescript": "catalog:",
    "@typescript/native-preview": "catalog:"
  },
  "dependencies": {
+    "@ai-sdk/anthropic": "3.0.82",
+    "@ai-sdk/openai": "3.0.48",
+    "@ai-sdk/openai-compatible": "2.0.37",
    "@opencode-ai/console-core": "workspace:*",
    "@opencode-ai/console-resource": "workspace:*",
    "@openauthjs/openauth": "0.0.0-20250322224806",
+    "ai": "catalog:",
    "zod": "catalog:"
  }
 }
@@ -78,15 +78,18 @@
    "@ai-sdk/cohere": "3.0.27",
    "@ai-sdk/deepinfra": "2.0.41",
    "@ai-sdk/gateway": "3.0.104",
+    "@ai-sdk/google": "3.0.73",
    "@ai-sdk/google-vertex": "4.0.128",
    "@ai-sdk/groq": "3.0.31",
    "@ai-sdk/mistral": "3.0.51",
+    "@ai-sdk/openai": "3.0.84",
    "@ai-sdk/openai-compatible": "2.0.41",
    "@ai-sdk/perplexity": "3.0.26",
    "@ai-sdk/provider": "3.0.8",
    "@ai-sdk/provider-utils": "4.0.23",
    "@ai-sdk/togetherai": "2.0.41",
    "@ai-sdk/vercel": "2.0.39",
+    "@ai-sdk/xai": "3.0.102",
    "@aws-sdk/credential-providers": "3.1057.0",
    "@effect/platform-node": "catalog:",
    "@effect/sql-sqlite-bun": "catalog:",
@@ -103,6 +106,7 @@
    "@standard-schema/spec": "catalog:",
    "@parcel/watcher": "2.5.1",
    "@silvia-odwyer/photon-node": "0.3.4",
+    "@openrouter/ai-sdk-provider": "2.9.0",
    "ai-gateway-provider": "3.1.2",
    "bun-pty": "0.4.8",
    "diff": "catalog:",
@@ -413,7 +413,7 @@ function mapBodyToProviderOptions(model: Info, packageName: string) {
 function callOptions(request: LLMRequest): LanguageModelV3CallOptions {
  return {
    prompt: prompt(request),
-    maxOutputTokens: request.generation?.maxTokens,
+    maxOutputTokens: request.generation?.maxTokens ?? request.model.route.defaults.limits?.output,
    temperature: request.generation?.temperature,
    stopSequences: request.generation?.stop === undefined ? undefined : [...request.generation.stop],
    topP: request.generation?.topP,
@@ -71,14 +71,6 @@ const layer = Layer.effect(
          yield* updates.pipe(Stream.runForEach(publish), Effect.forkScoped)
        }
      }
-      if (location.vcs?.type === "hg") {
-        const store = location.vcs.store
-        const vcs = yield* fs.realPath(store).pipe(Effect.catch(() => Effect.succeed(store)))
-        if (!config.includes(".hg") && !config.includes(vcs)) {
-          const updates = yield* watcher.subscribe({ path: path.join(vcs, "branch"), type: "file" })
-          yield* updates.pipe(Stream.runForEach(publish), Effect.forkScoped)
-        }
-      }
    }).pipe(
      Effect.withSpan("LocationWatcher.start", { attributes: { directory: location.directory } }),
      Effect.catchCause((cause) => Effect.logError("failed to init location watcher service", { cause })),
@@ -2,7 +2,6 @@ export * as PluginPromise from "./promise"

 import { define } from "@opencode-ai/plugin/effect/plugin"
 import type { Context, Plugin } from "@opencode-ai/plugin/promise/plugin"
-import type { SessionHooks, SessionHttp, SessionHttpMiddleware } from "@opencode-ai/plugin/promise/session"
 import type { Info } from "@opencode-ai/plugin/promise/tool"
 import { Agent } from "@opencode-ai/schema/agent"
 import { Integration } from "@opencode-ai/schema/integration"
@@ -58,62 +57,6 @@ export function fromPromise(plugin: Plugin) {
              }),
            )

-        function sessionHook<Name extends keyof SessionHooks>(
-          name: Name,
-          callback: (event: SessionHooks[Name]) => Promise<void> | void,
-        ): Promise<Registration>
-        function sessionHook(
-          ...registration: {
-            [Name in keyof SessionHooks]: [
-              name: Name,
-              callback: (event: SessionHooks[Name]) => Promise<void> | void,
-            ]
-          }[keyof SessionHooks]
-        ) {
-          if (registration[0] !== "http")
-            return register(
-              host.session.hook(registration[0], (event) =>
-                Effect.promise(() => Promise.resolve(registration[1](event))),
-              ),
-            )
-          return register(
-            host.session.hook("http", (event) => {
-              const middlewares: SessionHttpMiddleware[] = []
-              const output: SessionHttp = {
-                ...event,
-                use: (item) => {
-                  middlewares.push(item)
-                },
-              }
-              return Effect.promise(() => Promise.resolve(registration[1](output))).pipe(
-                Effect.flatMap(() =>
-                  Effect.forEach(
-                    middlewares,
-                    (item) =>
-                      event.use((input, next) =>
-                        Effect.tryPromise({
-                          try: (signal) => {
-                            const inputSignal = AbortSignal.any([signal, input.signal])
-                            return Promise.resolve(
-                              item(new Request(input, { signal: inputSignal }), (request) => {
-                                const requestSignal = AbortSignal.any([signal, request.signal])
-                                return Effect.runPromiseWith(
-                                  context,
-                                )(next(new Request(request, { signal: requestSignal })), { signal: requestSignal })
-                              }),
-                            )
-                          },
-                          catch: (cause) => (cause instanceof Error ? cause : new Error(String(cause))),
-                        }),
-                      ),
-                    { discard: true },
-                  ),
-                ),
-              )
-            }),
-          )
-        }
-
        const context2: Context = {
          app: host.app,
          options: host.options,
@@ -251,9 +194,7 @@ export function fromPromise(plugin: Plugin) {
                              ),
                            ),
                          refresh:
-                            refresh === undefined
-                              ? undefined
-                              : (credential) => Effect.promise(() => refresh(credential)),
+                            refresh === undefined ? undefined : (credential) => Effect.promise(() => refresh(credential)),
                        })
                      },
                      remove: draft.method.remove,
@@ -322,7 +263,8 @@ export function fromPromise(plugin: Plugin) {
              ),
          },
          session: {
-            hook: sessionHook,
+            hook: (name, callback) =>
+              register(host.session.hook(name, (event) => Effect.promise(() => Promise.resolve(callback(event))))),
            create: (input) =>
              run(
                host.session.create(
@@ -11,6 +11,7 @@ import { DynamicProviderPlugin } from "./provider/dynamic"
 import { GatewayPlugin } from "./provider/gateway"
 import { GithubCopilotPlugin } from "./provider/github-copilot"
 import { GitLabPlugin } from "./provider/gitlab"
+import { GooglePlugin } from "./provider/google"
 import { GoogleVertexAnthropicPlugin, GoogleVertexPlugin } from "./provider/google-vertex"
 import { GroqPlugin } from "./provider/groq"
 import { KiloPlugin } from "./provider/kilo"
@@ -45,6 +46,7 @@ export const ProviderPlugins: PluginInternal.InternalPlugin[] = [
  GatewayPlugin,
  GithubCopilotPlugin,
  GitLabPlugin,
+  GooglePlugin,
  GoogleVertexAnthropicPlugin,
  GoogleVertexPlugin,
  GroqPlugin,
@@ -0,0 +1,16 @@
+import { Effect } from "effect"
+import { define } from "@opencode-ai/plugin/effect/plugin"
+
+export const GooglePlugin = define({
+  id: "opencode.provider.google",
+  effect: Effect.fn(function* (ctx) {
+    yield* ctx.aisdk.hook(
+      "sdk",
+      Effect.fn(function* (evt) {
+        if (evt.package !== "@ai-sdk/google") return
+        const mod = yield* Effect.promise(() => import("@ai-sdk/google"))
+        evt.sdk = mod.createGoogleGenerativeAI(evt.options)
+      }),
+    )
+  }),
+})
@@ -225,14 +225,15 @@ export const OpenAIPlugin = define({
        })
      }
    })
-    yield* ctx.session.hook("http", (evt) =>
-      evt.use((request, next) => {
-        if (!chatgpt || evt.model.providerID !== Provider.ID.openai) return next(request)
-        const url = new URL(request.url)
-        request.headers.set("originator", "opencode")
-        request.headers.set("session-id", evt.sessionID)
-        if (url.origin !== "https://api.openai.com") return next(request)
-        return next(new Request(`${codexBaseURL}${url.pathname.replace(/^\/v1/, "")}${url.search}`, request))
+    yield* ctx.session.hook("request", (evt) =>
+      Effect.sync(() => {
+        if (!chatgpt || evt.model.providerID !== Provider.ID.openai) return
+        const url = new URL(evt.url)
+        if (url.origin === "https://api.openai.com") {
+          evt.url = `${codexBaseURL}${url.pathname.replace(/^\/v1/, "")}${url.search}`
+        }
+        evt.headers.originator = "opencode"
+        evt.headers["session-id"] = evt.sessionID
      }),
    )

@@ -23,5 +23,13 @@ export const OpenRouterPlugin = define({
        }
      }
    })
+    yield* ctx.aisdk.hook(
+      "sdk",
+      Effect.fn(function* (evt) {
+        if (evt.package !== "@openrouter/ai-sdk-provider") return
+        const mod = yield* Effect.promise(() => import("@openrouter/ai-sdk-provider"))
+        evt.sdk = mod.createOpenRouter(evt.options)
+      }),
+    )
  }),
 })
@@ -6,6 +6,7 @@ import { App } from "../../app"
 import { Credential } from "../../credential"
 import { Integration } from "../../integration"
 import { OauthCallbackPage } from "../../oauth/page"
+import { Provider } from "../../provider"

 const clientID = "b1a00492-073a-47ea-816f-4c329264a828"
 const issuer = "https://auth.x.ai/oauth2"
@@ -161,6 +162,21 @@ export const XAIPlugin = define({
      draft.method.update(device(ctx.app))
      draft.method.update({ integrationID: "xai", method: { type: "key", label: "Manually enter API Key" } })
    })
+    yield* ctx.aisdk.hook(
+      "sdk",
+      Effect.fn(function* (evt) {
+        if (evt.package !== "@ai-sdk/xai") return
+        const mod = yield* Effect.promise(() => import("@ai-sdk/xai"))
+        evt.sdk = mod.createXai(evt.options)
+      }),
+    )
+    yield* ctx.aisdk.hook(
+      "language",
+      Effect.fn(function* (evt) {
+        if (evt.model.providerID !== Provider.ID.make("xai")) return
+        evt.language = evt.sdk.responses(evt.model.modelID ?? evt.model.id)
+      }),
+    )
  }),
 })

@@ -2,11 +2,9 @@ export * as SessionModelRequest from "./model-request"

 import { LLM, Message, SystemPart, type LLMRequest } from "@opencode-ai/ai"
 import type { StreamOptions } from "@opencode-ai/ai/route"
-import type { SessionHttpHandler, SessionHttpMiddleware } from "@opencode-ai/plugin/effect/session"
 import type { Content } from "@opencode-ai/schema/tool"
 import { SessionError } from "@opencode-ai/schema/session-error"
-import { Cause, Config, Context, Effect, Layer, Result, Stream } from "effect"
-import { HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { Cause, Config, Context, Effect, Layer, Result } from "effect"
 import { makeLocationNode } from "@opencode-ai/util/effect/app-node"
 import { App } from "../app"
 import { Model } from "../model"
@@ -50,7 +48,9 @@ interface Prepared {
   * One request-scoped execution operation. Unknown, hook-removed, and
   * step-limit-violating calls fail individually through the same seam.
   */
-  readonly executeTool: (input: Parameters<Tool.Snapshot["execute"]>[0]) => Effect.Effect<Tool.Result, ExecuteError>
+  readonly executeTool: (
+    input: Parameters<Tool.Snapshot["execute"]>[0],
+  ) => Effect.Effect<Tool.Result, ExecuteError>
  /** True when this request is the final Step; violating calls are rejected and no continuation follows. */
  readonly stepLimitReached: boolean
 }
@@ -137,7 +137,8 @@ export const boundImages = (messages: LLMRequest["messages"]) => {
          result: {
            ...part.result,
            value: part.result.value.map((item: Content) => {
-              if (item.type !== "file" || !isImage(item.mime) || imageBytes - removed <= IMAGE_BYTES_TARGET) return item
+              if (item.type !== "file" || !isImage(item.mime) || imageBytes - removed <= IMAGE_BYTES_TARGET)
+                return item
              removed += Buffer.byteLength(item.uri)
              return { type: "text" as const, text: IMAGE_REMOVED }
            }),
@@ -228,47 +229,24 @@ export const layer = Layer.effect(
        toolChoice: stepLimitReached ? "none" : undefined,
      })
      const options: StreamOptions = {
-        http: (request, handler) =>
-          Effect.gen(function* () {
-            let latest = request
-            const origins = new WeakMap<Response, HttpClientRequest.HttpClientRequest>()
-            const middlewares: SessionHttpMiddleware[] = []
-            const web = yield* HttpClientRequest.toWeb(request)
-            yield* hooks.trigger("session", "http", {
+        transform: (request) =>
+          hooks
+            .trigger("session", "request", {
              sessionID: session.id,
              agent: agent.id,
              model: resolved.ref,
-              use: (item) =>
-                Effect.sync(() => {
-                  middlewares.push(item)
-                }),
+              ...request,
            })
-            const send = (input: Request) =>
-              Effect.gen(function* () {
-                let sent = HttpClientRequest.fromWeb(input)
-                if (input.body)
-                  sent = HttpClientRequest.bodyUint8Array(
-                    sent,
-                    new Uint8Array(yield* Effect.promise(() => input.clone().arrayBuffer())),
-                    input.headers.get("content-type") ?? undefined,
-                  )
-                latest = sent
-                const response = yield* handler(sent)
-                const body = [204, 205, 304].includes(response.status)
-                  ? null
-                  : yield* Stream.toReadableStreamEffect(response.stream)
-                const output = new Response(body, { status: response.status, headers: response.headers })
-                origins.set(output, sent)
-                return output
-              })
-            const dispatch = middlewares.reduce<SessionHttpHandler>(
-              (next, item) => (input: Request) => item(input, next),
-              send,
-            )
-            const response = yield* dispatch(web)
-            const origin = origins.get(response) ?? latest
-            return HttpClientResponse.fromWeb(origin, response)
-          }).pipe(Effect.mapError((cause) => (cause instanceof Error ? cause : new Error(String(cause))))),
+            .pipe(
+              Effect.tap((event) =>
+                Effect.sync(() => {
+                  request.url = event.url
+                  request.headers = event.headers
+                  request.body = event.body
+                }),
+              ),
+              Effect.asVoid,
+            ),
      }
      if (promptCacheSnapshots) {
        const current = PromptCacheDiagnostics.snapshot(request)
@@ -1,16 +1,12 @@
 export * as Vcs from "./vcs"

