refactor(session): remove summary async facades

packages/opencode/src/server/instance/session.ts

@@ -474,10 +474,14 @@ export const SessionRoutes = lazy(() =>
       async (c) => {
         const query = c.req.valid("query")
         const params = c.req.valid("param")
-        const result = await SessionSummary.diff({
-          sessionID: params.sessionID,
-          messageID: query.messageID,
-        })
+        const result = await AppRuntime.runPromise(
+          SessionSummary.Service.use((summary) =>
+            summary.diff({
+              sessionID: params.sessionID,
+              messageID: query.messageID,
+            }),
+          ),
+        )
         return c.json(result)
       },
     )

packages/opencode/src/session/processor.ts

@@ -1,4 +1,4 @@
-import { Cause, Deferred, Effect, Layer, Context } from "effect"
+import { Cause, Deferred, Effect, Layer, Context, Scope } from "effect"
 import * as Stream from "effect/Stream"
 import { Agent } from "@/agent/agent"
 import { Bus } from "@/bus"
@@ -89,6 +89,7 @@ export namespace SessionProcessor {
     | LLM.Service
     | Permission.Service
     | Plugin.Service
+    | SessionSummary.Service
     | SessionStatus.Service
   > = Layer.effect(
     Service,
@@ -101,6 +102,8 @@ export namespace SessionProcessor {
       const llm = yield* LLM.Service
       const permission = yield* Permission.Service
       const plugin = yield* Plugin.Service
+      const summary = yield* SessionSummary.Service
+      const scope = yield* Scope.Scope
       const status = yield* SessionStatus.Service
 
       const create = Effect.fn("SessionProcessor.create")(function* (input: Input) {
@@ -385,10 +388,12 @@ export namespace SessionProcessor {
                 }
                 ctx.snapshot = undefined
               }
-              SessionSummary.summarize({
-                sessionID: ctx.sessionID,
-                messageID: ctx.assistantMessage.parentID,
-              })
+              yield* summary
+                .summarize({
+                  sessionID: ctx.sessionID,
+                  messageID: ctx.assistantMessage.parentID,
+                })
+                .pipe(Effect.ignore, Effect.forkIn(scope))
               if (
                 !ctx.assistantMessage.summary &&
                 isOverflow({ cfg: yield* config.get(), tokens: usage.tokens, model: ctx.model })
@@ -603,6 +608,7 @@ export namespace SessionProcessor {
       Layer.provide(LLM.defaultLayer),
       Layer.provide(Permission.defaultLayer),
       Layer.provide(Plugin.defaultLayer),
+      Layer.provide(SessionSummary.defaultLayer),
       Layer.provide(SessionStatus.defaultLayer),
       Layer.provide(Bus.layer),
       Layer.provide(Config.defaultLayer),

packages/opencode/src/session/prompt.ts

@@ -102,6 +102,7 @@ export namespace SessionPrompt {
       const instruction = yield* Instruction.Service
       const state = yield* SessionRunState.Service
       const revert = yield* SessionRevert.Service
+      const summary = yield* SessionSummary.Service
       const sys = yield* SystemPrompt.Service
       const llm = yield* LLM.Service
 
@@ -1444,7 +1445,10 @@ NOTE: At any point in time through this workflow you should feel free to ask the
                 })
               }
 
-              if (step === 1) SessionSummary.summarize({ sessionID, messageID: lastUser.id })
+              if (step === 1)
+                yield* summary
+                  .summarize({ sessionID, messageID: lastUser.id })
+                  .pipe(Effect.ignore, Effect.forkIn(scope))
 
               if (step > 1 && lastFinished) {
                 for (const m of msgs) {
@@ -1692,6 +1696,7 @@ NOTE: At any point in time through this workflow you should feel free to ask the
       Layer.provide(Plugin.defaultLayer),
       Layer.provide(Session.defaultLayer),
       Layer.provide(SessionRevert.defaultLayer),
+      Layer.provide(SessionSummary.defaultLayer),
       Layer.provide(
         Layer.mergeAll(
           Agent.defaultLayer,

packages/opencode/src/session/summary.ts

@@ -1,6 +1,5 @@
 import z from "zod"
 import { Effect, Layer, Context } from "effect"
-import { makeRuntime } from "@/effect/run-service"
 import { Bus } from "@/bus"
 import { Snapshot } from "@/snapshot"
 import { Storage } from "@/storage/storage"
@@ -159,17 +158,8 @@ export namespace SessionSummary {
     ),
   )
 
