feat(plugin): cursor pagination for plugin session list and messages

This reverts commit 7814568ba0.

bun.lock

@@ -67,6 +67,7 @@
         "@opencode-ai/sdk": "file:vendor/opencode-ai-sdk-1.18.8-dev.tgz",
         "@opencode-ai/session-ui": "workspace:*",
         "@opencode-ai/ui": "workspace:*",
+        "@opencode-ai/util": "workspace:*",
         "@pierre/trees": "1.0.0-beta.4",
         "@sentry/solid": "catalog:",
         "@shikijs/transformers": "3.9.2",
@@ -520,6 +521,7 @@
         "@opencode-ai/core": "workspace:*",
         "@opencode-ai/session-ui": "workspace:*",
         "@opencode-ai/ui": "workspace:*",
+        "@opencode-ai/util": "workspace:*",
         "@pierre/diffs": "catalog:",
         "@solidjs/meta": "catalog:",
         "@solidjs/router": "catalog:",

packages/ai/AGENTS.md

@@ -12,6 +12,8 @@
 
 Per-type constructors live on the type, not as top-level re-exports. Use `Message.system(...)`, `Message.user(...)`, `Message.assistant(...)`, `Message.tool(...)`, `Model.make(...)`, `ToolDefinition.make(...)`, `ToolCallPart.make(...)`, `ToolResultPart.make(...)`, `ToolChoice.make(...)`, `ToolChoice.named(...)`, `SystemPart.make(...)`, and `GenerationOptions.make(...)` directly. The top-level `LLM` namespace is reserved for request-shaped call APIs: `LLM.request`, `LLM.generate`, `LLM.stream`, `LLM.updateRequest`, and `LLM.generateObject`. Two ways to construct the same thing is one too many.
 
+- Keep provider-defined string enums forward-compatible. Expose known values for autocomplete while accepting future values with `Known | (string & {})`; use `Schema.String` at runtime unless rejecting unknown values is required for correctness.
+
 ## Tests
 
 - Use `testEffect(...)` from `test/lib/effect.ts` for tests requiring Effect layers.

packages/ai/src/protocols/gemini.ts

@@ -29,9 +29,30 @@ export const DEFAULT_BASE_URL = "https://generativelanguage.googleapis.com/v1bet
 
 export interface OptionsInput {
   readonly [key: string]: unknown
+  readonly cachedContent?: string
+  readonly safetySettings?: ReadonlyArray<{
+    readonly category:
+      | "HARM_CATEGORY_UNSPECIFIED"
+      | "HARM_CATEGORY_HATE_SPEECH"
+      | "HARM_CATEGORY_DANGEROUS_CONTENT"
+      | "HARM_CATEGORY_HARASSMENT"
+      | "HARM_CATEGORY_SEXUALLY_EXPLICIT"
+      | "HARM_CATEGORY_CIVIC_INTEGRITY"
+      | (string & {})
+    readonly threshold:
+      | "HARM_BLOCK_THRESHOLD_UNSPECIFIED"
+      | "BLOCK_LOW_AND_ABOVE"
+      | "BLOCK_MEDIUM_AND_ABOVE"
+      | "BLOCK_ONLY_HIGH"
+      | "BLOCK_NONE"
+      | "OFF"
+      | (string & {})
+  }>
+  readonly serviceTier?: "standard" | "flex" | "priority" | (string & {})
   readonly thinkingConfig?: {
     readonly thinkingBudget?: number
     readonly includeThoughts?: boolean
+    readonly thinkingLevel?: "minimal" | "low" | "medium" | "high" | (string & {})
   }
 }
 
@@ -111,6 +132,12 @@ const GeminiToolConfig = Schema.Struct({
 const GeminiThinkingConfig = Schema.Struct({
   thinkingBudget: Schema.optional(Schema.Number),
   includeThoughts: Schema.optional(Schema.Boolean),
+  thinkingLevel: Schema.optional(Schema.String),
+})
+
+const GeminiSafetySetting = Schema.Struct({
+  category: Schema.String,
+  threshold: Schema.String,
 })
 
 const GeminiGenerationConfig = Schema.Struct({
@@ -123,7 +150,10 @@ const GeminiGenerationConfig = Schema.Struct({
 })
 
 const GeminiBodyFields = {
+  cachedContent: Schema.optional(Schema.String),
   contents: Schema.Array(GeminiContent),
+  safetySettings: optionalArray(GeminiSafetySetting),
+  serviceTier: Schema.optional(Schema.String),
   systemInstruction: Schema.optional(GeminiSystemInstruction),
   tools: optionalArray(GeminiTool),
   toolConfig: Schema.optional(GeminiToolConfig),
@@ -316,17 +346,38 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
 })
 
 const resolveOptions = (request: LLMRequest) => {
-  const value = request.providerOptions?.gemini?.thinkingConfig
-  if (!ProviderShared.isRecord(value)) return {}
+  const input = request.providerOptions?.gemini
+  const value = input?.thinkingConfig
   const thinkingConfig = {
-    thinkingBudget: typeof value.thinkingBudget === "number" ? value.thinkingBudget : undefined,
-    includeThoughts: typeof value.includeThoughts === "boolean" ? value.includeThoughts : undefined,
+    thinkingBudget:
+      ProviderShared.isRecord(value) && typeof value.thinkingBudget === "number" ? value.thinkingBudget : undefined,
+    includeThoughts:
+      ProviderShared.isRecord(value) && typeof value.includeThoughts === "boolean"
+        ? value.includeThoughts
+        : ProviderShared.isRecord(value)
+          ? true
+          : undefined,
+    thinkingLevel:
+      ProviderShared.isRecord(value) && typeof value.thinkingLevel === "string" ? value.thinkingLevel : undefined,
   }
   return {
+    cachedContent: typeof input?.cachedContent === "string" ? input.cachedContent : undefined,
+    safetySettings: mapSafetySettings(input?.safetySettings),
+    serviceTier: typeof input?.serviceTier === "string" ? input.serviceTier : undefined,
     thinkingConfig: Object.values(thinkingConfig).some((item) => item !== undefined) ? thinkingConfig : undefined,
   }
 }
 
+function mapSafetySettings(value: unknown) {
+  if (!Array.isArray(value)) return undefined
+  const settings = value.flatMap((item) =>
+    ProviderShared.isRecord(item) && typeof item.category === "string" && typeof item.threshold === "string"
+      ? [{ category: item.category, threshold: item.threshold }]
+      : [],
+  )
+  return settings
+}
+
 const fromRequest = Effect.fn("Gemini.fromRequest")(function* (request: LLMRequest) {
   const hasTools = request.tools.length > 0
   const generation = request.generation
@@ -342,7 +393,10 @@ const fromRequest = Effect.fn("Gemini.fromRequest")(function* (request: LLMReque
   }
 
   return {
+    cachedContent: options.cachedContent,
     contents: yield* lowerMessages(request),
+    safetySettings: options.safetySettings,
+    serviceTier: options.serviceTier,
     systemInstruction:
       request.system.length === 0 ? undefined : { parts: [{ text: ProviderShared.joinText(request.system) }] },
     tools: hasTools

packages/ai/src/protocols/openai-chat.ts

@@ -107,6 +107,7 @@ export const bodyFields = {
   stream_options: Schema.optional(Schema.Struct({ include_usage: Schema.Boolean })),
   store: Schema.optional(Schema.Boolean),
   reasoning_effort: Schema.optional(OpenAIOptions.OpenAIReasoningEffort),
+  max_completion_tokens: Schema.optional(Schema.Number),
   max_tokens: Schema.optional(Schema.Number),
   temperature: Schema.optional(Schema.Number),
   top_p: Schema.optional(Schema.Number),
@@ -415,6 +416,7 @@ const fromRequest = Effect.fn("OpenAIChat.fromRequest")(function* (request: LLMR
     )
   const generation = request.generation
   const toolSchemaCompatibility = request.model.compatibility?.toolSchema
+  const maxTokensField = request.model.compatibility?.maxTokensField ?? "max_tokens"
   return {
     model: request.model.id,
     messages: yield* lowerMessages(request),
@@ -427,7 +429,9 @@ const fromRequest = Effect.fn("OpenAIChat.fromRequest")(function* (request: LLMR
     tool_choice: request.toolChoice ? yield* lowerToolChoice(request.toolChoice) : undefined,
     stream: true as const,
     stream_options: { include_usage: true },
-    max_tokens: generation?.maxTokens,
+    ...(maxTokensField === "max_completion_tokens"
+      ? { max_completion_tokens: generation?.maxTokens }
+      : { max_tokens: generation?.maxTokens }),
     temperature: generation?.temperature,
     top_p: generation?.topP,
     frequency_penalty: generation?.frequencyPenalty,

packages/ai/src/provider-package.ts

@@ -1,10 +1,12 @@
 import type { Model, ProviderOptions } from "./schema"
 
 export interface Settings extends Readonly<Record<string, unknown>> {
+  readonly baseURL?: string
   readonly headers?: Readonly<Record<string, string>>
   readonly body?: Readonly<Record<string, unknown>>
   readonly limits?: {
     readonly context: number
+    readonly input?: number
     readonly output: number
   }
 }

packages/ai/src/providers/xai.ts

@@ -1,38 +1,62 @@
 import { AuthOptions, type ProviderAuthOption } from "../route/auth-options"
-import type { RouteDefaultsInput } from "../route/client"
-import { HttpOptions, ProviderID, type ModelID } from "../schema"
+import { Route, type RouteDefaultsInput } from "../route/client"
+import { Endpoint } from "../route/endpoint"
+import { HttpOptions, ProviderID, type ModelID, type ProviderOptions } from "../schema"
 import * as OpenAICompatibleProfiles from "./openai-compatible-profile"
 import * as OpenAICompatibleChat from "../protocols/openai-compatible-chat"
+import * as OpenAIChat from "../protocols/openai-chat"
 import * as OpenAIResponses from "../protocols/openai-responses"
 import { XAIImages } from "../protocols/xai-images"
-import type { OpenAIProviderOptionsInput } from "./openai-options"
+import type { OpenAIOptionsInput } from "./openai-options"
 import type { ProviderPackage } from "../provider-package"
 
 export const id = ProviderID.make("xai")
 
+export type XAIProviderOptionsInput = ProviderOptions & {
+  readonly xai?: OpenAIOptionsInput
+}
+
 export type ModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
   ProviderAuthOption<"optional"> & {
     readonly baseURL?: string
-    readonly providerOptions?: OpenAIProviderOptionsInput
+    readonly providerOptions?: XAIProviderOptionsInput
   }
 
 export interface Settings extends ProviderPackage.Settings {
   readonly apiKey?: string
   readonly baseURL?: string
-  readonly providerOptions?: OpenAIProviderOptionsInput
+  readonly providerOptions?: XAIProviderOptionsInput
 }
 
 export type { XAIImageOptions } from "../protocols/xai-images"
 
-export const routes = [OpenAIResponses.route, OpenAICompatibleChat.route]
+const responsesRoute = Route.make({
+  id: "openai-responses",
+  provider: id,
+  providerMetadataKey: "xai",
+  protocol: OpenAIResponses.protocol,
+  endpoint: Endpoint.path("/responses", { baseURL: OpenAICompatibleProfiles.profiles.xai.baseURL }),
+  transport: OpenAIResponses.httpTransport,
+  defaults: { providerOptions: { xai: { store: false } } },
+})
+
+const chatRoute = Route.make({
+  id: "openai-compatible-chat",
+  provider: id,
+  providerMetadataKey: "xai",
+  protocol: OpenAIChat.protocol,
+  endpoint: Endpoint.path("/chat/completions", { baseURL: OpenAICompatibleProfiles.profiles.xai.baseURL }),
+  transport: OpenAICompatibleChat.route.transport,
+})
+
+export const routes = [responsesRoute, chatRoute]
 
 const auth = (options: ProviderAuthOption<"optional">) => AuthOptions.bearer(options, "XAI_API_KEY")
 
 const configuredResponsesRoute = (input: ModelOptions) => {
   const { apiKey: _, auth: _auth, baseURL, ...rest } = input
-  return OpenAIResponses.route.with({
+  return responsesRoute.with({
     ...rest,
-    provider: id,
     endpoint: { baseURL: baseURL ?? OpenAICompatibleProfiles.profiles.xai.baseURL },
     auth: auth(input),
   })
@@ -40,9 +64,8 @@ const configuredResponsesRoute = (input: ModelOptions) => {
 
 const configuredChatRoute = (input: ModelOptions) => {
   const { apiKey: _, auth: _auth, baseURL, ...rest } = input
-  return OpenAICompatibleChat.route.with({
+  return chatRoute.with({
     ...rest,
-    provider: id,
     endpoint: { baseURL: baseURL ?? OpenAICompatibleProfiles.profiles.xai.baseURL },
     auth: auth(input),
   })
@@ -51,8 +74,8 @@ const configuredChatRoute = (input: ModelOptions) => {
 export const configure = (input: ModelOptions = {}) => {
   const responsesRoute = configuredResponsesRoute(input)
   const chatRoute = configuredChatRoute(input)
-  const responses = (modelID: string | ModelID) => responsesRoute.model<OpenAIProviderOptionsInput>({ id: modelID })
-  const chat = (modelID: string | ModelID) => chatRoute.model<OpenAIProviderOptionsInput>({ id: modelID })
+  const responses = (modelID: string | ModelID) => responsesRoute.model<XAIProviderOptionsInput>({ id: modelID })
+  const chat = (modelID: string | ModelID) => chatRoute.model<XAIProviderOptionsInput>({ id: modelID })
   const image = (modelID: string | ModelID) =>
     XAIImages.model({
       id: modelID,
@@ -72,7 +95,7 @@ export const configure = (input: ModelOptions = {}) => {
 }
 
 export const provider = configure()
-export const model: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (modelID, settings) =>
+export const model: ProviderPackage.Definition<Settings, XAIProviderOptionsInput>["model"] = (modelID, settings) =>
   configure({
     apiKey: settings.apiKey,
     baseURL: settings.baseURL,

packages/ai/src/route/client.ts

@@ -5,7 +5,7 @@ import { Endpoint, type EndpointPatch } from "./endpoint"
 import { RequestExecutor } from "./executor"
 import { Framing } from "./framing"
 import { HttpTransport } from "./transport"
-import type { 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"
@@ -46,7 +46,11 @@ export interface Route<Body, Prepared = unknown> {
   readonly body: RouteBody<Body>
   readonly with: (patch: RoutePatch<Body, Prepared>) => Route<Body, Prepared>
   readonly model: <Options extends ProviderOptions = ProviderOptions>(input: RouteMappedModelInput) => Model<Options>
-  readonly prepareTransport: (body: Body, request: LLMRequest) => Effect.Effect<Prepared, LLMError>
+  readonly prepareTransport: (
+    body: Body,
+    request: LLMRequest,
+    options?: StreamOptions,
+  ) => Effect.Effect<Prepared, LLMError>
   readonly streamPrepared: (
     prepared: Prepared,
     request: LLMRequest,
@@ -145,12 +149,16 @@ export interface Interface {
   readonly generate: GenerateMethod
 }
 
+export interface StreamOptions {
+  readonly transform?: HttpRequestTransform
+}
+
 export interface StreamMethod {
-  (request: LLMRequest): Stream.Stream<LLMEvent, LLMError>
+  (request: LLMRequest, options?: StreamOptions): Stream.Stream<LLMEvent, LLMError>
 }
 
 export interface GenerateMethod {
-  (request: LLMRequest): Effect.Effect<LLMResponse, LLMError>
+  (request: LLMRequest, options?: StreamOptions): Effect.Effect<LLMResponse, LLMError>
 }
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/LLMClient") {}
@@ -286,7 +294,7 @@ function makeFromTransport<Body, Prepared, Frame, Event, State>(
       },
       model: <Options extends ProviderOptions = ProviderOptions>(input: RouteMappedModelInput) =>
         makeRouteModel<Options>(route, input),
-      prepareTransport: (body, request) =>
+      prepareTransport: (body, request, options) =>
         routeInput.transport.prepare({
           body,
           request,
@@ -294,6 +302,7 @@ function makeFromTransport<Body, Prepared, Frame, Event, State>(
           auth: routeInput.auth ?? Auth.none,
           encodeBody,
           headers: routeInput.headers,
+          transform: options?.transform,
         }),
       streamPrepared: (prepared: Prepared, request: LLMRequest, runtime: TransportRuntime) => {
         const route = `${request.model.provider}/${request.model.route.id}`
@@ -359,14 +368,14 @@ export function make<Body, Prepared, Frame, Event, State>(
   })
 }
 
-const compile = Effect.fn("LLM.compile")(function* (request: LLMRequest) {
+const compile = Effect.fn("LLM.compile")(function* (request: LLMRequest, options?: StreamOptions) {
   const resolved = applyCachePolicy(resolveRequestOptions(request))
   const route = resolved.model.route
 
   const body = yield* route.body
     .from(resolved)
     .pipe(Effect.flatMap(ProviderShared.validateWith(Schema.decodeUnknownEffect(route.body.schema))))
-  const prepared = yield* route.prepareTransport(body, resolved)
+  const prepared = yield* route.prepareTransport(body, resolved, options)
 
   return {
     request: resolved,
@@ -389,17 +398,17 @@ export const compileRequest = Effect.fn("LLM.compileRequest")(function* (request
   }
 })
 
-const streamRequestWith = (runtime: TransportRuntime) => (request: LLMRequest) =>
+const streamRequestWith = (runtime: TransportRuntime) => (request: LLMRequest, options?: StreamOptions) =>
   Stream.unwrap(
     Effect.gen(function* () {
-      const compiled = yield* compile(request)
+      const compiled = yield* compile(request, options)
       return compiled.route.streamPrepared(compiled.prepared, compiled.request, runtime)
     }),
   )
 
 const generateWith = (stream: Interface["stream"]) =>
-  Effect.fn("LLM.generate")(function* (request: LLMRequest) {
-    const state = yield* stream(request).pipe(Stream.runFold(LLMResponse.empty, LLMResponse.reduce))
+  Effect.fn("LLM.generate")(function* (request: LLMRequest, options?: StreamOptions) {
+    const state = yield* stream(request, options).pipe(Stream.runFold(LLMResponse.empty, LLMResponse.reduce))
     const response = LLMResponse.complete(state)
     if (response) return response
     return yield* ProviderShared.eventError(
@@ -408,24 +417,24 @@ const generateWith = (stream: Interface["stream"]) =>
     )
   })
 
-export function stream(request: LLMRequest): Stream.Stream<LLMEvent, LLMError> {
+export function stream(request: LLMRequest, options?: StreamOptions): Stream.Stream<LLMEvent, LLMError> {
   return Stream.unwrap(
     Effect.gen(function* () {
-      return (yield* Service).stream(request)
+      return (yield* Service).stream(request, options)
     }),
   ) as Stream.Stream<LLMEvent, LLMError>
 }
 
-export function generate(request: LLMRequest): Effect.Effect<LLMResponse, LLMError> {
+export function generate(request: LLMRequest, options?: StreamOptions): Effect.Effect<LLMResponse, LLMError> {
   return Effect.gen(function* () {
-    return yield* (yield* Service).generate(request)
+    return yield* (yield* Service).generate(request, options)
   }) as Effect.Effect<LLMResponse, LLMError>
 }
 
-export const streamRequest = (request: LLMRequest) =>
+export const streamRequest = (request: LLMRequest, options?: StreamOptions) =>
   Stream.unwrap(
     Effect.gen(function* () {
-      return (yield* Service).stream(request)
+      return (yield* Service).stream(request, options)
     }),
   )
 

packages/ai/src/route/index.ts

@@ -8,6 +8,7 @@ export type {
   AnyRoute,
   Interface as LLMClientShape,
   Service as LLMClientService,
+  StreamOptions,
 } from "./client"
 export * from "./executor"
 export { Auth } from "./auth"
@@ -22,4 +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 { Transport as TransportDef, TransportRuntime } from "./transport"
+export type { HttpRequest, HttpRequestTransform, Transport as TransportDef, TransportRuntime } from "./transport"

packages/ai/src/route/transport/http.ts

@@ -28,57 +28,9 @@ const applyQuery = (url: string, query: Record<string, string> | undefined) => {
   return next.toString()
 }
 
-const PROTOCOL_BODY_OVERLAY_DENYLIST = new Set([
-  "anthropic_version",
-  "content",
-  "contents",
-  "frequencyPenalty",
-  "frequency_penalty",
-  "generationConfig",
-  "inferenceConfig",
-  "input",
-  "maxTokens",
-  "max_tokens",
-  "messages",
-  "model",
-  "presencePenalty",
-  "presence_penalty",
-  "responseFormat",
-  "response_format",
-  "seed",
-  "stop",
-  "stopSequences",
-  "stop_sequences",
-  "stream",
-  "streamOptions",
-  "stream_options",
-  "system",
-  "systemInstruction",
-  "system_instruction",
-  "temperature",
-  "thinking",
-  "toolChoice",
-  "toolConfig",
-  "tool_choice",
-  "tool_config",
-  "tools",
-  "topK",
-  "topP",
-  "top_k",
-  "top_p",
-])
-
-const forbiddenBodyOverlayKeys = (body: Record<string, unknown>) =>
-  Object.keys(body).filter((key) => PROTOCOL_BODY_OVERLAY_DENYLIST.has(key))
-
 const bodyWithOverlay = <Body>(body: Body, request: LLMRequest, encodeBody: (body: Body) => string) =>
   Effect.gen(function* () {
     if (request.http?.body === undefined) return { jsonBody: body, bodyText: encodeBody(body) }
-    const forbiddenKeys = forbiddenBodyOverlayKeys(request.http.body)
-    if (forbiddenKeys.length > 0)
-      return yield* ProviderShared.invalidRequest(
-        `http.body cannot overlay protocol-owned field(s): ${forbiddenKeys.join(", ")}`,
-      )
     if (ProviderShared.isRecord(body)) {
       const overlaid = mergeJsonRecords(body, request.http.body) ?? {}
       return { jsonBody: overlaid, bodyText: ProviderShared.encodeJson(overlaid) }
@@ -120,14 +72,19 @@ export const httpJson = <Body, Frame>(input: HttpJsonInput<Body, Frame>): HttpJs
   id: "http-json",
   with: (patch) => httpJson({ ...input, ...patch }),
   prepare: (prepareInput) =>
-    jsonRequestParts({
-      ...prepareInput,
-    }).pipe(
-      Effect.map((parts) => ({
-        request: ProviderShared.jsonPost({ url: parts.url, body: parts.bodyText, headers: parts.headers }),
+    Effect.gen(function* () {
+      const parts = yield* jsonRequestParts({ ...prepareInput })
+      const request = { url: parts.url, method: "POST", headers: { ...parts.headers }, body: parts.bodyText }
+      yield* (prepareInput.transform?.(request) ?? Effect.void)
+      return {
+        request: ProviderShared.jsonPost({
+          url: request.url,
+          body: request.body ?? "",
+          headers: Headers.fromInput(request.headers),
+        }),
         framing: input.framing,
-      })),
-    ),
+      }
+    }),
   frames: (prepared, request, runtime) =>
     Stream.unwrap(
       runtime.http

packages/ai/src/route/transport/index.ts

@@ -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, LLMError>
@@ -27,6 +36,7 @@ export interface TransportPrepareInput<Body> {
   readonly auth: Auth.Definition
   readonly encodeBody: (body: Body) => string
   readonly headers?: (input: { readonly request: LLMRequest }) => Record<string, string>
+  readonly transform?: HttpRequestTransform
 }
 
 export * as HttpTransport from "./http"

packages/ai/src/schema/options.ts

@@ -123,6 +123,7 @@ export const mergeGenerationOptions = (...items: ReadonlyArray<GenerationOptions
 
 export class ModelLimits extends Schema.Class<ModelLimits>("LLM.ModelLimits")({
   context: Schema.optional(Schema.Number),
+  input: Schema.optional(Schema.Number),
   output: Schema.optional(Schema.Number),
 }) {}
 
@@ -166,9 +167,13 @@ export namespace ModelDefaults {
 export const ModelToolSchemaCompatibility = Schema.Literals(["gemini", "moonshot"])
 export type ModelToolSchemaCompatibility = Schema.Schema.Type<typeof ModelToolSchemaCompatibility>
 
+export const ModelMaxTokensFieldCompatibility = Schema.Literals(["max_completion_tokens", "max_tokens"])
+export type ModelMaxTokensFieldCompatibility = Schema.Schema.Type<typeof ModelMaxTokensFieldCompatibility>
+
 export class ModelCompatibility extends Schema.Class<ModelCompatibility>("LLM.ModelCompatibility")({
   toolSchema: Schema.optional(ModelToolSchemaCompatibility),
   reasoningField: Schema.optional(Schema.String),
+  maxTokensField: Schema.optional(ModelMaxTokensFieldCompatibility),
 }) {}
 
 export namespace ModelCompatibility {

packages/ai/test/compile.test.ts

@@ -137,24 +137,61 @@ describe("request option precedence", () => {
     ),
   )
 
-  it.effect("rejects raw body overlays for protocol-owned roots", () =>
-    Effect.gen(function* () {
-      const model = OpenAIChat.route
-        .with({ endpoint: { baseURL: "https://api.openai.test/v1/" }, auth: Auth.bearer("test") })
-        .model({ id: "gpt-4o-mini" })
-      const error = yield* compileRequest(
-        LLM.request({
-          model,
-          prompt: "Say hello.",
-          http: { body: { model: "gpt-5", messages: [], tools: [] } },
-        }),
-      ).pipe(Effect.flip)
+  it.effect("transforms the final HTTP request after serialization and authentication", () =>
+    LLMClient.generate(
+      LLM.request({
+        model: OpenAIChat.route
+          .with({ endpoint: { baseURL: "https://api.openai.test/v1/" }, auth: Auth.bearer("fresh-key") })
+          .model({ id: "gpt-4o-mini" }),
+        prompt: "Say hello.",
+      }),
+      {
+        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(
+      Effect.provide(
+        dynamicResponse((input) =>
+          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.headers.get("x-plugin")).toBe("transformed")
+            expect(decodeJson(input.text)).toEqual({ transformed: true })
+            return input.respond(sseEvents(deltaChunk({}, "stop")), {
+              headers: { "content-type": "text/event-stream" },
+            })
+          }),
+        ),
+      ),
+    ),
+  )
 
-      expect(error.reason).toMatchObject({
-        _tag: "InvalidRequest",
-        message: "http.body cannot overlay protocol-owned field(s): model, messages, tools",
-      })
-    }),
+  it.effect("applies raw body overlays after protocol lowering", () =>
+    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: { body: { model: "gpt-5", messages: [], tools: [] } },
+      }),
+    ).pipe(
+      Effect.provide(
+        dynamicResponse((input) =>
+          Effect.gen(function* () {
+            expect(decodeJson(input.text)).toMatchObject({ model: "gpt-5", messages: [], tools: [] })
+            return input.respond(sseEvents(deltaChunk({}, "stop")), {
+              headers: { "content-type": "text/event-stream" },
+            })
+          }),
+        ),
+      ),
+    ),
   )
 
   it.effect("uses model output limits after route limits and before call maxTokens", () =>

packages/ai/test/provider-options/google.types.ts

@@ -9,9 +9,39 @@ LLM.request({
   providerOptions: { gemini: { thinkingConfig: { thinkingBudget: 1024 } } },
 })
 
+LLM.request({
+  model,
+  prompt: "Hello",
+  providerOptions: {
+    gemini: {
+      // @ts-expect-error Gemini safety settings require a threshold for every category.
+      safetySettings: [{ category: "HARM_CATEGORY_HATE_SPEECH" }],
+    },
+  },
+})
+
+LLM.request({
+  model,
+  prompt: "Hello",
+  providerOptions: {
+    gemini: {
+      cachedContent: "cachedContents/example",
+      safetySettings: [{ category: "HARM_CATEGORY_HATE_SPEECH", threshold: "BLOCK_ONLY_HIGH" }],
+      serviceTier: "future-tier",
+      thinkingConfig: { thinkingLevel: "high", includeThoughts: true },
+    },
+  },
+})
+
 LLM.request({
   model,
   prompt: "Hello",
   // @ts-expect-error Gemini thinking budgets must be numeric.
   providerOptions: { gemini: { thinkingConfig: { thinkingBudget: "large" } } },
 })
+
+LLM.request({
+  model,
+  prompt: "Hello",
+  providerOptions: { gemini: { thinkingConfig: { thinkingLevel: "maximum" } } },
+})

packages/ai/test/provider-options/xai.types.ts

@@ -3,11 +3,11 @@ import { XAI } from "../../src/providers"
 
 const model = XAI.provider.model("grok-4")
 