-import path from "path"
-import { Context, Effect, Layer, Stream } from "effect"
+import { Context, Effect, Layer } from "effect"
 import { FileDiff } from "@opencode-ai/schema/file-diff"
-import { FileSystem } from "@opencode-ai/schema/filesystem"
 import { FileStatus, Info, Mode } from "@opencode-ai/schema/vcs"
-import { VcsEvent } from "@opencode-ai/schema/vcs-event"
 import { makeLocationNode } from "@opencode-ai/util/effect/app-node"
 import { FSUtil } from "@opencode-ai/util/fs-util"
 import { Location } from "./location"
 import { AppProcess } from "@opencode-ai/util/process"
-import { Bus } from "./bus"
 import { VcsGit } from "./vcs/git"
 import { VcsHg } from "./vcs/hg"

@@ -43,35 +39,11 @@ const layer = Layer.effect(
    const proc = yield* AppProcess.Service
    const fs = yield* FSUtil.Service
    const location = yield* Location.Service
-    const bus = yield* Bus.Service
    const impl = adapter(proc, fs, location)
-    const vcs = location.vcs
-    const state = { info: impl ? yield* impl.info() : { branch: {} } satisfies Info }
-
-    if (vcs && impl) {
-      const store = yield* fs.realPath(vcs.store).pipe(Effect.catch(() => Effect.succeed(vcs.store)))
-      const isBranchMetadata =
-        vcs.type === "git"
-          ? (file: string) => path.basename(file) === "HEAD" && FSUtil.contains(store, file)
-          : (file: string) => path.resolve(file) === path.join(store, "branch")
-      yield* bus.subscribe(FileSystem.Event.Changed).pipe(
-        Stream.filter((event) => isBranchMetadata(event.data.file)),
-        Stream.runForEach((event) =>
-          Effect.gen(function* () {
-            const next = yield* impl.info()
-            const changed = state.info.branch.current !== next.branch.current
-            state.info = next
-            if (!changed) return
-            yield* bus.publish(VcsEvent.BranchUpdated, { branch: next.branch.current })
-          }).pipe(Effect.withSpan("Vcs.refreshBranch", { attributes: { file: event.data.file } })),
-        ),
-        Effect.forkScoped({ startImmediately: true }),
-      )
-    }
-
    return Service.of({
      info: Effect.fn("Vcs.info")(function* () {
-        return state.info
+        if (!impl) return { branch: {} }
+        return yield* impl.info()
      }),
      status: Effect.fn("Vcs.status")(function* () {
        if (!impl) return []
@@ -88,5 +60,5 @@ const layer = Layer.effect(
 export const node = makeLocationNode({
  service: Service,
  layer: layer,
-  deps: [AppProcess.node, FSUtil.node, Location.node, Bus.node],
+  deps: [AppProcess.node, FSUtil.node, Location.node],
 })
@@ -98,23 +98,6 @@ it.effect("projects request settings, headers, and body overlays", () =>
  }),
 )

-it.effect("leaves max output tokens unset when the request omits them", () =>
-  Effect.gen(function* () {
-    const aisdk = yield* AISDK.Service
-    yield* aisdk.hook.sdk((event) => {
-      event.sdk = { languageModel: () => ({ provider: event.model.providerID }) }
-    })
-
-    const resolved = yield* aisdk.model({
-      ...model("@openrouter/ai-sdk-provider"),
-      limit: { context: 500_000, output: 500_000 },
-    })
-    const prepared = yield* compileRequest(LLM.request({ model: resolved, prompt: "Hello" }))
-
-    expect(prepared.body.maxOutputTokens).toBeUndefined()
-  }),
-)
-
 it.effect("maps pro reasoning bodies to AI SDK provider options", () =>
  Effect.gen(function* () {
    const aisdk = yield* AISDK.Service
@@ -153,16 +153,12 @@ function provide(directory: string, vcs?: Location.Interface["vcs"]) {

 function withTmp<A, E, R>(
  f: (directory: string, vcs?: Location.Interface["vcs"]) => Effect.Effect<A, E, R>,
-  options?: { vcs?: "git" | "hg"; init?: (directory: string) => Promise<void> },
+  options?: { git?: boolean; init?: (directory: string) => Promise<void> },
 ) {
  return Effect.acquireRelease(
    Effect.promise(async () => {
      const tmp = await tmpdir()
-      if (options?.vcs === "hg") {
-        await fs.mkdir(path.join(tmp.path, ".hg"))
-        return { tmp, vcs: { type: "hg" as const, store: AbsolutePath.make(path.join(tmp.path, ".hg")) } }
-      }
-      if (options?.vcs !== "git") return { tmp, vcs: undefined }
+      if (!options?.git) return { tmp, vcs: undefined }
      await $`git init`.cwd(tmp.path).quiet()
      await $`git config core.fsmonitor false`.cwd(tmp.path).quiet()
      await $`git config commit.gpgsign false`.cwd(tmp.path).quiet()
@@ -296,7 +292,7 @@ describeWatcher("LocationWatcher", () => {
            })
          }
        }),
-      { vcs: "git" },
+      { git: true },
    ),
  )

@@ -326,7 +322,7 @@ describeWatcher("LocationWatcher", () => {
            }),
          )
        }),
-      { vcs: "git" },
+      { git: true },
    ),
  )

@@ -363,7 +359,7 @@ describeWatcher("LocationWatcher", () => {
              .pipe(Effect.andThen(Effect.promise(() => $`git add .`.cwd(directory).quiet())), Effect.asVoid),
          )
        }),
-      { vcs: "git" },
+      { git: true },
    ),
  )

@@ -380,7 +376,7 @@ describeWatcher("LocationWatcher", () => {
            yield* nextUpdate((event) => event.file === head, fs.writeFileString(head, `ref: refs/heads/${branch}\n`)),
          ).toMatchObject({ file: head })
        }),
-      { vcs: "git" },
+      { git: true },
    ),
  )

@@ -405,7 +401,7 @@ describeWatcher("LocationWatcher", () => {
            ).toEqual({ file: path.join(actual, "HEAD"), event: "change" })
          }),
        {
-          vcs: "git",
+          git: true,
          init: async (directory) => {
            const actual = path.join(directory, "..", `actual_${path.basename(directory)}`)
            await fs.rename(path.join(directory, ".git"), actual)
@@ -415,19 +411,4 @@ describeWatcher("LocationWatcher", () => {
      ),
    )
  })
-
-  it.live("publishes .hg/branch events", () =>
-    withTmp(
-      (directory) =>
-        Effect.gen(function* () {
-          const fs = yield* FSUtil.Service
-          const branch = path.join(directory, ".hg", "branch")
-          yield* ready(directory)
-          expect(
-            yield* nextUpdate((event) => event.file === branch, fs.writeFileString(branch, "feature\n")),
-          ).toMatchObject({ file: branch })
-        }),
-      { vcs: "hg" },
-    ),
-  )
 })
@@ -1,6 +1,6 @@
 import { describe, expect } from "bun:test"
 import { Message, SystemPart } from "@opencode-ai/ai"
-import { DateTime, Deferred, Effect, Fiber, Schema } from "effect"
+import { DateTime, Effect, Schema } from "effect"
 import { Agent } from "@opencode-ai/core/agent"
 import { Catalog } from "@opencode-ai/core/catalog"
 import { Model } from "@opencode-ai/core/model"
@@ -15,7 +15,7 @@ import { SessionPending } from "@opencode-ai/core/session/pending"
 import { Tool } from "@opencode-ai/core/tool"
 import { Provider } from "@opencode-ai/core/provider"
 import { define } from "@opencode-ai/plugin/promise/plugin"
-import type { SessionHooks, SessionHttpHandler } from "@opencode-ai/plugin/effect/session"
+import type { SessionHooks } from "@opencode-ai/plugin/effect/session"
 import { testEffect } from "../lib/effect"
 import { PluginTestLayer } from "./fixture"
 import { host as testHost } from "./host"
@@ -148,9 +148,7 @@ describe("fromPromise", () => {
            expect((await ctx.agent.get({ agentID: Agent.ID.make("reviewer") })).data).toMatchObject({
              description: "Reviews code",
            })
-            await expect(ctx.agent.get({ agentID: Agent.ID.make("missing") })).rejects.toThrow(
-              "Agent not found: missing",
-            )
+            await expect(ctx.agent.get({ agentID: Agent.ID.make("missing") })).rejects.toThrow("Agent not found: missing")
            const models = (await ctx.catalog.model.list()).data
            expect(models.find((model) => model.providerID === "test" && model.id === "alias")).toMatchObject({
              modelID: "gpt-5",
@@ -223,105 +221,6 @@ describe("fromPromise", () => {
    }),
  )