-  const { runPromise } = makeRuntime(Service, defaultLayer)
-
-  export const summarize = (input: { sessionID: SessionID; messageID: MessageID }) =>
-    void runPromise((svc) => svc.summarize(input)).catch(() => {})
-
   export const DiffInput = z.object({
     sessionID: SessionID.zod,
     messageID: MessageID.zod.optional(),
   })
-
-  export async function diff(input: z.infer<typeof DiffInput>) {
-    return runPromise((svc) => svc.diff(input))
-  }
 }

packages/opencode/test/session/compaction.test.ts

@@ -18,6 +18,7 @@ import { Session } from "../../src/session"
 import { MessageV2 } from "../../src/session/message-v2"
 import { MessageID, PartID, SessionID } from "../../src/session/schema"
 import { SessionStatus } from "../../src/session/status"
+import { SessionSummary } from "../../src/session/summary"
 import { ModelID, ProviderID } from "../../src/provider/schema"
 import type { Provider } from "../../src/provider/provider"
 import * as SessionProcessorModule from "../../src/session/processor"
@@ -26,6 +27,15 @@ import { ProviderTest } from "../fake/provider"
 
 Log.init({ print: false })
 
+const summary = Layer.succeed(
+  SessionSummary.Service,
+  SessionSummary.Service.of({
+    summarize: () => Effect.void,
+    diff: () => Effect.succeed([]),
+    computeDiff: () => Effect.succeed([]),
+  }),
+)
+
 const ref = {
   providerID: ProviderID.make("test"),
   modelID: ModelID.make("test-model"),
@@ -194,7 +204,7 @@ function llm() {
 function liveRuntime(layer: Layer.Layer<LLM.Service>, provider = ProviderTest.fake()) {
   const bus = Bus.layer
   const status = SessionStatus.layer.pipe(Layer.provide(bus))
-  const processor = SessionProcessorModule.SessionProcessor.layer
+  const processor = SessionProcessorModule.SessionProcessor.layer.pipe(Layer.provide(summary))
   return ManagedRuntime.make(
     Layer.mergeAll(SessionCompaction.layer.pipe(Layer.provide(processor)), processor, bus, status).pipe(
       Layer.provide(provider.layer),

packages/opencode/test/session/processor-effect.test.ts

@@ -16,6 +16,7 @@ import { MessageV2 } from "../../src/session/message-v2"
 import { SessionProcessor } from "../../src/session/processor"
 import { MessageID, PartID, SessionID } from "../../src/session/schema"
 import { SessionStatus } from "../../src/session/status"
+import { SessionSummary } from "../../src/session/summary"
 import { Snapshot } from "../../src/snapshot"
 import { Log } from "../../src/util/log"
 import * as CrossSpawnSpawner from "../../src/effect/cross-spawn-spawner"
@@ -25,6 +26,15 @@ import { raw, reply, TestLLMServer } from "../lib/llm-server"
 
 Log.init({ print: false })
 
+const summary = Layer.succeed(
+  SessionSummary.Service,
+  SessionSummary.Service.of({
+    summarize: () => Effect.void,
+    diff: () => Effect.succeed([]),
+    computeDiff: () => Effect.succeed([]),
+  }),
+)
+
 const ref = {
   providerID: ProviderID.make("test"),
   modelID: ModelID.make("test-model"),
@@ -156,7 +166,10 @@ const deps = Layer.mergeAll(
   Provider.defaultLayer,
   status,
 ).pipe(Layer.provideMerge(infra))
-const env = Layer.mergeAll(TestLLMServer.layer, SessionProcessor.layer.pipe(Layer.provideMerge(deps)))
+const env = Layer.mergeAll(
+  TestLLMServer.layer,
+  SessionProcessor.layer.pipe(Layer.provide(summary), Layer.provideMerge(deps)),
+)
 