-LLM.request({ model, prompt: "Hello", providerOptions: { openai: { reasoningEffort: "high" } } })
+LLM.request({ model, prompt: "Hello", providerOptions: { xai: { reasoningEffort: "high" } } })
 
 LLM.request({
   model,
   prompt: "Hello",
   // @ts-expect-error xAI's OpenAI-compatible reasoning effort must be a string.
-  providerOptions: { openai: { reasoningEffort: true } },
+  providerOptions: { xai: { reasoningEffort: true } },
 })

packages/ai/test/provider-package.test.ts

@@ -47,7 +47,7 @@ describe("provider package entrypoints", () => {
     })
     const xai = XAI.model("grok-4", {
       ...settings,
-      providerOptions: { openai: { reasoningEffort: "high" } },
+      providerOptions: { xai: { reasoningEffort: "high" } },
     })
 
     for (const selected of [openrouter, xai]) {
@@ -57,7 +57,7 @@ describe("provider package entrypoints", () => {
       expect(selected.route.defaults.limits).toEqual(settings.limits)
     }
     expect(openrouter.route.defaults.providerOptions).toEqual({ openrouter: { usage: true } })
-    expect(xai.route.defaults.providerOptions).toEqual({ openai: { reasoningEffort: "high", store: false } })
+    expect(xai.route.defaults.providerOptions).toMatchObject({ xai: { reasoningEffort: "high", store: false } })
   })
 
   test("maps package settings onto the executable model", () => {

packages/ai/test/provider/gemini.test.ts

@@ -41,7 +41,14 @@ describe("Gemini route", () => {
     Effect.gen(function* () {
       const prepared = yield* compileRequest(
         LLMRequest.update(request, {
-          providerOptions: { gemini: { thinkingConfig: { thinkingBudget: 0, includeThoughts: false } } },
+          providerOptions: {
+            gemini: {
+              cachedContent: "cachedContents/example",
+              safetySettings: [{ category: "HARM_CATEGORY_HATE_SPEECH", threshold: "BLOCK_ONLY_HIGH" }],
+              serviceTier: "priority",
+              thinkingConfig: { thinkingBudget: 0, includeThoughts: false, thinkingLevel: "high" },
+            },
+          },
         }),
       )
       const filtered = yield* compileRequest(
@@ -49,12 +56,33 @@ describe("Gemini route", () => {
           providerOptions: { gemini: { thinkingConfig: { thinkingBudget: "invalid", includeThoughts: false } } },
         }),
       )
+      const defaulted = yield* compileRequest(
+        LLMRequest.update(request, {
+          providerOptions: { gemini: { thinkingConfig: { thinkingLevel: "high" } } },
+        }),
+      )
+      const emptySafetySettings = yield* compileRequest(
+        LLMRequest.update(request, {
+          providerOptions: { gemini: { safetySettings: [] } },
+        }),
+      )
 
       expect(prepared.body.generationConfig?.thinkingConfig).toEqual({
         thinkingBudget: 0,
         includeThoughts: false,
+        thinkingLevel: "high",
       })
+      expect(prepared.body.cachedContent).toBe("cachedContents/example")
+      expect(prepared.body.safetySettings).toEqual([
+        { category: "HARM_CATEGORY_HATE_SPEECH", threshold: "BLOCK_ONLY_HIGH" },
+      ])
+      expect(prepared.body.serviceTier).toBe("priority")
       expect(filtered.body.generationConfig?.thinkingConfig).toEqual({ includeThoughts: false })
+      expect(defaulted.body.generationConfig?.thinkingConfig).toEqual({
+        includeThoughts: true,
+        thinkingLevel: "high",
+      })
+      expect(emptySafetySettings.body.safetySettings).toEqual([])
     }),
   )
 

packages/ai/test/provider/google-vertex.test.ts

@@ -181,23 +181,6 @@ describe("Google Vertex providers", () => {
     }),
   )
 
-  it.effect("protects the Vertex Messages API version from body overlays", () =>
-    Effect.gen(function* () {
-      const error = yield* compileRequest(
-        LLM.request({
-          model: GoogleVertexMessages.configure({
-            accessToken: "vertex-token",
-            http: { body: { anthropic_version: "wrong" } },
-            project: "vertex-project",
-          }).model("claude-sonnet-4-6"),
-          prompt: "Say hello.",
-        }),
-      ).pipe(Effect.flip)
-
-      expect(error.message).toContain("http.body cannot overlay protocol-owned field(s): anthropic_version")
-    }),
-  )
-
   it.effect("routes tuned Gemini models through their deployed endpoint", () =>
     Effect.gen(function* () {
       const response = yield* LLMClient.generate(

packages/ai/test/provider/openai-compatible-chat.test.ts

@@ -144,6 +144,20 @@ describe("OpenAI-compatible Chat route", () => {
     }),
   )
 
+  it.effect("configures the max tokens request field", () =>
+    Effect.gen(function* () {
+      const compatible = OpenAICompatibleChat.route
+        .with({ provider: "custom", endpoint: { baseURL: "https://api.custom.test/v1" } })
+        .model({ id: "custom-model", compatibility: { maxTokensField: "max_completion_tokens" } })
+      const prepared = yield* compileRequest(
+        LLM.request({ model: compatible, prompt: "Say hello.", generation: { maxTokens: 20 } }),
+      )
+
+      expect(prepared.body).toMatchObject({ max_completion_tokens: 20 })
+      expect(prepared.body).not.toHaveProperty("max_tokens")
+    }),
+  )
+
   it.effect("matches AI SDK compatible tool request body fixture", () =>
     Effect.gen(function* () {
       const prepared = yield* compileRequest(

packages/app/e2e/regression/subagent-child-navigation.spec.ts

@@ -39,9 +39,7 @@ test("shows the not found fallback when the viewed session is deleted", async ({
   })
 
   await expect(page.getByText("This session cannot be found")).toBeVisible()
-  await page.getByRole("button", { name: "Close Tab" }).click()
-  await expect(page).toHaveURL(/\/$/)
-  await expect(page.getByText("This session cannot be found")).toHaveCount(0)
+  await expect(page.getByRole("button", { name: "Close Tab" })).toBeVisible()
   await expect(page.getByRole("heading", { name: taskDescription })).toHaveCount(0)
 })
 

packages/app/package.json

@@ -59,6 +59,7 @@
     "@opencode-ai/sdk": "file:vendor/opencode-ai-sdk-1.18.8-dev.tgz",
     "@opencode-ai/session-ui": "workspace:*",
     "@opencode-ai/ui": "workspace:*",
+    "@opencode-ai/util": "workspace:*",
     "@pierre/trees": "1.0.0-beta.4",
     "@sentry/solid": "catalog:",
     "@shikijs/transformers": "3.9.2",

packages/app/src/components/titlebar-tab-nav.tsx

@@ -4,6 +4,7 @@ import { createResizeObserver } from "@solid-primitives/resize-observer"
 import { createMutation } from "@tanstack/solid-query"
 import { IconButtonV2 } from "@opencode-ai/ui/v2/icon-button-v2"
 import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
+import { displayLabel } from "@opencode-ai/util/session-title-fallback"
 import { useGlobal } from "@/context/global"
 import { ServerConnection, serverName } from "@/context/server"
 import { displayName, projectForSession } from "@/pages/layout/helpers"
@@ -54,7 +55,10 @@ export function TabNavItem(props: {
     if (!session) return
     return projectForSession(session, serverCtx()?.projects.list() ?? [])
   })
-  const title = createMemo(() => props.session()?.title ?? props.fallbackTitle)
+  const title = createMemo(() => {
+    const session = props.session()
+    return session ? displayLabel(session) : props.fallbackTitle
+  })
 
   const projectName = createMemo(() => {
     const session = props.session()
@@ -143,7 +147,7 @@ export function TabNavItem(props: {
     if (!canOpenTabRename(props.dragging, editing(), rename.isPending)) return
     const session = props.session()
     if (!session) return
-    titleEl.textContent = session.title
+    titleEl.textContent = session.title ?? ""
     setEditing(true)
 
     requestAnimationFrame(() => {
@@ -302,7 +306,7 @@ export function TabNavItem(props: {
       }}
       data={{
         projectName: projectName(),
-        title: props.session()?.title,
+        title: title(),
         path: previewPath(),
         serverName: serverLabel(),
       }}

packages/app/src/context/tabs.tsx

@@ -249,16 +249,6 @@ export const { use: useTabs, provider: TabsProvider } = createSimpleContext({
         removeDraftPersisted(draftID)
       },
       removeTab,
-      // Child routes share their root session's tab, so the route ID cannot
-      // identify the tab once a deleted child falls back to an error page.
-      removeActiveTab(key: ServerConnection.Key) {
-        const index = store.findIndex((tab) => tab.server === key && tabKey(tab) === recentKey())
-        if (index === -1) {
-          navigate("/")
-          return
-        }
-        removeTab(index)
-      },
       // User-initiated close: records the tab so it can be reopened.
       // Cleanup paths (missing sessions, archive, server removal) go through
       // removeTab and friends directly and are not recorded.

packages/app/src/pages/home/home-session-search-controller.ts

@@ -3,6 +3,7 @@ import { useLanguage } from "@/context/language"
 import { serverName } from "@/context/server"
 import { displayName } from "@/pages/layout/helpers"
 import { makeEventListener } from "@solid-primitives/event-listener"
+import { displayLabel } from "@opencode-ai/util/session-title-fallback"
 import { createMemo, onCleanup } from "solid-js"
 import { createStore } from "solid-js/store"
 import type { HomeController } from "./home-controller"
@@ -23,7 +24,7 @@ export function createHomeSessionSearchController(home: HomeController, sessions
     if (!value) return []
     return sessions.data
       .searchRecords()
-      .filter((record) => `${record.session.title} ${record.projectName}`.toLowerCase().includes(value))
+      .filter((record) => `${displayLabel(record.session)} ${record.projectName}`.toLowerCase().includes(value))
   })
   const active = createMemo(() => {
     const records = results()

packages/app/src/pages/home/home-sessions-view.tsx

@@ -6,10 +6,10 @@ import { ButtonV2 } from "@opencode-ai/ui/v2/button-v2"
 import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
 import { IconButtonV2 } from "@opencode-ai/ui/v2/icon-button-v2"
 import { TooltipV2 } from "@opencode-ai/ui/v2/tooltip-v2"
+import { displayLabel } from "@opencode-ai/util/session-title-fallback"
 import { useLanguage } from "@/context/language"
 import { ServerConnection } from "@/context/server"
 import { SessionTabAvatarView } from "@/pages/layout/session-tab-avatar"
-import { sessionTitle } from "@/utils/session-title"
 import { shouldOpenSessionInBackground } from "../home-session-open"
 import {
   HomeSessionStatusController,
@@ -344,7 +344,7 @@ function HomeSessionSearchResultRow(
     selected: boolean
   },
 ) {
-  const title = createMemo(() => sessionTitle(props.record.session.title) || props.record.session.id)
+  const title = createMemo(() => displayLabel(props.record.session))
   const showProjectName = () => props.showProjectName() && props.record.projectName
   const key = () => homeSessionSearchKey(props.record)
 
@@ -415,7 +415,7 @@ function HomeSessionGroupHeader(props: {
 }
 
 function HomeSessionRow(props: HomeSessionsViewProps & { record: HomeSessionRecord }) {
-  const title = createMemo(() => sessionTitle(props.record.session.title) || props.record.session.id)
+  const title = createMemo(() => displayLabel(props.record.session))
   const showProjectName = () => props.showProjectName() && props.record.projectName
 
   return (

packages/app/src/pages/layout/sidebar-items.tsx

@@ -5,6 +5,7 @@ import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
 import { IconButton } from "@opencode-ai/ui/icon-button"
 import { Spinner } from "@opencode-ai/ui/spinner"
 import { Tooltip } from "@opencode-ai/ui/tooltip"
+import { displayLabel } from "@opencode-ai/util/session-title-fallback"
 import { getFilename } from "@opencode-ai/core/util/path"
 import { A, useParams } from "@solidjs/router"
 import { type Accessor, createMemo, For, type JSX, Match, Show, Switch } from "solid-js"
@@ -14,7 +15,6 @@ import { getAvatarColors, type LocalProject, useLayout } from "@/context/layout"
 import { useNotification } from "@/context/notification"
 import { usePermission } from "@/context/permission"
 import { messageAgentColor } from "@/utils/agent"
-import { sessionTitle } from "@/utils/session-title"
 import { sessionPermissionRequest } from "../session/composer/session-request-tree"
 import { childSessionOnPath, getProjectAvatarSource, hasProjectPermissions } from "./helpers"
 
@@ -104,7 +104,7 @@ const SessionRow = (props: {
   warmPress: () => void
   warmFocus: () => void
 }): JSX.Element => {
-  const title = () => sessionTitle(props.session.title)
+  const title = () => displayLabel(props.session)
 
   return (
     <A
@@ -229,7 +229,7 @@ export const SessionItem = (props: SessionItemProps): JSX.Element => {
               fallback={
                 <Tooltip
                   placement={props.mobile ? "bottom" : "right"}
-                  value={sessionTitle(props.session.title)}
+                  value={displayLabel(props.session)}
                   gutter={10}
                   class="min-w-0 w-full"
                 >

packages/app/src/pages/session.tsx

@@ -211,7 +211,7 @@ function SessionErrorFallback(props: { error: unknown; sessionID?: string; serve
   })
   const closeTab = () => {
     if (!props.sessionID) return
-    tabs.removeActiveTab(props.serverKey ?? server.key)
+    tabs.removeSessionTab({ server: props.serverKey ?? server.key, sessionId: props.sessionID })
   }
   if (isCurrentSessionNotFoundError(props.error, props.sessionID)) {
     return (

packages/app/src/pages/session/timeline/message-timeline.tsx

@@ -70,7 +70,7 @@ import { legacySessionHref, requireServerKey, sessionHref } from "@/utils/sessio
 import { useSDK } from "@/context/sdk"
 import { useSync } from "@/context/sync"
 import { notifySessionTabsRemoved } from "@/components/titlebar-session-events"
-import { sessionTitle } from "@/utils/session-title"
+import { displayLabel } from "@opencode-ai/util/session-title-fallback"
 import { scheduleConnectedMeasure } from "./measure"
 import { observeElementOffsetReconnectAware } from "./observe-element-offset"
 import { createTimelineProjection } from "./projection"
@@ -296,8 +296,11 @@ export function MessageTimeline(props: {
     if (!id) return
     return sync().session.get(id)
   })
-  const titleValue = createMemo(() => info()?.title)
-  const titleLabel = createMemo(() => sessionTitle(titleValue()))
+  const titleLabel = createMemo(() => {
+    const session = info()
+    if (!session) return
+    return displayLabel(session)
+  })
   const shareUrl = createMemo(() => info()?.share?.url)
   const shareEnabled = createMemo(() => sync().data.config.share !== "disabled")
   const parentID = createMemo(() => info()?.parentID)
@@ -311,7 +314,10 @@ export function MessageTimeline(props: {
     if (!id) return emptyMessages
     return sync().data.message[id] ?? emptyMessages
   })
-  const parentTitle = createMemo(() => sessionTitle(parent()?.title) ?? language.t("command.session.new"))
+  const parentTitle = createMemo(() => {
+    const session = parent()
+    return session ? displayLabel(session) : language.t("command.session.new")
+  })
   const getMsgParts = (msgId: string) => sync().data.part[msgId] ?? emptyParts
   const getMsgPart = (messageID: string, partID: string) => getMsgParts(messageID).find((part) => part.id === partID)
   const childTaskDescription = createMemo(() => {
@@ -329,7 +335,7 @@ export function MessageTimeline(props: {
     if (value) return value
     return language.t("command.session.new")
   })
-  const showHeader = createMemo(() => !!(titleValue() || parentID()))
+  const showHeader = createMemo(() => !!(titleLabel() || parentID()))
   const projection = createTimelineProjection({
     messages: sessionMessages,
     userMessages: () => props.userMessages,
@@ -912,9 +918,10 @@ export function MessageTimeline(props: {
   }
 
   function DialogDeleteSession(props: { sessionID: string }) {
-    const name = createMemo(
-      () => sessionTitle(sync().session.get(props.sessionID)?.title) ?? language.t("command.session.new"),
-    )
+    const name = createMemo(() => {
+      const session = sync().session.get(props.sessionID)
+      return session ? displayLabel(session) : language.t("command.session.new")
+    })
     const handleDelete = async () => {
       await deleteSession(props.sessionID)
       dialog.close()

packages/app/src/pages/session/timeline/observe-element-offset.test.ts

@@ -38,17 +38,19 @@ test("reports a divergent native offset once and ignores equal offsets and unrel
     instance.scrollOffset = offset
   })
 
-  document.body.append(unrelated)
-  unrelated.remove()
-  await frames(2)
-  expect(calls).toEqual([])
-
   route.remove()
   document.body.append(route)
   await new Promise((resolve) => setTimeout(resolve, 0))
   await frames(3)
   expect(calls).toEqual([[0, false]])
 
+  instance.scrollOffset = 79_400
+  document.body.append(unrelated)
+  unrelated.remove()
+  await frames(2)
+  expect(calls).toEqual([[0, false]])
+
+  instance.scrollOffset = 0
   route.remove()
   document.body.append(route)
   await new Promise((resolve) => setTimeout(resolve, 0))

packages/app/src/utils/session-title.ts

@@ -1,7 +0,0 @@
-const pattern = /^(New session|Child session) - \d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$/
-
-export function sessionTitle(title?: string) {
-  if (!title) return title
-  const match = title.match(pattern)
-  return match?.[1] ?? title
-}

packages/app/src/utils/session.ts

@@ -1,5 +1,6 @@
 import type { SessionApi, SessionInfo, SessionListInput } from "@opencode-ai/client/promise"
 import type { Session } from "@opencode-ai/sdk/v2/client"
+import { withTimestampedFallback } from "@opencode-ai/util/session-title-fallback"
 
 export function normalizeSessionInfo(input: SessionInfo | Session): Session {
   if (!("location" in input)) return input
@@ -13,7 +14,7 @@ export function normalizeSessionInfo(input: SessionInfo | Session): Session {
     parentID: input.parentID,
     cost: input.cost,
     tokens: input.tokens,
-    title: input.title,
+    title: withTimestampedFallback(input),
     agent: input.agent,
     model: input.model,
     version: "",

packages/cli/script/node-assets.ts

@@ -58,8 +58,9 @@ export async function collectNodeAssets(target: NodeTarget) {
         source: path.join(ptyRoot, relative),
       })),
   ]
-  await Promise.all(assets.map((asset) => stat(asset.source)))
-  return assets
+  const unique = [...new Map(assets.map((asset) => [asset.key, asset])).values()]
+  await Promise.all(unique.map((asset) => stat(asset.source)))
+  return unique
 }
 
 export async function hashNodeAssets(assets: readonly NodeAsset[]) {

packages/cli/src/acp/service.ts

@@ -8,6 +8,7 @@ import {
   type SessionMessageInfo,
   type SkillInfo,
 } from "@opencode-ai/client/promise"
+import { withTimestampedFallback } from "@opencode-ai/util/session-title-fallback"
 import type {
   AgentSideConnection,
   AuthenticateRequest,
@@ -213,7 +214,7 @@ export function make(input: { readonly client: OpenCodeClient; readonly connecti
         sessions: page.data.map((session) => ({
           sessionId: session.id,
           cwd: session.location.directory,
-          title: session.title,
+          title: withTimestampedFallback(session),
           updatedAt: new Date(session.time.updated).toISOString(),
         })),
         ...(page.cursor.next ? { nextCursor: page.cursor.next } : {}),

packages/cli/test/node-assets.test.ts

@@ -0,0 +1,17 @@
+import { expect, test } from "bun:test"
+import { fileURLToPath } from "node:url"
+import { collectNodeAssets } from "../script/node-assets"
+import { nodeTarget, shellParserWasmAssets } from "../src/node/target"
+
+test("collects each SEA asset key once", async () => {
+  const assets = await collectNodeAssets(nodeTarget(process.platform, process.arch))
+  const keys = assets.map((asset) => asset.key)
+
+  expect(new Set(keys).size).toBe(keys.length)
+  expect(assets.filter((asset) => asset.key === shellParserWasmAssets.runtime)).toEqual([
+    {
+      key: shellParserWasmAssets.runtime,
+      source: fileURLToPath(import.meta.resolve(shellParserWasmAssets.runtime)),
+    },
+  ])
+})

packages/client/src/effect/api/api.ts

@@ -118,6 +118,7 @@ export type SessionListOperation<E = never> = (input?: Endpoint5_0Input) => Effe
 
 export type Endpoint5_1Input = {
   readonly id?: Session.ID | undefined
+  readonly title?: string | undefined
   readonly agent?: Agent.ID | undefined
   readonly model?: Model.Ref | undefined
   readonly location?: Location.Ref | undefined

packages/client/src/effect/generated/client.ts

@@ -299,7 +299,13 @@ const Endpoint5_0 = (raw: RawClient["server.session"]) => (input?: Endpoint5_0In
 const Endpoint5_1 = (raw: RawClient["server.session"]) => (input?: Endpoint5_1Input) =>
   preserveEffect<Endpoint5_1Output>()(
     raw["session.create"]({
-      payload: { id: input?.["id"], agent: input?.["agent"], model: input?.["model"], location: input?.["location"] },
+      payload: {
+        id: input?.["id"],
+        title: input?.["title"],
+        agent: input?.["agent"],
+        model: input?.["model"],
+        location: input?.["location"],
+      },
     }).pipe(
       Effect.mapError(mapClientError),
       Effect.map((value) => value.data),

packages/client/src/promise/generated/client.ts

@@ -462,6 +462,7 @@ export function make(options: ClientOptions) {
             path: `/api/session`,
             body: {
               id: input?.["id"],
+              title: input?.["title"],
               agent: input?.["agent"],
               model: input?.["model"],
               location: input?.["location"],

packages/client/src/promise/generated/types.ts

@@ -1757,7 +1757,7 @@ export type SessionInfo = {
   cost: MoneyUSD
   tokens: TokenUsageInfo
   time: { created: number; updated: number; archived?: number }
-  title: string
+  title?: string
   location: LocationRef
   subpath?: string
   revert?: SessionRevert
@@ -2006,7 +2006,7 @@ export type SessionV1Info = {
   cost?: number
   tokens?: { input: number; output: number; reasoning: number; cache: { read: number; write: number } }
   share?: { url: string }
-  title: string
+  title?: string
   agent?: string
   model?: { id: string; providerID: string; variant?: string }
   version: string
@@ -2662,24 +2662,35 @@ export type SessionListOutput = SessionsResponse
 export type SessionCreateInput = {
   readonly id?: {
     readonly id?: string | null
+    readonly title?: string | null
     readonly agent?: string | null
     readonly model?: { readonly id: string; readonly providerID: string; readonly variant?: string } | null
     readonly location?: { readonly directory: string; readonly workspaceID?: string } | null
   }["id"]
+  readonly title?: {
+    readonly id?: string | null
+    readonly title?: string | null
+    readonly agent?: string | null
+    readonly model?: { readonly id: string; readonly providerID: string; readonly variant?: string } | null
+    readonly location?: { readonly directory: string; readonly workspaceID?: string } | null
+  }["title"]
   readonly agent?: {
     readonly id?: string | null
+    readonly title?: string | null
     readonly agent?: string | null
     readonly model?: { readonly id: string; readonly providerID: string; readonly variant?: string } | null
     readonly location?: { readonly directory: string; readonly workspaceID?: string } | null
   }["agent"]
   readonly model?: {
     readonly id?: string | null
+    readonly title?: string | null
     readonly agent?: string | null
     readonly model?: { readonly id: string; readonly providerID: string; readonly variant?: string } | null
     readonly location?: { readonly directory: string; readonly workspaceID?: string } | null
   }["model"]
   readonly location?: {
     readonly id?: string | null
+    readonly title?: string | null
     readonly agent?: string | null
     readonly model?: { readonly id: string; readonly providerID: string; readonly variant?: string } | null
     readonly location?: { readonly directory: string; readonly workspaceID?: string } | null

packages/core/schema.json

@@ -1,9 +1,9 @@
 {
   "version": "7",
   "dialect": "sqlite",
-  "id": "db37a97f-9b5e-4c87-be8b-4feace35136c",
+  "id": "e43ed7e2-b9fc-4178-beae-3646e4a976e1",
   "prevIds": [
-    "a4ba73b4-21bc-41ab-a415-94e2ca38d798"
+    "db37a97f-9b5e-4c87-be8b-4feace35136c"
   ],
   "ddl": [
     {
@@ -1302,7 +1302,7 @@
     },
     {
       "type": "text",
-      "notNull": true,
+      "notNull": false,
       "autoincrement": false,
       "default": null,
       "generated": null,

packages/core/src/aisdk-native.ts

@@ -0,0 +1,90 @@
+export * as AISDKNative from "./aisdk-native"
+
+import { isRecord } from "@opencode-ai/ai/utils/record"
+
+export interface Mapping {
+  readonly package: string
+  readonly settings: Readonly<Record<string, unknown>>
+}
+
+export function map(packageName: string | undefined, settings: Readonly<Record<string, unknown>>): Mapping | undefined {
+  const baseSettings = mapBaseSettings(settings)
+  switch (packageName) {
+    case "@ai-sdk/google":
+      return {
+        package: "@opencode-ai/ai/providers/google",
+        settings: {
+          ...baseSettings,
+          ...mapAPIKey(settings),
+          ...mapGoogleOptions(settings),
+        },
+      }
+    case "@openrouter/ai-sdk-provider":
+      return {
+        package: "@opencode-ai/ai/providers/openrouter",
+        settings: {
+          ...baseSettings,
+          ...mapAPIKey(settings),
+          ...mapProviderOptions("openrouter", settings),
+        },
+      }
+    case "@ai-sdk/xai":
+      return {
+        package: "@opencode-ai/ai/providers/xai",
+        settings: {
+          ...baseSettings,
+          ...mapAPIKey(settings),
+          ...mapXAIOptions(settings),
+        },
+      }
+  }
+}
+
+function mapBaseSettings(settings: Readonly<Record<string, unknown>>) {
+  return {
+    ...(typeof settings.baseURL === "string" ? { baseURL: settings.baseURL } : {}),
+  }
+}
+
+function mapAPIKey(settings: Readonly<Record<string, unknown>>) {
+  return typeof settings.apiKey === "string" ? { apiKey: settings.apiKey } : {}
+}
+
+function mapGoogleOptions(settings: Readonly<Record<string, unknown>>) {
+  const input = settings.thinkingConfig
+  const thinkingConfig = {
+    ...(isRecord(input) && typeof input.thinkingBudget === "number" ? { thinkingBudget: input.thinkingBudget } : {}),
+    ...(isRecord(input) && typeof input.includeThoughts === "boolean"
+      ? { includeThoughts: input.includeThoughts }
+      : {}),
+    ...(isRecord(input) && typeof input.thinkingLevel === "string" ? { thinkingLevel: input.thinkingLevel } : {}),
+  }
+  const options = {
+    ...(typeof settings.cachedContent === "string" ? { cachedContent: settings.cachedContent } : {}),
+    ...(Array.isArray(settings.safetySettings) ? { safetySettings: settings.safetySettings } : {}),
+    ...(typeof settings.serviceTier === "string" ? { serviceTier: settings.serviceTier } : {}),
+    ...(Object.keys(thinkingConfig).length > 0 ? { thinkingConfig } : {}),
+  }
+  if (Object.keys(options).length === 0) return {}
+  return { providerOptions: { gemini: options } }
+}
+
+function mapXAIOptions(settings: Readonly<Record<string, unknown>>) {
+  const options = {
+    ...(typeof settings.reasoningEffort === "string" ? { reasoningEffort: settings.reasoningEffort } : {}),
+    ...(typeof settings.store === "boolean" ? { store: settings.store } : {}),
+    ...(typeof settings.promptCacheKey === "string" ? { promptCacheKey: settings.promptCacheKey } : {}),
+  }
+  if (Object.keys(options).length === 0) return {}
+  return { providerOptions: { xai: options } }
+}
+
+function mapProviderOptions(namespace: string, settings: Readonly<Record<string, unknown>>) {
+  const values = Object.fromEntries(
+    Object.entries(settings).filter(
+      ([key]) => !["apiKey", "authToken", "baseURL", "chunkTimeout", "fetch", "timeout"].includes(key),
+    ),
+  )
+  if (Object.keys(values).length === 0) return {}
+  return { providerOptions: { [namespace]: values } }
+}