-  it.effect("adapts promise session HTTP hooks", () =>
-    Effect.gen(function* () {
-      const plugin = yield* Plugin.Service
-      const hooks = yield* PluginHooks.Service
-      const host = yield* PluginHost.make(plugin)
-      const bodies: string[] = []
-      yield* PluginPromise.fromPromise(
-        define({
-          id: "promise-session-http",
-          setup: async (ctx) => {
-            await ctx.session.hook("http", (event) => {
-              event.use(async (request, next) => {
-                request.headers.set("x-hook", "promise")
-                await next(request)
-                const response = await next(request)
-                return new Response(`${await response.text()}-response`)
-              })
-            })
-            await ctx.session.hook("http", (event) => {
-              event.use(async (request, next) => {
-                const response = await next(request)
-                return new Response(`${await response.text()}-outer`)
-              })
-            })
-          },
-        }),
-      ).effect(host)
-      const middlewares: Parameters<PluginHooks.Domains["session"]["http"]["use"]>[0][] = []
-      const event: PluginHooks.Domains["session"]["http"] = {
-        sessionID: Session.ID.make("ses_promise_session_http"),
-        agent: Agent.ID.make("build"),
-        model: Model.Ref.make({ providerID: Provider.ID.make("test"), id: Model.ID.make("model") }),
-        use: (item) =>
-          Effect.sync(() => {
-            middlewares.push(item)
-          }),
-      }
-
-      yield* hooks.trigger("session", "http", event)
-      const request = middlewares.reduce<SessionHttpHandler>(
-        (next, item) => (input: Request) => item(input, next),
-        (input: Request) =>
-          Effect.promise(() => input.text()).pipe(
-            Effect.tap((body) => Effect.sync(() => bodies.push(body))),
-            Effect.as(new Response(input.headers.get("x-hook") ?? "missing")),
-          ),
-      )
-      const response = yield* request(new Request("https://provider.test", { method: "POST", body: "payload" }))
-
-      expect(bodies).toEqual(["payload", "payload"])
-      expect(yield* Effect.promise(() => response.text())).toBe("promise-response-outer")
-    }),
-  )
-
-  it.effect("interrupts the Effect request through a promise session HTTP hook", () =>
-    Effect.gen(function* () {
-      const plugin = yield* Plugin.Service
-      const hooks = yield* PluginHooks.Service
-      const host = yield* PluginHost.make(plugin)
-      yield* PluginPromise.fromPromise(
-        define({
-          id: "promise-session-http-interrupt",
-          setup: async (ctx) => {
-            await ctx.session.hook("http", (event) => {
-              event.use((request, next) => next(request))
-            })
-          },
-        }),
-      ).effect(host)
-      const started = yield* Deferred.make<void>()
-      const interrupted = yield* Deferred.make<void>()
-      const middlewares: Parameters<PluginHooks.Domains["session"]["http"]["use"]>[0][] = []
-      const event: PluginHooks.Domains["session"]["http"] = {
-        sessionID: Session.ID.make("ses_promise_session_http_interrupt"),
-        agent: Agent.ID.make("build"),
-        model: Model.Ref.make({ providerID: Provider.ID.make("test"), id: Model.ID.make("model") }),
-        use: (item) =>
-          Effect.sync(() => {
-            middlewares.push(item)
-          }),
-      }
-
-      yield* hooks.trigger("session", "http", event)
-      const request = middlewares.reduce<SessionHttpHandler>(
-        (next, item) => (input: Request) => item(input, next),
-        () =>
-          Deferred.succeed(started, undefined).pipe(
-            Effect.andThen(Effect.never),
-            Effect.onInterrupt(() => Deferred.succeed(interrupted, undefined)),
-          ),
-      )
-      const fiber = yield* request(new Request("https://provider.test")).pipe(Effect.forkChild)
-      yield* Deferred.await(started)
-      yield* Fiber.interrupt(fiber)
-
-      expect(yield* Deferred.isDone(interrupted)).toBeTrue()
-    }),
-  )
-
  it.effect("disposes a hook registration on request", () =>
    Effect.gen(function* () {
      const agents = yield* Agent.Service
@@ -416,17 +315,19 @@ describe("fromPromise", () => {
        id: "promise-tool",
        setup: async (ctx) => {
          await ctx.tool.transform((tools) => {
-            tools.add({
-              name: "hello",
-              options: { codemode: false },
-              description: "Hello",
-              input: Schema.Struct({ name: Schema.String }),
-              output: Schema.String,
-              execute: async ({ name }, context) => {
-                await context.progress({ phase: "greeting" })
-                return { output: `Hello, ${name}!` }
+            tools.add(
+              {
+                name: "hello",
+                options: { codemode: false },
+                description: "Hello",
+                input: Schema.Struct({ name: Schema.String }),
+                output: Schema.String,
+                execute: async ({ name }, context) => {
+                  await context.progress({ phase: "greeting" })
+                  return { output: `Hello, ${name}!` }
+                },
              },
-            })
+            )
          })
        },
      })
@@ -0,0 +1,103 @@
+import { AISDK } from "@opencode-ai/core/aisdk"
+import { describe, expect } from "bun:test"
+import { Effect } from "effect"
+import { Model } from "@opencode-ai/core/model"
+import { Plugin } from "@opencode-ai/core/plugin"
+import { PluginHost } from "@opencode-ai/core/plugin/host"
+import { GooglePlugin } from "@opencode-ai/core/plugin/provider/google"
+import { Provider } from "@opencode-ai/core/provider"
+import { testEffect } from "../lib/effect"
+import { PluginTestLayer } from "./fixture"
+
+const it = testEffect(PluginTestLayer)
+
+const addPlugin = Effect.fn(function* () {
+  const plugin = yield* Plugin.Service
+  const aisdk = yield* AISDK.Service
+  const host = yield* PluginHost.make(plugin)
+  yield* GooglePlugin.effect(host)
+})
+
+describe("GooglePlugin", () => {
+  it.effect("creates a Google Generative AI SDK for @ai-sdk/google using the provider ID as SDK name", () =>
+    Effect.gen(function* () {
+      const plugin = yield* Plugin.Service
+      const aisdk = yield* AISDK.Service
+      yield* addPlugin()
+      const result = yield* aisdk.runSDK({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.make("custom-google"), Model.ID.make("gemini")),
+          modelID: Model.ID.make("gemini"),
+          package: "aisdk:@ai-sdk/google",
+        }),
+        package: "@ai-sdk/google",
+        options: { name: "custom-google", apiKey: "test" },
+      })
+      expect(result.sdk).toBeDefined()
+      expect(result.sdk?.languageModel("gemini").provider).toBe("custom-google")
+    }),
+  )
+
+  it.effect("ignores non-Google SDK packages", () =>
+    Effect.gen(function* () {
+      const plugin = yield* Plugin.Service
+      const aisdk = yield* AISDK.Service
+      yield* addPlugin()
+      const result = yield* aisdk.runSDK({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.make("google"), Model.ID.make("gemini")),
+          modelID: Model.ID.make("gemini"),
+          package: "aisdk:@ai-sdk/google",
+        }),
+        package: "@ai-sdk/google-vertex",
+        options: { name: "google" },
+      })
+      expect(result.sdk).toBeUndefined()
+    }),
+  )
+
+  it.effect("uses default languageModel loading with provider ID parity", () =>
+    Effect.gen(function* () {
+      const plugin = yield* Plugin.Service
+      const aisdk = yield* AISDK.Service
+      yield* addPlugin()
+      const sdkEvent = yield* aisdk.runSDK({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.make("custom-google"), Model.ID.make("alias")),
+          modelID: Model.ID.make("gemini-api"),
+          package: "aisdk:@ai-sdk/google",
+        }),
+        package: "@ai-sdk/google",
+        options: { name: "custom-google", apiKey: "test" },
+      })
+      const result = yield* aisdk.runLanguage({
+        model: sdkEvent.model,
+        sdk: sdkEvent.sdk,
+        options: sdkEvent.options,
+      })
+      const language = result.language ?? result.sdk.languageModel(result.model.modelID ?? result.model.id)
+      expect(language.modelId).toBe("gemini-api")
+      expect(language.provider).toBe("custom-google")
+    }),
+  )
+
+  it.effect("wraps AI SDK language models for the native runner", () =>
+    Effect.gen(function* () {
+      const aisdk = yield* AISDK.Service
+      yield* addPlugin()
+
+      const resolved = yield* aisdk.model(
+        Model.Info.make({
+          ...Model.Info.default(Provider.ID.make("custom-google"), Model.ID.make("alias")),
+          modelID: Model.ID.make("gemini-api"),
+          package: "aisdk:@ai-sdk/google",
+          settings: { apiKey: "test" },
+        }),
+      )
+
+      expect(String(resolved.id)).toBe("gemini-api")
+      expect(String(resolved.provider)).toBe("custom-google")
+      expect(resolved.route.id).toBe("ai-sdk:@ai-sdk/google")
+    }),
+  )
+})
@@ -12,7 +12,6 @@ import { PluginHost } from "@opencode-ai/core/plugin/host"
 import { PluginHooks } from "@opencode-ai/core/plugin/hooks"
 import { OpenAIPlugin } from "@opencode-ai/core/plugin/provider/openai"
 import { Provider } from "@opencode-ai/core/provider"
-import type { SessionHttpHandler } from "@opencode-ai/plugin/effect/session"
 import { testEffect } from "../lib/effect"
 import { PluginTestLayer } from "./fixture"

@@ -30,29 +29,6 @@ function required<T>(value: T | undefined): T {
  return value
 }

-const http = Effect.fn(function* (providerID: Provider.ID, url: string) {
-  const middlewares: Parameters<PluginHooks.Domains["session"]["http"]["use"]>[0][] = []
-  yield* (yield* PluginHooks.Service).trigger("session", "http", {
-    sessionID: Session.ID.make("ses_test"),
-    agent: Agent.ID.make("build"),
-    model: Model.Ref.make({ providerID, id: Model.ID.make("gpt-5.5") }),
-    use: (item) =>
-      Effect.sync(() => {
-        middlewares.push(item)
-      }),
-  })
-  const request = middlewares.reduce<SessionHttpHandler>(
-    (next, item) => (input: Request) => item(input, next),
-    (input: Request) => {
-      const headers = new Headers(input.headers)
-      headers.set("x-seen-url", input.url)
-      return Effect.succeed(new Response(null, { headers }))
-    },
-  )
-  const response = yield* request(new Request(url, { method: "POST", body: "{}" }))
-  return { url: response.headers.get("x-seen-url"), headers: Object.fromEntries(response.headers.entries()) }
-})
-
 describe("OpenAIPlugin", () => {
  it.effect("registers browser and headless ChatGPT OAuth methods", () =>
    Effect.gen(function* () {
@@ -124,9 +100,33 @@ describe("OpenAIPlugin", () => {
      })
      yield* addPlugin()

-      const request = yield* http(Provider.ID.openai, "https://api.openai.com/v1/responses")
-      const custom = yield* http(Provider.ID.make("custom-openai"), "https://custom.example/v1/responses")
-      const proxy = yield* http(Provider.ID.openai, "https://proxy.example/v1/responses?region=us")
+      const request = yield* (yield* PluginHooks.Service).trigger("session", "request", {
+        sessionID: Session.ID.make("ses_test"),
+        agent: Agent.ID.make("build"),
+        model: Model.Ref.make({ providerID: Provider.ID.openai, id: Model.ID.make("gpt-5.5") }),
+        url: "https://api.openai.com/v1/responses",
+        method: "POST",
+        headers: {},
+        body: "{}",
+      })
+      const custom = yield* (yield* PluginHooks.Service).trigger("session", "request", {
+        sessionID: Session.ID.make("ses_test"),
+        agent: Agent.ID.make("build"),
+        model: Model.Ref.make({ providerID: Provider.ID.make("custom-openai"), id: Model.ID.make("gpt-5.5") }),
+        url: "https://custom.example/v1/responses",
+        method: "POST",
+        headers: {},
+        body: "{}",
+      })
+      const proxy = yield* (yield* PluginHooks.Service).trigger("session", "request", {
+        sessionID: Session.ID.make("ses_test"),
+        agent: Agent.ID.make("build"),
+        model: Model.Ref.make({ providerID: Provider.ID.openai, id: Model.ID.make("gpt-5.5") }),
+        url: "https://proxy.example/v1/responses?region=us",
+        method: "POST",
+        headers: {},
+        body: "{}",
+      })

      const provider = required(yield* catalog.provider.get(Provider.ID.openai))
      expect(provider.package).toBe("@opencode-ai/ai/providers/openai")
@@ -134,7 +134,7 @@ describe("OpenAIPlugin", () => {
      expect(provider.headers).toMatchObject({ "chatgpt-account-id": "acct_123" })
      expect(request.url).toBe("https://chatgpt.com/backend-api/codex/responses")
      expect(request.headers).toMatchObject({ originator: "opencode", "session-id": "ses_test" })
-      expect(custom.headers).not.toHaveProperty("originator")
+      expect(custom.headers).toEqual({})
      expect(proxy.url).toBe("https://proxy.example/v1/responses?region=us")
      expect(proxy.headers).toMatchObject({ originator: "opencode", "session-id": "ses_test" })
      const eligible = required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5.5")))
@@ -184,13 +184,21 @@ describe("OpenAIPlugin", () => {
      })
      yield* addPlugin()

-      const request = yield* http(Provider.ID.openai, "https://api.openai.com/v1/responses")
+      const request = yield* (yield* PluginHooks.Service).trigger("session", "request", {
+        sessionID: Session.ID.make("ses_test"),
+        agent: Agent.ID.make("build"),
+        model: Model.Ref.make({ providerID: Provider.ID.openai, id: Model.ID.make("gpt-5.5") }),
+        url: "https://api.openai.com/v1/responses",
+        method: "POST",
+        headers: {},
+        body: "{}",
+      })

      const model = required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5.5")))
      expect(model.package).toBe("@opencode-ai/ai/providers/openai")
      expect(model.enabled).toBe(true)
      expect(model.limit).toEqual({ context: 1_050_000, input: 922_000, output: 128_000 })
-      expect(request.headers).not.toHaveProperty("originator")
+      expect(request.headers).toEqual({})
      expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-4.1"))).enabled).toBe(true)
    }),
  )
@@ -1,3 +1,4 @@
+import { AISDK } from "@opencode-ai/core/aisdk"
 import { describe, expect } from "bun:test"
 import { Effect } from "effect"
 import { Catalog } from "@opencode-ai/core/catalog"
@@ -14,6 +15,7 @@ const it = testEffect(PluginTestLayer)

 const addPlugin = Effect.fn(function* () {
  const plugin = yield* Plugin.Service
+  const aisdk = yield* AISDK.Service
  const host = yield* PluginHost.make(plugin)
  yield* OpenRouterPlugin.effect(host)
 })
@@ -44,6 +46,36 @@ describe("OpenRouterPlugin", () => {
    }),
  )