 const it = testEffect(env)
 

packages/opencode/test/session/prompt-effect.test.ts

@@ -23,6 +23,7 @@ import { LLM } from "../../src/session/llm"
 import { MessageV2 } from "../../src/session/message-v2"
 import { AppFileSystem } from "../../src/filesystem"
 import { SessionCompaction } from "../../src/session/compaction"
+import { SessionSummary } from "../../src/session/summary"
 import { Instruction } from "../../src/session/instruction"
 import { SessionProcessor } from "../../src/session/processor"
 import { SessionPrompt } from "../../src/session/prompt"
@@ -46,6 +47,15 @@ import { reply, TestLLMServer } from "../lib/llm-server"
 
 Log.init({ print: false })
 
+const summary = Layer.succeed(
+  SessionSummary.Service,
+  SessionSummary.Service.of({
+    summarize: () => Effect.void,
+    diff: () => Effect.succeed([]),
+    computeDiff: () => Effect.succeed([]),
+  }),
+)
+
 const ref = {
   providerID: ProviderID.make("test"),
   modelID: ModelID.make("test-model"),
@@ -182,12 +192,13 @@ function makeHttp() {
     Layer.provideMerge(deps),
   )
   const trunc = Truncate.layer.pipe(Layer.provideMerge(deps))
-  const proc = SessionProcessor.layer.pipe(Layer.provideMerge(deps))
+  const proc = SessionProcessor.layer.pipe(Layer.provide(summary), Layer.provideMerge(deps))
   const compact = SessionCompaction.layer.pipe(Layer.provideMerge(proc), Layer.provideMerge(deps))
   return Layer.mergeAll(
     TestLLMServer.layer,
     SessionPrompt.layer.pipe(
       Layer.provide(SessionRevert.defaultLayer),
+      Layer.provide(summary),
       Layer.provideMerge(run),
       Layer.provideMerge(compact),
       Layer.provideMerge(proc),

packages/opencode/test/session/snapshot-tool-race.test.ts

@@ -146,12 +146,14 @@ function makeHttp() {
     Layer.provideMerge(deps),
   )
   const trunc = Truncate.layer.pipe(Layer.provideMerge(deps))
-  const proc = SessionProcessor.layer.pipe(Layer.provideMerge(deps))
+  const proc = SessionProcessor.layer.pipe(Layer.provide(SessionSummary.defaultLayer), Layer.provideMerge(deps))
   const compact = SessionCompaction.layer.pipe(Layer.provideMerge(proc), Layer.provideMerge(deps))
   return Layer.mergeAll(
     TestLLMServer.layer,
+    SessionSummary.defaultLayer,
     SessionPrompt.layer.pipe(
       Layer.provide(SessionRevert.defaultLayer),
+      Layer.provide(SessionSummary.defaultLayer),
       Layer.provideMerge(run),
       Layer.provideMerge(compact),
       Layer.provideMerge(proc),
@@ -200,6 +202,7 @@ it.live("tool execution produces non-empty session diff (snapshot race)", () =>
     Effect.fnUntraced(function* ({ dir, llm }) {
       const prompt = yield* SessionPrompt.Service
       const sessions = yield* Session.Service
+      const summary = yield* SessionSummary.Service
 
       const session = yield* sessions.create({
         title: "snapshot race test",
@@ -244,9 +247,9 @@ it.live("tool execution produces non-empty session diff (snapshot race)", () =>
       expect(tool?.state.status).toBe("completed")
 
       // Poll for diff — summarize() is fire-and-forget
-      let diff: Awaited<ReturnType<typeof SessionSummary.diff>> = []
+      let diff: Array<{ file: string }> = []
       for (let i = 0; i < 50; i++) {
-        diff = yield* Effect.promise(() => SessionSummary.diff({ sessionID: session.id }))
+        diff = yield* summary.diff({ sessionID: session.id })
         if (diff.length > 0) break
         yield* Effect.sleep("100 millis")
       }