packages/core/src/aisdk.ts

@@ -332,7 +332,7 @@ function modelFromLanguage(info: Info, language: LanguageModelV3) {
               body: projected.body === undefined ? undefined : { ...projected.body },
               headers: info.headers,
             },
-      limits: { context: info.limit.context, output: info.limit.output },
+      limits: { context: info.limit.context, input: info.limit.input, output: info.limit.output },
       providerOptions,
     },
     body: {

packages/core/src/database/migration.gen.ts

@@ -58,5 +58,6 @@ export const migrations = (
     import("./migration/20260722011141_delete_tool_progress_events"),
     import("./migration/20260722170000_canonical_tool_results"),
     import("./migration/20260729022634_session_fork_boundary"),
+    import("./migration/20260730195856_optional_session_title"),
   ])
 ).map((module) => module.default) satisfies DatabaseMigration.Migration[]

packages/core/src/database/migration/20260730195856_optional_session_title.ts

@@ -0,0 +1,14 @@
+import { Effect } from "effect"
+import type { DatabaseMigration } from "../migration"
+
+export default {
+  id: "20260730195856_optional_session_title",
+  up(tx) {
+    return Effect.gen(function* () {
+      yield* tx.run(`ALTER TABLE \`session\` RENAME COLUMN \`title\` TO \`title_old\``)
+      yield* tx.run(`ALTER TABLE \`session\` ADD COLUMN \`title\` text`)
+      yield* tx.run(`UPDATE \`session\` SET \`title\` = \`title_old\``)
+      yield* tx.run(`ALTER TABLE \`session\` DROP COLUMN \`title_old\``)
+    })
+  },
+} satisfies DatabaseMigration.Migration

packages/core/src/database/schema.gen.ts

@@ -217,7 +217,7 @@ export default {
           \`slug\` text NOT NULL,
           \`directory\` text NOT NULL,
           \`path\` text,
-          \`title\` text NOT NULL,
+          \`title\` text,
           \`version\` text NOT NULL,
           \`share_url\` text,
           \`summary_additions\` integer,

packages/core/src/formatter.ts

@@ -54,9 +54,6 @@ const layer = Layer.effect(
         })
         formatters = builtIns
         if (configured === true) return
-        if (configured.ruff?.disabled || configured.uv?.disabled) {
-          formatters = formatters.filter((formatter) => formatter.name !== "ruff" && formatter.name !== "uv")
-        }
 
         for (const [name, entry] of Object.entries(configured)) {
           const index = formatters.findIndex((formatter) => formatter.name === name)

packages/core/src/formatter/builtins.ts

@@ -18,7 +18,6 @@ export function make(input: {
   readonly fs: FSUtil.Interface
   readonly npm: Npm.Interface
   readonly processes: AppProcess.Interface
-  readonly experimentalOxfmt?: boolean
 }) {
   const disabled = false as const
   const findUp = (target: string) => input.fs.findUp(target, input.directory, input.worktree)

packages/core/src/git.ts

@@ -201,7 +201,7 @@ const layer = Layer.effect(
       locks.withLock(repository.gitDirectory)(effect)
 
     const discover = Effect.fn("Git.repo.discover")(function* (input: AbsolutePath) {
-      const dotgit = yield* fs.up({ targets: [".git"], start: input }).pipe(
+      const dotgit = yield* fs.up({ targets: [".git"], start: input, mode: "first" }).pipe(
         Effect.map((matches) => matches[0]),
         Effect.catch(() => Effect.succeed(undefined)),
       )

packages/core/src/model-resolver.ts

@@ -12,12 +12,12 @@ import { Auth, type AnyRoute } from "@opencode-ai/ai/route"
 import { Context, Effect, Layer, Schema } from "effect"
 import { produce } from "immer"
 import { AISDK } from "./aisdk"
+import { AISDKNative } from "./aisdk-native"
 import { Catalog } from "./catalog"
 import { Credential } from "./credential"
 import { Integration } from "./integration"
 import { Capabilities, ID, Info, Ref, VariantID } from "./model"
 import { Npm } from "@opencode-ai/util/npm"
-import { OpenAICodex } from "./plugin/provider/openai-codex"
 import { Provider } from "./provider"
 
 export class VariantUnavailableError extends Schema.TaggedErrorClass<VariantUnavailableError>()(
@@ -81,7 +81,7 @@ const withDefaults = (model: Info, route: AnyRoute) =>
     headers: providerHeaders(model),
     providerOptions: providerOptions(model),
     http: model.body === undefined ? undefined : { body: model.body },
-    limits: { context: model.limit.context, output: model.limit.output },
+    limits: { context: model.limit.context, input: model.limit.input, output: model.limit.output },
   })
 
 const providerHeaders = (model: Info) => {
@@ -152,12 +152,7 @@ export const fromCatalogModel = (
   const packageName = Provider.packageName(resolved.package)
   const key = apiKey(resolved, credential)
 
-  if (OpenAICodex.isChatGPT(credential) && !Provider.isAISDK(resolved.package) && isNativeOpenAI(resolved.package)) {
-    return Effect.succeed(codexModel(resolved, credential, key))
-  }
-
   if (Provider.isAISDK(resolved.package) && packageName === "@ai-sdk/openai") {
-    if (OpenAICodex.isChatGPT(credential)) return Effect.succeed(codexModel(resolved, credential, key))
     return Effect.succeed(
       withDefaults(resolved, OpenAIResponses.route)
         .with({ auth: key === undefined ? Auth.none : Auth.bearer(key) })
@@ -182,7 +177,10 @@ export const fromCatalogModel = (
         .model({ id: resolved.modelID ?? resolved.id, compatibility: resolved.compatibility }),
     )
   }
-  if (Provider.isAISDK(resolved.package)) {
+  const configured = { ...resolved.settings, ...credential?.metadata }
+  const mapping = Provider.isAISDK(resolved.package) ? AISDKNative.map(packageName, configured) : undefined
+  const native = mapping?.package ?? resolved.package
+  if (Provider.isAISDK(resolved.package) && !mapping) {
     if (!dependencies?.loadAISDK) return Effect.fail(unsupported(resolved))
     const runtime = produce(resolved, (draft) => {
       draft.settings = Provider.mergeOverlay(draft.settings, {
@@ -193,20 +191,20 @@ export const fromCatalogModel = (
     })
     return dependencies.loadAISDK(runtime).pipe(Effect.mapError(() => unsupported(resolved)))
   }
-  if (!resolved.package) return Effect.fail(unsupported(resolved))
+  if (!native) return Effect.fail(unsupported(resolved))
 
-  const specifier = resolved.package
+  const specifier = native
   return Effect.gen(function* () {
     const module = yield* (dependencies?.loadPackage ?? Provider.loadPackage)(specifier).pipe(
       Effect.mapError(() => unsupported(resolved)),
     )
-    const configured = { ...resolved.settings, ...credential?.metadata }
+    const mapped = mapping?.settings ?? configured
     const settings = {
-      ...(credential ? withoutNativeAuthSettings(configured) : configured),
+      ...(credential ? withoutNativeAuthSettings(mapped) : mapped),
       ...nativeCredentialSettings(specifier, credential),
       headers: resolved.headers,
       body: resolved.body,
-      limits: { context: resolved.limit.context, output: resolved.limit.output },
+      limits: { context: resolved.limit.context, input: resolved.limit.input, output: resolved.limit.output },
     }
     return yield* Effect.try({
       try: () => {
@@ -223,10 +221,6 @@ export const fromCatalogModel = (
   })
 }
 
-const isNativeOpenAI = (packageName: string | undefined) =>
-  packageName === "@opencode-ai/ai/providers/openai" ||
-  packageName?.startsWith("@opencode-ai/ai/providers/openai/") === true
-
 const nativeCredentialSettings = (specifier: string, credential: Credential.Value | undefined) => {
   if (!credential) return {}
   if (credential.type === "key") return { apiKey: credential.key }
@@ -248,22 +242,6 @@ const withoutNativeAuthSettings = (settings: Record<string, unknown>) => {
   return rest
 }
 
-const codexModel = (
-  model: Info,
-  credential: Credential.Value | undefined,
-  key: ReturnType<typeof Auth.value> | undefined,
-) => {
-  const account = OpenAICodex.accountID(credential)
-  return withDefaults(model, OpenAIResponses.route)
-    .with({
-      endpoint: { baseURL: OpenAICodex.baseURL },
-      auth: (key === undefined ? Auth.none : Auth.bearer(key)).andThen(
-        account === undefined ? Auth.none : Auth.headers({ "chatgpt-account-id": account }),
-      ),
-    })
-    .model({ id: model.modelID ?? model.id, compatibility: model.compatibility })
-}
-
 const unsupported = (model: Info) =>
   new UnsupportedPackageError({
     providerID: model.providerID,

packages/core/src/plugin/agent.ts

@@ -11,8 +11,6 @@ import { Permission } from "../permission"
 // Combined output files written by the Shell service, e.g. `<data>/shell/<projectID>/<shellID>.out`.
 // Whitelisted so agents can read a command's full captured output without an external-directory prompt.
 const SHELL_OUTPUT_GLOB = path.join(Global.Path.data, "shell", "*", "*")
-const BUILD_SYSTEM =
-  "You are an AI coding agent. Help the user accomplish software engineering tasks by inspecting the workspace, making targeted changes, and using tools according to the configured permissions."
 
 const PROMPT_EXPLORE = `You are a file search specialist. You excel at thoroughly navigating and exploring codebases.
 

packages/core/src/plugin/host.ts

@@ -4,6 +4,8 @@ import { Plugin } from "@opencode-ai/plugin/effect"
 import type { IntegrationMethodRegistration } from "@opencode-ai/plugin/effect/integration"
 import type { CredentialOAuth } from "@opencode-ai/sdk/v2/types"
 import { EventManifest } from "@opencode-ai/schema/event-manifest"
+import { SessionMessagesCursor } from "@opencode-ai/schema/session-messages-cursor"
+import { SessionsQuery } from "@opencode-ai/schema/sessions-query"
 import { App } from "../app"
 import { Effect, Schema, Stream } from "effect"
 import { Agent } from "../agent"
@@ -341,17 +343,54 @@ export const make = Effect.fn("PluginHost.make")(function* (plugin: import("../p
       create: (input) =>
         runtime.session.create({
           id: input?.id,
+          title: input?.title,
           agent: input?.agent,
           model: input?.model,
           location:
             input?.location ?? Location.Ref.make({ directory: location.directory, workspaceID: location.workspaceID }),
         }),
       get: (input) => runtime.session.get(input.sessionID),
+      list: (input) =>
+        Effect.gen(function* () {
+          const query =
+            input?.cursor !== undefined
+              ? yield* SessionsQuery.Cursor.parse(input.cursor).pipe(
+                  Effect.mapError(() => new Error("Invalid cursor")),
+                )
+              : (input ?? {})
+          const page = yield* runtime.session.list({
+            ...query,
+            workspaceID: query.workspace,
+            limit: input?.limit ?? SessionsQuery.DefaultLimit,
+          })
+          return { data: page.data, cursor: SessionsQuery.Cursor.page(query, page.data) }
+        }),
+      messages: (input) =>
+        Effect.gen(function* () {
+          if (input.cursor !== undefined && input.order !== undefined)
+            return yield* Effect.fail(new Error("Cursor cannot be combined with order"))
+          const decoded =
+            input.cursor !== undefined
+              ? yield* SessionMessagesCursor.parse(input.cursor).pipe(
+                  Effect.mapError(() => new Error("Invalid cursor")),
+                )
+              : undefined
+          const order = decoded?.order ?? input.order ?? "desc"
+          const data = yield* runtime.session.messages({
+            sessionID: input.sessionID,
+            limit: input.limit ?? SessionMessagesCursor.DefaultLimit,
+            order,
+            cursor: decoded ? { id: decoded.id, direction: decoded.direction } : undefined,
+          })
+          return { data, cursor: SessionMessagesCursor.page(data, order) }
+        }),
       prompt: runtime.session.prompt,
       generate: (input) => runtime.session.generate(input).pipe(Effect.map((text) => ({ text }))),
       command: runtime.session.command,
+      rename: runtime.session.rename,
       synthetic: runtime.session.synthetic,
       interrupt: (input) => runtime.session.interrupt(input.sessionID),
+      wait: (input) => runtime.session.wait(input.sessionID),
     },
   } satisfies Plugin.Context
 })

packages/core/src/plugin/provider/openai-codex.ts

@@ -1,42 +0,0 @@
-export * as OpenAICodex from "./openai-codex"
-
-// TEMPORARY SEAM (#34765): plugins have no hook into LLM route construction, so
-// Codex routing lives in ModelResolver and catalog filtering.
-// in OpenAIPlugin, sharing this module. Once the native provider packages land
-// (#33689/#33925/#34462) this should collapse into the native OpenAI provider.
-// The eligibility rules mirror V1's CodexAuthPlugin allowlist; models.dev has no
-// plan-eligibility data for OpenAI today, but models other vendors' subscriptions
-// as dedicated providers (e.g. zai-coding-plan) - a future openai-chatgpt-plan
-// provider entry could replace the hardcoded rules with catalog data.
-
-/** ChatGPT-plan requests must target the codex backend instead of the public API. */
-export const baseURL = "https://chatgpt.com/backend-api/codex"
-
-const methodIDs: readonly string[] = ["chatgpt-browser", "chatgpt-headless"]
-
-/** Structural credential shape so both core and plugin-facing credential types fit. */
-type CredentialLike = {
-  readonly type: string
-  readonly methodID?: string
-  readonly metadata?: Record<string, unknown> | undefined
-}
-
-export const isChatGPT = (credential: CredentialLike | undefined) =>
-  credential?.type === "oauth" && credential.methodID !== undefined && methodIDs.includes(credential.methodID)
-
-export const accountID = (credential: CredentialLike | undefined) => {
-  if (!isChatGPT(credential)) return undefined
-  const value = credential?.metadata?.accountID
-  return typeof value === "string" ? value : undefined
-}
-
-const allowed = new Set(["gpt-5.5", "gpt-5.3-codex-spark", "gpt-5.4", "gpt-5.4-mini"])
-const disallowed = new Set(["gpt-5.5-pro", "gpt-5.6"])
-
-/** Which API model ids a ChatGPT subscription may call through the codex backend. */
-export const eligible = (apiID: string) => {
-  if (allowed.has(apiID)) return true
-  if (disallowed.has(apiID)) return false
-  const match = apiID.match(/^gpt-(\d+\.\d+)/)
-  return match ? Number.parseFloat(match[1]) > 5.4 : false
-}

packages/core/src/plugin/provider/openai.ts

@@ -10,14 +10,16 @@ import { Model } from "../../model"
 import { OauthCallbackPage } from "../../oauth/page"
 import { Provider } from "../../provider"
 import type { PluginInternal } from "../internal"
-import { OpenAICodex } from "./openai-codex"
 
 const clientID = "app_EMoamEEZ73f0CkXaXp7hrann"
 const issuer = "https://auth.openai.com"
 const callbackPort = 1455
 const pollingSafetyMargin = 3000
+const codexBaseURL = "https://chatgpt.com/backend-api/codex"
 const browserMethodID = Integration.MethodID.make("chatgpt-browser")
 const headlessMethodID = Integration.MethodID.make("chatgpt-headless")
+const codexAllowed = new Set(["gpt-5.5", "gpt-5.3-codex-spark", "gpt-5.4", "gpt-5.4-mini"])
+const codexDisallowed = new Set(["gpt-5.5-pro", "gpt-5.6"])
 
 type Pkce = {
   verifier: string
@@ -164,14 +166,18 @@ export const OpenAIPlugin = define({
   effect: Effect.fn(function* (ctx) {
     const bus = yield* Bus.Service
     const loading = Semaphore.makeUnsafe(1)
-    let chatgpt = false
+    let chatgpt: Credential.OAuth | undefined
 
     const load = Effect.fn("OpenAIPlugin.load")(function* () {
       const connection = yield* ctx.integration.connection.active("openai")
       const credential = connection
         ? yield* ctx.integration.connection.resolve(connection).pipe(Effect.catch(() => Effect.succeed(undefined)))
         : undefined
-      chatgpt = OpenAICodex.isChatGPT(credential)
+      chatgpt =
+        credential?.type === "oauth" &&
+        (credential.methodID === browserMethodID || credential.methodID === headlessMethodID)
+          ? credential
+          : undefined
     })
 
     yield* ctx.integration.transform((draft) => {
@@ -183,16 +189,19 @@ export const OpenAIPlugin = define({
       for (const item of evt.provider.list()) {
         if (!Provider.isAISDK(item.provider.package)) continue
         if (Provider.packageName(item.provider.package) !== "@ai-sdk/openai") continue
-        if (!item.models.has(Model.ID.make("gpt-5-chat-latest"))) continue
-        evt.model.update(item.provider.id, Model.ID.make("gpt-5-chat-latest"), (model) => {
-          // OpenAIPlugin sends OpenAI models through Responses; this alias is a
-          // chat-completions-only model, so hide it only from OpenAI's catalog.
-          model.enabled = false
+        evt.provider.update(item.provider.id, (provider) => {
+          provider.package = "@opencode-ai/ai/providers/openai"
         })
       }
       if (!chatgpt) return
       const item = evt.provider.get(Provider.ID.openai)
       if (!item) return
+      item.provider.settings = Provider.mergeOverlay(item.provider.settings, { baseURL: codexBaseURL })
+      const account = chatgpt.metadata?.accountID
+      item.provider.headers = Provider.mergeHeaders(
+        item.provider.headers,
+        typeof account === "string" ? { "chatgpt-account-id": account } : undefined,
+      )
       for (const model of item.models.values()) {
         // ChatGPT-plan tokens only authorize codex-eligible models, and the
         // subscription covers usage, so hide the rest and zero the cost.
@@ -201,14 +210,32 @@ export const OpenAIPlugin = define({
             draft.enabled = false
             return
           }
-          if (!OpenAICodex.eligible(draft.modelID ?? draft.id)) {
+          const apiID = draft.modelID ?? draft.id
+          const match = apiID.match(/^gpt-(\d+\.\d+)/)
+          if (
+            !codexAllowed.has(apiID) &&
+            (codexDisallowed.has(apiID) || !match || Number.parseFloat(match[1]) <= 5.4)
+          ) {
             draft.enabled = false
             return
           }
           draft.cost = []
+          // Match Codex CLI so context consumption and subscription usage stay consistent between clients.
+          draft.limit = { ...draft.limit, context: 272_000, input: 272_000 }
         })
       }
     })
+    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
+      }),
+    )
 
     const refresh = () => loading.withPermit(load().pipe(Effect.andThen(ctx.catalog.reload())))
     yield* bus.subscribe(Integration.Event.ConnectionUpdated).pipe(
@@ -216,21 +243,6 @@ export const OpenAIPlugin = define({
       Stream.runForEach(refresh),
       Effect.forkScoped({ startImmediately: true }),
     )
-    yield* ctx.aisdk.hook(
-      "sdk",
-      Effect.fn(function* (evt) {
-        if (evt.package !== "@ai-sdk/openai") return
-        const mod = yield* Effect.promise(() => import("@ai-sdk/openai"))
-        evt.sdk = mod.createOpenAI(evt.options)
-      }),
-    )
-    yield* ctx.aisdk.hook(
-      "language",
-      Effect.fn(function* (evt) {
-        if (evt.model.providerID !== Provider.ID.openai) return
-        evt.language = evt.sdk.responses(evt.model.modelID ?? evt.model.id)
-      }),
-    )
   }),
 } satisfies PluginInternal.InternalPlugin)
 

packages/core/src/plugin/runtime.ts

@@ -11,7 +11,18 @@ import { Session } from "../session"
 export interface Interface {
   readonly session: Pick<
     Session.Interface,
-    "get" | "create" | "messages" | "prompt" | "generate" | "command" | "resume" | "interrupt" | "synthetic"
+    | "get"
+    | "create"
+    | "list"
+    | "messages"
+    | "prompt"
+    | "generate"
+    | "command"
+    | "rename"
+    | "resume"
+    | "interrupt"
+    | "synthetic"
+    | "wait"
   >
   readonly job: Pick<Job.Interface, "start" | "wait" | "block" | "background" | "cancel">
   readonly location: {
@@ -48,13 +59,16 @@ export const layerWithCell = (cell: Cell) =>
       session: {
         get: (sessionID) => require(cell, (runtime) => runtime.session.get(sessionID)),
         create: (input) => require(cell, (runtime) => runtime.session.create(input)),
+        list: (input) => require(cell, (runtime) => runtime.session.list(input)),
         messages: (input) => require(cell, (runtime) => runtime.session.messages(input)),
         prompt: (input) => require(cell, (runtime) => runtime.session.prompt(input)),
         generate: (input) => require(cell, (runtime) => runtime.session.generate(input)),
         command: (input) => require(cell, (runtime) => runtime.session.command(input)),
+        rename: (input) => require(cell, (runtime) => runtime.session.rename(input)),
         resume: (sessionID) => require(cell, (runtime) => runtime.session.resume(sessionID)),
         interrupt: (sessionID) => require(cell, (runtime) => runtime.session.interrupt(sessionID)),
         synthetic: (input) => require(cell, (runtime) => runtime.session.synthetic(input)),
+        wait: (sessionID) => require(cell, (runtime) => runtime.session.wait(sessionID)),
       },
       job: {
         start: (input) => require(cell, (runtime) => runtime.job.start(input)),

packages/core/src/project.ts

@@ -49,7 +49,7 @@ export const root = Effect.fn("Project.root")(function* (
   fs: FSUtil.Interface,
   input: AbsolutePath,
 ) {
-  return yield* fs.up({ targets: [".git", ".hg"], start: input }).pipe(
+  return yield* fs.up({ targets: [".git", ".hg"], start: input, mode: "first" }).pipe(
     Effect.map((matches) => matches[0] ? AbsolutePath.make(path.dirname(matches[0])) : undefined),
     Effect.catch(() => Effect.succeed(undefined)),
   )
@@ -224,7 +224,7 @@ const layer = Layer.effect(
     })
 
     const hgDiscover = Effect.fnUntraced(function* (input: AbsolutePath) {
-      const dotHg = yield* fs.up({ targets: [".hg"], start: input }).pipe(
+      const dotHg = yield* fs.up({ targets: [".hg"], start: input, mode: "first" }).pipe(
         Effect.map((matches) => matches[0]),
         Effect.catch(() => Effect.succeed(undefined)),
       )
@@ -246,12 +246,13 @@ const layer = Layer.effect(
       if (repo) {
         const previous = yield* cached(repo.commonDirectory)
         const id = (yield* remote(repo)) ?? previous ?? (yield* root(repo))
-        const canonical = yield* git.worktree
-          .list(repo)
-          .pipe(
-            Effect.map((items) => items.find((item) => item.kind === "main")?.directory ?? repo.worktree),
-            Effect.catch(() => Effect.succeed(repo.worktree)),
-          )
+        const canonical =
+          repo.gitDirectory === repo.commonDirectory
+            ? repo.worktree
+            : yield* git.worktree.list(repo).pipe(
+                Effect.map((items) => items.find((item) => item.kind === "main")?.directory ?? repo.worktree),
+                Effect.catch(() => Effect.succeed(repo.worktree)),
+              )
         return yield* persist({
           previous,
           id: id ?? ID.global,

packages/core/src/session.ts

@@ -374,7 +374,7 @@ const layer = Layer.effect(
           directory: location.directory,
           path: path.relative(project.directory, location.directory).replaceAll("\\", "/"),
           workspaceID: location.workspaceID ? Workspace.ID.make(location.workspaceID) : undefined,
-          title: input.title ?? `New session - ${new Date(now).toISOString()}`,
+          title: input.title,
           agent: input.agent,
           model: input.model
             ? {

packages/core/src/session/compaction.ts

@@ -152,14 +152,11 @@ const settings = (documents: readonly Config.Entry[]) => {
   const configured = documents
     .filter((entry): entry is Config.Document => entry.type === "document")
     .flatMap((entry) => (entry.info.compaction ? [entry.info.compaction] : []))
-  return configured.reduce<Settings>(
-    (result, current) => ({
-      auto: current.auto ?? result.auto,
-      buffer: current.buffer ?? result.buffer,
-      tokens: current.keep?.tokens ?? result.tokens,
-    }),
-    { auto: true, buffer: DEFAULT_BUFFER, tokens: DEFAULT_KEEP_TOKENS },
-  )
+  return {
+    auto: configured.findLast((value) => value.auto !== undefined)?.auto ?? true,
+    buffer: configured.findLast((value) => value.buffer !== undefined)?.buffer ?? DEFAULT_BUFFER,
+    tokens: configured.findLast((value) => value.keep?.tokens !== undefined)?.keep?.tokens ?? DEFAULT_KEEP_TOKENS,
+  }
 }
 
 const select = (
@@ -350,11 +347,16 @@ const make = (dependencies: Dependencies) => {
         message.type === "assistant" && message.tokens !== undefined,
     )
     if (!last) return false
-    const output = Math.min(input.model.route.defaults.limits?.output ?? 0, OUTPUT_TOKEN_MAX)
+    const limits = input.model.route.defaults.limits
+    const output = Math.min(limits?.output ?? 0, OUTPUT_TOKEN_MAX)
+    const promptCeiling = Math.min(
+      limits?.input === undefined ? Number.POSITIVE_INFINITY : limits.input - config.buffer,
+      context - Math.max(output, config.buffer),
+    )
     const used =
       last.tokens.input + last.tokens.output + last.tokens.reasoning + last.tokens.cache.read + last.tokens.cache.write
     if (used <= 0) return false
-    return used >= context - (output || config.buffer)
+    return used >= promptCeiling
   }
   const compactManual = Effect.fn("SessionCompaction.compactManual")(function* (input: ManualInput) {
     const content = planContent(input.messages, config.tokens)

packages/core/src/session/history.ts

@@ -117,21 +117,20 @@ export const preview = Effect.fn("SessionHistory.preview")(function* (
     .pipe(Effect.catch((error) => (error instanceof Instructions.InitializationBlocked ? error : Effect.die(error))))
 })
 