+  it.effect("creates an SDK only for the OpenRouter package", () =>
+    Effect.gen(function* () {
+      const plugin = yield* Plugin.Service
+      const aisdk = yield* AISDK.Service
+      yield* addPlugin()
+
+      const ignored = yield* aisdk.runSDK({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.openrouter, Model.ID.make("openai/gpt-5")),
+          modelID: Model.ID.make("openai/gpt-5"),
+          package: Provider.aisdk("test-provider"),
+        }),
+        package: "@ai-sdk/openai-compatible",
+        options: { name: "openrouter" },
+      })
+      expect(ignored.sdk).toBeUndefined()
+
+      const result = yield* aisdk.runSDK({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.make("custom"), Model.ID.make("openai/gpt-5")),
+          modelID: Model.ID.make("openai/gpt-5"),
+          package: Provider.aisdk("test-provider"),
+        }),
+        package: "@openrouter/ai-sdk-provider",
+        options: { name: "custom" },
+      })
+      expect(result.sdk).toBeDefined()
+    }),
+  )
+
  it.effect("filters OpenRouter's gpt-5 chat alias", () =>
    Effect.gen(function* () {
      const catalog = yield* Catalog.Service
@@ -1,9 +1,13 @@
+import { AISDK } from "@opencode-ai/core/aisdk"
+import type { LanguageModelV3 } from "@ai-sdk/provider"
 import { describe, expect } from "bun:test"
 import { Effect } from "effect"
 import { Integration } from "@opencode-ai/core/integration"
+import { Model } from "@opencode-ai/core/model"
 import { Plugin } from "@opencode-ai/core/plugin"
 import { PluginHost } from "@opencode-ai/core/plugin/host"
 import { XAIPlugin } from "@opencode-ai/core/plugin/provider/xai"
+import { Provider } from "@opencode-ai/core/provider"
 import { testEffect } from "../lib/effect"
 import { PluginTestLayer } from "./fixture"

@@ -15,6 +19,19 @@ const addPlugin = Effect.fn(function* () {
  yield* XAIPlugin.effect(host)
 })

+function fakeSelectorSdk(calls: string[]) {
+  const make = (method: string) => (id: string) => {
+    calls.push(`${method}:${id}`)
+    return { modelId: id, provider: method, specificationVersion: "v3" } as unknown as LanguageModelV3
+  }
+  return {
+    responses: make("responses"),
+    messages: make("messages"),
+    chat: make("chat"),
+    languageModel: make("languageModel"),
+  }
+}
+
 describe("XAIPlugin", () => {
  it.effect("registers browser OAuth, device OAuth, and API key methods", () =>
    Effect.gen(function* () {
@@ -37,4 +54,95 @@ describe("XAIPlugin", () => {
      ])
    }),
  )
+
+  it.effect("creates an xAI SDK only for @ai-sdk/xai", () =>
+    Effect.gen(function* () {
+      const aisdk = yield* AISDK.Service
+      yield* addPlugin()
+
+      const ignored = yield* aisdk.runSDK({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.make("xai"), Model.ID.make("grok-4")),
+          modelID: Model.ID.make("grok-4"),
+          package: "aisdk:@ai-sdk/xai",
+        }),
+        package: "@ai-sdk/openai-compatible",
+        options: {},
+      })
+
+      const result = yield* aisdk.runSDK({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.make("xai"), Model.ID.make("grok-4")),
+          modelID: Model.ID.make("grok-4"),
+          package: "aisdk:@ai-sdk/xai",
+        }),
+        package: "@ai-sdk/xai",
+        options: {},
+      })
+
+      expect(ignored.sdk).toBeUndefined()
+      expect(typeof result.sdk?.responses).toBe("function")
+    }),
+  )
+
+  it.effect("creates xAI SDKs for custom provider IDs", () =>
+    Effect.gen(function* () {
+      const aisdk = yield* AISDK.Service
+      yield* addPlugin()
+
+      const result = yield* aisdk.runSDK({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.make("custom-xai"), Model.ID.make("grok-4")),
+          modelID: Model.ID.make("grok-4"),
+          package: "aisdk:@ai-sdk/xai",
+        }),
+        package: "@ai-sdk/xai",
+        options: {},
+      })
+
+      expect(result.sdk.responses("grok-4").provider).toBe("xai.responses")
+    }),
+  )
+
+  it.effect("uses responses with the model modelID for xAI language models", () =>
+    Effect.gen(function* () {
+      const aisdk = yield* AISDK.Service
+      const calls: string[] = []
+
+      yield* addPlugin()
+      const result = yield* aisdk.runLanguage({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.make("xai"), Model.ID.make("alias")),
+          modelID: Model.ID.make("grok-4"),
+          package: "aisdk:@ai-sdk/xai",
+        }),
+        sdk: fakeSelectorSdk(calls),
+        options: {},
+      })
+
+      expect(calls).toEqual(["responses:grok-4"])
+      expect(result.language).toBeDefined()
+    }),
+  )
+
+  it.effect("ignores non-xAI providers", () =>
+    Effect.gen(function* () {
+      const aisdk = yield* AISDK.Service
+      const calls: string[] = []
+
+      yield* addPlugin()
+      const result = yield* aisdk.runLanguage({
+        model: Model.Info.make({
+          ...Model.Info.default(Provider.ID.openai, Model.ID.make("grok-4")),
+          modelID: Model.ID.make("grok-4"),
+          package: "aisdk:@ai-sdk/xai",
+        }),
+        sdk: fakeSelectorSdk(calls),
+        options: {},
+      })
+
+      expect(calls).toEqual([])
+      expect(result.language).toBeUndefined()
+    }),
+  )
 })
@@ -0,0 +1,32 @@
+import { createXai } from "@ai-sdk/xai"
+import { expect, test } from "bun:test"
+
+test("xAI Responses sends promptCacheKey as prompt_cache_key", async () => {
+  let body: Record<string, unknown> | undefined
+  const mockFetch = Object.assign(
+    async (_input: Parameters<typeof fetch>[0], init?: RequestInit) => {
+      body = JSON.parse(String(init?.body))
+      return Response.json({
+        id: "response-1",
+        created_at: 0,
+        model: "grok-4",
+        object: "response",
+        output: [],
+        usage: { input_tokens: 1, output_tokens: 0 },
+        status: "completed",
+      })
+    },
+    { preconnect: fetch.preconnect },
+  )
+  const model = createXai({
+    apiKey: "test",
+    fetch: mockFetch,
+  }).responses("grok-4")
+
+  await model.doGenerate({
+    prompt: [{ role: "user", content: [{ type: "text", text: "Hello" }] }],
+    providerOptions: { xai: { promptCacheKey: "session-123" } },
+  })
+
+  expect(body?.prompt_cache_key).toBe("session-123")
+})
@@ -41,7 +41,6 @@ import { SystemPromptPlugin } from "@opencode-ai/core/plugin/system-prompt"
 import { describe, expect } from "bun:test"
 import { eq } from "drizzle-orm"
 import { Effect, Layer, Stream } from "effect"
-import { HttpClient, HttpClientResponse } from "effect/unstable/http"
 import path from "node:path"
 import { testEffect } from "./lib/effect"
 import { agentHost, catalogHost, host } from "./plugin/host"
@@ -105,39 +104,37 @@ const promptCatalog = Layer.mock(Catalog.Service, {
    small: () => Effect.succeed(undefined),
  },
 })
-const runnerLayer = (llmClient: Layer.Layer<typeof LLMClient.Service>) =>
-  AppNodeBuilder.build(SessionRunnerLLM.node, [
-    [Snapshot.node, Snapshot.noopLayer],
-    [LayerNodePlatform.llmClient, llmClient],
-    [SessionRunnerModel.node, models],
-    [InstructionBuiltIns.node, systemContext],
-    [InstructionDiscovery.node, instructionContext],
-    [Location.node, Location.boundNode({ directory: AbsolutePath.make("/project") })],
-    [SkillInstructions.node, skillInstructions],
-    [ReferenceInstructions.node, referenceInstructions],
-    [McpInstructions.node, mcpInstructions],
-    [Config.node, config],
-    [Permission.node, permission],
-    [PluginSupervisor.node, pluginSupervisor],
-  ])
-const execution = (llmClient: Layer.Layer<typeof LLMClient.Service>) =>
-  Layer.effect(
-    SessionExecution.Service,
-    Effect.gen(function* () {
-      const sessionRunner = yield* SessionRunner.Service
-      const coordinator = yield* SessionRunCoordinator.make<Session.ID, SessionRunner.RunError>({
-        drain: (sessionID, force) => sessionRunner.drain({ sessionID, force }),
-      })
-      return SessionExecution.Service.of({
-        active: coordinator.active,
-        resume: coordinator.run,
-        wake: coordinator.wake,
-        interrupt: coordinator.interrupt,
-        awaitIdle: coordinator.awaitIdle,
-      })
-    }),
-  ).pipe(Layer.provide(runnerLayer(llmClient)))
-const testLayer = (llmClient: Layer.Layer<typeof LLMClient.Service>) =>
+const runnerLayer = AppNodeBuilder.build(SessionRunnerLLM.node, [
+  [Snapshot.node, Snapshot.noopLayer],
+  [LayerNodePlatform.llmClient, client],
+  [SessionRunnerModel.node, models],
+  [InstructionBuiltIns.node, systemContext],
+  [InstructionDiscovery.node, instructionContext],
+  [Location.node, Location.boundNode({ directory: AbsolutePath.make("/project") })],
+  [SkillInstructions.node, skillInstructions],
+  [ReferenceInstructions.node, referenceInstructions],
+  [McpInstructions.node, mcpInstructions],
+  [Config.node, config],
+  [Permission.node, permission],
+  [PluginSupervisor.node, pluginSupervisor],
+])
+const execution = Layer.effect(
+  SessionExecution.Service,
+  Effect.gen(function* () {
+    const sessionRunner = yield* SessionRunner.Service
+    const coordinator = yield* SessionRunCoordinator.make<Session.ID, SessionRunner.RunError>({
+      drain: (sessionID, force) => sessionRunner.drain({ sessionID, force }),
+    })
+    return SessionExecution.Service.of({
+      active: coordinator.active,
+      resume: coordinator.run,
+      wake: coordinator.wake,
+      interrupt: coordinator.interrupt,
+      awaitIdle: coordinator.awaitIdle,
+    })
+  }),
+).pipe(Layer.provide(runnerLayer))
+const it = testEffect(
  AppNodeBuilder.build(
    LayerNode.group([
      Database.node,
@@ -159,7 +156,7 @@ const testLayer = (llmClient: Layer.Layer<typeof LLMClient.Service>) =>
      Session.node,
    ]),
    [
-      [LayerNodePlatform.llmClient, llmClient],
+      [LayerNodePlatform.llmClient, client],
      [Permission.node, permission],
      [Catalog.node, promptCatalog],
      [SessionRunnerModel.node, models],
@@ -171,10 +168,10 @@ const testLayer = (llmClient: Layer.Layer<typeof LLMClient.Service>) =>
      [Config.node, config],
      [Snapshot.node, Snapshot.noopLayer],
      [PluginSupervisor.node, pluginSupervisor],
-      [SessionExecution.node, execution(llmClient)],
+      [SessionExecution.node, execution],
    ],
-  )
-const it = testEffect(testLayer(client))
+  ),
+)
 const sessionID = Session.ID.make("ses_runner_recorded")

 describe("SessionRunnerLLM recorded", () => {
@@ -250,90 +247,3 @@ describe("SessionRunnerLLM recorded", () => {
    }),
  )
 })
-
-describe("SessionModelRequest HTTP bridge", () => {
-  const bodies: Uint8Array[] = []
-  const methods: string[] = []
-  const response = [
-    'data: {"id":"chatcmpl_test","object":"chat.completion.chunk","created":0,"model":"gpt-4o-mini","choices":[{"index":0,"delta":{"role":"assistant","content":"Hello!"},"finish_reason":null}]}',
-    'data: {"id":"chatcmpl_test","object":"chat.completion.chunk","created":0,"model":"gpt-4o-mini","choices":[{"index":0,"delta":{},"finish_reason":"stop"}]}',
-    "data: [DONE]",
-    "",
-  ].join("\n\n")
-  const transport = Layer.succeed(
-    HttpClient.HttpClient,
-    HttpClient.make((request) =>
-      Effect.sync(() => {
-        if (request.body._tag !== "Uint8Array") throw new Error(`Unexpected request body: ${request.body._tag}`)
-        methods.push(request.method)
-        bodies.push(request.body.body.slice())
-        return HttpClientResponse.fromWeb(
-          request,
-          new Response(response, { headers: { "content-type": "text/event-stream" } }),
-        )
-      }),
-    ),
-  )
-  const retryIt = testEffect(
-    testLayer(LLMClient.layer.pipe(Layer.provide(RequestExecutor.layer.pipe(Layer.provide(transport))))),
-  )
-
-  retryIt.effect("lets an Effect plugin send the same POST Request twice", () =>
-    Effect.gen(function* () {
-      bodies.length = 0
-      methods.length = 0
-      const agents = yield* Agent.Service
-      const catalog = yield* Catalog.Service
-      const hooks = yield* PluginHooks.Service
-      yield* agents.transform((draft) =>
-        draft.update(Agent.ID.make("build"), (agent) => {
-          agent.mode = "primary"
-          agent.permissions.push({ action: "execute", resource: "*", effect: "deny" })
-        }),
-      )
-      const pluginHost = host({
-        agent: agentHost(agents),
-        catalog: catalogHost(catalog),
-        session: { hook: (name, callback) => hooks.register("session", name, callback) },
-      })
-      yield* pluginHost.session.hook("http", (event) =>
-        event.use((request, next) =>
-          Effect.gen(function* () {
-            yield* next(request).pipe(Effect.flatMap((response) => Effect.promise(() => response.text())))
-            return yield* next(request)
-          }),
-        ),
-      )
-      yield* Effect.forEach(SystemPromptPlugin.Plugins, (plugin) => plugin.effect(pluginHost), { discard: true })
-      const { db } = yield* Database.Service
-      yield* db
-        .insert(ProjectTable)
-        .values({ id: Project.ID.global, worktree: AbsolutePath.make("/project"), sandboxes: [] })
-        .onConflictDoNothing()
-        .run()
-        .pipe(Effect.orDie)
-      const retrySessionID = Session.ID.make("ses_model_request_http_retry")
-      yield* db
-        .insert(SessionTable)
-        .values({
-          id: retrySessionID,
-          project_id: Project.ID.global,
-          slug: "test",
-          directory: "/project",
-          title: "test",
-          version: "test",
-        })
-        .run()
-        .pipe(Effect.orDie)
-      const session = yield* Session.Service
-      yield* session.prompt({ sessionID: retrySessionID, text: "Say hello.", resume: false })
-
-      yield* session.resume(retrySessionID)
-
-      expect(methods).toEqual(["POST", "POST"])
-      expect(bodies).toHaveLength(2)
-      expect(bodies[0]?.byteLength).toBeGreaterThan(0)
-      expect(bodies[1]).toEqual(bodies[0])
-    }),
-  )
-})
@@ -2,14 +2,11 @@ import { $ } from "bun"
 import { describe, expect } from "bun:test"
 import fs from "fs/promises"
 import path from "path"
-import { Effect, Fiber, Layer, Stream } from "effect"
+import { Effect, Layer } from "effect"
 import { LayerNode } from "@opencode-ai/util/effect/layer-node"
-import { Bus } from "@opencode-ai/core/bus"
 import { Location } from "@opencode-ai/core/location"
 import { AbsolutePath } from "@opencode-ai/core/schema"
 import { Vcs } from "@opencode-ai/core/vcs"
-import { FileSystem } from "@opencode-ai/schema/filesystem"
-import { VcsEvent } from "@opencode-ai/schema/vcs-event"
 import { location } from "./fixture/location"
 import { tmpdir } from "./fixture/tmpdir"
 import { it } from "./lib/effect"
@@ -18,7 +15,7 @@ const describeHg = Bun.which("hg") ? describe : describe.skip

 const provide = (directory: string) =>
  Effect.provide(
-    LayerNode.compile(LayerNode.group([Vcs.node, Bus.node]), [
+    LayerNode.compile(Vcs.node, [
      [
        Location.node,
        Layer.succeed(
@@ -40,11 +37,6 @@ const withTmp = <A, E, R>(f: (directory: string) => Effect.Effect<A, E, R>) =>
    (tmp) => Effect.promise(() => tmp[Symbol.asyncDispose]()),
  ).pipe(Effect.flatMap((tmp) => f(tmp.path)))

-const withHg = <A, E, R>(f: (directory: string) => Effect.Effect<A, E, R>) =>
-  withTmp((directory) =>
-    Effect.promise(() => hg(directory, "init")).pipe(Effect.andThen(f(directory).pipe(provide(directory)))),
-  )
-
 async function hg(directory: string, ...args: string[]) {
  await $`hg ${args}`.cwd(directory).env({ ...process.env, HGPLAIN: "1" }).quiet()
 }
@@ -56,9 +48,10 @@ async function commitAll(directory: string, message: string) {

 describeHg("Vcs mercurial", () => {
  it.live("reports modified, missing, and untracked files", () =>
-    withHg((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        yield* Effect.promise(async () => {
+          await hg(directory, "init")
          await fs.writeFile(path.join(directory, "keep.txt"), "one\ntwo\n")
          await fs.writeFile(path.join(directory, "gone.txt"), "bye\n")
          await commitAll(directory, "initial")
@@ -73,14 +66,15 @@ describeHg("Vcs mercurial", () => {
          { file: "keep.txt", additions: 1, deletions: 1, status: "modified" },
          { file: "new.txt", additions: 2, deletions: 0, status: "added" },
        ])
-      }),
+      }).pipe(provide(directory)),
    ),
  )

  it.live("diffs the working copy with synthesized untracked and missing patches", () =>
-    withHg((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        yield* Effect.promise(async () => {
+          await hg(directory, "init")
          await fs.writeFile(path.join(directory, "keep.txt"), "one\ntwo\n")
          await fs.writeFile(path.join(directory, "gone.txt"), "bye\n")
          await commitAll(directory, "initial")
@@ -102,47 +96,16 @@ describeHg("Vcs mercurial", () => {
        expect(diff[1].deletions).toBe(1)
        expect(diff[2].patch).toContain("+hello")
        expect(diff[2].additions).toBe(1)
-      }),
-    ),
-  )
-
-  it.live("caches branch info and publishes branch metadata changes", () =>
-    withHg((directory) =>
-      Effect.gen(function* () {
-        yield* Effect.promise(async () => {
-          await fs.writeFile(path.join(directory, "file.txt"), "one\n")
-          await commitAll(directory, "initial")
-        })
-        const vcs = yield* Vcs.Service
-        const bus = yield* Bus.Service
-        expect(yield* vcs.info()).toEqual({ branch: { current: "default", default: "default" } })
-
-        const updated = yield* bus.subscribe(VcsEvent.BranchUpdated).pipe(
-          Stream.take(1),
-          Stream.runHead,
-          Effect.forkScoped({ startImmediately: true }),
-        )
-        yield* Effect.promise(() => hg(directory, "branch", "-q", "feature"))
-        expect(yield* vcs.info()).toEqual({ branch: { current: "default", default: "default" } })
-
-        yield* bus.publish(FileSystem.Event.Changed, {
-          file: path.join(directory, ".hg", "branch"),
-          event: "change",
-        })
-        expect(yield* Fiber.join(updated)).toMatchObject({
-          _tag: "Some",
-          value: { location: { directory }, data: { branch: "feature" } },
-        })
-        expect(yield* vcs.info()).toEqual({ branch: { current: "feature", default: "default" } })
-      }),
+      }).pipe(provide(directory)),
    ),
  )

  it.live("respects the context option", () =>
-    withHg((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        const body = Array.from({ length: 20 }, (_, index) => `line-${index}`).join("\n") + "\n"
        yield* Effect.promise(async () => {
+          await hg(directory, "init")
          await fs.writeFile(path.join(directory, "file.txt"), body)
          await commitAll(directory, "initial")
          await fs.writeFile(path.join(directory, "file.txt"), body.replace("line-10", "changed"))
@@ -154,14 +117,15 @@ describeHg("Vcs mercurial", () => {
        const tight = yield* vcs.diff("working", { context: 1 })
        expect(tight[0].patch).toContain("line-9")
        expect(tight[0].patch).not.toContain("line-0")
-      }),
+      }).pipe(provide(directory)),
    ),
  )

  it.live("diffs before the first commit", () =>
-    withHg((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        yield* Effect.promise(async () => {
+          await hg(directory, "init")
          await fs.writeFile(path.join(directory, "tracked.txt"), "a\nb\n")
          await hg(directory, "add", "-q", "tracked.txt")
          await fs.writeFile(path.join(directory, "loose.txt"), "hello\n")
@@ -175,14 +139,15 @@ describeHg("Vcs mercurial", () => {
        expect(diff).toHaveLength(2)
        expect(diff[0].patch).toContain("+hello")
        expect(diff[1].patch).toContain("+a")
-      }),
+      }).pipe(provide(directory)),
    ),
  )

  it.live("diffs a named branch against the default branch", () =>
-    withHg((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        yield* Effect.promise(async () => {
+          await hg(directory, "init")
          await fs.writeFile(path.join(directory, "file.txt"), "one\n")
          await commitAll(directory, "initial")
        })
@@ -195,11 +160,12 @@ describeHg("Vcs mercurial", () => {
          await commitAll(directory, "feature change")
        })
        const diff = yield* vcs.diff("branch")
+        expect(yield* vcs.info()).toEqual({ branch: { current: "feature", default: "default" } })
        expect(diff.map((item) => ({ file: item.file, status: item.status }))).toEqual([
          { file: "file.txt", status: "modified" },
        ])
        expect(diff[0].patch).toContain("+two")
-      }),
+      }).pipe(provide(directory)),
    ),
  )
 })
@@ -2,21 +2,18 @@ import { $ } from "bun"
 import { describe, expect } from "bun:test"
 import fs from "fs/promises"
 import path from "path"
-import { Effect, Fiber, Layer, Stream } from "effect"
+import { Effect, Layer } from "effect"
 import { LayerNode } from "@opencode-ai/util/effect/layer-node"
-import { Bus } from "@opencode-ai/core/bus"
 import { Location } from "@opencode-ai/core/location"
 import { AbsolutePath } from "@opencode-ai/core/schema"
 import { Vcs } from "@opencode-ai/core/vcs"
-import { FileSystem } from "@opencode-ai/schema/filesystem"
-import { VcsEvent } from "@opencode-ai/schema/vcs-event"
 import { location } from "./fixture/location"
 import { tmpdir } from "./fixture/tmpdir"
 import { it } from "./lib/effect"

 const provide = (directory: string, input: { git?: boolean } = {}) =>
  Effect.provide(
-    LayerNode.compile(LayerNode.group([Vcs.node, Bus.node]), [
+    LayerNode.compile(Vcs.node, [
      [
        Location.node,
        Layer.succeed(
@@ -38,13 +35,6 @@ const withTmp = <A, E, R>(f: (directory: string) => Effect.Effect<A, E, R>) =>
    (tmp) => Effect.promise(() => tmp[Symbol.asyncDispose]()),
  ).pipe(Effect.flatMap((tmp) => f(tmp.path)))

-const withGit = <A, E, R>(f: (directory: string) => Effect.Effect<A, E, R>) =>
-  withTmp((directory) =>
-    Effect.promise(() => initRepo(directory)).pipe(
-      Effect.andThen(f(directory).pipe(provide(directory, { git: true }))),
-    ),
-  )
-
 async function initRepo(directory: string) {
  await $`git init -b main`.cwd(directory).quiet()
  await $`git config core.fsmonitor false`.cwd(directory).quiet()
@@ -72,9 +62,10 @@ describe("Vcs", () => {
  )

  it.live("reports modified, deleted, and untracked files", () =>
-    withGit((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        yield* Effect.promise(async () => {
+          await initRepo(directory)
          await fs.writeFile(path.join(directory, "keep.txt"), "one\ntwo\n")
          await fs.writeFile(path.join(directory, "gone.txt"), "bye\n")
          await commitAll(directory, "initial")
@@ -89,45 +80,15 @@ describe("Vcs", () => {
          { file: "keep.txt", additions: 1, deletions: 1, status: "modified" },
          { file: "new.txt", additions: 2, deletions: 0, status: "added" },
        ])
-      }),
-    ),
-  )
-
-  it.live("caches branch info and publishes HEAD changes", () =>
-    withGit((directory) =>
-      Effect.gen(function* () {
-        yield* Effect.promise(async () => {
-          await fs.writeFile(path.join(directory, "file.txt"), "one\n")
-          await commitAll(directory, "initial")
-        })
-        const vcs = yield* Vcs.Service
-        const bus = yield* Bus.Service
-        expect(yield* vcs.info()).toEqual({ branch: { current: "main", default: undefined } })
-
-        const updated = yield* bus.subscribe(VcsEvent.BranchUpdated).pipe(
-          Stream.take(1),
-          Stream.runHead,
-          Effect.forkScoped({ startImmediately: true }),
-        )
-        yield* Effect.promise(() => $`git checkout -q -b feature`.cwd(directory).quiet())
-
-        yield* bus.publish(FileSystem.Event.Changed, { file: path.join(directory, "HEAD"), event: "change" })
-        expect(yield* vcs.info()).toEqual({ branch: { current: "main", default: undefined } })
-
-        yield* bus.publish(FileSystem.Event.Changed, { file: path.join(directory, ".git", "HEAD"), event: "change" })
-        expect(yield* Fiber.join(updated)).toMatchObject({
-          _tag: "Some",
-          value: { location: { directory }, data: { branch: "feature" } },
-        })
-        expect(yield* vcs.info()).toEqual({ branch: { current: "feature", default: "main" } })
-      }),
+      }).pipe(provide(directory, { git: true })),
    ),
  )

  it.live("diffs the working copy against HEAD with patches", () =>
-    withGit((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        yield* Effect.promise(async () => {
+          await initRepo(directory)
          await fs.writeFile(path.join(directory, "keep.txt"), "one\ntwo\n")
          await commitAll(directory, "initial")
          await fs.writeFile(path.join(directory, "keep.txt"), "one\nthree\n")
@@ -145,15 +106,16 @@ describe("Vcs", () => {
        expect(diff[0].deletions).toBe(1)
        expect(diff[1].patch).toContain("+hello")
        expect(diff[1].additions).toBe(1)
-      }),
+      }).pipe(provide(directory, { git: true })),
    ),
  )

  it.live("respects the context option", () =>
-    withGit((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        const body = Array.from({ length: 20 }, (_, index) => `line-${index}`).join("\n") + "\n"
        yield* Effect.promise(async () => {
+          await initRepo(directory)
          await fs.writeFile(path.join(directory, "file.txt"), body)
          await commitAll(directory, "initial")
          await fs.writeFile(path.join(directory, "file.txt"), body.replace("line-10", "changed"))
@@ -165,14 +127,15 @@ describe("Vcs", () => {
        const tight = yield* vcs.diff("working", { context: 1 })
        expect(tight[0].patch).toContain("line-9")
        expect(tight[0].patch).not.toContain("line-0")
-      }),
+      }).pipe(provide(directory, { git: true })),
    ),
  )