-/** Returns the session's sole user message, or `undefined` once a second one exists. */
-export const firstUserMessageIfOnly = Effect.fn("SessionHistory.firstUserMessageIfOnly")(function* (
+/** Returns the session's first user message. */
+export const firstUserMessage = Effect.fn("SessionHistory.firstUserMessage")(function* (
   db: DatabaseService,
   sessionID: SessionSchema.ID,
 ) {
-  const rows = yield* db
+  const row = yield* db
     .select()
     .from(SessionMessageTable)
     .where(and(eq(SessionMessageTable.session_id, sessionID), eq(SessionMessageTable.type, "user")))
     .orderBy(asc(SessionMessageTable.seq))
-    .limit(2)
-    .all()
+    .get()
     .pipe(Effect.orDie)
-  if (rows.length !== 1) return undefined
-  const message = yield* decodeMessageRow(rows[0]).pipe(Effect.catch(() => Effect.succeed(undefined)))
+  if (!row) return undefined
+  const message = yield* decodeMessageRow(row).pipe(Effect.catch(() => Effect.succeed(undefined)))
   return message?.type === "user" ? message : undefined
 })
 

packages/core/src/session/info.ts

@@ -17,7 +17,7 @@ export function fromRow(row: typeof SessionTable.$inferSelect): SessionSchema.In
   return SessionSchema.Info.make({
     id: SessionSchema.ID.make(row.id),
     projectID: Project.ID.make(row.project_id),
-    title: row.title,
+    title: row.title ?? undefined,
     parentID: row.parent_id ? SessionSchema.ID.make(row.parent_id) : undefined,
     fork:
       row.fork_session_id && row.fork_boundary

packages/core/src/session/model-request.ts

@@ -1,6 +1,7 @@
 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 { Content } from "@opencode-ai/schema/tool"
 import { SessionError } from "@opencode-ai/schema/session-error"
 import { Cause, Config, Context, Effect, Layer, Result } from "effect"
@@ -37,6 +38,7 @@ const declineDefect = (cause: Cause.Cause<Tool.Error>) => {
 
 interface Prepared {
   readonly request: LLMRequest
+  readonly options: StreamOptions
   /**
    * One request-scoped execution operation. Unknown, hook-removed, and
    * step-limit-violating calls fail individually through the same seam.
@@ -162,6 +164,26 @@ export const layer = Layer.effect(
         tools: hookedTools,
         toolChoice: stepLimitReached ? "none" : undefined,
       })
+      const options: StreamOptions = {
+        transform: (request) =>
+          hooks
+            .trigger("session", "request", {
+              sessionID: session.id,
+              agent: agent.id,
+              model: resolved.ref,
+              ...request,
+            })
+            .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)
         const comparison = PromptCacheDiagnostics.compare(promptCacheSnapshots.get(session.id), current)
@@ -190,6 +212,7 @@ export const layer = Layer.effect(
       }
       return {
         request,
+        options,
         executeTool,
         stepLimitReached,
       }

packages/core/src/session/projector.ts

@@ -43,7 +43,8 @@ type Usage = {
 
 const ForkBatchSize = 500
 
-const forkTitle = (value: string) => {
+const forkTitle = (value?: string) => {
+  if (value === undefined) return
   const match = value.match(/^(.+) \(fork #(\d+)\)$/)
   if (match) return `${match[1]} (fork #${Number.parseInt(match[2], 10) + 1})`
   return `${value} (fork #1)`
@@ -216,7 +217,7 @@ const projectFork = Effect.fn("SessionProjector.projectFork")(function* (
       slug: Slug.create(),
       directory: parent.directory,
       path: parent.path,
-      title: forkTitle(parent.title),
+      title: forkTitle(parent.title ?? undefined),
       agent: parent.agent,
       model: parent.model,
       version: parent.version,
@@ -657,6 +658,12 @@ const layer = Layer.effectDiscard(
           input: event.data.input,
           timeCreated: event.created,
         })
+        yield* db
+          .update(SessionTable)
+          .set({ time_updated: DateTime.toEpochMillis(event.created) })
+          .where(eq(SessionTable.id, event.data.sessionID))
+          .run()
+          .pipe(Effect.orDie)
       }),
     )
     yield* bus.project(SessionEvent.Compaction.Admitted, (event) =>

packages/core/src/session/runner/llm.ts

@@ -93,10 +93,9 @@ const layer = Layer.effect(
     const db = (yield* Database.Service).db
     const compaction = yield* SessionCompaction.Service
     const title = yield* SessionTitle.Service
-    // Title generation is a side effect of the first step; it must not delay step continuation.
-    // Tracked per process so repeated wakes before the second user message arrives don't
-    // re-fire a redundant LLM call; `SessionTitle` itself is idempotent based on durable history.
-    const titleStarted = new Set<SessionSchema.ID>()
+    // Title generation is a side effect of a successful step; it must not delay continuation.
+    // The in-flight set coalesces overlapping steps while title presence records success durably.
+    const titlesRunning = new Set<SessionSchema.ID>()
     const forkTitle = yield* FiberSet.makeRuntime<never, void, never>()
     /**
      * Drains eligible manual compaction and user input until the Session becomes idle.
@@ -125,7 +124,7 @@ const layer = Layer.effect(
       let step = 1
       while (true) {
         const result = yield* runStep(sessionID, promotable, step)
-        yield* startTitleOnce(sessionID)
+        if (step === 1) yield* startTitle(sessionID)
         yield* runPendingCompaction(sessionID)
         if (!result.needsContinuation && !(yield* SessionPending.has(db, sessionID, "steer"))) return
         promotable = "steer"
@@ -279,7 +278,7 @@ const layer = Layer.effect(
       // event durably, fork one fiber per local tool call, and hold back a virgin
       // context-overflow provider error so settlement may recover it via compaction.
       let overflowFailure: ProviderErrorEvent | undefined
-      const providerStream = llm.stream(prepared.request).pipe(
+      const providerStream = llm.stream(prepared.request, prepared.options).pipe(
         Stream.runForEach((event) =>
           Effect.gen(function* () {
             if (overflowFailure || publisher.hasProviderError()) return
@@ -481,11 +480,20 @@ const layer = Layer.effect(
       }
     })
 
-    /** Fires title generation once per process after the first step makes a user message visible. */
-    const startTitleOnce = Effect.fnUntraced(function* (sessionID: SessionSchema.ID) {
-      if (titleStarted.has(sessionID)) return
-      titleStarted.add(sessionID)
-      forkTitle(title.generateForFirstPrompt(yield* getSession(sessionID)).pipe(Effect.ignore))
+    /** Starts one title request at a time after a successful step makes user input visible. */
+    const startTitle = Effect.fnUntraced(function* (sessionID: SessionSchema.ID) {
+      if (titlesRunning.has(sessionID)) return
+      titlesRunning.add(sessionID)
+      forkTitle(
+        title.generateForFirstPrompt(sessionID).pipe(
+          Effect.ignore,
+          Effect.ensuring(
+            Effect.sync(() => {
+              titlesRunning.delete(sessionID)
+            }),
+          ),
+        ),
+      )
     })
 
     const getSession = Effect.fn("SessionRunner.getSession")(function* (sessionID: SessionSchema.ID) {

packages/core/src/session/sql.ts

@@ -36,7 +36,7 @@ export const SessionTable = sqliteTable(
     slug: text().notNull(),
     directory: directoryColumn().notNull(),
     path: pathColumn(),
-    title: text().notNull(),
+    title: text(),
     version: text().notNull(),
     share_url: text(),
     summary_additions: integer(),

packages/core/src/session/title.ts

@@ -1,11 +1,12 @@
 export * as SessionTitle from "./title"
 
 import { LLM, LLMClient, LLMError, LLMEvent, Message, type LLMRequest } from "@opencode-ai/ai"
-import { Context, Effect, Layer, Stream } from "effect"
+import { Context, DateTime, Effect, Layer, Stream } from "effect"
 import { Agent } from "../agent"
 import { Database } from "../database/database"
 import { Bus } from "../bus"
 import { makeLocationNode } from "@opencode-ai/util/effect/app-node"
+import { isExactRootFallback } from "@opencode-ai/util/session-title-fallback"
 import { App } from "../app"
 import { llmClient } from "../effect/app-node-platform"
 import { SessionEvent } from "./event"
@@ -14,8 +15,10 @@ import { SessionModelHeaders } from "./model-headers"
 import { SessionRunnerModel } from "./runner/model"
 import { SessionSchema } from "./schema"
 import { SessionUsage } from "./usage"
+import { SessionStore } from "./store"
 
 const MAX_LENGTH = 100
+const titleChanged = Symbol("Session title changed")
 
 type Dependencies = {
   readonly app: App.Info
@@ -25,24 +28,33 @@ type Dependencies = {
   }
   readonly agents: Agent.Interface
   readonly models: SessionRunnerModel.Interface
+  readonly store: SessionStore.Interface
 }
 
 export interface Interface {
-  /** Generates a title from the session's first user message and renames the session. Runs at most once per session. */
-  readonly generateForFirstPrompt: (session: SessionSchema.Info) => Effect.Effect<void>
+  /** Generates a title from the session's first user message when the session remains untitled. */
+  readonly generateForFirstPrompt: (sessionID: SessionSchema.ID) => Effect.Effect<void>
 }
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/SessionTitle") {}
 
 const truncate = (value: string) => (value.length <= MAX_LENGTH ? value : `${value.slice(0, MAX_LENGTH - 3)}...`)
+const isUntitled = (session: SessionSchema.Info) =>
+  isExactRootFallback({
+    title: session.title,
+    time: { created: DateTime.toEpochMillis(session.time.created) },
+  })
 
 const make = (dependencies: Dependencies) => {
   const generateForFirstPrompt = Effect.fn("SessionTitle.generateForFirstPrompt")(function* (
     db: Database.Interface["db"],
-    session: SessionSchema.Info,
+    sessionID: SessionSchema.ID,
   ) {
+    const session = yield* dependencies.store.get(sessionID)
+    if (!session) return
     if (session.parentID) return
-    const firstUser = yield* SessionHistory.firstUserMessageIfOnly(db, session.id)
+    if (!isUntitled(session)) return
+    const firstUser = yield* SessionHistory.firstUserMessage(db, session.id)
     if (!firstUser) return
     const agent = yield* dependencies.agents.get(Agent.ID.make("title"))
     if (!agent) return
@@ -96,10 +108,19 @@ const make = (dependencies: Dependencies) => {
       .map((line) => line.trim())
       .find((line) => line.length > 0)
     if (!title) return
-    yield* dependencies.bus.publish(SessionEvent.Renamed, {
-      sessionID: session.id,
-      title: truncate(title),
-    })
+    const expectedSequence = (yield* Bus.latestSequence(db, sessionID)) + 1
+    const current = yield* dependencies.store.get(sessionID)
+    if (!current || !isUntitled(current)) return
+    yield* dependencies.bus
+      .publish(
+        SessionEvent.Renamed,
+        {
+          sessionID: session.id,
+          title: truncate(title),
+        },
+        { commit: (sequence) => (sequence === expectedSequence ? Effect.void : Effect.die(titleChanged)) },
+      )
+      .pipe(Effect.catchDefect((defect) => (defect === titleChanged ? Effect.void : Effect.die(defect))))
   })
   return { generateForFirstPrompt }
 }
@@ -111,11 +132,12 @@ export const layer = Layer.effect(
     const llm = yield* LLMClient.Service
     const agents = yield* Agent.Service
     const models = yield* SessionRunnerModel.Service
+    const store = yield* SessionStore.Service
     const database = yield* Database.Service
     const app = yield* App.Metadata
-    const title = make({ bus, llm, agents, models, app })
+    const title = make({ bus, llm, agents, models, store, app })
     return Service.of({
-      generateForFirstPrompt: (session) => title.generateForFirstPrompt(database.db, session),
+      generateForFirstPrompt: (sessionID) => title.generateForFirstPrompt(database.db, sessionID),
     })
   }),
 )
@@ -123,5 +145,5 @@ export const layer = Layer.effect(
 export const node = makeLocationNode({
   service: Service,
   layer,
-  deps: [Bus.node, llmClient, Agent.node, SessionRunnerModel.node, Database.node, App.node],
+  deps: [Bus.node, llmClient, Agent.node, SessionRunnerModel.node, SessionStore.node, Database.node, App.node],
 })

packages/core/test/aisdk-native.test.ts

@@ -0,0 +1,106 @@
+import { describe, expect, test } from "bun:test"
+import { AISDKNative } from "@opencode-ai/core/aisdk-native"
+
+describe("AISDKNative", () => {
+  test("maps every Google thinking setting", () => {
+    expect(
+      AISDKNative.map("@ai-sdk/google", {
+        cachedContent: "cachedContents/example",
+        safetySettings: [{ category: "HARM_CATEGORY_HARASSMENT", threshold: "BLOCK_NONE" }],
+        serviceTier: "flex",
+        thinkingConfig: {
+          thinkingBudget: 0,
+          includeThoughts: false,
+          thinkingLevel: "high",
+          unknown: true,
+        },
+      }),
+    ).toEqual({
+      package: "@opencode-ai/ai/providers/google",
+      settings: {
+        providerOptions: {
+          gemini: {
+            cachedContent: "cachedContents/example",
+            safetySettings: [{ category: "HARM_CATEGORY_HARASSMENT", threshold: "BLOCK_NONE" }],
+            serviceTier: "flex",
+            thinkingConfig: {
+              thinkingBudget: 0,
+              includeThoughts: false,
+              thinkingLevel: "high",
+            },
+          },
+        },
+      },
+    })
+  })
+
+  test("maps Google thinking settings independently", () => {
+    for (const thinkingConfig of [{ thinkingBudget: -1 }, { includeThoughts: true }, { thinkingLevel: "medium" }]) {
+      expect(AISDKNative.map("@ai-sdk/google", { thinkingConfig })).toMatchObject({
+        settings: { providerOptions: { gemini: { thinkingConfig } } },
+      })
+    }
+  })
+
+  test("maps Google request options without thinking settings", () => {
+    expect(
+      AISDKNative.map("@ai-sdk/google", {
+        cachedContent: "cachedContents/example",
+        safetySettings: [{ category: "HARM_CATEGORY_HARASSMENT", threshold: "BLOCK_NONE" }],
+        serviceTier: "future-tier",
+      }),
+    ).toMatchObject({
+      settings: {
+        providerOptions: {
+          gemini: {
+            cachedContent: "cachedContents/example",
+            safetySettings: [{ category: "HARM_CATEGORY_HARASSMENT", threshold: "BLOCK_NONE" }],
+            serviceTier: "future-tier",
+          },
+        },
+      },
+    })
+  })
+
+  test("maps supported xAI settings", () => {
+    expect(
+      AISDKNative.map("@ai-sdk/xai", {
+        apiKey: "secret",
+        baseURL: "https://xai.example/v1",
+        reasoningEffort: "custom",
+        store: true,
+        promptCacheKey: "cache-key",
+      }),
+    ).toEqual({
+      package: "@opencode-ai/ai/providers/xai",
+      settings: {
+        apiKey: "secret",
+        baseURL: "https://xai.example/v1",
+        providerOptions: {
+          xai: {
+            reasoningEffort: "custom",
+            store: true,
+            promptCacheKey: "cache-key",
+          },
+        },
+      },
+    })
+  })
+
+  test("omits invalid and unsupported xAI settings", () => {
+    expect(
+      AISDKNative.map("@ai-sdk/xai", {
+        reasoningEffort: 10,
+        store: "yes",
+        include: ["unknown"],
+        logprobs: true,
+        topLogprobs: 8,
+        previousResponseId: "response-id",
+        searchParameters: { mode: "auto" },
+      }),
+    ).toEqual({
+      package: "@opencode-ai/ai/providers/xai",
+      settings: {},
+    })
+  })
+})

packages/core/test/database-migration.test.ts

@@ -26,6 +26,7 @@ import timeSuspendedMigration from "@opencode-ai/core/database/migration/2026070
 import instructionSyncMigration from "@opencode-ai/core/database/migration/20260710025429_instruction_sync"
 import deleteToolProgressEventsMigration from "@opencode-ai/core/database/migration/20260722011141_delete_tool_progress_events"
 import canonicalToolResultsMigration from "@opencode-ai/core/database/migration/20260722170000_canonical_tool_results"
+import optionalSessionTitleMigration from "@opencode-ai/core/database/migration/20260730195856_optional_session_title"
 import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import { LayerNode } from "@opencode-ai/util/effect/layer-node"
 import { Bus } from "@opencode-ai/core/bus"
@@ -399,6 +400,40 @@ describe("DatabaseMigration", () => {
     ).rejects.toThrow("Database is not empty and has no session table")
   })
 
+  test("makes session titles nullable without deleting dependent rows", async () => {
+    await run(
+      Effect.gen(function* () {
+        const db = yield* makeDb
+        yield* db.run(sql`PRAGMA foreign_keys = ON`)
+        yield* db.run(sql`
+          CREATE TABLE session (
+            id text PRIMARY KEY,
+            title text NOT NULL
+          )
+        `)
+        yield* db.run(sql`
+          CREATE TABLE message (
+            id text PRIMARY KEY,
+            session_id text NOT NULL REFERENCES session(id) ON DELETE CASCADE
+          )
+        `)
+        yield* db.run(sql`INSERT INTO session VALUES ('ses_existing', 'Existing title')`)
+        yield* db.run(sql`INSERT INTO message VALUES ('msg_existing', 'ses_existing')`)
+
+        yield* DatabaseMigration.applyOnly(db, [optionalSessionTitleMigration])
+
+        expect(yield* db.get(sql`SELECT title FROM session WHERE id = 'ses_existing'`)).toEqual({
+          title: "Existing title",
+        })
+        expect(yield* db.get(sql`SELECT id FROM message WHERE id = 'msg_existing'`)).toEqual({ id: "msg_existing" })
+        expect(
+          yield* db.get<{ notnull: number }>(sql`SELECT "notnull" FROM pragma_table_info('session') WHERE name = 'title'`),
+        ).toEqual({ notnull: 0 })
+        expect(yield* db.get<{ foreign_keys: number }>(sql`PRAGMA foreign_keys`)).toEqual({ foreign_keys: 1 })
+      }),
+    )
+  })
+
   test("backfills existing Context Epoch rows to the build agent", async () => {
     await run(
       Effect.gen(function* () {

packages/core/test/filesystem/filesystem.test.ts

@@ -1,5 +1,5 @@
 import { describe, test, expect } from "bun:test"
-import { Effect, FileSystem } from "effect"
+import { Effect, FileSystem, Layer } from "effect"
 import { LayerNodePlatform } from "@opencode-ai/util/effect/app-node-platform"
 import { LayerNode } from "@opencode-ai/util/effect/layer-node"
 import { FSUtil } from "@opencode-ai/util/fs-util"
@@ -267,6 +267,33 @@ describe("FSUtil", () => {
         expect(result).toContain(path.join(tmp, "b.txt"))
       }),
     )
+
+    it(
+      "stops at the first match when requested",
+      Effect.gen(function* () {
+        const filesys = yield* FileSystem.FileSystem
+        const tmp = yield* filesys.makeTempDirectoryScoped()
+        yield* filesys.writeFileString(path.join(tmp, "marker"), "root")
+        const child = path.join(tmp, "sub")
+        yield* filesys.makeDirectory(child)
+        yield* filesys.writeFileString(path.join(child, "marker"), "child")
+        const checked: string[] = []
+        const instrumented = FileSystem.FileSystem.of({
+          ...filesys,
+          exists: (target) => Effect.sync(() => checked.push(target)).pipe(Effect.andThen(filesys.exists(target))),
+        })
+        const search = yield* FSUtil.Service.pipe(
+          Effect.provide(
+            FSUtil.layer.pipe(Layer.fresh, Layer.provide(Layer.succeed(FileSystem.FileSystem, instrumented))),
+          ),
+        )
+
+        expect(yield* search.up({ targets: ["marker", "other"], start: child, mode: "first" })).toEqual([
+          path.join(child, "marker"),
+        ])
+        expect(checked).toEqual([path.join(child, "marker")])
+      }),
+    )
   })
 
   describe("glob", () => {

packages/core/test/generate.test.ts

@@ -15,7 +15,7 @@ import { testEffect } from "./lib/effect"
 
 const selected = Info.make({
   ...Info.default(Provider.ID.make("test-provider"), ID.make("gemini")),
-  package: Provider.aisdk("@ai-sdk/google"),
+  package: Provider.aisdk("@ai-sdk/mistral"),
 })
 const runtime = Model.make({ id: "gemini", provider: "test-provider", route: OpenAIChat.route })
 

packages/core/test/mcp.test.ts

@@ -1,6 +1,7 @@
 import path from "node:path"
 import { describe, expect, test } from "bun:test"
 import { Client } from "@modelcontextprotocol/sdk/client/index.js"
+import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"
 import { InMemoryTransport } from "@modelcontextprotocol/sdk/inMemory.js"
 import { Server } from "@modelcontextprotocol/sdk/server/index.js"
 import { WebStandardStreamableHTTPServerTransport } from "@modelcontextprotocol/sdk/server/webStandardStreamableHttp.js"
@@ -559,6 +560,42 @@ test("lists, reads, and reports MCP resource changes", async () => {
   )
 })
 
+test("does not reconnect an SSE stream after a JSON-RPC error response", async () => {
+  let requests = 0
+  const transport = new StreamableHTTPClientTransport(new URL("http://mcp.invalid"), {
+    fetch: async () => {
+      requests += 1
+      return new Response(
+        new ReadableStream({
+          start(controller) {
+            controller.enqueue(new TextEncoder().encode("id: prime\nretry: 1\ndata:\n\n"))
+            controller.enqueue(
+              new TextEncoder().encode(
+                'id: error\ndata: {"jsonrpc":"2.0","error":{"code":-32601,"message":"Method not found"},"id":1}\n\n',
+              ),
+            )
+            controller.close()
+          },
+        }),
+        { status: 200, headers: { "content-type": "text/event-stream" } },
+      )
+    },
+    reconnectionOptions: {
+      initialReconnectionDelay: 1,
+      maxReconnectionDelay: 1,
+      reconnectionDelayGrowFactor: 1,
+      maxRetries: 2,
+    },
+  })
+
+  await transport.start()
+  await transport.send({ jsonrpc: "2.0", method: "resources/list", id: 1 })
+  await Bun.sleep(25)
+  await transport.close()
+
+  expect(requests).toBe(1)
+})
+
 test("skips MCP resource requests when the capability is absent", async () => {
   await Effect.runPromise(
     Effect.scoped(

packages/core/test/model-resolver.test.ts

@@ -17,6 +17,7 @@ interface ModelOptions {
   readonly headers?: Info["headers"]
   readonly body?: Info["body"]
   readonly variants?: Info["variants"]
+  readonly limit?: Info["limit"]
 }
 
 const model = (packageName: string | undefined, options: ModelOptions = {}) =>
@@ -36,7 +37,7 @@ const model = (packageName: string | undefined, options: ModelOptions = {}) =>
     cost: [],
     status: "active",
     enabled: true,
-    limit: { context: 100, output: 20 },
+    limit: options.limit ?? { context: 100, output: 20 },
   })
 
 describe("ModelResolver", () => {
@@ -44,6 +45,7 @@ describe("ModelResolver", () => {
     Effect.gen(function* () {
       const catalog = model(Provider.aisdk("@ai-sdk/openai"), {
         settings: { baseURL: "https://openai.example/v1" },
+        limit: { context: 100, input: 80, output: 20 },
       })
       const resolved = yield* ModelResolver.fromCatalogModel(catalog)
 
@@ -55,7 +57,7 @@ describe("ModelResolver", () => {
         endpoint: { baseURL: "https://openai.example/v1" },
         defaults: {
           headers: { "x-test": "header" },
-          limits: { context: 100, output: 20 },
+          limits: { context: 100, input: 80, output: 20 },
           http: { body: { custom_extension: { enabled: true } } },
         },
       })
@@ -307,12 +309,12 @@ describe("ModelResolver", () => {
     }),
   )
 
-  it.effect("routes ChatGPT OAuth credentials to the codex backend", () =>
+  it.effect("applies plugin-projected OpenAI endpoint and headers", () =>
     Effect.gen(function* () {
       const resolved = yield* ModelResolver.fromCatalogModel(
-        model(Provider.aisdk("@ai-sdk/openai"), {
-          settings: { baseURL: "https://openai.example/v1" },
-          headers: {},
+        model("@opencode-ai/ai/providers/openai", {
+          settings: { baseURL: "https://chatgpt.com/backend-api/codex" },
+          headers: { "chatgpt-account-id": "acct_123" },
           body: {},
         }),
         Credential.OAuth.make({
@@ -337,37 +339,8 @@ describe("ModelResolver", () => {
         id: "openai-responses",
         endpoint: { baseURL: "https://chatgpt.com/backend-api/codex" },
       })
+      expect(resolved.route.defaults.headers).toMatchObject({ "chatgpt-account-id": "acct_123" })
       expect(headers.authorization).toBe("Bearer chatgpt-token")
-      expect(headers["chatgpt-account-id"]).toBe("acct_123")
-    }),
-  )
-
-  it.effect("routes native OpenAI provider packages with ChatGPT credentials to the codex backend", () =>
-    Effect.gen(function* () {
-      const resolved = yield* ModelResolver.fromCatalogModel(
-        model("@opencode-ai/ai/providers/openai", {
-          settings: { baseURL: "https://openai.example/v1" },
-        }),
-        Credential.OAuth.make({
-          type: "oauth",
-          methodID: Integration.MethodID.make("chatgpt-browser"),
-          access: "chatgpt-token",
-          refresh: "refresh",
-          expires: Date.now() + 60_000,
-          metadata: { accountID: "acct_123" },
-        }),
-      )
-      const headers = yield* resolved.route.auth.apply({
-        request: LLM.request({ model: resolved, prompt: "Hello" }),
-        method: "POST",
-        url: "https://chatgpt.com/backend-api/codex/responses",
-        body: "{}",
-        headers: Headers.empty,
-      })
-
-      expect(resolved.route.endpoint.baseURL).toBe("https://chatgpt.com/backend-api/codex")
-      expect(headers.authorization).toBe("Bearer chatgpt-token")
-      expect(headers["chatgpt-account-id"]).toBe("acct_123")
     }),
   )
 
@@ -407,37 +380,6 @@ describe("ModelResolver", () => {
     }),
   )
 
-  it.effect("routes ChatGPT OAuth credentials without an account id to the codex backend", () =>
-    Effect.gen(function* () {
-      const resolved = yield* ModelResolver.fromCatalogModel(
-        model(Provider.aisdk("@ai-sdk/openai"), {
-          settings: { baseURL: "https://openai.example/v1" },
-          headers: {},
-          body: {},
-        }),
-        Credential.OAuth.make({
-          type: "oauth",
-          methodID: Integration.MethodID.make("chatgpt-headless"),
-          access: "chatgpt-token",
-          refresh: "refresh",
-          expires: Date.now() + 60_000,
-        }),
-      )
-      const request = LLM.request({ model: resolved, prompt: "Hello" })
-      const headers = yield* resolved.route.auth.apply({
-        request,
-        method: "POST",
-        url: "https://chatgpt.com/backend-api/codex/responses",
-        body: "{}",
-        headers: Headers.empty,
-      })
-
-      expect(resolved.route.endpoint.baseURL).toBe("https://chatgpt.com/backend-api/codex")
-      expect(headers.authorization).toBe("Bearer chatgpt-token")
-      expect(headers["chatgpt-account-id"]).toBeUndefined()
-    }),
-  )
-
   it.effect("keeps non-ChatGPT OAuth credentials on the configured endpoint", () =>
     Effect.gen(function* () {
       const resolved = yield* ModelResolver.fromCatalogModel(
@@ -546,6 +488,91 @@ describe("ModelResolver", () => {
     }),
   )
 