  it.live("diffs before the first commit", () =>
-    withGit((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        yield* Effect.promise(async () => {
+          await initRepo(directory)
          await fs.writeFile(path.join(directory, "new.txt"), "hello\n")
        })
        const vcs = yield* Vcs.Service
@@ -180,14 +143,15 @@ describe("Vcs", () => {
        const diff = yield* vcs.diff("working")
        expect(diff).toHaveLength(1)
        expect(diff[0].patch).toContain("+hello")
-      }),
+      }).pipe(provide(directory, { git: true })),
    ),
  )

  it.live("diffs a feature branch against the default branch", () =>
-    withGit((directory) =>
+    withTmp((directory) =>
      Effect.gen(function* () {
        yield* Effect.promise(async () => {
+          await initRepo(directory)
          await fs.writeFile(path.join(directory, "file.txt"), "one\n")
          await commitAll(directory, "initial")
        })
@@ -200,11 +164,12 @@ describe("Vcs", () => {
          await commitAll(directory, "feature change")
        })
        const diff = yield* vcs.diff("branch")
+        expect(yield* vcs.info()).toEqual({ branch: { current: "feature", default: "main" } })
        expect(diff.map((item) => ({ file: item.file, status: item.status }))).toEqual([
          { file: "file.txt", status: "modified" },
        ])
        expect(diff[0].patch).toContain("+two")
-      }),
+      }).pipe(provide(directory, { git: true })),
    ),
  )
 })
@@ -1,9 +1,10 @@
 import type { SessionApi } from "@opencode-ai/client/effect/api"
 import type { Message, SystemPart } from "@opencode-ai/ai"
+import type { HttpRequest } from "@opencode-ai/ai/route"
 import type { Agent } from "@opencode-ai/schema/agent"
 import type { Model } from "@opencode-ai/schema/model"
 import type { Session } from "@opencode-ai/schema/session"
-import type { Effect, JsonSchema } from "effect"
+import type { JsonSchema } from "effect"
 import type { Hooks } from "./registration.js"

 export interface SessionContext {
@@ -15,23 +16,15 @@ export interface SessionContext {
  tools: Record<string, { description: string; input: JsonSchema.JsonSchema }>
 }

-export interface SessionHttp {
+export interface SessionRequest extends HttpRequest {
  readonly sessionID: Session.ID
  readonly agent: Agent.ID
  readonly model: Model.Ref
-  readonly use: (middleware: SessionHttpMiddleware) => Effect.Effect<void>
 }

-export type SessionHttpHandler = (request: Request) => Effect.Effect<Response, Error>
-
-export type SessionHttpMiddleware = (
-  request: Request,
-  next: SessionHttpHandler,
-) => Effect.Effect<Response, Error>
-
 export interface SessionHooks {
  readonly context: SessionContext
-  readonly http: SessionHttp
+  readonly request: SessionRequest
 }

 export type SessionDomain = Pick<
@@ -1,5 +1,6 @@
 import type { SessionApi } from "@opencode-ai/client/promise/api"
 import type { Message, SystemPart } from "@opencode-ai/ai"
+import type { HttpRequest } from "@opencode-ai/ai/route"
 import type { Agent } from "@opencode-ai/schema/agent"
 import type { Model } from "@opencode-ai/schema/model"
 import type { Session } from "@opencode-ai/schema/session"
@@ -15,23 +16,15 @@ export interface SessionContext {
  tools: Record<string, { description: string; input: JsonSchema.JsonSchema }>
 }

-export interface SessionHttp {
+export interface SessionRequest extends HttpRequest {
  readonly sessionID: Session.ID
  readonly agent: Agent.ID
  readonly model: Model.Ref
-  readonly use: (middleware: SessionHttpMiddleware) => void
 }

-export type SessionHttpHandler = (request: Request) => Promise<Response>
-
-export type SessionHttpMiddleware = (
-  request: Request,
-  next: SessionHttpHandler,
-) => Promise<Response> | Response
-
 export interface SessionHooks {
  readonly context: SessionContext
-  readonly http: SessionHttp
+  readonly request: SessionRequest
 }

 export type SessionDomain = Pick<
@@ -19,7 +19,6 @@ import type {
  SessionPendingInfo,
  ShellInfo,
  SkillInfo,
-  VcsInfo,
 } from "@opencode-ai/client"
 import type { ResolvedTheme } from "@opencode-ai/theme/tui"
 import type { CliRenderer, KeyEvent, Renderable } from "@opentui/core"
@@ -114,11 +113,6 @@ export interface Data {
    default(): LocationRef
    sync(location?: LocationRef): Promise<void>
    invalidate(location?: LocationRef): void
-    readonly vcs: {
-      info(location?: LocationRef): VcsInfo | undefined
-      sync(location?: LocationRef): Promise<void>
-      invalidate(location?: LocationRef): void
-    }
    readonly agent: LocationCollection<AgentInfo>
    readonly command: LocationCollection<CommandInfo>
    readonly integration: LocationCollection<IntegrationInfo>
@@ -327,7 +327,10 @@ export function Prompt(props: PromptProps) {
    if (!session) return
    const agent = session.agent && local.agent.list().find((agent) => agent.id === session.agent)
    if (agent && !args.agent) local.agent.set(agent.id)
-    if (!local.model.hydrate(session.model)) return
+    if (session.model) {
+      local.model.set({ providerID: session.model.providerID, modelID: session.model.id })
+      local.model.variant.set(session.model.variant)
+    }
    syncedSessionID = sessionID
  })

@@ -1326,17 +1329,12 @@ export function Prompt(props: PromptProps) {
  const locationLabel = createMemo(() => {
    if (!props.sessionID) {
      // No session yet: show where the next session will be created.
-      const location = currentLocation.ref ?? data.location.default()
-      const directory = abbreviateHome(location.directory, paths.home)
-      const branch = data.location.vcs.info(location)?.branch.current
-      return branch ? `${directory}:${branch}` : directory
+      const directory = currentLocation.ref?.directory ?? data.location.default().directory
+      return abbreviateHome(directory, paths.home)
    }
    if (status() !== "idle") return
-    const location = data.session.get(props.sessionID)?.location
-    if (!location) return
-    const directory = abbreviateHome(location.directory, paths.home)
-    const branch = data.location.vcs.info(location)?.branch.current
-    return branch ? `${directory}:${branch}` : directory
+    const directory = data.session.get(props.sessionID)?.location.directory
+    return directory ? abbreviateHome(directory, paths.home) : undefined
  })

  const spinnerDef = createMemo(() => {
@@ -15,7 +15,7 @@ import {
  type SessionTab,
  type SessionTabUnread,
 } from "../context/session-tabs-model"
-import { createAnimatable, spring } from "../ui/animation"
+import { createAnimatable, spring, tween } from "../ui/animation"
 import { Locale } from "../util/locale"
 import { stringWidth } from "../util/string-width"
 import { TabPulse, unreadGlowIntensity } from "./tab-pulse"
@@ -554,6 +554,21 @@ function HorizontalSessionTabs(props: { controller?: SessionTabsController; anim
          const glowColor = () => feedbackColor() ?? accent()
          const glows = () => !selected() && (status().attention || (!status().busy && status().unread !== undefined))
          const title = () => tab.title ?? "Untitled session"
+          const [outgoingTitle, setOutgoingTitle] = createSignal<string>()
+          const wipe = createAnimatable({ front: 1 }, { enabled: animations, transition: tween({ duration: 0.3 }) })
+          createEffect((previous: string) => {
+            const next = title()
+            if (next === previous) return next
+            if (previous === NEW_SESSION_TAB_TITLE) {
+              setOutgoingTitle(undefined)
+              wipe.jump({ front: 1 })
+              return next
+            }
+            setOutgoingTitle(previous)
+            wipe.jump({ front: 0 })
+            wipe.animate({ front: 1 })
+            return next
+          }, title())
          const tabNumber = createMemo(() => items().findIndex((item) => item.sessionID === tab.sessionID) + 1)
          // The number cell keeps one trailing space, even for double-digit tabs.
          const numberWidth = () => String(tabNumber()).length + 1
@@ -562,6 +577,20 @@ function HorizontalSessionTabs(props: { controller?: SessionTabsController; anim
            Math.max(1, width() - 1 - numberWidth() - (hovered() === tab.sessionID ? 2 : 0))
          const visibleTitle = createMemo(() => Locale.takeWidth(title(), availableTitleWidth()))
          const visibleTitleParts = createMemo(() => Locale.graphemes(visibleTitle()))
+          const outgoingTitleParts = createMemo(() => {
+            const outgoing = outgoingTitle()
+            if (outgoing === undefined) return undefined
+            return Locale.graphemes(Locale.takeWidth(outgoing, availableTitleWidth()))
+          })
+          // A new title wipes in from the left over the previous one.
+          const displayedParts = createMemo(() => {
+            const front = wipe.value().front
+            const parts = visibleTitleParts()
+            const previous = outgoingTitleParts()
+            if (previous === undefined || front >= 1) return parts
+            const cut = Math.round(front * Math.max(parts.length, previous.length))
+            return [...parts.slice(0, cut), ...previous.slice(cut)]
+          })
          const titleFades = createMemo(
            () => stringWidth(title()) >= availableTitleWidth() && availableTitleWidth() > FADE_WIDTH,
          )
@@ -574,8 +603,8 @@ function HorizontalSessionTabs(props: { controller?: SessionTabsController; anim
          const characterColor = (index: number) => {
            const base = foreground()
            const color = glows() ? glowTextColor(base, glowColor(), 1 + numberWidth() + index, width()) : base
-            if (!titleFades() || index < visibleTitleParts().length - FADE_WIDTH) return color
-            const position = index - (visibleTitleParts().length - FADE_WIDTH)
+            if (!titleFades() || index < displayedParts().length - FADE_WIDTH) return color
+            const position = index - (displayedParts().length - FADE_WIDTH)
            return tint(color, background(), 0.2 + 0.72 * (position / Math.max(1, FADE_WIDTH - 1)))
          }
          // The running sweep's level under the number cell, reported by the pulse renderable.
@@ -648,8 +677,8 @@ function HorizontalSessionTabs(props: { controller?: SessionTabsController; anim
                  selectable={false}
                  attributes={bold()}
                >
-                  <Show when={glows() || titleFades()} fallback={visibleTitle()}>
-                    <For each={visibleTitleParts()}>
+                  <Show when={glows() || titleFades()} fallback={displayedParts().join("")}>
+                    <For each={displayedParts()}>
                      {(character, index) => <span style={{ fg: characterColor(index()) }}>{character}</span>}
                    </For>
                  </Show>
@@ -27,7 +27,6 @@ import type {
  SessionPendingInfo,
  ShellInfo,
  SkillInfo,
-  VcsInfo,
  OpenCodeEvent,
  WebSearchProvider,
 } from "@opencode-ai/client"
@@ -50,7 +49,6 @@ type ShellWithLocation = ShellInfo & { readonly location: LocationRef }

 type LocationData = {
  info?: LocationGetOutput
-  vcs?: VcsInfo
  agent?: AgentInfo[]
  command?: CommandInfo[]
  integration?: IntegrationInfo[]
@@ -341,17 +339,6 @@ export const { use: useData, provider: DataProvider } = createSimpleContext({
          result.location.skill.invalidate(event.location)
          void result.location.skill.sync(event.location)
          break
-        case "vcs.branch.updated":
-          setStore("location", locationKey(event.location ?? defaultLocation()), (data) => ({
-            ...data,
-            vcs: {
-              branch: {
-                ...data?.vcs?.branch,
-                current: event.data.branch,
-              },
-            },
-          }))
-          break
        case "session.agent.selected":
          if (store.session.info[event.data.sessionID])
            setStore("session", "info", event.data.sessionID, "agent", event.data.agent)
@@ -1165,7 +1152,6 @@ export const { use: useData, provider: DataProvider } = createSimpleContext({
          })
          const location = ref ?? defaultLocation()
          await Promise.all([
-            result.location.vcs.sync(location),
            result.location.agent.sync(location),
            result.location.command.sync(location),
            result.location.integration.sync(location),
@@ -1182,7 +1168,6 @@ export const { use: useData, provider: DataProvider } = createSimpleContext({
        invalidate(ref?: LocationRef) {
          const location = ref ?? defaultLocation()
          sync.invalidate(`location:${locationKey(location)}`)
-          result.location.vcs.invalidate(location)
          result.location.agent.invalidate(location)
          result.location.command.invalidate(location)
          result.location.integration.invalidate(location)
@@ -1195,22 +1180,6 @@ export const { use: useData, provider: DataProvider } = createSimpleContext({
          result.shell.invalidate(location)
          result.session.form.invalidate("global", location)
        },
-        vcs: {
-          info(location?: LocationRef) {
-            return store.location[locationKey(location ?? defaultLocation())]?.vcs
-          },
-          sync(ref?: LocationRef) {
-            const location = ref ?? defaultLocation()
-            return sync.run(`location.vcs:${locationKey(location)}`, async () => {
-              const response = await client.api.vcs.get({ location: locationQuery(location) })
-              const key = locationKey(response.location)
-              setStore("location", key, { ...store.location[key], vcs: response.data })
-            })
-          },
-          invalidate(ref?: LocationRef) {
-            sync.invalidate(`location.vcs:${locationKey(ref ?? defaultLocation())}`)
-          },
-        },
        agent: {
          list(location?: LocationRef) {
            return store.location[locationKey(location ?? defaultLocation())]?.agent
@@ -1408,7 +1377,6 @@ export const { use: useData, provider: DataProvider } = createSimpleContext({
              setStore("location", key, { ...store.location[key], info: location })
            })
            .catch((error) => console.error("Failed to preload location", error))
-          void result.location.vcs.sync().catch((error) => console.error("Failed to preload VCS info", error))
          void result.project.sync().catch((error) => console.error("Failed to preload projects", error))
          return
        }
@@ -6,6 +6,7 @@ import { useEvent } from "./event"
 import path from "path"
 import { useTuiPaths } from "./runtime"
 import { useArgs } from "./args"
+import { useClient } from "./client"
 import { RGBA } from "@opentui/core"
 import { readJson, writeJsonAtomic } from "../util/persistence"
 import {
@@ -47,6 +48,7 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
  name: "Local",
  init: () => {
    const data = useData()
+    const client = useClient()
    const toast = useToast()
    const theme = useTheme()
    const { mode } = useThemes()
@@ -208,47 +210,6 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
        )
      })

-      function select(model: ModelPreferenceModel, options?: { recent?: boolean }) {
-        batch(() => {
-          if (!isModelValid(model)) return
-          const a = agent.current()
-          if (!a) return
-          setModelStore("model", a.id, model)
-          if (!options?.recent) return
-          setModelStore("recent", recentModels(model, modelStore.recent))
-          save()
-        })
-      }
-
-      function selectVariant(value: string | undefined) {
-        const model = currentModel()
-        if (!model) return
-        const key = modelPreferenceKey(model)
-        const variant = normalizeModelVariant(value)
-        if (modelStore.variant[key] === variant) return
-        setModelStore("variant", key, variant)
-        save()
-      }
-
-      function matches(model?: { providerID: string; id: string }) {
-        if (!modelStore.ready) return false
-        const current = currentModel()
-        if (!current) return false
-        if (!model) return true
-        return current.providerID === model.providerID && current.modelID === model.id
-      }
-
-      function hydrate(model?: { providerID: string; id: string; variant?: string }) {
-        if (!modelStore.ready) return false
-        if (!model) return true
-        if (data.location.model.list() === undefined) return false
-        const selected = { providerID: model.providerID, modelID: model.id }
-        if (!isModelValid(selected)) return false
-        select(selected)
-        selectVariant(model.variant)
-        return matches(model)
-      }
-
      return {
        current: currentModel,
        get ready() {
@@ -260,8 +221,6 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
        favorite() {
          return modelStore.favorite
        },
-        hydrate,
-        matches,
        parsed: createMemo(() => {
          const value = currentModel()
          if (!value) {
@@ -326,7 +285,18 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
          setModelStore("recent", recentModels(next, modelStore.recent))
          save()
        },
-        set: select,
+        set(model: { providerID: string; modelID: string }, options?: { recent?: boolean }) {
+          batch(() => {
+            if (!isModelValid(model)) return
+            const a = agent.current()
+            if (!a) return
+            setModelStore("model", a.id, model)
+            if (options?.recent) {
+              setModelStore("recent", recentModels(model, modelStore.recent))
+              save()
+            }
+          })
+        },
        toggleFavorite(model: { providerID: string; modelID: string }) {
          batch(() => {
            if (!isModelValid(model)) return
@@ -363,7 +333,10 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
            return info?.variants?.map((variant) => variant.id) ?? []
          },
          set(value: string | undefined) {
-            selectVariant(value)
+            const m = currentModel()
+            if (!m) return
+            setModelStore("variant", modelPreferenceKey(m), normalizeModelVariant(value))
+            save()
          },
          cycle() {
            const variants = this.list()
@@ -3,12 +3,9 @@ import { createMemo, Show } from "solid-js"
 import { FilePath } from "../../ui/file-path"

 function View(props: { context: Plugin.Context }) {
-  const directory = createMemo(() => {
-    if (!props.context.location) return undefined
-    const value = props.context.ui.format.path(props.context.location.directory)
-    const branch = props.context.data.location.vcs.info(props.context.location)?.branch.current
-    return branch ? `${value}:${branch}` : value
-  })
+  const directory = createMemo(() =>
+    props.context.location ? props.context.ui.format.path(props.context.location.directory) : undefined,
+  )
  return (
    <Show when={directory()}>
      {(value) => <FilePath value={value()} maxWidth={38} fg={props.context.theme.text.subdued} />}
@@ -360,7 +360,7 @@ export function Session() {
  createEffect(() => {
    const current = prompt()
    if (sent || !current || !synced() || !local.model.ready) return
-    if (!local.agent.current() || !local.model.matches(session()?.model)) return
+    if (!local.agent.current() || !local.model.current()) return
    if (!args.prompt || route.prompt?.text !== args.prompt || current.current.text !== args.prompt) return
    sent = true
    current.submit()
@@ -226,110 +226,79 @@ test("session title generated while an untitled session is loading remains visib
  }
 })

-for (const scenario of [
-  { name: "session startup prompt is submitted exactly once", delayed: false },
-  { name: "session model hydration retries after the model catalog loads", delayed: true },
-]) {
-  test(scenario.name, async () => {
-    const setup = await createTestRenderer({ width: 80, height: 24, useThread: false })
-    const core = await import("@opentui/core")
-    mock.module("@opentui/core", () => ({ ...core, createCliRenderer: async () => setup.renderer }))
-    const events = createEventStream()
-    const cwd = process.cwd()
-    const location = { directory: cwd, project: { id: "project", directory: cwd } }
-    const selected = scenario.delayed ? "selected" : "model"
-    const session = {
-      id: "dummy",
-      title: "Demo session",
-      projectID: "project",
-      location: { directory: cwd },
-      agent: "build",
-      model: { providerID: "provider", id: selected },
-      cost: 0,
-      tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
-      time: { created: 0, updated: 0 },
+test("session startup prompt is submitted exactly once", async () => {
+  const setup = await createTestRenderer({ width: 80, height: 24, useThread: false })
+  const core = await import("@opentui/core")
+  mock.module("@opentui/core", () => ({ ...core, createCliRenderer: async () => setup.renderer }))
+  const events = createEventStream()
+  const cwd = process.cwd()
+  const location = { directory: cwd, project: { id: "project", directory: cwd } }
+  const session = {
+    id: "dummy",
+    title: "Demo session",
+    projectID: "project",
+    location: { directory: cwd },
+    agent: "build",
+    model: { providerID: "provider", id: "model" },
+    cost: 0,
+    tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+    time: { created: 0, updated: 0 },
+  }
+  const bodies: unknown[] = []
+  const promptSubmitted = Promise.withResolvers<void>()
+  const calls = createFetch(async (url, request) => {
+    if (url.pathname === "/api/location") return json(location)
+    if (url.pathname === "/api/session") return json({ data: [session], cursor: {} })
+    if (url.pathname === "/api/session/dummy") return json({ data: session })
+    if (url.pathname === "/api/session/dummy/message") return json({ data: [], cursor: {} })
+    if (url.pathname === "/api/session/dummy/pending") return json({ data: [] })
+    if (url.pathname === "/api/session/dummy/permission") return json({ data: [] })
+    if (url.pathname === "/api/agent")
+      return json({
+        location,
+        data: [{ id: "build", mode: "primary", hidden: false, permissions: [] }],
+      })
+    if (url.pathname === "/api/model")
+      return json({
+        location,
+        data: [{ id: "model", providerID: "provider", name: "Model", variants: [] }],
+      })
+    if (url.pathname === "/api/session/dummy/prompt") {
+      bodies.push(await request.json())
+      promptSubmitted.resolve()
+      return json({ data: {} })
    }
-    const sessionRequested = Promise.withResolvers<void>()
-    const modelRequested = Promise.withResolvers<void>()
-    const releaseModels = Promise.withResolvers<void>()
-    const promptSubmitted = Promise.withResolvers<void>()
-    const bodies: unknown[] = []
-    const selections: unknown[] = []
-    const calls = createFetch(async (url, request) => {
-      if (url.pathname === "/api/location") return json(location)
-      if (url.pathname === "/api/session") return json({ data: [session], cursor: {} })
-      if (url.pathname === "/api/session/dummy") {
-        sessionRequested.resolve()
-        return json({ data: session })
-      }
-      if (url.pathname === "/api/session/dummy/message") return json({ data: [], cursor: {} })
-      if (url.pathname === "/api/session/dummy/pending") return json({ data: [] })
-      if (url.pathname === "/api/session/dummy/permission") return json({ data: [] })
-      if (url.pathname === "/api/agent")
-        return json({
-          location,
-          data: [{ id: "build", mode: "primary", hidden: false, permissions: [] }],
-        })
-      if (url.pathname === "/api/model") {
-        modelRequested.resolve()
-        if (scenario.delayed) await releaseModels.promise
-        return json({
-          location,
-          data: [
-            ...(scenario.delayed ? [{ id: "fallback", providerID: "provider", name: "Fallback", variants: [] }] : []),
-            { id: selected, providerID: "provider", name: "Selected", variants: [] },
-          ],
-        })
-      }
-      if (url.pathname === "/api/session/dummy/model") {
-        selections.push(await request.json())
-        return new Response(null, { status: 204 })
-      }
-      if (url.pathname === "/api/session/dummy/prompt") {
-        bodies.push(await request.json())
-        promptSubmitted.resolve()
-        return json({ data: {} })
-      }
-    }, events)
-    const server = Bun.serve({ port: 0, fetch: (request) => calls.fetch(request) })
+  }, events)
+  const server = Bun.serve({ port: 0, fetch: (request) => calls.fetch(request) })

-    try {
-      const { run } = await import("../src/app")
-      const task = Effect.runPromise(
-        run({
-          app: { name: "test", version: "test", channel: "test" },
-          server: { endpoint: { url: server.url.toString() } },
-          config: { get: async () => ({}), update: async () => ({}) },
-          packages: { resolve: async () => undefined },
-          args: { sessionID: "dummy", prompt: "RESUME_READY" },
-          log: () => {},
-        }).pipe(Effect.provide(AppNodeBuilder.build(Global.node)), Effect.provide(FileSystem.layerNoop({}))),
-      )
+  try {
+    const { run } = await import("../src/app")
+    const task = Effect.runPromise(
+      run({
+        app: { name: "test", version: "test", channel: "test" },
+        server: { endpoint: { url: server.url.toString() } },
+        config: { get: async () => ({}), update: async () => ({}) },
+        packages: { resolve: async () => undefined },
+        args: { sessionID: "dummy", prompt: "RESUME_READY" },
+        log: () => {},
+      }).pipe(Effect.provide(AppNodeBuilder.build(Global.node)), Effect.provide(FileSystem.layerNoop({}))),
+    )

-      if (scenario.delayed) {
-        await Promise.all([sessionRequested.promise, modelRequested.promise])
-        await Bun.sleep(20)
-        expect(bodies).toEqual([])
-        releaseModels.resolve()
-      }
-      await Promise.race([
-        promptSubmitted.promise,
-        Bun.sleep(2000).then(() => {
-          throw new Error("startup prompt was not submitted")
-        }),
-      ])
-      await Bun.sleep(20)
-      setup.renderer.destroy()
-      await task
+    await Promise.race([
+      promptSubmitted.promise,
+      Bun.sleep(2000).then(() => {
+        throw new Error("startup prompt was not submitted")
+      }),
+    ])
+    await Bun.sleep(20)
+    setup.renderer.destroy()
+    await task

-      expect(bodies).toHaveLength(1)
-      expect(bodies[0]).toMatchObject({ text: "RESUME_READY" })
-      expect(selections).toEqual([])
-    } finally {
-      releaseModels.resolve()
-      if (!setup.renderer.isDestroyed) setup.renderer.destroy()
-      await server.stop()
-      mock.restore()
-    }
-  })
-}
+    expect(bodies).toHaveLength(1)
+    expect(bodies[0]).toMatchObject({ text: "RESUME_READY" })
+  } finally {
+    if (!setup.renderer.isDestroyed) setup.renderer.destroy()
+    await server.stop()
+    mock.restore()
+  }
+})
@@ -106,49 +106,6 @@ test("does not preload session summaries into the data context", async () => {
  }
 })