+  it.effect("routes supported AISDK catalog packages through native provider packages", () =>
+    Effect.gen(function* () {
+      const native = yield* ModelResolver.fromCatalogModel(model(Provider.aisdk("@ai-sdk/openai")))
+      const packages = [
+        [
+          "@ai-sdk/google",
+          "@opencode-ai/ai/providers/google",
+          { thinkingConfig: { thinkingLevel: "high" } },
+          { gemini: { thinkingConfig: { thinkingLevel: "high" } } },
+        ],
+        [
+          "@openrouter/ai-sdk-provider",
+          "@opencode-ai/ai/providers/openrouter",
+          { reasoning: { effort: "high" } },
+          { openrouter: { reasoning: { effort: "high" } } },
+        ],
+        [
+          "@ai-sdk/xai",
+          "@opencode-ai/ai/providers/xai",
+          { reasoningEffort: "high" },
+          { xai: { reasoningEffort: "high" } },
+        ],
+      ] as const
+
+      yield* Effect.forEach(packages, ([catalogPackage, nativePackage, sourceOptions, providerOptions]) =>
+        ModelResolver.fromCatalogModel(
+          model(Provider.aisdk(catalogPackage), {
+            modelID: "api-model",
+            settings: { baseURL: "https://provider.example/v1", ...sourceOptions },
+            headers: { "x-provider": "header" },
+            body: { custom: true },
+          }),
+          Credential.Key.make({ type: "key", key: "secret" }),
+          {
+            loadPackage: (specifier) => {
+              expect(specifier).toBe(nativePackage)
+              return Effect.succeed({
+                model: (modelID, settings) => {
+                  expect(modelID).toBe("api-model")
+                  expect(settings).toMatchObject({
+                    apiKey: "secret",
+                    baseURL: "https://provider.example/v1",
+                    headers: { "x-provider": "header" },
+                    body: { custom: true },
+                    limits: { context: 100, output: 20 },
+                    providerOptions,
+                  })
+                  return Model.make({ id: modelID, provider: "native-provider", route: native.route })
+                },
+              })
+            },
+            loadAISDK: () => Effect.die("AI SDK loader should not be called"),
+          },
+        ),
+      )
+    }),
+  )
+
+  it.effect("loads supported AISDK catalog packages as native routes", () =>
+    Effect.gen(function* () {
+      const google = yield* ModelResolver.fromCatalogModel(
+        model(Provider.aisdk("@ai-sdk/google"), { settings: { thinkingConfig: { thinkingBudget: 1_024 } } }),
+      )
+      const openrouter = yield* ModelResolver.fromCatalogModel(
+        model(Provider.aisdk("@openrouter/ai-sdk-provider"), {
+          settings: { reasoning: { effort: "high" } },
+        }),
+      )
+      const xai = yield* ModelResolver.fromCatalogModel(
+        model(Provider.aisdk("@ai-sdk/xai"), { settings: { reasoningEffort: "high" } }),
+      )
+
+      expect(google.route.id).toBe("gemini")
+      expect(google.route.defaults.providerOptions).toEqual({
+        gemini: { thinkingConfig: { thinkingBudget: 1_024 } },
+      })
+      expect(openrouter.route.id).toBe("openrouter")
+      expect(openrouter.route.defaults.providerOptions).toEqual({ openrouter: { reasoning: { effort: "high" } } })
+      expect(xai.route.id).toBe("openai-responses")
+      expect(xai.route.defaults.providerOptions).toEqual({
+        xai: { reasoningEffort: "high", store: false },
+      })
+    }),
+  )
+
   it.effect("loads arbitrary AISDK packages through the injected AISDK loader", () =>
     Effect.gen(function* () {
       const native = yield* ModelResolver.fromCatalogModel(
@@ -554,8 +581,8 @@ describe("ModelResolver", () => {
         }),
       )
       const resolved = yield* ModelResolver.fromCatalogModel(
-        model(Provider.aisdk("@ai-sdk/google"), {
-          modelID: "gemini-api-model",
+        model(Provider.aisdk("@ai-sdk/mistral"), {
+          modelID: "mistral-api-model",
           settings: { project: "test" },
           headers: { "x-aisdk": "header" },
           body: { custom: true },
@@ -566,9 +593,9 @@ describe("ModelResolver", () => {
             Effect.sync(() => {
               expect(runtime).toMatchObject({
                 id: "test-model",
-                modelID: "gemini-api-model",
+                modelID: "mistral-api-model",
                 providerID: "test-provider",
-                package: Provider.aisdk("@ai-sdk/google"),
+                package: Provider.aisdk("@ai-sdk/mistral"),
                 settings: { project: "test", apiKey: "fallback-secret" },
                 headers: { "x-aisdk": "header" },
                 body: { custom: true },
@@ -582,15 +609,15 @@ describe("ModelResolver", () => {
         },
       )
 
-      expect(resolved).toMatchObject({ id: "gemini-api-model", provider: "test-provider" })
+      expect(resolved).toMatchObject({ id: "mistral-api-model", provider: "test-provider" })
     }),
   )
 
   it.effect("rejects AISDK packages without an available loader", () =>
     Effect.gen(function* () {
       const failure = yield* ModelResolver.fromCatalogModel(
-        model(Provider.aisdk("@ai-sdk/google"), {
-          settings: { baseURL: "https://google.example/v1" },
+        model(Provider.aisdk("@ai-sdk/mistral"), {
+          settings: { baseURL: "https://mistral.example/v1" },
         }),
       ).pipe(Effect.flip)
 
@@ -598,9 +625,9 @@ describe("ModelResolver", () => {
         _tag: "SessionRunnerModel.UnsupportedPackageError",
         providerID: "test-provider",
         modelID: "test-model",
-        package: "aisdk:@ai-sdk/google",
+        package: "aisdk:@ai-sdk/mistral",
       })
-      expect(failure.message).toBe("Unsupported package for test-provider/test-model: aisdk:@ai-sdk/google")
+      expect(failure.message).toBe("Unsupported package for test-provider/test-model: aisdk:@ai-sdk/mistral")
     }),
   )
 
@@ -612,8 +639,8 @@ describe("ModelResolver", () => {
         }),
       )
       yield* ModelResolver.fromCatalogModel(
-        model(Provider.aisdk("@ai-sdk/google"), {
-          settings: { apiKey: "", baseURL: "https://google.example/v1" },
+        model(Provider.aisdk("@ai-sdk/mistral"), {
+          settings: { apiKey: "", baseURL: "https://mistral.example/v1" },
         }),
         undefined,
         {

packages/core/test/plugin/host.ts

@@ -103,11 +103,15 @@ export function host(overrides: Overrides = {}): Plugin.Context {
       hook: overrides.session?.hook ?? (() => Effect.die("unused session.hook")),
       create: overrides.session?.create ?? (() => Effect.die("unused session.create")),
       get: overrides.session?.get ?? (() => Effect.die("unused session.get")),
+      list: overrides.session?.list ?? (() => Effect.die("unused session.list")),
+      messages: overrides.session?.messages ?? (() => Effect.die("unused session.messages")),
       prompt: overrides.session?.prompt ?? (() => Effect.die("unused session.prompt")),
       generate: overrides.session?.generate ?? (() => Effect.die("unused session.generate")),
       command: overrides.session?.command ?? (() => Effect.die("unused session.command")),
+      rename: overrides.session?.rename ?? (() => Effect.die("unused session.rename")),
       synthetic: overrides.session?.synthetic ?? (() => Effect.die("unused session.synthetic")),
       interrupt: overrides.session?.interrupt ?? (() => Effect.die("unused session.interrupt")),
+      wait: overrides.session?.wait ?? (() => Effect.die("unused session.wait")),
     },
   }
 }

packages/core/test/plugin/provider-openai.test.ts

@@ -1,7 +1,7 @@
-import { AISDK } from "@opencode-ai/core/aisdk"
 import { Money } from "@opencode-ai/schema/money"
+import { Agent } from "@opencode-ai/schema/agent"
+import { Session } from "@opencode-ai/schema/session"
 import { describe, expect } from "bun:test"
-import type { LanguageModelV3 } from "@ai-sdk/provider"
 import { Effect } from "effect"
 import { Catalog } from "@opencode-ai/core/catalog"
 import { Credential } from "@opencode-ai/core/credential"
@@ -9,6 +9,7 @@ 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 { PluginHooks } from "@opencode-ai/core/plugin/hooks"
 import { OpenAIPlugin } from "@opencode-ai/core/plugin/provider/openai"
 import { Provider } from "@opencode-ai/core/provider"
 import { testEffect } from "../lib/effect"
@@ -18,7 +19,6 @@ 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)
   const integrations = yield* Integration.Service
   yield* OpenAIPlugin.effect(host).pipe(Effect.provideService(Integration.Service, integrations))
@@ -29,19 +29,6 @@ function required<T>(value: T | undefined): T {
   return value
 }
 
-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("OpenAIPlugin", () => {
   it.effect("registers browser and headless ChatGPT OAuth methods", () =>
     Effect.gen(function* () {
@@ -61,104 +48,6 @@ describe("OpenAIPlugin", () => {
     }),
   )
 
-  it.effect("creates an OpenAI SDK for @ai-sdk/openai 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-openai"), Model.ID.make("gpt-5")),
-          modelID: Model.ID.make("gpt-5"),
-          package: Provider.aisdk("test-provider"),
-        }),
-        package: "@ai-sdk/openai",
-        options: { name: "custom-openai", apiKey: "test" },
-      })
-      expect(result.sdk?.responses("gpt-5").provider).toBe("custom-openai.responses")
-    }),
-  )
-
-  it.effect("ignores non-OpenAI 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.openai, Model.ID.make("gpt-5")),
-          modelID: Model.ID.make("gpt-5"),
-          package: Provider.aisdk("test-provider"),
-        }),
-        package: "@ai-sdk/openai-compatible",
-        options: { name: "openai" },
-      })
-      expect(result.sdk).toBeUndefined()
-    }),
-  )
-
-  it.effect("uses the Responses API for language models", () =>
-    Effect.gen(function* () {
-      const plugin = yield* Plugin.Service
-      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("alias")),
-          modelID: Model.ID.make("gpt-5"),
-          package: Provider.aisdk("test-provider"),
-        }),
-        sdk: fakeSelectorSdk(calls),
-        options: {},
-      })
-      expect(calls).toEqual(["responses:gpt-5"])
-      expect(result.language).toBeDefined()
-    }),
-  )
-
-  it.effect("ignores non-OpenAI providers", () =>
-    Effect.gen(function* () {
-      const plugin = yield* Plugin.Service
-      const aisdk = yield* AISDK.Service
-      const calls: string[] = []
-      yield* addPlugin()
-      const result = yield* aisdk.runLanguage({
-        model: Model.Info.make({
-          ...Model.Info.default(Provider.ID.anthropic, Model.ID.make("gpt-5")),
-          modelID: Model.ID.make("gpt-5"),
-          package: Provider.aisdk("test-provider"),
-        }),
-        sdk: fakeSelectorSdk(calls),
-        options: {},
-      })
-      expect(calls).toEqual([])
-      expect(result.language).toBeUndefined()
-    }),
-  )
-
-  it.effect("disables gpt-5-chat-latest during catalog transforms", () =>
-    Effect.gen(function* () {
-      const catalog = yield* Catalog.Service
-      yield* catalog.transform((catalog) => {
-        const item = Provider.Info.make({
-          ...Provider.Info.empty(Provider.ID.openai),
-          package: Provider.aisdk("@ai-sdk/openai"),
-        })
-        catalog.provider.update(item.id, (draft) => {
-          draft.package = item.package
-        })
-        catalog.model.update(item.id, Model.ID.make("gpt-5"), () => {})
-        catalog.model.update(item.id, Model.ID.make("gpt-5-chat-latest"), () => {})
-      })
-      yield* addPlugin()
-      expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5"))).enabled).toBe(true)
-      expect(
-        required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5-chat-latest"))).enabled,
-      ).toBe(false)
-    }),
-  )
-
   it.effect("filters the OpenAI catalog to codex-eligible models under a ChatGPT connection", () =>
     Effect.gen(function* () {
       const catalog = yield* Catalog.Service
@@ -172,6 +61,7 @@ describe("OpenAIPlugin", () => {
           draft.package = item.package
         })
         catalog.model.update(item.id, Model.ID.make("gpt-5.5"), (model) => {
+          model.limit = { context: 1_050_000, input: 922_000, output: 128_000 }
           model.cost = [
             {
               input: Money.USDPerMillionTokens.make(1),
@@ -184,12 +74,17 @@ describe("OpenAIPlugin", () => {
           ]
         })
         catalog.model.update(item.id, Model.ID.make("gpt-5.5-pro"), () => {})
+        catalog.model.update(item.id, Model.ID.make("gpt-5.4"), (model) => {
+          model.limit = { context: 1_050_000, input: 922_000, output: 64_000 }
+        })
         catalog.model.update(item.id, Model.ID.make("gpt-5.4-pro"), (model) => {
           model.modelID = Model.ID.make("gpt-5.4")
           model.body = { reasoning: { mode: "pro" } }
         })
         catalog.model.update(item.id, Model.ID.make("gpt-5.6"), () => {})
-        catalog.model.update(item.id, Model.ID.make("gpt-5.6-sol"), () => {})
+        catalog.model.update(item.id, Model.ID.make("gpt-5.6-sol"), (model) => {
+          model.limit = { context: 1_050_000, input: 922_000, output: 128_000 }
+        })
         catalog.model.update(item.id, Model.ID.make("gpt-4.1"), () => {})
       })
       yield* credentials.create({
@@ -205,8 +100,47 @@ describe("OpenAIPlugin", () => {
       })
       yield* addPlugin()
 
+      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")
+      expect(provider.settings).toMatchObject({ baseURL: "https://chatgpt.com/backend-api/codex" })
+      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).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")))
+      expect(eligible.package).toBe("@opencode-ai/ai/providers/openai")
       expect(eligible.cost).toEqual([])
+      expect(eligible.limit).toEqual({ context: 272_000, input: 272_000, output: 128_000 })
       expect(eligible.enabled).toBe(true)
       expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5.5-pro"))).enabled).toBe(
         false,
@@ -214,10 +148,15 @@ describe("OpenAIPlugin", () => {
       expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5.4-pro"))).enabled).toBe(
         false,
       )
+      expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5.4"))).limit).toEqual({
+        context: 272_000,
+        input: 272_000,
+        output: 64_000,
+      })
       expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5.6"))).enabled).toBe(false)
-      expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5.6-sol"))).enabled).toBe(
-        true,
-      )
+      const gpt56 = required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5.6-sol")))
+      expect(gpt56.enabled).toBe(true)
+      expect(gpt56.limit).toEqual({ context: 272_000, input: 272_000, output: 128_000 })
       expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-4.1"))).enabled).toBe(false)
     }),
   )
@@ -234,7 +173,9 @@ describe("OpenAIPlugin", () => {
         catalog.provider.update(item.id, (draft) => {
           draft.package = item.package
         })
-        catalog.model.update(item.id, Model.ID.make("gpt-5.5"), () => {})
+        catalog.model.update(item.id, Model.ID.make("gpt-5.5"), (model) => {
+          model.limit = { context: 1_050_000, input: 922_000, output: 128_000 }
+        })
         catalog.model.update(item.id, Model.ID.make("gpt-4.1"), () => {})
       })
       yield* credentials.create({
@@ -243,29 +184,23 @@ describe("OpenAIPlugin", () => {
       })
       yield* addPlugin()
 
-      expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-5.5"))).enabled).toBe(true)
+      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).toEqual({})
       expect(required(yield* catalog.model.get(Provider.ID.openai, Model.ID.make("gpt-4.1"))).enabled).toBe(true)
     }),
   )
 
-  it.effect("does not disable gpt-5-chat-latest for non-OpenAI providers", () =>
-    Effect.gen(function* () {
-      const catalog = yield* Catalog.Service
-      yield* catalog.transform((catalog) => {
-        const item = Provider.Info.make({
-          ...Provider.Info.empty(Provider.ID.make("custom-openai")),
-          package: Provider.aisdk("test-provider"),
-        })
-        catalog.provider.update(item.id, (draft) => {
-          draft.package = item.package
-        })
-        catalog.model.update(item.id, Model.ID.make("gpt-5-chat-latest"), () => {})
-      })
-      yield* addPlugin()
-      expect(
-        required(yield* catalog.model.get(Provider.ID.make("custom-openai"), Model.ID.make("gpt-5-chat-latest")))
-          .enabled,
-      ).toBe(true)
-    }),
-  )
 })

packages/core/test/project.test.ts

@@ -143,6 +143,7 @@ describe("Project.resolve", () => {
 
       expect(result.id).toBe(Project.ID.make(yield* Effect.promise(() => rootCommit(tmp.path))))
       expect(result.directory).toBe(yield* real(tmp.path))
+      expect(result.canonical).toBe(result.directory)
       expect(result.previous).toBeUndefined()
       expect(result.vcs?.type).toBe("git")
     }),

packages/core/test/session-compaction.test.ts

@@ -19,9 +19,11 @@ import { Session } from "@opencode-ai/core/session"
 import { Project } from "@opencode-ai/core/project"
 import { ProjectTable } from "@opencode-ai/core/project/sql"
 import { App } from "@opencode-ai/core/app"
+import { Agent } from "@opencode-ai/core/agent"
+import { Location } from "@opencode-ai/core/location"
 import { AbsolutePath } from "@opencode-ai/core/schema"
 import { Money } from "@opencode-ai/schema/money"
-import { DateTime, Effect, Fiber, Layer, Stream } from "effect"
+import { DateTime, Effect, Fiber, Layer, Schema, Stream } from "effect"
 import { asc, eq } from "drizzle-orm"
 import { testEffect } from "./lib/effect"
 
@@ -130,6 +132,52 @@ test("compaction prompt requires the checkpoint headings in order", () => {
   expect(prompt).toContain("Keep every section, even when empty.")
 })
 
+it.effect("auto compaction reserves a buffer below the prompt ceiling", () =>
+  Effect.gen(function* () {
+    const compaction = yield* SessionCompaction.Service
+    const session = Session.Info.make({
+      id: Session.ID.make("ses_input_limit"),
+      projectID: Project.ID.global,
+      cost: Money.USD.zero,
+      tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+      time: { created: DateTime.makeUnsafe(0), updated: DateTime.makeUnsafe(0) },
+      location: Location.Ref.make({ directory: AbsolutePath.make("/tmp") }),
+    })
+    const input = (tokens: number, limits: { context: number; input?: number; output: number }) => ({
+      session,
+      model: Model.make({
+        id: "test-model",
+        provider: "test-provider",
+        route: OpenAIChat.route.with({ limits }),
+      }),
+      cost: [],
+      messages: [
+        Schema.decodeUnknownSync(SessionMessage.Assistant)({
+          id: SessionMessage.ID.make("msg_assistant"),
+          type: "assistant",
+          agent: Agent.defaultID,
+          model: { id: "test-model", providerID: "test-provider" },
+          content: [],
+          tokens: { input: tokens, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+          time: { created: 0, completed: 0 },
+        }),
+      ],
+    })
+
+    const inputLimited = { context: 400_000, input: 272_000, output: 128_000 }
+    expect(compaction.required(input(251_999, inputLimited))).toBe(false)
+    expect(compaction.required(input(252_000, inputLimited))).toBe(true)
+
+    const contextLimited = { context: 100_000, output: 10_000 }
+    expect(compaction.required(input(79_999, contextLimited))).toBe(false)
+    expect(compaction.required(input(80_000, contextLimited))).toBe(true)
+
+    const outputLimited = { context: 100_000, output: 30_000 }
+    expect(compaction.required(input(69_999, outputLimited))).toBe(false)
+    expect(compaction.required(input(70_000, outputLimited))).toBe(true)
+  }),
+)
+
 it.effect("manual compaction summarizes short context instead of no-op", () =>
   Effect.gen(function* () {
     requests = []

packages/core/test/session-create.test.ts

@@ -71,6 +71,27 @@ function withTmp<A, E, R>(f: (directory: string) => Effect.Effect<A, E, R>) {
 }
 
 describe("Session.create", () => {
+  it.effect("persists a missing title until one is generated or supplied", () =>
+    Effect.gen(function* () {
+      const session = yield* Session.Service
+      const { db } = yield* Database.Service
+
+      const created = yield* session.create({ location })
+      const row = yield* db.select().from(SessionTable).where(eq(SessionTable.id, created.id)).get().pipe(Effect.orDie)
+      const event = yield* db
+        .select({ data: EventTable.data })
+        .from(EventTable)
+        .where(eq(EventTable.aggregate_id, created.id))
+        .get()
+        .pipe(Effect.orDie)
+
+      expect(created.title).toBeUndefined()
+      expect(row?.title).toBeNull()
+      expect(event?.data).not.toHaveProperty("info.title")
+      expect((yield* session.create({ location, title: "Explicit title" })).title).toBe("Explicit title")
+    }),
+  )
+
   it.effect("creates a fresh projected session when the ID is omitted", () =>
     Effect.gen(function* () {
       const session = yield* Session.Service
@@ -171,6 +192,30 @@ describe("Session.create", () => {
     }),
   )
 
+  it.effect("orders sessions by their latest prompt", () =>
+    Effect.gen(function* () {
+      const session = yield* Session.Service
+      const { db } = yield* Database.Service
+      const active = yield* session.create({ location, title: "active" })
+      const newer = yield* session.create({ location, title: "newer" })
+
+      yield* db
+        .update(SessionTable)
+        .set({ time_created: -2, time_updated: -2 })
+        .where(eq(SessionTable.id, active.id))
+        .run()
+      yield* db
+        .update(SessionTable)
+        .set({ time_created: -1, time_updated: -1 })
+        .where(eq(SessionTable.id, newer.id))
+        .run()
+
+      yield* session.prompt({ sessionID: active.id, text: "continue", resume: false })
+
+      expect((yield* session.list()).data.map((item) => item.id)).toEqual([active.id, newer.id])
+    }),
+  )
+
   it.effect("filters direct child sessions by parent ID", () =>
     Effect.gen(function* () {
       const session = yield* Session.Service
@@ -272,6 +317,23 @@ describe("Session.create", () => {
     }),
   )
 
+  it.effect("keeps a fork untitled when its parent is untitled", () =>
+    Effect.gen(function* () {
+      const session = yield* Session.Service
+      const bus = yield* Bus.Service
+      const { db } = yield* Database.Service
+      const parent = yield* session.create({ location })
+      yield* session.prompt({ sessionID: parent.id, text: "First", resume: false })
+      yield* SessionPending.promote(db, bus, parent.id, "steer")
+
+      const forked = yield* session.fork({ sessionID: parent.id, boundary: { type: "through" } })
+      const row = yield* db.select().from(SessionTable).where(eq(SessionTable.id, forked.id)).get().pipe(Effect.orDie)
+
+      expect(forked.title).toBeUndefined()
+      expect(row?.title).toBeNull()
+    }),
+  )
+
   it.effect("rejects forking an empty session", () =>
     Effect.gen(function* () {
       const session = yield* Session.Service

packages/core/test/session-runner.test.ts

@@ -796,6 +796,59 @@ const verifyPartialFlushOnInterruption = (kind: FragmentKind) =>
   })
 
 describe("SessionRunnerLLM", () => {
+  it.effect("retries title generation from the first prompt after execution and title failures", () =>
+    Effect.gen(function* () {
+      const session = yield* setup
+      const agents = yield* Agent.Service
+      const { db } = yield* Database.Service
+      yield* db.update(SessionTable).set({ title: null }).where(eq(SessionTable.id, sessionID)).run().pipe(Effect.orDie)
+      yield* agents.transform((draft) =>
+        draft.update(Agent.ID.make("title"), (agent) => {
+          agent.mode = "primary"
+          agent.hidden = true
+          agent.system = "Generate a title."
+        }),
+      )
+
+      yield* admit(session, "First prompt")
+      yield* TestLLM.push(Stream.fail(invalidRequest()))
+      expect((yield* session.resume(sessionID).pipe(Effect.exit))._tag).toBe("Failure")
+
+      yield* admit(session, "Second prompt")
+      const titleFailed = yield* Deferred.make<void>()
+      yield* TestLLM.push(
+        TestLLM.text("Recovered", "text-recovered"),
+        Stream.make(LLMEvent.providerError({ message: "Title provider unavailable" })).pipe(
+          Stream.ensuring(Deferred.succeed(titleFailed, undefined)),
+        ),
+      )
+      yield* session.resume(sessionID)
+      yield* Deferred.await(titleFailed)
+      yield* Effect.yieldNow
+      expect((yield* session.get(sessionID)).title).toBeUndefined()
+
+      const bus = yield* Bus.Service
+      const renamed = yield* bus.subscribe(SessionEvent.Renamed).pipe(
+        Stream.filter((event) => event.data.sessionID === sessionID),
+        Stream.take(1),
+        Stream.runCollect,
+        Effect.forkScoped({ startImmediately: true }),
+      )
+      yield* admit(session, "Third prompt")
+      yield* TestLLM.push(
+        TestLLM.text("Recovered again", "text-recovered-again"),
+        TestLLM.text("Generated title", "text-title"),
+      )
+      yield* session.resume(sessionID)
+      yield* Fiber.join(renamed)
+
+      expect(requests).toHaveLength(5)
+      expect(requests[2]?.messages).toContainEqual(Message.user("First prompt"))
+      expect(requests[4]?.messages).toContainEqual(Message.user("First prompt"))
+      expect((yield* session.get(sessionID)).title).toBe("Generated title")
+    }),
+  )
+
   it.effect("applies session context hooks without exposing unavailable tools", () =>
     Effect.gen(function* () {
       const session = yield* setup

packages/core/test/session-title.test.ts

@@ -20,7 +20,7 @@ import { ProjectTable } from "@opencode-ai/core/project/sql"
 import { App } from "@opencode-ai/core/app"
 import { AbsolutePath } from "@opencode-ai/core/schema"
 import { Money } from "@opencode-ai/schema/money"
-import { Effect, Layer, Stream } from "effect"
+import { Deferred, Effect, Fiber, Layer, Stream } from "effect"
 import { testEffect } from "./lib/effect"
 
 let requests: LLMRequest[] = []
@@ -39,27 +39,30 @@ const cost = [
     },
   },
 ]
+const successfulTitle = () =>
+  Stream.make(
+    LLMEvent.textDelta({ id: "title", text: "Generated Title\n" }),
+    LLMEvent.stepFinish({
+      index: 0,
+      reason: { normalized: "stop" },
+      usage: {
+        inputTokens: 15,
+        outputTokens: 6,
+        nonCachedInputTokens: 10,
+        cacheReadInputTokens: 3,
+        cacheWriteInputTokens: 2,
+        reasoningTokens: 2,
+      },
+    }),
+    LLMEvent.finish({
+      reason: { normalized: "stop" },
+    }),
+  )
+let titleStream: () => Stream.Stream<LLMEvent> = successfulTitle
 const client = Layer.mock(LLMClient.Service)({
   stream: (request: LLMRequest) => {
     requests.push(request)
-    return Stream.make(
-      LLMEvent.textDelta({ id: "title", text: "Generated Title\n" }),
-      LLMEvent.stepFinish({
-        index: 0,
-        reason: { normalized: "stop" },
-        usage: {
-          inputTokens: 15,
-          outputTokens: 6,
-          nonCachedInputTokens: 10,
-          cacheReadInputTokens: 3,
-          cacheWriteInputTokens: 2,
-          reasoningTokens: 2,
-        },
-      }),
-      LLMEvent.finish({
-        reason: { normalized: "stop" },
-      }),
-    )
+    return titleStream()
   },
   generate: () => Effect.die("unused"),
 })
@@ -89,7 +92,7 @@ const it = testEffect(
   ),
 )
 
-const insertSession = (id: Session.ID) =>
+const insertSession = (id: Session.ID, title?: string, created?: number) =>
   Effect.gen(function* () {
     const { db } = yield* Database.Service
     yield* db
@@ -105,7 +108,8 @@ const insertSession = (id: Session.ID) =>
         project_id: Project.ID.global,
         slug: id,
         directory: "/project",
-        title: "New session - fake",
+        title,
+        time_created: created,
         version: "test",
       })
       .onConflictDoNothing()
@@ -131,6 +135,7 @@ const prompt = (sessionID: Session.ID, text: string) =>
 it.effect("generates a title from the sole user message and renames the session", () =>
   Effect.gen(function* () {
     requests = []
+    titleStream = successfulTitle
     const agentService = yield* Agent.Service
     yield* agentService.transform((editor) => {
       editor.update(Agent.ID.make("title"), (agent) => {
@@ -144,11 +149,8 @@ it.effect("generates a title from the sole user message and renames the session"
     yield* prompt(sessionID, "Help me debug the failing build")
 
     const store = yield* SessionStore.Service
-    const session = yield* store
-      .get(sessionID)
-      .pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
     const title = yield* SessionTitle.Service
-    yield* title.generateForFirstPrompt(session)
+    yield* title.generateForFirstPrompt(sessionID)
 
     expect(requests).toHaveLength(1)
     expect(requests[0]?.http?.headers).toEqual({
@@ -167,9 +169,10 @@ it.effect("generates a title from the sole user message and renames the session"
   }),
 )
 
-it.effect("does not generate once a second user message exists", () =>
+it.effect("generates from the first user message after later messages exist", () =>
   Effect.gen(function* () {
     requests = []
+    titleStream = successfulTitle
     const agentService = yield* Agent.Service
     yield* agentService.transform((editor) => {
       editor.update(Agent.ID.make("title"), (agent) => {
@@ -184,21 +187,46 @@ it.effect("does not generate once a second user message exists", () =>
     yield* prompt(sessionID, "Second message")
 
     const store = yield* SessionStore.Service
-    const session = yield* store
-      .get(sessionID)
-      .pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
     const title = yield* SessionTitle.Service
-    yield* title.generateForFirstPrompt(session)
+    yield* title.generateForFirstPrompt(sessionID)
 
-    expect(requests).toHaveLength(0)
-    const untouched = yield* store.get(sessionID)
-    expect(untouched?.title).toBe("New session - fake")
+    expect(requests).toHaveLength(1)
+    expect(JSON.stringify(requests[0]?.messages)).toContain("First message")
+    expect(JSON.stringify(requests[0]?.messages)).not.toContain("Second message")
+    expect((yield* store.get(sessionID))?.title).toBe("Generated Title")
+  }),
+)
+
+it.effect("retries a legacy persisted fallback title", () =>
+  Effect.gen(function* () {
+    requests = []
+    titleStream = successfulTitle
+    const agentService = yield* Agent.Service
+    yield* agentService.transform((editor) => {
+      editor.update(Agent.ID.make("title"), (agent) => {
+        agent.mode = "primary"
+        agent.hidden = true
+        agent.system = "You are a title generator."
+      })
+    })
+    const sessionID = Session.ID.make("ses_title_legacy")
+    const created = Date.parse("2026-07-30T18:45:03.662Z")
+    yield* insertSession(sessionID, "New session - 2026-07-30T18:45:03.662Z", created)
+    yield* prompt(sessionID, "Retry the legacy title")
+
+    const title = yield* SessionTitle.Service
+    yield* title.generateForFirstPrompt(sessionID)
+
+    const store = yield* SessionStore.Service
+    expect(requests).toHaveLength(1)
+    expect((yield* store.get(sessionID))?.title).toBe("Generated Title")
   }),
 )
 
 it.effect("does not generate for a child session", () =>
   Effect.gen(function* () {
     requests = []
+    titleStream = successfulTitle
     const agentService = yield* Agent.Service
     yield* agentService.transform((editor) => {
       editor.update(Agent.ID.make("title"), (agent) => {
@@ -223,7 +251,6 @@ it.effect("does not generate for a child session", () =>
         parent_id: Session.ID.make("ses_title_parent"),
         slug: sessionID,
         directory: "/project",
-        title: "Child session - fake",
         version: "test",
       })
       .onConflictDoNothing()
@@ -231,12 +258,8 @@ it.effect("does not generate for a child session", () =>
       .pipe(Effect.orDie)
     yield* prompt(sessionID, "Do this subtask")
 
-    const store = yield* SessionStore.Service
-    const session = yield* store
-      .get(sessionID)
-      .pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
     const title = yield* SessionTitle.Service
-    yield* title.generateForFirstPrompt(session)
+    yield* title.generateForFirstPrompt(sessionID)
 
     expect(requests).toHaveLength(0)
   }),
@@ -245,19 +268,100 @@ it.effect("does not generate for a child session", () =>
 it.effect("does not generate when the title agent is removed", () =>
   Effect.gen(function* () {
     requests = []
+    titleStream = successfulTitle
     const sessionID = Session.ID.make("ses_title_no_agent")
     yield* insertSession(sessionID)
     yield* prompt(sessionID, "Help me debug the failing build")
 
     const store = yield* SessionStore.Service
-    const session = yield* store
-      .get(sessionID)
-      .pipe(Effect.flatMap((session) => (session ? Effect.succeed(session) : Effect.die("session missing"))))
     const title = yield* SessionTitle.Service
-    yield* title.generateForFirstPrompt(session)
+    yield* title.generateForFirstPrompt(sessionID)
 
     expect(requests).toHaveLength(0)
     const untouched = yield* store.get(sessionID)
-    expect(untouched?.title).toBe("New session - fake")
+    expect(untouched?.title).toBeUndefined()
+  }),
+)
+
+it.effect("does not overwrite an explicit title", () =>
+  Effect.gen(function* () {
+    requests = []
+    titleStream = successfulTitle
+    const sessionID = Session.ID.make("ses_title_explicit")
+    yield* insertSession(sessionID)
+    yield* prompt(sessionID, "Help me debug the failing build")
+    const events = yield* Bus.Service
+    yield* events.publish(SessionEvent.Renamed, { sessionID, title: "New session - 2099-01-01T00:00:00.000Z" })
+
+    const title = yield* SessionTitle.Service
+    yield* title.generateForFirstPrompt(sessionID)
+
+    const store = yield* SessionStore.Service
+    expect(requests).toHaveLength(0)
+    expect((yield* store.get(sessionID))?.title).toBe("New session - 2099-01-01T00:00:00.000Z")
+  }),
+)
+
+it.effect("retries after a failed title request", () =>
+  Effect.gen(function* () {
+    requests = []
+    const agentService = yield* Agent.Service
+    yield* agentService.transform((editor) => {
+      editor.update(Agent.ID.make("title"), (agent) => {
+        agent.mode = "primary"
+        agent.hidden = true
+        agent.system = "You are a title generator."
+      })
+    })
+    const sessionID = Session.ID.make("ses_title_retry")
+    yield* insertSession(sessionID)
+    yield* prompt(sessionID, "Retry this title")
+    const title = yield* SessionTitle.Service
+    titleStream = () => Stream.make(LLMEvent.providerError({ message: "Provider unavailable" }))
+
+    yield* title.generateForFirstPrompt(sessionID)
+    titleStream = successfulTitle
+    yield* title.generateForFirstPrompt(sessionID)
+
+    const store = yield* SessionStore.Service
+    expect(requests).toHaveLength(2)
+    expect((yield* store.get(sessionID))?.title).toBe("Generated Title")
+  }),
+)
+
+it.effect("preserves a manual rename completed while generation is in flight", () =>
+  Effect.gen(function* () {
+    requests = []
+    const agentService = yield* Agent.Service
+    yield* agentService.transform((editor) => {
+      editor.update(Agent.ID.make("title"), (agent) => {
+        agent.mode = "primary"
+        agent.hidden = true
+        agent.system = "You are a title generator."
+      })
+    })
+    const sessionID = Session.ID.make("ses_title_manual_rename")
+    yield* insertSession(sessionID)
+    yield* prompt(sessionID, "Generate this title")
+    const started = yield* Deferred.make<void>()
+    const release = yield* Deferred.make<void>()
+    titleStream = () =>
+      Stream.unwrap(
+        Deferred.succeed(started, undefined).pipe(
+          Effect.andThen(Deferred.await(release)),
+          Effect.as(successfulTitle()),
+        ),
+      )
+    const title = yield* SessionTitle.Service
+    const fiber = yield* title.generateForFirstPrompt(sessionID).pipe(Effect.forkScoped)
+    yield* Deferred.await(started)
+    const events = yield* Bus.Service
+    yield* events.publish(SessionEvent.Renamed, { sessionID, title: "Manual title" })
+    yield* Deferred.succeed(release, undefined)
+    yield* Fiber.join(fiber)
+
+    const store = yield* SessionStore.Service
+    expect(requests).toHaveLength(1)
+    expect((yield* store.get(sessionID))?.title).toBe("Manual title")
   }),
 )

packages/core/test/tool-subagent.test.ts

@@ -47,7 +47,7 @@ const executionNode = makeGlobalNode({
       const completed = new Set<Session.ID>()
       const complete = Effect.fn("SubagentTest.complete")(function* (sessionID: Session.ID) {
         if (completed.has(sessionID)) return
-        if ((yield* store.get(sessionID))?.title.includes("fail")) {
+        if ((yield* store.get(sessionID))?.title?.includes("fail")) {
           yield* new SessionRunnerModel.ModelNotSelectedError({ sessionID })
           return
         }

packages/enterprise/package.json

@@ -16,6 +16,7 @@
     "@opencode-ai/core": "workspace:*",
     "@opencode-ai/session-ui": "workspace:*",
     "@opencode-ai/ui": "workspace:*",
+    "@opencode-ai/util": "workspace:*",
     "aws4fetch": "^1.0.20",
     "@pierre/diffs": "catalog:",
     "@solidjs/router": "catalog:",

packages/enterprise/src/routes/share/[shareID].tsx

@@ -4,6 +4,7 @@ import { SessionReview } from "@opencode-ai/session-ui/session-review"
 import { DataProvider } from "@opencode-ai/session-ui/context"
 import { FileComponentProvider } from "@opencode-ai/ui/context/file"
 import { WorkerPoolProvider } from "@opencode-ai/ui/context/worker-pool"
+import { withTimestampedFallback } from "@opencode-ai/util/session-title-fallback"
 import { createAsync, query, useParams } from "@solidjs/router"
 import { createMemo, createSignal, ErrorBoundary, For, Match, Show, Switch } from "solid-js"
 import { Share } from "~/core/share"
@@ -158,6 +159,7 @@ export default function () {
           const match = createMemo(() => Binary.search(data().session, data().sessionID, (s) => s.id))
           if (!match().found) throw new Error(`Session ${data().sessionID} not found`)
           const info = createMemo(() => data().session[match().index])
+          const title = createMemo(() => withTimestampedFallback(info()))
           const ogImage = createMemo(() => {
             const models = new Set<string>()
             const messages = data().message[data().sessionID] ?? []
@@ -167,7 +169,7 @@ export default function () {
               }
             }
             const modelIDs = Array.from(models)
-            const encodedTitle = encodeURIComponent(Base64.encode(encodeURIComponent(info().title.substring(0, 700))))
+            const encodedTitle = encodeURIComponent(Base64.encode(encodeURIComponent(title().substring(0, 700))))
             let modelParam: string
             if (modelIDs.length === 1) {
               modelParam = modelIDs[0]
@@ -184,9 +186,7 @@ export default function () {
 
           return (
             <>
-              <Show when={info().title}>
-                <Title>{info().title} | OpenCode</Title>
-              </Show>
+              <Title>{title()} | OpenCode</Title>
               <Meta name="description" content="opencode - The AI coding agent built for the terminal." />
               <Meta property="og:image" content={ogImage()} />
               <Meta name="twitter:image" content={ogImage()} />
@@ -240,7 +240,7 @@ export default function () {
                               </div>
                             </div>
                           </div>
-                          <div class="text-left text-16-medium text-text-strong">{info().title}</div>
+                          <div class="text-left text-16-medium text-text-strong">{title()}</div>
                         </div>
                       )
 

packages/plugin/src/effect/session.ts

@@ -1,5 +1,6 @@
-import type { SessionApi } from "@opencode-ai/client/effect/api"
+import type { MessageApi, 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"
@@ -15,13 +16,22 @@ export interface SessionContext {
   tools: Record<string, { description: string; input: JsonSchema.JsonSchema }>
 }
 
+export interface SessionRequest extends HttpRequest {
+  readonly sessionID: Session.ID
+  readonly agent: Agent.ID
+  readonly model: Model.Ref
+}
+
 export interface SessionHooks {
   readonly context: SessionContext
+  readonly request: SessionRequest
 }
 
 export type SessionDomain = Pick<
   SessionApi<unknown>,
-  "create" | "get" | "prompt" | "generate" | "command" | "synthetic" | "interrupt"
+  "create" | "get" | "list" | "prompt" | "generate" | "command" | "synthetic" | "interrupt" | "rename" | "wait"
 > & {
   readonly hook: Hooks<SessionHooks>
+  /** Read a session's projected message history, paginated like the HTTP message list endpoint. */
+  readonly messages: MessageApi<unknown>["list"]
 }

packages/plugin/src/promise/session.ts

@@ -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"
@@ -15,8 +16,15 @@ export interface SessionContext {
   tools: Record<string, { description: string; input: JsonSchema.JsonSchema }>
 }
 
+export interface SessionRequest extends HttpRequest {
+  readonly sessionID: Session.ID
+  readonly agent: Agent.ID
+  readonly model: Model.Ref
+}
+
 export interface SessionHooks {
   readonly context: SessionContext
+  readonly request: SessionRequest
 }
 
 export type SessionDomain = Pick<

packages/protocol/src/groups/session.ts

@@ -4,7 +4,8 @@ import { PromptInput } from "@opencode-ai/schema/prompt-input"
 import { Session } from "@opencode-ai/schema/session"
 import { InstructionEntry } from "@opencode-ai/schema/instruction-entry"
 import { Project } from "@opencode-ai/schema/project"
-import { AbsolutePath, PositiveInt, RelativePath, statics } from "@opencode-ai/schema/schema"
+import { AbsolutePath, PositiveInt, RelativePath } from "@opencode-ai/schema/schema"
+import { SessionsQuery } from "@opencode-ai/schema/sessions-query"
 import { Event } from "@opencode-ai/schema/event"
 import { Workspace } from "@opencode-ai/schema/workspace"
 import { Context, Effect, Encoding, Result, Schema, SchemaGetter, Struct } from "effect"
@@ -29,76 +30,6 @@ import { Location } from "@opencode-ai/schema/location"
 import { SessionEvent } from "@opencode-ai/schema/session-event"
 import { EventLog } from "@opencode-ai/schema/event-log"
 
-const ParentIDFilter = Schema.Union([
-  Session.ID,
-  Schema.Null.pipe(
-    Schema.encodeTo(Schema.Literal("null"), {
-      decode: SchemaGetter.transform(() => null),
-      encode: SchemaGetter.transform(() => "null" as const),
-    }),
-  ),
-]).annotate({
-  description: "Filter by parent session. Use null to return only root sessions.",
-})
-
-const SessionsQueryFields = {
-  workspace: Workspace.ID.pipe(Schema.optional),
-  limit: Schema.NumberFromString.pipe(Schema.decodeTo(PositiveInt), Schema.optional).annotate({
-    description: "Maximum number of sessions to return. Defaults to the newest 50 sessions.",
-  }),
-  order: Schema.optional(Schema.Union([Schema.Literal("asc"), Schema.Literal("desc")])).annotate({
-    description: "Session order for the first page. Use desc for newest first or asc for oldest first.",
-  }),
-  search: Schema.optional(Schema.String),
-  parentID: ParentIDFilter.pipe(Schema.optional),
-}
-
-const SessionsDirectoryQuery = Schema.Struct({
-  ...SessionsQueryFields,
-  directory: AbsolutePath,
-})
-
-const SessionsProjectQuery = Schema.Struct({
-  ...SessionsQueryFields,
-  project: Project.ID,
-  subpath: RelativePath.pipe(Schema.optional),
-})
-
-const SessionsAllQuery = Schema.Struct(SessionsQueryFields)
-
-const withCursor = <Fields extends Schema.Struct.Fields>(schema: Schema.Struct<Fields>) =>
-  schema.mapFields((fields) => ({
-    ...Struct.omit(fields, ["limit"]),
-    anchor: Session.ListAnchor,
-  }))
-
-const SessionsCursorInput = Schema.Union([
-  withCursor(SessionsDirectoryQuery),
-  withCursor(SessionsProjectQuery),
-  withCursor(SessionsAllQuery),
-])
-const SessionsCursorJson = Schema.fromJsonString(SessionsCursorInput)
-const encodeSessionsCursor = Schema.encodeSync(SessionsCursorJson)
-const decodeSessionsCursor = Schema.decodeUnknownEffect(SessionsCursorJson)
-const invalidCursor = "Invalid cursor" as const
-
-export const SessionsCursor = Schema.String.pipe(
-  Schema.brand("SessionsCursor"),
-  statics((schema) => {
-    const make = schema.make.bind(schema)
-    return {
-      make: (input: typeof SessionsCursorInput.Type) => make(Encoding.encodeBase64Url(encodeSessionsCursor(input))),
-      parse: (input: string) =>
-        Effect.suspend(() => {
-          const result = Encoding.decodeBase64UrlString(input)
-          return Result.isFailure(result)
-            ? Effect.fail(invalidCursor)
-            : decodeSessionsCursor(result.success).pipe(Effect.mapError(() => invalidCursor))
-        }),
-    }
-  }),
-)
-export type SessionsCursor = typeof SessionsCursor.Type
 
 const SessionActive = Schema.Struct({
   type: Schema.Literal("running"),
@@ -111,28 +42,17 @@ const BooleanFromString = Schema.Literals(["true", "false"]).pipe(
   }),
 )
 
-const SessionsQueryCursor = SessionsCursor.annotate({
-  description: "Opaque pagination cursor returned as cursor.previous or cursor.next in the previous response.",
-})
-
-export const SessionsQuery = Schema.Struct({
-  ...SessionsQueryFields,
-  directory: AbsolutePath.pipe(Schema.optional),
-  project: Project.ID.pipe(Schema.optional),
-  subpath: RelativePath.pipe(Schema.optional),
-  cursor: SessionsQueryCursor.pipe(Schema.optional),
-}).annotate({ identifier: "SessionsQuery" })
 
 export const makeSessionGroup = <I extends HttpApiMiddleware.AnyId, S>(sessionLocationMiddleware: Context.Key<I, S>) =>
   HttpApiGroup.make("server.session")
     .add(
       HttpApiEndpoint.get("session.list", "/api/session", {
-        query: SessionsQuery,
+        query: SessionsQuery.Query,
         success: Schema.Struct({
           data: Schema.Array(Session.Info),
           cursor: Schema.Struct({
-            previous: SessionsCursor.pipe(Schema.optional),
-            next: SessionsCursor.pipe(Schema.optional),
+            previous: SessionsQuery.Cursor.pipe(Schema.optional),
+            next: SessionsQuery.Cursor.pipe(Schema.optional),
           }),
         }).annotate({ identifier: "SessionsResponse" }),
         error: [InvalidCursorError, InvalidRequestError],
@@ -149,6 +69,7 @@ export const makeSessionGroup = <I extends HttpApiMiddleware.AnyId, S>(sessionLo
       HttpApiEndpoint.post("session.create", "/api/session", {
         payload: Schema.Struct({
           id: Session.ID.pipe(Schema.optional),
+          title: Schema.String.pipe(Schema.optional),
           agent: Agent.ID.pipe(Schema.optional),
           model: Model.Ref.pipe(Schema.optional),
           location: Location.Ref.pipe(Schema.optional),

packages/protocol/test/session-cursor.test.ts

@@ -1,18 +0,0 @@
-import { describe, expect, test } from "bun:test"
-import { Effect } from "effect"
-import { SessionsCursor } from "../src/groups/session.js"
-import { Session } from "@opencode-ai/schema/session"
-
-describe("SessionsCursor", () => {
-  test("round trips without Node globals", async () => {
-    const input = {
-      workspace: undefined,
-      search: "protocol",
-      order: "desc" as const,
-      anchor: { id: Session.ID.make("ses_test"), time: 1, direction: "next" as const },
-    }
-    const cursor = SessionsCursor.make(input)
-
-    expect(await Effect.runPromise(SessionsCursor.parse(cursor))).toEqual(input)
-  })
-})

packages/schema/src/session-messages-cursor.ts

@@ -0,0 +1,48 @@
+export * as SessionMessagesCursor from "./session-messages-cursor.js"
+
+import { Effect, Encoding, Result, Schema } from "effect"
+import { SessionMessage } from "./session-message.js"
+
+/**
+ * Shared session message pagination cursor. Lives in schema so the protocol
+ * message handler and the core plugin host paginate identically. The encoded
+ * cursor carries the page order, so a cursor cannot be combined with an
+ * explicit order.
+ */
+
+export const DefaultLimit = 50
+
+export const Order = Schema.Literals(["asc", "desc"])
+export type Order = typeof Order.Type
+
+const Payload = Schema.Struct({
+  id: SessionMessage.ID,
+  order: Order,
+  direction: Schema.Literals(["previous", "next"]),
+})
+export type Payload = typeof Payload.Type
+
+const PayloadJson = Schema.fromJsonString(Payload)
+const encodePayload = Schema.encodeSync(PayloadJson)
+const decodePayload = Schema.decodeUnknownEffect(PayloadJson)
+const invalidCursor = "Invalid cursor" as const
+
+export const make = (input: Payload) => Encoding.encodeBase64Url(encodePayload(input))
+
+export const parse = (input: string) =>
+  Effect.suspend(() => {
+    const result = Encoding.decodeBase64UrlString(input)
+    return Result.isFailure(result)
+      ? Effect.fail(invalidCursor)
+      : decodePayload(result.success).pipe(Effect.mapError(() => invalidCursor))
+  })
+
+/** previous/next cursors for one returned page of messages. */
+export const page = (data: ReadonlyArray<SessionMessage.Info>, order: Order) => {
+  const first = data[0]
+  const last = data.at(-1)
+  return {
+    previous: first ? make({ id: first.id, order, direction: "previous" }) : undefined,
+    next: last ? make({ id: last.id, order, direction: "next" }) : undefined,
+  }
+}

packages/schema/src/session.ts

@@ -42,7 +42,7 @@ export const Info = Schema.Struct({
     updated: DateTimeUtcFromMillis,
     archived: DateTimeUtcFromMillis.pipe(optional),
   }),
-  title: Schema.String,
+  title: Schema.String.pipe(optional),
   location: Location.Ref,
   subpath: RelativePath.pipe(optional),
   revert: Revert.pipe(optional),

packages/schema/src/sessions-query.ts

@@ -0,0 +1,125 @@
+export * as SessionsQuery from "./sessions-query.js"
+
+import { DateTime, Effect, Encoding, Result, Schema, SchemaGetter, Struct } from "effect"
+import { Project } from "./project.js"
+import { AbsolutePath, PositiveInt, RelativePath, statics } from "./schema.js"
+import { Session } from "./session.js"
+import { Workspace } from "./workspace.js"
+
+/**
+ * Shared session list query and cursor codec. Lives in schema so both the
+ * protocol session group and the core plugin host paginate identically.
+ */
+
+export const DefaultLimit = 50
+
+const ParentIDFilter = Schema.Union([
+  Session.ID,
+  Schema.Null.pipe(
+    Schema.encodeTo(Schema.Literal("null"), {
+      decode: SchemaGetter.transform(() => null),
+      encode: SchemaGetter.transform(() => "null" as const),
+    }),
+  ),
+]).annotate({
+  description: "Filter by parent session. Use null to return only root sessions.",
+})
+
+export const Fields = {
+  workspace: Workspace.ID.pipe(Schema.optional),
+  limit: Schema.NumberFromString.pipe(Schema.decodeTo(PositiveInt), Schema.optional).annotate({
+    description: "Maximum number of sessions to return. Defaults to the newest 50 sessions.",
+  }),
+  order: Schema.optional(Schema.Union([Schema.Literal("asc"), Schema.Literal("desc")])).annotate({
+    description: "Session order for the first page. Use desc for newest first or asc for oldest first.",
+  }),
+  search: Schema.optional(Schema.String),
+  parentID: ParentIDFilter.pipe(Schema.optional),
+}
+
+const DirectoryQuery = Schema.Struct({
+  ...Fields,
+  directory: AbsolutePath,
+})
+
+const ProjectQuery = Schema.Struct({
+  ...Fields,
+  project: Project.ID,
+  subpath: RelativePath.pipe(Schema.optional),
+})
+
+const AllQuery = Schema.Struct(Fields)
+
+const withAnchor = <Fields extends Schema.Struct.Fields>(schema: Schema.Struct<Fields>) =>
+  schema.mapFields((fields) => ({
+    ...Struct.omit(fields, ["limit"]),
+    anchor: Session.ListAnchor,
+  }))
+
+const CursorInput = Schema.Union([withAnchor(DirectoryQuery), withAnchor(ProjectQuery), withAnchor(AllQuery)])
+const CursorJson = Schema.fromJsonString(CursorInput)
+const encodeCursor = Schema.encodeSync(CursorJson)
+const decodeCursor = Schema.decodeUnknownEffect(CursorJson)
+const invalidCursor = "Invalid cursor" as const
+
+type PageQuery = Omit<typeof Query.Type, "limit" | "cursor">
+
+export const Cursor = Schema.String.pipe(
+  Schema.brand("SessionsCursor"),
+  statics((schema) => {
+    const make = schema.make.bind(schema)
+    const makeCursor = (input: typeof CursorInput.Type) => make(Encoding.encodeBase64Url(encodeCursor(input)))
+    return {
+      make: makeCursor,
+      parse: (input: string) =>
+        Effect.suspend(() => {
+          const result = Encoding.decodeBase64UrlString(input)
+          return Result.isFailure(result)
+            ? Effect.fail(invalidCursor)
+            : decodeCursor(result.success).pipe(Effect.mapError(() => invalidCursor))
+        }),
+      /**
+       * previous/next cursors for one returned page, re-anchoring the
+       * originating query at the page's first and last items.
+       */
+      page: (query: PageQuery, data: ReadonlyArray<Session.Info>) => {
+        const first = data[0]
+        const last = data.at(-1)
+        return {
+          previous: first
+            ? makeCursor({
+                ...query,
+                anchor: {
+                  id: first.id,
+                  time: DateTime.toEpochMillis(first.time.updated),
+                  direction: "previous",
+                },
+              })
+            : undefined,
+          next: last
+            ? makeCursor({
+                ...query,
+                anchor: {
+                  id: last.id,
+                  time: DateTime.toEpochMillis(last.time.updated),
+                  direction: "next",
+                },
+              })
+            : undefined,
+        }
+      },
+    }
+  }),
+)
+export type Cursor = typeof Cursor.Type
+
+export const Query = Schema.Struct({
+  ...Fields,
+  directory: AbsolutePath.pipe(Schema.optional),
+  project: Project.ID.pipe(Schema.optional),
+  subpath: RelativePath.pipe(Schema.optional),
+  cursor: Cursor.annotate({
+    description: "Opaque pagination cursor returned as cursor.previous or cursor.next in the previous response.",
+  }).pipe(Schema.optional),
+}).annotate({ identifier: "SessionsQuery" })
+export type Query = typeof Query.Type

packages/schema/src/v1/session.ts

@@ -552,7 +552,7 @@ export const SessionInfo = Schema.Struct({
   cost: optional(Schema.Finite),
   tokens: optional(SessionTokens),
   share: optional(SessionShare),
-  title: Schema.String,
+  title: optional(Schema.String),
   agent: optional(Schema.String),
   model: optional(SessionModel),
   version: Schema.String,

packages/schema/test/contract-hygiene.test.ts

@@ -17,7 +17,7 @@ import { Money } from "../src/money.js"
 import { Skill } from "../src/skill.js"
 import { Shell } from "../src/shell.js"
 import { PersistedRevert } from "../src/session-revert.js"
-import { optional } from "../src/schema.js"
+import { AbsolutePath, optional } from "../src/schema.js"
 
 describe("contract hygiene", () => {
   test("restricts agent colors to six-digit hex values", () => {
@@ -52,6 +52,18 @@ describe("contract hygiene", () => {
         metadata: undefined,
       }),
     ).toEqual({ text: "completed" })
+
+    expect(
+      Schema.encodeSync(Session.Info)({
+        id: Session.ID.make("ses_untitled"),
+        projectID: Project.ID.make("global"),
+        cost: Money.USD.zero,
+        tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+        time: { created: DateTime.makeUnsafe(0), updated: DateTime.makeUnsafe(0) },
+        title: undefined,
+        location: { directory: AbsolutePath.make("/project") },
+      }),
+    ).not.toHaveProperty("title")
   })
 
   test("pending session items omit the internal admission sequence", () => {

packages/schema/test/sessions-query.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, test } from "bun:test"
+import { Effect } from "effect"
+import { SessionsQuery } from "../src/sessions-query.js"
+import { SessionMessagesCursor } from "../src/session-messages-cursor.js"
+import { SessionMessage } from "../src/session-message.js"
+import { Session } from "../src/session.js"
+
+describe("SessionsQuery.Cursor", () => {
+  test("round trips without Node globals", async () => {
+    const input = {
+      workspace: undefined,
+      search: "protocol",
+      order: "desc" as const,
+      anchor: { id: Session.ID.make("ses_test"), time: 1, direction: "next" as const },
+    }
+    const cursor = SessionsQuery.Cursor.make(input)
+
+    expect(await Effect.runPromise(SessionsQuery.Cursor.parse(cursor))).toEqual(input)
+  })
+})
+
+describe("SessionMessagesCursor", () => {
+  test("round trips", async () => {
+    const input = {
+      id: SessionMessage.ID.make("msg_test"),
+      order: "desc" as const,
+      direction: "next" as const,
+    }
+    const cursor = SessionMessagesCursor.make(input)
+
+    expect(await Effect.runPromise(SessionMessagesCursor.parse(cursor))).toEqual(input)
+  })
+})

packages/server/src/handlers/message.ts

@@ -1,29 +1,10 @@
-import { SessionMessage } from "@opencode-ai/core/session/message"
 import { Session } from "@opencode-ai/core/session"
-import { Effect, Schema } from "effect"
+import { SessionMessagesCursor } from "@opencode-ai/schema/session-messages-cursor"
+import { Effect } from "effect"
 import { HttpApiBuilder } from "effect/unstable/httpapi"
 import { Api } from "../api"
 import { InvalidCursorError, SessionNotFoundError, UnknownError } from "@opencode-ai/protocol/errors"
 