-test("syncs VCS info and applies branch updates", async () => {
-  const events = createEventStream()
-  const calls = createFetch((url) => {
-    if (url.pathname !== "/api/vcs") return undefined
-    return json({
-      location: { directory, project: { id: "proj_test", directory: worktree, canonical: worktree } },
-      data: { branch: { current: "main", default: "main" } },
-    })
-  }, events)
-  let data!: ReturnType<typeof useData>
-
-  function Probe() {
-    data = useData()
-    return <box />
-  }
-
-  const app = await testRender(() => (
-    <TestTuiContexts>
-      <ClientProvider api={createApi(calls.fetch)}>
-        <ProjectProvider>
-          <DataProvider>
-            <Probe />
-          </DataProvider>
-        </ProjectProvider>
-      </ClientProvider>
-    </TestTuiContexts>
-  ))
-
-  try {
-    await wait(() => data.location.vcs.info()?.branch.current === "main")
-    emitEvent(events, {
-      id: "evt_vcs_branch",
-      created: Date.now(),
-      type: "vcs.branch.updated",
-      data: { branch: "feature" },
-    })
-    await wait(() => data.location.vcs.info()?.branch.current === "feature")
-    expect(data.location.vcs.info()?.branch).toEqual({ current: "feature", default: "main" })
-  } finally {
-    app.renderer.destroy()
-  }
-})
-
 test("proactively syncs project metadata newest first", async () => {
  const events = createEventStream()
  const calls = createFetch((url) => {
@@ -95,11 +95,6 @@ export function createFetch(override?: FetchHandler, events?: ReturnType<typeof
    if (url.pathname === "/path") return json({ home: "", state: "", config: "", worktree, directory })
    if (url.pathname === "/api/location")
      return json({ directory, project: { id: "proj_test", directory: worktree, canonical: worktree } })
-    if (url.pathname === "/api/vcs")
-      return json({
-        location: { directory, project: { id: "proj_test", directory: worktree, canonical: worktree } },
-        data: { branch: { current: "main", default: "main" } },
-      })
    if (url.pathname === "/api/fs/list")
      return json({ location: { directory, project: { id: "proj_test", directory: worktree, canonical: worktree } }, data: [] })
    if (url.pathname === "/api/project/current") return json({ id: "proj_test", directory: worktree })
@@ -20,6 +20,7 @@
    "@shikijs/transformers": "3.20.0",
    "@solid-primitives/resize-observer": "2.1.5",
    "@types/luxon": "catalog:",
+    "ai": "catalog:",
    "astro": "5.7.13",
    "diff": "catalog:",
    "js-base64": "3.7.7",
@@ -239,29 +239,16 @@ without restarting OpenCode.

 ### Runtime hooks

-Runtime hooks intercept live operations:
+Runtime hooks intercept live operations. Their event objects expose specific
+mutable fields:

 | Hook                                        | Mutable fields                                                                 |
 | ------------------------------------------- | ------------------------------------------------------------------------------ |
 | `ctx.aisdk.hook("sdk", callback)`           | `sdk`, after inspecting `model`, `package`, and `options`                      |
 | `ctx.aisdk.hook("language", callback)`      | `language`, after inspecting `model`, `sdk`, and `options`                     |
-| `ctx.session.hook("context", callback)`     | `system`, `messages`, and the `tools` record immediately before model dispatch |
-| `ctx.session.hook("http", callback)`       | `use`, registering request and response handling                               |
+| `ctx.session.hook("request", callback)`     | `system`, `messages`, and the `tools` record immediately before model dispatch |
 | `ctx.tool.hook("execute.before", callback)` | `input`, before the selected tool executes                                     |
-| `ctx.tool.hook("execute.after", callback)`  | Terminal `result` on success or `error` on failure                             |
-
-HTTP hooks can modify requests, inspect responses, retry, or return a
-response without calling the provider. It applies to native models; AI SDK
-models do not currently pass through this hook.
-
-```ts
-await ctx.session.hook("http", (event) => {
-  event.use((request, next) => {
-    request.headers.set("x-session-id", event.sessionID)
-    return next(request)
-  })
-})
-```
+| `ctx.tool.hook("execute.after", callback)`  | Terminal `result` on success or `error` on failure                            |

 For example, remove a tool from selected model requests and normalize another
 tool's input:
@@ -272,7 +259,7 @@ import { Plugin } from "@opencode-ai/plugin"
 export default Plugin.define({
  id: "acme.guards",
  setup: async (ctx) => {
-    await ctx.session.hook("context", (event) => {
+    await ctx.session.hook("request", (event) => {
      delete event.tools.write
    })

@@ -0,0 +1,174 @@
+diff --git a/dist/index.d.mts b/dist/index.d.mts
+index 266c5ffdd9ee74ff95908ce90858ee4369d4e4ae..990ef4195bc67b6d25f249e1c81cf51710390f9a 100644
+--- a/dist/index.d.mts
+++ b/dist/index.d.mts
+@@ -78,6 +78,7 @@ declare const xaiLanguageModelResponsesOptions: z.ZodObject<{
+     topLogprobs: z.ZodOptional<z.ZodNumber>;
+     store: z.ZodOptional<z.ZodBoolean>;
+     previousResponseId: z.ZodOptional<z.ZodString>;
+    promptCacheKey: z.ZodOptional<z.ZodString>;
+     include: z.ZodOptional<z.ZodNullable<z.ZodArray<z.ZodEnum<{
+         "file_search_call.results": "file_search_call.results";
+     }>>>>;
+diff --git a/dist/index.d.ts b/dist/index.d.ts
+index 266c5ffdd9ee74ff95908ce90858ee4369d4e4ae..990ef4195bc67b6d25f249e1c81cf51710390f9a 100644
+--- a/dist/index.d.ts
+++ b/dist/index.d.ts
+@@ -78,6 +78,7 @@ declare const xaiLanguageModelResponsesOptions: z.ZodObject<{
+     topLogprobs: z.ZodOptional<z.ZodNumber>;
+     store: z.ZodOptional<z.ZodBoolean>;
+     previousResponseId: z.ZodOptional<z.ZodString>;
+    promptCacheKey: z.ZodOptional<z.ZodString>;
+     include: z.ZodOptional<z.ZodNullable<z.ZodArray<z.ZodEnum<{
+         "file_search_call.results": "file_search_call.results";
+     }>>>>;
+diff --git a/dist/index.js b/dist/index.js
+index 717b74538f5c8f0d6ab1475ebb2a84a47ccd3950..dd7dbeb3bc307e0d355f4bb4939d06cc8eae7528 100644
+--- a/dist/index.js
+++ b/dist/index.js
+@@ -1119,6 +1119,14 @@ async function convertToXaiResponsesInput({
+                   type: "input_file",
+                   file_url: block.data.toString()
+                 });
+              } else if (block.mediaType === "application/pdf") {
+                contentParts.push({
+                  type: "input_file",
+                  ...typeof block.data === "string" && block.data.startsWith("file-") ? { file_id: block.data } : {
+                    filename: block.filename ?? "file",
+                    file_data: `data:application/pdf;base64,${(0, import_provider_utils5.convertToBase64)(block.data)}`
+                  }
+                });
+               } else {
+                 throw new import_provider4.UnsupportedFunctionalityError({
+                   functionality: `file part media type ${block.mediaType} as inline data (xAI Responses requires a URL or a Files API reference for non-image files)`
+@@ -1760,6 +1768,10 @@ var xaiLanguageModelResponsesOptions = import_v47.z.object({
+    * The ID of the previous response from the model.
+    */
+   previousResponseId: import_v47.z.string().optional(),
+  /**
+   * A stable key used by xAI to improve prompt cache routing.
+   */
+  promptCacheKey: import_v47.z.string().optional(),
+   /**
+    * Specify additional output data to include in the model response.
+    * Example values: 'file_search_call.results'.
+@@ -2165,6 +2177,9 @@ var XaiResponsesLanguageModel = class {
+       },
+       ...options.previousResponseId != null && {
+         previous_response_id: options.previousResponseId
+      },
+      ...options.promptCacheKey != null && {
+        prompt_cache_key: options.promptCacheKey
+       }
+     };
+     if (xaiTools2 && xaiTools2.length > 0) {
+diff --git a/dist/index.mjs b/dist/index.mjs
+index a26af109585fc2bd3053b320142aa869c06d36f4..774adaf971b648544317a4fc65d0c56e488d4fc7 100644
+--- a/dist/index.mjs
+++ b/dist/index.mjs
+@@ -1122,6 +1122,14 @@ async function convertToXaiResponsesInput({
+                   type: "input_file",
+                   file_url: block.data.toString()
+                 });
+              } else if (block.mediaType === "application/pdf") {
+                contentParts.push({
+                  type: "input_file",
+                  ...typeof block.data === "string" && block.data.startsWith("file-") ? { file_id: block.data } : {
+                    filename: block.filename ?? "file",
+                    file_data: `data:application/pdf;base64,${convertToBase642(block.data)}`
+                  }
+                });
+               } else {
+                 throw new UnsupportedFunctionalityError3({
+                   functionality: `file part media type ${block.mediaType} as inline data (xAI Responses requires a URL or a Files API reference for non-image files)`
+@@ -1763,6 +1771,10 @@ var xaiLanguageModelResponsesOptions = z7.object({
+    * The ID of the previous response from the model.
+    */
+   previousResponseId: z7.string().optional(),
+  /**
+   * A stable key used by xAI to improve prompt cache routing.
+   */
+  promptCacheKey: z7.string().optional(),
+   /**
+    * Specify additional output data to include in the model response.
+    * Example values: 'file_search_call.results'.
+@@ -2186,6 +2198,9 @@ var XaiResponsesLanguageModel = class {
+       },
+       ...options.previousResponseId != null && {
+         previous_response_id: options.previousResponseId
+      },
+      ...options.promptCacheKey != null && {
+        prompt_cache_key: options.promptCacheKey
+       }
+     };
+     if (xaiTools2 && xaiTools2.length > 0) {
+diff --git a/src/responses/convert-to-xai-responses-input.ts b/src/responses/convert-to-xai-responses-input.ts
+index 9a3712990cf646a6f7ba757d3f2893a3c37c6ef9..b018a9b95eb21e6c12794e6bddb3d953f40441e5 100644
+--- a/src/responses/convert-to-xai-responses-input.ts
+++ b/src/responses/convert-to-xai-responses-input.ts
+@@ -64,6 +64,17 @@ export async function convertToXaiResponsesInput({
+                   type: 'input_file',
+                   file_url: block.data.toString(),
+                 });
+              } else if (block.mediaType === 'application/pdf') {
+                contentParts.push({
+                  type: 'input_file',
+                  ...(typeof block.data === 'string' &&
+                  block.data.startsWith('file-')
+                    ? { file_id: block.data }
+                    : {
+                        filename: block.filename ?? 'file',
+                        file_data: `data:application/pdf;base64,${convertToBase64(block.data)}`,
+                      }),
+                });
+               } else {
+                 throw new UnsupportedFunctionalityError({
+                   functionality: `file part media type ${block.mediaType} as inline data (xAI Responses requires a URL or a Files API reference for non-image files)`,
+diff --git a/src/responses/xai-responses-api.ts b/src/responses/xai-responses-api.ts
+index 70483ea4f7c340b84c23766ac1d1df21e052842b..4b4d052860caa019556151e9e46dbfda8dfb18a9 100644
+--- a/src/responses/xai-responses-api.ts
+++ b/src/responses/xai-responses-api.ts
+@@ -27,7 +27,13 @@ export type XaiResponsesSystemMessage = {
+ export type XaiResponsesUserMessageContentPart =
+   | { type: 'input_text'; text: string }
+   | { type: 'input_image'; image_url: string }
+-  | { type: 'input_file'; file_url: string };
+  | {
+      type: 'input_file';
+      file_url?: string;
+      file_id?: string;
+      file_data?: string;
+      filename?: string;
+    };
+ 
+ export type XaiResponsesUserMessage = {
+   role: 'user';
+diff --git a/src/responses/xai-responses-language-model.ts b/src/responses/xai-responses-language-model.ts
+index f90df62eb9a30154388b1390e9f3acc3ccc022bf..00e61cba6cf048ae0045be692f33cb7e1e6a1188 100644
+--- a/src/responses/xai-responses-language-model.ts
+++ b/src/responses/xai-responses-language-model.ts
+@@ -182,6 +182,9 @@ export class XaiResponsesLanguageModel implements LanguageModelV3 {
+       ...(options.previousResponseId != null && {
+         previous_response_id: options.previousResponseId,
+       }),
+      ...(options.promptCacheKey != null && {
+        prompt_cache_key: options.promptCacheKey,
+      }),
+     };
+ 
+     if (xaiTools && xaiTools.length > 0) {
+diff --git a/src/responses/xai-responses-options.ts b/src/responses/xai-responses-options.ts
+index f8e96c061bf8793a402ababb8cad65bb2ad6aead..15c168892c1e8755453c61d3061e958cfd51ac71 100644
+--- a/src/responses/xai-responses-options.ts
+++ b/src/responses/xai-responses-options.ts
+@@ -32,6 +32,10 @@ export const xaiLanguageModelResponsesOptions = z.object({
+    * The ID of the previous response from the model.
+    */
+   previousResponseId: z.string().optional(),
+  /**
+   * A stable key used by xAI to improve prompt cache routing.
+   */
+  promptCacheKey: z.string().optional(),
+   /**
+    * Specify additional output data to include in the model response.
+    * Example values: 'file_search_call.results'.
Author	SHA1	Message	Date
Brendan Allan	4e1fc3e777	test(app): keep e2e mocks stack-compatible	2026-08-04 14:58:11 +08:00
Brendan Allan	022ed7ec68	test(app): migrate e2e fixtures to v2	2026-08-04 13:13:34 +08:00