-const DefaultMessagesLimit = 50
-
-const Cursor = Schema.Struct({
-  id: SessionMessage.ID,
-  order: Schema.Union([Schema.Literal("asc"), Schema.Literal("desc")]),
-  direction: Schema.Union([Schema.Literal("previous"), Schema.Literal("next")]),
-})
-
-const decodeCursor = Schema.decodeUnknownSync(Cursor)
-
-const cursor = {
-  encode(message: SessionMessage.Info, order: "asc" | "desc", direction: "previous" | "next") {
-    return Buffer.from(JSON.stringify({ id: message.id, order, direction })).toString("base64url")
-  },
-  decode(input: string) {
-    return decodeCursor(JSON.parse(Buffer.from(input, "base64url").toString("utf8")))
-  },
-}
-
 export const MessageHandler = HttpApiBuilder.group(Api, "server.message", (handlers) =>
   Effect.gen(function* () {
     const session = yield* Session.Service
@@ -33,15 +14,16 @@ export const MessageHandler = HttpApiBuilder.group(Api, "server.message", (handl
       Effect.fn(function* (ctx) {
         if (ctx.query.cursor && ctx.query.order !== undefined)
           return yield* new InvalidCursorError({ message: "Cursor cannot be combined with order" })
-        const decoded = yield* Effect.try({
-          try: () => (ctx.query.cursor ? cursor.decode(ctx.query.cursor) : undefined),
-          catch: () => new InvalidCursorError({ message: "Invalid cursor" }),
-        })
+        const decoded = ctx.query.cursor
+          ? yield* SessionMessagesCursor.parse(ctx.query.cursor).pipe(
+              Effect.mapError(() => new InvalidCursorError({ message: "Invalid cursor" })),
+            )
+          : undefined
         const order = decoded?.order ?? ctx.query.order ?? "desc"
         const messages = yield* session
           .messages({
             sessionID: ctx.params.sessionID,
-            limit: ctx.query.limit ?? DefaultMessagesLimit,
+            limit: ctx.query.limit ?? SessionMessagesCursor.DefaultLimit,
             order,
             cursor: decoded ? { id: decoded.id, direction: decoded.direction } : undefined,
           })
@@ -66,14 +48,9 @@ export const MessageHandler = HttpApiBuilder.group(Api, "server.message", (handl
               )
             }),
           )
-        const first = messages[0]
-        const last = messages.at(-1)
         return {
           data: messages,
-          cursor: {
-            previous: first ? cursor.encode(first, order, "previous") : undefined,
-            next: last ? cursor.encode(last, order, "next") : undefined,
-          },
+          cursor: SessionMessagesCursor.page(messages, order),
         }
       }),
     )

packages/server/src/handlers/session.ts

@@ -3,7 +3,7 @@ import { InstructionEntry } from "@opencode-ai/core/session/instruction-entry"
 import { DateTime, Effect, Stream } from "effect"
 import { HttpApiBuilder, HttpApiSchema } from "effect/unstable/httpapi"
 import { Api } from "../api"
-import { SessionsCursor } from "@opencode-ai/protocol/groups/session"
+import { SessionsQuery } from "@opencode-ai/schema/sessions-query"
 import {
   ConflictError,
   CommandEvaluationError,
@@ -19,8 +19,6 @@ import {
 } from "@opencode-ai/protocol/errors"
 import { AbsolutePath } from "@opencode-ai/core/schema"
 
-const DefaultSessionsLimit = 50
-
 export const SessionHandler = HttpApiBuilder.group(Api, "server.session", (handlers) =>
   Effect.gen(function* () {
     const session = yield* Session.Service
@@ -31,42 +29,18 @@ export const SessionHandler = HttpApiBuilder.group(Api, "server.session", (handl
         Effect.fn(function* (ctx) {
           const query =
             ctx.query.cursor !== undefined
-              ? yield* SessionsCursor.parse(ctx.query.cursor).pipe(
+              ? yield* SessionsQuery.Cursor.parse(ctx.query.cursor).pipe(
                   Effect.mapError(() => new InvalidCursorError({ message: "Invalid cursor" })),
                 )
               : ctx.query
           const page = yield* session.list({
             ...query,
             workspaceID: query.workspace,
-            limit: ctx.query.limit ?? DefaultSessionsLimit,
+            limit: ctx.query.limit ?? SessionsQuery.DefaultLimit,
           })
-          const sessions = page.data
-          const first = sessions[0]
-          const last = sessions.at(-1)
           return {
-            data: sessions,
-            cursor: {
-              previous: first
-                ? SessionsCursor.make({
-                    ...query,
-                    anchor: {
-                      id: first.id,
-                      time: DateTime.toEpochMillis(first.time.updated),
-                      direction: "previous",
-                    },
-                  })
-                : undefined,
-              next: last
-                ? SessionsCursor.make({
-                    ...query,
-                    anchor: {
-                      id: last.id,
-                      time: DateTime.toEpochMillis(last.time.updated),
-                      direction: "next",
-                    },
-                  })
-                : undefined,
-            },
+            data: page.data,
+            cursor: SessionsQuery.Cursor.page(query, page.data),
           }
         }),
       )
@@ -77,6 +51,7 @@ export const SessionHandler = HttpApiBuilder.group(Api, "server.session", (handl
             data: yield* session
               .create({
                 id: ctx.payload.id,
+                title: ctx.payload.title,
                 agent: ctx.payload.agent,
                 model: ctx.payload.model,
                 location: ctx.payload.location ?? { directory: AbsolutePath.make(process.cwd()) },

packages/simulation/src/frontend/renderer.ts

@@ -41,6 +41,7 @@ export const create = Effect.fn("SimulationRenderer.create")(function* (
         ...options,
         width: cols,
         height: rows,
+        kittyKeyboard: Boolean(options.useKittyKeyboard),
         ...(recording
           ? {
               stdout: recording as unknown as NodeJS.WriteStream,

packages/simulation/test/actions.test.ts

@@ -43,6 +43,25 @@ test("normalizes named keys for OpenTUI", async () => {
   ])
 })
 
+test("headless input mirrors the configured kitty keyboard protocol", async () => {
+  await Effect.runPromise(
+    Effect.scoped(
+      Effect.gen(function* () {
+        const renderer = yield* SimulationRenderer.create({ useKittyKeyboard: {} })
+        const harness = createHarness(renderer)
+        let key: { readonly name: string; readonly source: string } | undefined
+        renderer.keyInput.once("keypress", (event) => {
+          key = event
+        })
+
+        yield* execute(harness, { type: "ui.press", key: "escape" })
+
+        expect(key).toMatchObject({ name: "escape", source: "kitty" })
+      }),
+    ),
+  )
+})
+
 test("clicks a target at relative coordinates through descendant text", async () => {
   await Effect.runPromise(
     Effect.scoped(

packages/tui/src/app.tsx

@@ -66,6 +66,7 @@ import { DialogThemeList } from "./component/dialog-theme-list"
 import { DialogHelp } from "./ui/dialog-help"
 import { DialogAgent } from "./component/dialog-agent"
 import { DialogSessionList } from "./component/dialog-session-list"
+import { DialogOpen } from "./component/dialog-open"
 import { SessionTabs } from "./component/session-tabs"
 import { ThemeErrorToast } from "./component/theme-error-toast"
 import { ThemeProvider, useTheme, useThemes } from "./context/theme"
@@ -75,7 +76,7 @@ import { PromptHistoryProvider } from "./component/prompt/history"
 import { FrecencyProvider } from "./component/prompt/frecency"
 import { PromptStashProvider } from "./component/prompt/stash"
 import { Toast, ToastProvider, useToast } from "./ui/toast"
-import { isDefaultTitle } from "./util/session"
+import { isFallbackTitle } from "@opencode-ai/util/session-title-fallback"
 import * as Model from "./util/model"
 import { ArgsProvider, useArgs, type Args } from "./context/args"
 import open from "open"
@@ -94,16 +95,15 @@ import { StorageProvider } from "./context/storage"
 
 registerOpencodeSpinner()
 
-const appGlobalBindingCommands = ["session.list", "session.new"] as const
+const appGlobalBindingCommands = ["session.list", "session.new", "open.menu"] as const
 
 const sessionTabBindingCommands = [
   "session.tab.next",
   "session.tab.previous",
-  "session.tab.history.back",
-  "session.tab.history.forward",
   "session.tab.next_unread",
   "session.tab.previous_unread",
   "session.tab.close",
+  "session.tab.reopen",
   "session.tab.select.1",
   "session.tab.select.2",
   "session.tab.select.3",
@@ -523,8 +523,11 @@ function App(props: { pair?: DialogPairCredentials }) {
     renderer.useMouse = config.data.mouse
   })
 
+  let active: { id: string; title?: string } | undefined
   // Update terminal window title based on current route and session
   createEffect(() => {
+    const session = route.data.type === "session" ? data.session.get(route.data.sessionID) : undefined
+    if (session) active = { id: session.id, title: session.title }
     if (!terminalTitleEnabled()) return
 
     if (route.data.type === "home") {
@@ -533,14 +536,13 @@ function App(props: { pair?: DialogPairCredentials }) {
     }
 
     if (route.data.type === "session") {
-      const session = data.session.get(route.data.sessionID)
-      if (!session || isDefaultTitle(session.title)) {
+      const title = session?.title
+      if (!title || isFallbackTitle(title)) {
         renderer.setTerminalTitle("OpenCode")
         return
       }
 
-      const title = session.title.length > 40 ? session.title.slice(0, 37) + "..." : session.title
-      renderer.setTerminalTitle(`OC | ${title}`)
+      renderer.setTerminalTitle(`OC | ${title.length > 40 ? title.slice(0, 37) + "..." : title}`)
       return
     }
 
@@ -644,10 +646,23 @@ function App(props: { pair?: DialogPairCredentials }) {
         run: () => {
           route.navigate({
             type: "home",
+            location:
+              route.data.type === "session"
+                ? (data.session.get(route.data.sessionID)?.location ?? location.ref)
+                : undefined,
           })
           dialog.clear()
         },
       },
+      {
+        name: "open.menu",
+        title: "Open session or project",
+        category: "Session",
+        slash: { name: "open", aliases: ["projects", "project"] },
+        run: () => {
+          dialog.replace(() => <DialogOpen />)
+        },
+      },
       ...Array.from({ length: 9 }, (_, i) => ({
         name: `session.quick_switch.${i + 1}`,
         title: `Switch to session in quick slot ${i + 1}`,
@@ -658,7 +673,7 @@ function App(props: { pair?: DialogPairCredentials }) {
       })),
       {
         name: "session.tab.next",
-        title: "Next open session tab",
+        title: "Next tab",
         category: "Session",
         palette: undefined,
         enabled: sessionTabs.enabled,
@@ -666,31 +681,15 @@ function App(props: { pair?: DialogPairCredentials }) {
       },
       {
         name: "session.tab.previous",
-        title: "Previous open session tab",
+        title: "Previous tab",
         category: "Session",
         palette: undefined,
         enabled: sessionTabs.enabled,
         run: () => sessionTabs.cycle(-1),
       },
-      {
-        name: "session.tab.history.back",
-        title: "Back in session tab history",
-        category: "Session",
-        palette: undefined,
-        enabled: sessionTabs.enabled,
-        run: () => sessionTabs.history(-1),
-      },
-      {
-        name: "session.tab.history.forward",
-        title: "Forward in session tab history",
-        category: "Session",
-        palette: undefined,
-        enabled: sessionTabs.enabled,
-        run: () => sessionTabs.history(1),
-      },
       {
         name: "session.tab.next_unread",
-        title: "Next unread session tab",
+        title: "Next unread tab",
         category: "Session",
         palette: undefined,
         enabled: sessionTabs.enabled,
@@ -698,7 +697,7 @@ function App(props: { pair?: DialogPairCredentials }) {
       },
       {
         name: "session.tab.previous_unread",
-        title: "Previous unread session tab",
+        title: "Previous unread tab",
         category: "Session",
         palette: undefined,
         enabled: sessionTabs.enabled,
@@ -706,14 +705,21 @@ function App(props: { pair?: DialogPairCredentials }) {
       },
       {
         name: "session.tab.close",
-        title: "Close current session tab",
+        title: "Close tab",
         category: "Session",
         enabled: sessionTabs.enabled,
         run: () => sessionTabs.close(),
       },
+      {
+        name: "session.tab.reopen",
+        title: "Reopen closed tab",
+        category: "Session",
+        enabled: sessionTabs.enabled,
+        run: () => sessionTabs.reopen(),
+      },
       ...Array.from({ length: 9 }, (_, i) => ({
         name: `session.tab.select.${i + 1}`,
-        title: `Switch to session tab ${i + 1}`,
+        title: `Switch to tab ${i + 1}`,
         category: "Session",
         palette: undefined,
         enabled: sessionTabs.enabled,
@@ -1142,10 +1148,11 @@ function App(props: { pair?: DialogPairCredentials }) {
 
   event.on("session.deleted", (evt) => {
     if (route.data.type === "session" && route.data.sessionID === evt.data.sessionID) {
+      const title = active?.id === evt.data.sessionID ? active.title : undefined
       route.navigate({ type: "home" })
       toast.show({
         variant: "info",
-        message: "The current session was deleted",
+        message: title ? `Session "${title}" was deleted` : "The current session was deleted",
       })
     }
   })
@@ -1209,7 +1216,13 @@ function App(props: { pair?: DialogPairCredentials }) {
         <box flexGrow={1} minWidth={0} flexDirection="column">
           <Show when={plugins.ready()}>
             <box flexGrow={1} minHeight={0} flexDirection="column">
-              <Show when={sessionTabs.enabled() && sessionTabs.tabs().length > 0 && route.data.type !== "plugin"}>
+              <Show
+                when={
+                  sessionTabs.enabled() &&
+                  (sessionTabs.tabs().length > 0 || sessionTabs.newTab()) &&
+                  route.data.type !== "plugin"
+                }
+              >
                 <SessionTabs />
               </Show>
               <Switch>

packages/tui/src/component/bg-pulse-render.ts

@@ -1,436 +0,0 @@
-import { OptimizedBuffer, RGBA, TextAttributes } from "@opentui/core"
-import { go } from "../logo"
-
-const PERIOD = 4600
-const RINGS = 3
-const WIDTH = 3.8
-const TAIL = 9.5
-const AMP = 0.55
-const TAIL_AMP = 0.16
-const BREATH_AMP = 0.05
-const BREATH_SPEED = 0.0008
-// Offset so the bg ring emits from the estimated GO center when the logo shimmer peaks.
-const PHASE_OFFSET = 0.29
-const LOGO_GAP = 1
-const LOGO_TOP_BIAS = -1
-const LOGO_LEFT_WIDTH = go.left[0]?.length ?? 0
-const LOGO_LINES = go.left.map((line, index) => line + " ".repeat(LOGO_GAP) + go.right[index])
-const LOGO_WIDTH = LOGO_LINES[0]?.length ?? 0
-const LOGO_HEIGHT = LOGO_LINES.length
-const SPACE = " ".codePointAt(0)!
-const TOP_HALF = "▀".codePointAt(0)!
-const FULL_BLOCK = "█".codePointAt(0)!
-const RING_SCALE = 1 / RINGS
-const TAIL_SCALE = 1 / TAIL
-const LOGO_REACH = Math.hypot(LOGO_WIDTH, LOGO_HEIGHT * 2) + 3
-
-const enum LogoCellKind {
-  Background,
-  Top,
-  ShadowTop,
-  Solid,
-  Char,
-}
-
-type LogoTemplateCell = {
-  x: number
-  y: number
-  kind: LogoCellKind
-  charCode: number
-  attributes: number
-  topDist: number
-  bottomDist: number
-}
-
-const LOGO_TEMPLATE: LogoTemplateCell[] = LOGO_LINES.flatMap((line, y) =>
-  Array.from(line)
-    .map((char, x) => {
-      if (char === " ") return
-      const kind =
-        char === "_"
-          ? LogoCellKind.Background
-          : char === "^"
-            ? LogoCellKind.Top
-            : char === "~"
-              ? LogoCellKind.ShadowTop
-              : char === "█"
-                ? LogoCellKind.Solid
-                : LogoCellKind.Char
-      return {
-        x,
-        y,
-        kind,
-        charCode: char.codePointAt(0) ?? SPACE,
-        attributes: x > LOGO_LEFT_WIDTH ? TextAttributes.BOLD : 0,
-        topDist: Math.hypot(x + 0.5 - LOGO_WIDTH / 2, y * 2 - LOGO_HEIGHT),
-        bottomDist: Math.hypot(x + 0.5 - LOGO_WIDTH / 2, y * 2 + 1 - LOGO_HEIGHT),
-      }
-    })
-    .filter((cell): cell is LogoTemplateCell => !!cell),
-)
-
-export type Rgb = [number, number, number]
-
-export type GoUpsellArtRenderOptions = {
-  deltaTime?: number
-  rgb?: boolean
-  cache?: boolean
-}
-
-const CACHE_FRAME_COUNT = Math.round(PERIOD / (1000 / 30))
-const CACHE_FRAMES_PER_RENDER = 1
-
-export function toRgb(color: RGBA): Rgb {
-  const [r, g, b] = color.toInts()
-  return [r, g, b]
-}
-
-function clamp(n: number) {
-  return Math.max(0, Math.min(1, n))
-}
-
-function writeRgb(buffer: Uint16Array, offset: number, r: number, g: number, b: number, a = 255) {
-  buffer[offset] = r
-  buffer[offset + 1] = g
-  buffer[offset + 2] = b
-  buffer[offset + 3] = a
-}
-
-function mixChannel(base: number, overlay: number, alpha: number) {
-  return Math.round(base + (overlay - base) * clamp(alpha))
-}
-
-function writeLogoTint(
-  buffer: Uint16Array,
-  offset: number,
-  base: Rgb,
-  primary: Rgb,
-  primaryMix: number,
-  peakMix: number,
-) {
-  const p = clamp(primaryMix)
-  const q = clamp(peakMix)
-  const r = mixChannel(mixChannel(base[0], primary[0], p), 255, q)
-  const g = mixChannel(mixChannel(base[1], primary[1], p), 255, q)
-  const b = mixChannel(mixChannel(base[2], primary[2], p), 255, q)
-  writeRgb(buffer, offset, r, g, b)
-}
-
-function sameRgb(a: Rgb, b: Rgb) {
-  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2]
-}
-
-export class GoUpsellArtPainter {
-  private panelRgb: Rgb = [0, 0, 0]
-  private primaryRgb: Rgb = [255, 255, 255]
-  private logoBaseRgb: Rgb = [180, 180, 180]
-  private elapsed = 0
-  private distances = new Float32Array(0)
-  private edgeFalloff = new Float32Array(0)
-  private geometryWidth = 0
-  private geometryHeight = 0
-  private reach = 1
-  private logoX = 0
-  private logoY = 0
-  private logoIndexes = new Int32Array(0)
-  private logoRgb: boolean | undefined
-  private pulsePeak = 0
-  private pulsePrimary = 0
-  private cacheDirty = true
-  private frameCache: Array<{ fg: Uint16Array; bg: Uint16Array }> = []
-  private cacheBuildIndex = 0
-
-  setBackgroundPanel(value: RGBA | Rgb | undefined) {
-    if (!value) return false
-    const next = value instanceof RGBA ? toRgb(value) : value
-    if (sameRgb(this.panelRgb, next)) return false
-    this.panelRgb = next
-    this.invalidateCache()
-    return true
-  }
-
-  setLogoBase(value: RGBA | Rgb | undefined) {
-    if (!value) return false
-    const next = value instanceof RGBA ? toRgb(value) : value
-    if (sameRgb(this.logoBaseRgb, next)) return false
-    this.logoBaseRgb = next
-    this.invalidateCache()
-    return true
-  }
-
-  setPrimary(value: RGBA | Rgb | undefined) {
-    if (!value) return false
-    const next = value instanceof RGBA ? toRgb(value) : value
-    if (sameRgb(this.primaryRgb, next)) return false
-    this.primaryRgb = next
-    this.invalidateCache()
-    return true
-  }
-
-  render(frameBuffer: OptimizedBuffer, options: GoUpsellArtRenderOptions = {}) {
-    const rgb = options.rgb === true
-    this.elapsed = (this.elapsed + (options.deltaTime ?? 0)) % PERIOD
-    this.rebuildGeometry(frameBuffer, rgb)
-    if (options.cache !== false) {
-      this.drawCached(frameBuffer, rgb)
-      return
-    }
-    this.drawBackground(frameBuffer, this.elapsed)
-    this.drawLogo(frameBuffer, this.elapsed, rgb)
-  }
-
-  private invalidateCache() {
-    this.cacheDirty = true
-    this.cacheBuildIndex = 0
-    this.frameCache = []
-  }
-
-  private rebuildGeometry(frameBuffer: OptimizedBuffer, rgb: boolean) {
-    const width = frameBuffer.width
-    const height = frameBuffer.height
-    const geometryChanged = width !== this.geometryWidth || height !== this.geometryHeight
-    const logoTemplateChanged = this.logoRgb !== rgb
-    if (!geometryChanged && !logoTemplateChanged) return
-
-    if (geometryChanged) {
-      this.geometryWidth = width
-      this.geometryHeight = height
-      this.logoX = Math.max(0, Math.floor((width - LOGO_WIDTH) / 2))
-      this.logoY = Math.max(
-        0,
-        Math.min(Math.max(0, height - LOGO_HEIGHT), Math.round((height - LOGO_HEIGHT) / 2) + LOGO_TOP_BIAS),
-      )
-
-      const centerX = this.logoX + LOGO_WIDTH / 2
-      const centerY = this.logoY + LOGO_HEIGHT / 2
-      this.reach = Math.hypot(Math.max(centerX, width - centerX), Math.max(centerY, height - centerY) * 2) + TAIL
-      this.distances = new Float32Array(width * height)
-      this.edgeFalloff = new Float32Array(width * height)
-
-      for (let y = 0; y < height; y++) {
-        for (let x = 0; x < width; x++) {
-          const index = y * width + x
-          const dist = Math.hypot(x + 0.5 - centerX, (y + 0.5 - centerY) * 2)
-          this.distances[index] = dist
-          this.edgeFalloff[index] = Math.max(0, 1 - (dist / (this.reach * 0.85)) ** 2)
-        }
-      }
-    }
-
-    this.logoRgb = rgb
-    this.invalidateCache()
-    this.rebuildCellTemplate(frameBuffer, rgb)
-  }
-
-  private drawCached(frameBuffer: OptimizedBuffer, rgb: boolean) {
-    if (this.cacheDirty) this.startFrameCache(frameBuffer, rgb)
-    if (this.cacheBuildIndex < CACHE_FRAME_COUNT) {
-      this.buildFrameCache(frameBuffer, rgb)
-      this.drawBackground(frameBuffer, this.elapsed)
-      this.drawLogo(frameBuffer, this.elapsed, rgb)
-      return
-    }
-
-    const frame = this.frameCache[Math.floor((this.elapsed / PERIOD) * CACHE_FRAME_COUNT) % CACHE_FRAME_COUNT]
-    if (frame) {
-      frameBuffer.buffers.fg.set(frame.fg)
-      frameBuffer.buffers.bg.set(frame.bg)
-    }
-  }
-
-  private startFrameCache(frameBuffer: OptimizedBuffer, rgb: boolean) {
-    this.frameCache = []
-    this.cacheBuildIndex = 0
-    this.rebuildCellTemplate(frameBuffer, rgb)
-    this.cacheDirty = false
-  }
-
-  private buildFrameCache(frameBuffer: OptimizedBuffer, rgb: boolean) {
-    const end = Math.min(CACHE_FRAME_COUNT, this.cacheBuildIndex + CACHE_FRAMES_PER_RENDER)
-    for (; this.cacheBuildIndex < end; this.cacheBuildIndex++) {
-      const t = (this.cacheBuildIndex / CACHE_FRAME_COUNT) * PERIOD
-      this.drawBackground(frameBuffer, t)
-      this.drawLogo(frameBuffer, t, rgb)
-      this.frameCache.push({
-        fg: new Uint16Array(frameBuffer.buffers.fg),
-        bg: new Uint16Array(frameBuffer.buffers.bg),
-      })
-    }
-  }
-
-  private rebuildCellTemplate(frameBuffer: OptimizedBuffer, rgb: boolean) {
-    const buffers = frameBuffer.buffers
-    buffers.char.fill(SPACE)
-    buffers.attributes.fill(0)
-
-    if (this.geometryWidth < LOGO_WIDTH || this.geometryHeight < LOGO_HEIGHT) {
-      this.logoIndexes = new Int32Array(0)
-      return
-    }
-
-    this.logoIndexes = new Int32Array(LOGO_TEMPLATE.length)
-    for (let i = 0; i < LOGO_TEMPLATE.length; i++) {
-      const cell = LOGO_TEMPLATE[i]!
-      const index = (this.logoY + cell.y) * this.geometryWidth + this.logoX + cell.x
-      this.logoIndexes[i] = index
-      buffers.attributes[index] = cell.attributes
-      buffers.char[index] =
-        cell.kind === LogoCellKind.Background
-          ? SPACE
-          : cell.kind === LogoCellKind.Top || cell.kind === LogoCellKind.ShadowTop
-            ? TOP_HALF
-            : cell.kind === LogoCellKind.Solid
-              ? rgb
-                ? TOP_HALF
-                : FULL_BLOCK
-              : cell.charCode
-    }
-  }
-
-  private drawBackground(frameBuffer: OptimizedBuffer, t: number) {
-    const buffers = frameBuffer.buffers
-    const fg = buffers.fg
-    const bg = buffers.bg
-    const distances = this.distances
-    const edgeFalloff = this.edgeFalloff
-    const baseR = this.panelRgb[0]
-    const baseG = this.panelRgb[1]
-    const baseB = this.panelRgb[2]
-    const deltaR = this.primaryRgb[0] - baseR
-    const deltaG = this.primaryRgb[1] - baseG
-    const deltaB = this.primaryRgb[2] - baseB
-    const breath = (0.5 + 0.5 * Math.sin(t * BREATH_SPEED)) * BREATH_AMP
-
-    const phase0 = (t / PERIOD - PHASE_OFFSET + 1) % 1
-    const phase1 = (t / PERIOD + 1 / RINGS - PHASE_OFFSET + 1) % 1
-    const phase2 = (t / PERIOD + 2 / RINGS - PHASE_OFFSET + 1) % 1
-    const envelope0 = Math.sin(phase0 * Math.PI)
-    const envelope1 = Math.sin(phase1 * Math.PI)
-    const envelope2 = Math.sin(phase2 * Math.PI)
-    const eased0 = envelope0 * envelope0 * (3 - 2 * envelope0)
-    const eased1 = envelope1 * envelope1 * (3 - 2 * envelope1)
-    const eased2 = envelope2 * envelope2 * (3 - 2 * envelope2)
-    const head0 = phase0 * this.reach
-    const head1 = phase1 * this.reach
-    const head2 = phase2 * this.reach
-
-    for (let index = 0; index < distances.length; index++) {
-      const dist = distances[index]
-      const delta0 = dist - head0
-      const abs0 = delta0 < 0 ? -delta0 : delta0
-      const crest0 = abs0 < WIDTH ? 0.5 + 0.5 * Math.cos((delta0 / WIDTH) * Math.PI) : 0
-      const tail0 = delta0 < 0 && delta0 > -TAIL ? (1 + delta0 * TAIL_SCALE) ** 2.3 : 0
-
-      const delta1 = dist - head1
-      const abs1 = delta1 < 0 ? -delta1 : delta1
-      const crest1 = abs1 < WIDTH ? 0.5 + 0.5 * Math.cos((delta1 / WIDTH) * Math.PI) : 0
-      const tail1 = delta1 < 0 && delta1 > -TAIL ? (1 + delta1 * TAIL_SCALE) ** 2.3 : 0
-
-      const delta2 = dist - head2
-      const abs2 = delta2 < 0 ? -delta2 : delta2
-      const crest2 = abs2 < WIDTH ? 0.5 + 0.5 * Math.cos((delta2 / WIDTH) * Math.PI) : 0
-      const tail2 = delta2 < 0 && delta2 > -TAIL ? (1 + delta2 * TAIL_SCALE) ** 2.3 : 0
-
-      const level =
-        (crest0 * AMP + tail0 * TAIL_AMP) * eased0 +
-        (crest1 * AMP + tail1 * TAIL_AMP) * eased1 +
-        (crest2 * AMP + tail2 * TAIL_AMP) * eased2
-      const rawStrength = (level * RING_SCALE + breath) * edgeFalloff[index]
-      const strength = (rawStrength > 1 ? 1 : rawStrength) * 0.7
-      const offset = index * 4
-      const r = Math.round(baseR + deltaR * strength)
-      const g = Math.round(baseG + deltaG * strength)
-      const b = Math.round(baseB + deltaB * strength)
-      bg[offset] = fg[offset] = r
-      bg[offset + 1] = fg[offset + 1] = g
-      bg[offset + 2] = fg[offset + 2] = b
-      bg[offset + 3] = fg[offset + 3] = 255
-    }
-  }
-
-  private setLogoPulse(dist: number, head0: number, eased0: number, head1: number, eased1: number) {
-    let peak = 0.04
-    let primary = 0
-
-    const delta0 = dist - head0
-    const core0 = Math.exp(-(Math.abs(delta0 / 1.2) ** 1.8))
-    const soft0 = Math.exp(-(Math.abs(delta0 / 7) ** 1.6))
-    const tail0 = delta0 < 0 && delta0 > -7 ? (1 + delta0 / 7) ** 2.6 : 0
-    peak += core0 * 0.65 * eased0
-    primary += (soft0 * 0.16 + tail0 * 0.22) * eased0
-
-    const delta1 = dist - head1
-    const core1 = Math.exp(-(Math.abs(delta1 / 1.2) ** 1.8))
-    const soft1 = Math.exp(-(Math.abs(delta1 / 7) ** 1.6))
-    const tail1 = delta1 < 0 && delta1 > -7 ? (1 + delta1 / 7) ** 2.6 : 0
-    peak += core1 * 0.65 * eased1
-    primary += (soft1 * 0.16 + tail1 * 0.22) * eased1
-
-    this.pulsePeak = peak > 1 ? 1 : peak
-    this.pulsePrimary = primary > 1 ? 1 : primary
-  }
-
-  private drawLogo(frameBuffer: OptimizedBuffer, t: number, rgb: boolean) {
-    if (this.logoIndexes.length === 0) return
-
-    const buffers = frameBuffer.buffers
-    const fg = buffers.fg
-    const bg = buffers.bg
-    const shadow: Rgb = [
-      mixChannel(this.panelRgb[0], this.logoBaseRgb[0], 0.25),
-      mixChannel(this.panelRgb[1], this.logoBaseRgb[1], 0.25),
-      mixChannel(this.panelRgb[2], this.logoBaseRgb[2], 0.25),
-    ]
-    const phase0 = (t / PERIOD) % 1
-    const phase1 = (t / PERIOD + 0.5) % 1
-    const envelope0 = Math.sin(phase0 * Math.PI)
-    const envelope1 = Math.sin(phase1 * Math.PI)
-    const eased0 = envelope0 * envelope0 * (3 - 2 * envelope0)
-    const eased1 = envelope1 * envelope1 * (3 - 2 * envelope1)
-    const head0 = phase0 * LOGO_REACH
-    const head1 = phase1 * LOGO_REACH
-
-    for (let i = 0; i < LOGO_TEMPLATE.length; i++) {
-      const cell = LOGO_TEMPLATE[i]!
-      const index = this.logoIndexes[i]!
-      const offset = index * 4
-      this.setLogoPulse(cell.topDist, head0, eased0, head1, eased1)
-      const topPeak = this.pulsePeak
-      const topPrimary = this.pulsePrimary
-      this.setLogoPulse(cell.bottomDist, head0, eased0, head1, eased1)
-      const bottomPeak = this.pulsePeak
-      const bottomPrimary = this.pulsePrimary
-
-      if (cell.kind === LogoCellKind.Background) {
-        writeLogoTint(bg, offset, shadow, this.primaryRgb, 0, Math.max(topPeak, bottomPeak) * 0.18)
-        continue
-      }
-
-      if (cell.kind === LogoCellKind.Top) {
-        writeLogoTint(fg, offset, this.logoBaseRgb, this.primaryRgb, topPrimary, topPeak)
-        writeLogoTint(bg, offset, shadow, this.primaryRgb, 0, bottomPeak * 0.18)
-        continue
-      }
-
-      if (cell.kind === LogoCellKind.ShadowTop) {
-        writeLogoTint(fg, offset, shadow, this.primaryRgb, 0, topPeak * 0.18)
-        continue
-      }
-
-      if (cell.kind === LogoCellKind.Solid && rgb) {
-        writeLogoTint(fg, offset, this.logoBaseRgb, this.primaryRgb, topPrimary, topPeak)
-        writeLogoTint(bg, offset, this.logoBaseRgb, this.primaryRgb, bottomPrimary, bottomPeak)
-        continue
-      }
-
-      writeLogoTint(
-        fg,
-        offset,
-        this.logoBaseRgb,
-        this.primaryRgb,
-        (topPrimary + bottomPrimary) / 2,
-        (topPeak + bottomPeak) / 2,
-      )
-    }
-  }
-}

packages/tui/src/component/bg-pulse.tsx

@@ -1,102 +0,0 @@
-import {
-  FrameBufferRenderable,
-  RGBA,
-  type OptimizedBuffer,
-  type RenderContext,
-  type RenderableOptions,
-} from "@opentui/core"
-import { extend, useRenderer } from "@opentui/solid"
-import { onCleanup, onMount } from "solid-js"
-import { useTheme, useThemes } from "../context/theme"
-import { tint } from "../theme/color"
-import { GoUpsellArtPainter } from "./bg-pulse-render"
-
-type GoUpsellArtOptions = RenderableOptions<FrameBufferRenderable> & {
-  backgroundPanel?: RGBA
-  primary?: RGBA
-  logoBase?: RGBA
-}
-
-class GoUpsellArtRenderable extends FrameBufferRenderable {
-  private painter = new GoUpsellArtPainter()
-
-  constructor(ctx: RenderContext, options: GoUpsellArtOptions = {}) {
-    const width = typeof options.width === "number" ? options.width : 1
-    const height = typeof options.height === "number" ? options.height : 1
-    super(ctx, {
-      ...options,
-      width,
-      height,
-      live: options.live ?? true,
-      respectAlpha: false,
-    })
-
-    if (options.width !== undefined && typeof options.width !== "number") this.width = options.width
-    if (options.height !== undefined && typeof options.height !== "number") this.height = options.height
-    this.painter.setBackgroundPanel(options.backgroundPanel)
-    this.painter.setPrimary(options.primary)
-    this.painter.setLogoBase(options.logoBase)
-  }
-
-  set backgroundPanel(value: RGBA | undefined) {
-    if (this.painter.setBackgroundPanel(value)) this.requestRender()
-  }
-
-  set logoBase(value: RGBA | undefined) {
-    if (this.painter.setLogoBase(value)) this.requestRender()
-  }
-
-  set primary(value: RGBA | undefined) {
-    if (this.painter.setPrimary(value)) this.requestRender()
-  }
-
-  protected override renderSelf(buffer: OptimizedBuffer, deltaTime = 0): void {
-    if (!this.visible || this.isDestroyed) return
-
-    this.painter.render(this.frameBuffer, {
-      deltaTime,
-      rgb: this._ctx.capabilities?.rgb === true,
-    })
-    super.renderSelf(buffer)
-  }
-}
-
-declare module "@opentui/solid" {
-  interface OpenTUIComponents {
-    go_upsell_art: typeof GoUpsellArtRenderable
-  }
-}
-
-extend({ go_upsell_art: GoUpsellArtRenderable })
-
-export function BgPulse() {
-  const themes = useThemes()
-  const theme = useTheme("elevated")
-  const mode = themes.mode
-  const renderer = useRenderer()
-  let targetFps = renderer.targetFps
-  let maxFps = renderer.maxFps
-
-  onMount(() => {
-    targetFps = renderer.targetFps
-    maxFps = renderer.maxFps
-    renderer.targetFps = 30
-    renderer.maxFps = 30
-  })
-
-  onCleanup(() => {
-    renderer.targetFps = targetFps
-    renderer.maxFps = maxFps
-  })
-
-  return (
-    <go_upsell_art
-      width="100%"
-      height="100%"
-      backgroundPanel={theme.background.default}
-      primary={theme.hue.interactive[mode() === "light" ? 800 : 200]}
-      logoBase={tint(theme.background.default, theme.text.default, 0.62)}
-      live
-    />
-  )
-}

packages/tui/src/component/dialog-config.tsx

@@ -105,7 +105,7 @@ export const settings: Setting[] = [
     title: "Scope",
     category: "Tabs",
     path: ["tabs", "scope"],
-    default: "cwd",
+    default: "global",
     values: ["cwd", "global"],
     labels: ["current directory", "global"],
   },

packages/tui/src/component/dialog-move-session.tsx

@@ -2,8 +2,8 @@ import { useTerminalDimensions } from "@opentui/solid"
 import { TextAttributes } from "@opentui/core"
 import { createMemo, createResource, createSignal, onMount, Show } from "solid-js"
 import path from "path"
-import { DialogSelect, type DialogSelectOption } from "../ui/dialog-select"
-import { useDialog } from "../ui/dialog"
+import { DialogSelect, dialogSelectContentWidth, type DialogSelectOption } from "../ui/dialog-select"
+import { dialogWidth, useDialog } from "../ui/dialog"
 import { useClient } from "../context/client"
 import { Keymap } from "../context/keymap"
 import { useTheme } from "../context/theme"
@@ -159,7 +159,10 @@ export function DialogMoveSession(props: DialogMoveSessionProps) {
       if (b.location === b.root.directory) return 1
       return a.location.localeCompare(b.location)
     })
-    const titleWidth = Math.max(1, Math.min(116, dimensions().width - 2) - 12)
+    const titleWidth = Math.max(
+      1,
+      dialogSelectContentWidth(Math.min(dialogWidth("xlarge"), dimensions().width - 2)),
+    )
 
     return list.map((item) => {
       const title = abbreviateHome(item.location, paths.home)

packages/tui/src/component/dialog-open.tsx

@@ -0,0 +1,178 @@
+import path from "path"
+import { createMemo, createResource, createSignal, onMount } from "solid-js"
+import type { SessionInfo } from "@opencode-ai/client"
+import { useTerminalDimensions } from "@opentui/solid"
+import { dialogWidth, useDialog } from "../ui/dialog"
+import { DialogSelect, dialogSelectContentWidth } from "../ui/dialog-select"
+import { useRoute } from "../context/route"
+import { useData } from "../context/data"
+import { useClient } from "../context/client"
+import { useLocation } from "../context/location"
+import { useSessionTabs } from "../context/session-tabs"
+import { useTheme, useThemes } from "../context/theme"
+import { Keymap } from "../context/keymap"
+import { Locale } from "../util/locale"
+import { abbreviateHome } from "../runtime"
+import { useTuiPaths } from "../context/runtime"
+import { truncateFilePath } from "../ui/file-path"
+import { stringWidth } from "../util/string-width"
+import { withTimestampedFallback } from "@opencode-ai/util/session-title-fallback"
+import { Spinner } from "./spinner"
+
+const RECENT_LIMIT = 8
+
+type OpenTarget = { type: "session"; sessionID: string } | { type: "project"; directory: string }
+
+export function DialogOpen() {
+  const dialog = useDialog()
+  const route = useRoute()
+  const data = useData()
+  const client = useClient()
+  const location = useLocation()
+  const sessionTabs = useSessionTabs()
+  const themes = useThemes()
+  const theme = useTheme("elevated")
+  const mode = themes.mode
+  const paths = useTuiPaths()
+  const dimensions = useTerminalDimensions()
+  const shortcuts = Keymap.useShortcuts()
+  const [filter, setFilter] = createSignal("")
+  const [selectionMoved, setSelectionMoved] = createSignal(false)
+
+  void data.project.sync().catch(() => {})
+
+  // One background fetch fills in recent sessions from other projects; the menu renders
+  // immediately from the local store and never blocks on the network.
+  const [fetched] = createResource(
+    () =>
+      client.api.session
+        .list({ limit: 50, order: "desc", parentID: null })
+        .then((response) => response.data)
+        .catch(() => [] as SessionInfo[]),
+    { initialValue: [] },
+  )
+
+  const openTabs = createMemo(
+    () => new Set(sessionTabs.enabled() ? sessionTabs.tabs().map((tab) => tab.sessionID) : []),
+  )
+  const currentSessionID = createMemo(() =>
+    route.data.type === "session" ? data.session.root(route.data.sessionID) : undefined,
+  )
+  const sessions = createMemo(() => {
+    const seen = new Set<string>()
+    return [...data.session.list(), ...fetched()]
+      .filter((session) => {
+        if (session.parentID || seen.has(session.id)) return false
+        seen.add(session.id)
+        return true
+      })
+      .toSorted((a, b) => b.time.updated - a.time.updated)
+  })
+
+  const options = createMemo(() => {
+    const tabs = openTabs()
+    // With an empty query the menu shows what is not already one keystroke away: open tabs are
+    // visible in the strip, so recents exclude them. Typing widens the pool to every session so
+    // matching a loaded tab by name still switches to it.
+    const recent = filter().trim()
+      ? sessions()
+      : sessions()
+          .filter((session) => !tabs.has(session.id))
+          .slice(0, RECENT_LIMIT)
+    const sessionOptions = recent.map((session) => {
+      const project = data.project.get(session.projectID)
+      const name = project?.canonical === "/" ? undefined : project?.name || path.basename(project?.canonical ?? "")
+      const running =
+        data.session.status(session.id) === "running" ||
+        data.session.family(session.id).some((id) => data.session.status(id) === "running")
+      return {
+        title: withTimestampedFallback(session),
+        value: { type: "session", sessionID: session.id } as OpenTarget,
+        category: "Sessions",
+        footer: `${name ? `${Locale.truncate(name, 20)} · ` : ""}${timeAgo(session.time.updated)}`,
+        onSelect: () => location.set(session.location),
+        gutter: running
+          ? () => <Spinner />
+          : tabs.has(session.id)
+            ? () => <text fg={theme.hue.accent[mode() === "light" ? 800 : 200]}>▪</text>
+            : undefined,
+      }
+    })
+
+    const current = location.current?.project
+    const seen = new Set<string>()
+    const projectOptions = data.project
+      .list()
+      .filter((project) => {
+        if (project.canonical === "/" || seen.has(project.canonical)) return false
+        seen.add(project.canonical)
+        return true
+      })
+      .map((project) => {
+        const title = project.name ?? path.basename(project.canonical)
+        const footer = abbreviateHome(project.canonical, paths.home)
+        const width =
+          dialogSelectContentWidth(Math.min(dialogWidth("large"), dimensions().width - 2)) - stringWidth(title)
+        return {
+          title,
+          footer: truncateFilePath(footer, width),
+          searchText: footer,
+          value: { type: "project", directory: project.canonical } as OpenTarget,
+          category: "Projects",
+          gutter:
+            project.canonical === current?.canonical
+              ? () => <text fg={theme.text.formfield.selected}>●</text>
+              : undefined,
+        }
+      })
+
+    return [...sessionOptions, ...projectOptions]
+  })
+
+  onMount(() => dialog.setSize("large"))
+
+  return (
+    <DialogSelect
+      title="Open"
+      placeholder="Search sessions and projects…"
+      options={options()}
+      current={currentSessionID() ? ({ type: "session", sessionID: currentSessionID()! } as OpenTarget) : undefined}
+      focusCurrent={false}
+      preserveSelection={selectionMoved()}
+      onMove={() => setSelectionMoved(true)}
+      onFilter={setFilter}
+      noMatchView={
+        <box paddingLeft={4} paddingRight={4}>
+          <text fg={theme.text.subdued}>
+            {shortcuts.get("session.list")
+              ? `No matches · search all sessions with ${shortcuts.get("session.list")}`
+              : "No matches"}
+          </text>
+        </box>
+      }
+      onSelect={(option) => {
+        dialog.clear()
+        if (option.value.type === "session") {
+          route.navigate({ type: "session", sessionID: option.value.sessionID })
+          return
+        }
+        const target = { directory: option.value.directory }
+        route.navigate({ type: "home", location: target })
+        location.set(target)
+      }}
+    />
+  )
+}
+
+function timeAgo(timestamp: number) {
+  const minutes = Math.floor((Date.now() - timestamp) / 60_000)
+  if (minutes < 1) return "now"
+  if (minutes < 60) return `${minutes}m`
+  const hours = Math.floor(minutes / 60)
+  if (hours < 24) return `${hours}h`
+  const days = Math.floor(hours / 24)
+  if (days < 30) return `${days}d`
+  const months = Math.floor(days / 30)
+  if (months < 12) return `${months}mo`
+  return `${Math.floor(days / 365)}y`
+}

packages/tui/src/component/dialog-retry-action.tsx

@@ -1,164 +0,0 @@
-import { RGBA, TextAttributes } from "@opentui/core"
-import open from "open"
-import { createSignal } from "solid-js"
-import { Keymap } from "../context/keymap"
-import { useTheme } from "../context/theme"
-import { useDialog, type DialogContext } from "../ui/dialog"
-import { Link } from "../ui/link"
-import { BgPulse } from "./bg-pulse"
-
-const GO_URL = "https://opencode.ai/go"
-const PAD_X = 3
-const PAD_TOP_OUTER = 1
-const FOREGROUND_ALPHA = 186
-
-export type DialogRetryActionProps = {
-  title: string
-  message: string
-  label: string
-  link?: string
-  onClose?: (dontShowAgain?: boolean) => void
-}
-
-function runAction(props: DialogRetryActionProps, dialog: ReturnType<typeof useDialog>) {
-  if (props.link) open(props.link).catch(() => {})
-  props.onClose?.()
-  dialog.clear()
-}
-
-function dismiss(props: DialogRetryActionProps, dialog: ReturnType<typeof useDialog>) {
-  props.onClose?.(true)
-  dialog.clear()
-}
-
-function panelOverlay(color: RGBA) {
-  const [r, g, b] = color.toInts()
-  return RGBA.fromInts(r, g, b, FOREGROUND_ALPHA)
-}
-
-export function DialogRetryAction(props: DialogRetryActionProps) {
-  const dialog = useDialog()
-  const theme = useTheme("elevated")
-  const showGoTreatment = () => props.link === GO_URL
-  const textBg = () => (showGoTreatment() ? panelOverlay(theme.background.default) : undefined)
-  const [selected, setSelected] = createSignal<"dismiss" | "action">("action")
-
-  Keymap.createLayer(() => ({
-    mode: "modal",
-    commands: [
-      {
-        bind: "left",
-        title: "Previous retry option",
-        group: "Dialog",
-        run: () => setSelected((value) => (value === "action" ? "dismiss" : "action")),
-      },
-      {
-        bind: "right",
-        title: "Next retry option",
-        group: "Dialog",
-        run: () => setSelected((value) => (value === "action" ? "dismiss" : "action")),
-      },
-      {
-        bind: "tab",
-        title: "Next retry option",
-        group: "Dialog",
-        run: () => setSelected((value) => (value === "action" ? "dismiss" : "action")),
-      },
-      {
-        bind: "return",
-        title: "Confirm retry option",
-        group: "Dialog",
-        run: () => {
-          if (selected() === "action") runAction(props, dialog)
-          else dismiss(props, dialog)
-        },
-      },
-    ],
-  }))
-
-  return (
-    <box>
-      {showGoTreatment() ? (
-        <box position="absolute" top={-PAD_TOP_OUTER} left={0} right={0} bottom={0} zIndex={0}>
-          <BgPulse />
-        </box>
-      ) : null}
-      <box zIndex={1} paddingLeft={PAD_X} paddingRight={PAD_X} paddingBottom={1} gap={1}>
-        <box flexDirection="row" justifyContent="space-between">
-          <text attributes={TextAttributes.BOLD} fg={theme.text.default} bg={textBg()}>
-            {props.title}
-          </text>
-          <text fg={theme.text.subdued} bg={textBg()} onMouseUp={() => dialog.clear()}>
-            esc
-          </text>
-        </box>
-        <box gap={0}>
-          <text fg={theme.text.subdued} bg={textBg()}>
-            {props.message}
-          </text>
-        </box>
-        {props.link ? (
-          showGoTreatment() ? (
-            <box alignItems="center" justifyContent="flex-end" height={7} paddingBottom={1}>
-              <Link href={props.link} fg={theme.markdown.link} bg={textBg()} wrapMode="none" />
-            </box>
-          ) : (
-            <box width="100%" flexDirection="row" justifyContent="center" paddingBottom={1}>
-              <Link href={props.link} fg={theme.markdown.link} wrapMode="none" />
-            </box>
-          )
-        ) : (
-          <box paddingBottom={1} />
-        )}
-        <box flexDirection="row" justifyContent="space-between">
-          <box
-            paddingLeft={2}
-            paddingRight={2}
-            backgroundColor={
-              selected() === "dismiss" ? theme.background.action.primary.focused : RGBA.fromInts(0, 0, 0, 0)
-            }
-            onMouseOver={() => setSelected("dismiss")}
-            onMouseUp={() => dismiss(props, dialog)}
-          >
-            <text
-              fg={selected() === "dismiss" ? theme.text.action.primary.focused : theme.text.subdued}
-              bg={selected() === "dismiss" ? undefined : textBg()}
-              attributes={selected() === "dismiss" ? TextAttributes.BOLD : undefined}
-            >
-              don't show again
-            </text>
-          </box>
-          <box
-            paddingLeft={2}
-            paddingRight={2}
-            backgroundColor={
-              selected() === "action" ? theme.background.action.primary.focused : RGBA.fromInts(0, 0, 0, 0)
-            }
-            onMouseOver={() => setSelected("action")}
-            onMouseUp={() => runAction(props, dialog)}
-          >
-            <text
-              fg={selected() === "action" ? theme.text.action.primary.focused : theme.text.default}
-              bg={selected() === "action" ? undefined : textBg()}
-              attributes={selected() === "action" ? TextAttributes.BOLD : undefined}
-            >
-              {props.label}
-            </text>
-          </box>
-        </box>
-      </box>
-    </box>
-  )
-}
-
-DialogRetryAction.show = (
-  dialog: DialogContext,
-  props: Pick<DialogRetryActionProps, "title" | "message" | "label" | "link">,
-) => {
-  return new Promise<boolean>((resolve) => {
-    dialog.replace(
-      () => <DialogRetryAction {...props} onClose={(dontShow) => resolve(dontShow ?? false)} />,
-      () => resolve(false),
-    )
-  })
-}

packages/tui/src/component/dialog-session-delete-failed.tsx

@@ -1,113 +0,0 @@
-import { TextAttributes } from "@opentui/core"
-import { Keymap } from "../context/keymap"
-import { useTheme } from "../context/theme"
-import { useDialog } from "../ui/dialog"
-import { createStore } from "solid-js/store"
-import { For } from "solid-js"
-
-export function DialogSessionDeleteFailed(props: {
-  session: string
-  workspace: string
-  onDelete?: () => boolean | void | Promise<boolean | void>
-  onRestore?: () => boolean | void | Promise<boolean | void>
-  onDone?: () => void
-}) {
-  const dialog = useDialog()
-  const theme = useTheme("elevated")
-  const [store, setStore] = createStore({
-    active: "delete" as "delete" | "restore",
-  })
-
-  const options = [
-    {
-      id: "delete" as const,
-      title: "Delete workspace",
-      description: "Delete the workspace and all sessions attached to it.",
-      run: props.onDelete,
-    },
-    {
-      id: "restore" as const,
-      title: "Restore to new workspace",
-      description: "Try to restore this session into a new workspace.",
-      run: props.onRestore,
-    },
-  ]
-
-  async function confirm() {
-    const result = await options.find((item) => item.id === store.active)?.run?.()
-    if (result === false) return
-    props.onDone?.()
-    if (!props.onDone) dialog.clear()
-  }
-
-  Keymap.createLayer(() => ({
-    mode: "modal",
-    commands: [
-      { bind: "return", title: "Confirm recovery option", group: "Dialog", run: () => void confirm() },
-      { bind: "left", title: "Delete broken session", group: "Dialog", run: () => setStore("active", "delete") },
-      { bind: "up", title: "Delete broken session", group: "Dialog", run: () => setStore("active", "delete") },
-      {
-        bind: "right",
-        title: "Restore broken session",
-        group: "Dialog",
-        run: () => setStore("active", "restore"),
-      },
-      {
-        bind: "down",
-        title: "Restore broken session",
-        group: "Dialog",
-        run: () => setStore("active", "restore"),
-      },
-    ],
-  }))
-
-  return (
-    <box paddingLeft={2} paddingRight={2} gap={1}>
-      <box flexDirection="row" justifyContent="space-between">
-        <text attributes={TextAttributes.BOLD} fg={theme.text.default}>
-          Failed to Delete Session
-        </text>
-        <text fg={theme.text.subdued} onMouseUp={() => dialog.clear()}>
-          esc
-        </text>
-      </box>
-      <text fg={theme.text.subdued} wrapMode="word">
-        {`The session "${props.session}" could not be deleted because the workspace "${props.workspace}" is not available.`}
-      </text>
-      <text fg={theme.text.subdued} wrapMode="word">
-        Choose how you want to recover this broken workspace session.
-      </text>
-      <box flexDirection="column" paddingBottom={1} gap={1}>
-        <For each={options}>
-          {(item) => (
-            <box
-              flexDirection="column"
-              paddingLeft={1}
-              paddingRight={1}
-              paddingTop={1}
-              paddingBottom={1}
-              backgroundColor={item.id === store.active ? theme.background.action.primary.focused : undefined}
-              onMouseUp={() => {
-                setStore("active", item.id)
-                void confirm()
-              }}
-            >
-              <text
-                attributes={TextAttributes.BOLD}
-                fg={item.id === store.active ? theme.text.action.primary.focused : theme.text.default}
-              >
-                {item.title}
-              </text>
-              <text
-                fg={item.id === store.active ? theme.text.action.primary.focused : theme.text.subdued}
-                wrapMode="word"
-              >
-                {item.description}
-              </text>
-            </box>
-          )}
-        </For>
-      </box>
-    </box>
-  )
-}