feat(sdk): restore session runtime operations (#33777)

packages/sdk-next/README.md

@@ -11,7 +11,9 @@ const opencode = yield * OpenCode.create()
 const session = yield * opencode.sessions.get({ sessionID })
 ```
 
-It also exposes local-only `tools.register(...)`. Closing the owning Effect Scope releases router resources, location services, fibers, and scoped tool registrations.
+It also exports `Tool` and exposes local-only `tools.register(...)`, replacing the former `@opencode-ai/core/public` facade. Registration uses Core's host-level `ApplicationTools` service shared by the host's Locations; each Location retains its own `ToolRegistry` for overlay, lookup, and settlement. Closing the owning Effect Scope releases router resources, location services, fibers, and scoped tool registrations.
+
+`sessions.events({ sessionID, after })` replays durable events after the optional aggregate sequence, then emits newly committed durable events. `sessions.interrupt(...)` targets execution owned by this host, and `sessions.message(...)` retrieves one projected Session message.
 
 The same constructor is available as a service Layer:
 

packages/sdk-next/src/opencode.ts

@@ -2,43 +2,37 @@ import { OpenCode } from "@opencode-ai/client/effect"
 import { PermissionSaved } from "@opencode-ai/core/permission/saved"
 import { ApplicationTools } from "@opencode-ai/core/tool/application-tools"
 import { createEmbeddedRoutes } from "@opencode-ai/server/routes"
-import { Cause, Context, Effect, Layer } from "effect"
-import {
-  HttpClient,
-  HttpRouter,
-  HttpServer,
-  HttpServerError,
-  HttpServerRequest,
-  HttpServerResponse,
-} from "effect/unstable/http"
+import { Context, Effect, Layer, Scope } from "effect"
+import { FetchHttpClient, HttpRouter, HttpServer } from "effect/unstable/http"
 
 export const create = Effect.fn("OpenCode.create")(function* () {
-  const applicationTools = ApplicationTools.layer
-  const { handler, permissions, tools } = yield* Effect.all({
-    // Reusing this Layer value lets registration and every Location share one memoized host-level registry.
-    handler: HttpRouter.toHttpEffect(
-      createEmbeddedRoutes().pipe(Layer.provide(applicationTools), Layer.provide(HttpServer.layerServices)),
-    ),
-    permissions: PermissionSaved.Service,
-    tools: ApplicationTools.Service,
-  }).pipe(Effect.provide(Layer.merge(applicationTools, PermissionSaved.defaultLayer)))
-  const httpClient = HttpClient.make(
-    Effect.fnUntraced(function* (request) {
-      const response = yield* handler.pipe(
-        Effect.provideService(HttpServerRequest.HttpServerRequest, HttpServerRequest.fromClientRequest(request)),
-        Effect.provideService(ApplicationTools.Service, tools),
-        Effect.provideService(PermissionSaved.Service, permissions),
-        Effect.catchCause((cause) =>
-          Cause.hasInterruptsOnly(cause)
-            ? Effect.interrupt
-            : HttpServerError.causeResponse(cause).pipe(Effect.map(([response]) => response)),
-        ),
-      )
-      return HttpServerResponse.toClientResponse(response, { request })
-    }, Effect.scoped),
+  const scope = yield* Scope.Scope
+  const memoMap = yield* Layer.makeMemoMap
+  const context = yield* Layer.buildWithMemoMap(
+    Layer.merge(ApplicationTools.layer, PermissionSaved.defaultLayer),
+    memoMap,
+    scope,
   )
+  const tools = Context.get(context, ApplicationTools.Service)
+  const permissions = Context.get(context, PermissionSaved.Service)
+  const web = yield* Effect.acquireRelease(
+    Effect.sync(() =>
+      HttpRouter.toWebHandler(
+        createEmbeddedRoutes().pipe(
+          HttpRouter.provideRequest(Layer.succeed(PermissionSaved.Service, permissions)),
+          Layer.provide(HttpServer.layerServices),
+        ),
+        { disableLogger: true, memoMap },
+      ),
+    ),
+    (web) => Effect.promise(web.dispose),
+  )
+  const fetch = Object.assign((input: RequestInfo | URL, init?: RequestInit) => web.handler(new Request(input, init)), {
+    preconnect: () => undefined,
+  }) satisfies typeof globalThis.fetch
   const client = yield* OpenCode.make({ baseUrl: "http://opencode.local" }).pipe(
-    Effect.provideService(HttpClient.HttpClient, httpClient),
+    Effect.provide(FetchHttpClient.layer),
+    Effect.provideService(FetchHttpClient.Fetch, fetch),
   )
   return {
     ...client,

packages/sdk-next/test/embedded.test.ts

@@ -3,7 +3,7 @@ import { mkdtemp, rm } from "node:fs/promises"
 import { tmpdir } from "node:os"
 import { join } from "node:path"
 import { Flag } from "@opencode-ai/core/flag/flag"
-import { Effect, Schema } from "effect"
+import { Effect, Option, Schema, Stream } from "effect"
 
 test("embedded client uses the real router and handlers", async () => {
   const directory = await mkdtemp(join(tmpdir(), "opencode-embedded-"))
@@ -39,8 +39,31 @@ test("embedded client uses the real router and handlers", async () => {
         resume: false,
       })
       const context = yield* opencode.sessions.context({ sessionID })
-      const missing = yield* Effect.flip(
-        opencode.sessions.get({ sessionID: Session.ID.make(`ses_missing_${crypto.randomUUID()}`) }),
+      const event = yield* opencode.sessions
+        .events({ sessionID })
+        .pipe(Stream.take(1), Stream.runHead, Effect.map(Option.getOrUndefined))
+      const modelMessage = Option.fromNullishOr(context.find((message) => message.type === "model-switched")).pipe(
+        Option.getOrThrow,
+      )
+      const message = yield* opencode.sessions.message({ sessionID, messageID: modelMessage.id })
+      yield* opencode.sessions.interrupt({ sessionID })
+      const other = yield* opencode.sessions.create({
+        location: Location.Ref.make({ directory: AbsolutePath.make(directory) }),
+      })
+      const missingSessionID = Session.ID.make(`ses_missing_${crypto.randomUUID()}`)
+      const missing = yield* Effect.all(
+        [
+          opencode.sessions.events({ sessionID: missingSessionID }).pipe(Stream.runHead, Effect.flip),
+          opencode.sessions.interrupt({ sessionID: missingSessionID }).pipe(Effect.flip),
+          opencode.sessions.message({ sessionID: missingSessionID, messageID: modelMessage.id }).pipe(Effect.flip),
+        ],
+        { concurrency: "unbounded" },
+      )
+      const missingMessage = yield* Effect.flip(
+        opencode.sessions.message({
+          sessionID: other.id,
+          messageID: modelMessage.id,
+        }),
       )
 
       expect(created.id).toBe(sessionID)
@@ -49,7 +72,14 @@ test("embedded client uses the real router and handlers", async () => {
       expect(page.data.some((session) => session.id === sessionID)).toBe(true)
       expect(admitted.sessionID).toBe(sessionID)
       expect(context.some((message) => message.type === "model-switched")).toBe(true)
-      expect(missing._tag).toBe("SessionNotFoundError")
+      expect(event).toMatchObject({ type: "session.next.model.switched", durable: { seq: 1 } })
+      expect(message).toEqual(modelMessage)
+      expect(missing.map((error) => error._tag)).toEqual([
+        "SessionNotFoundError",
+        "SessionNotFoundError",
+        "SessionNotFoundError",
+      ])
+      expect(missingMessage._tag).toBe("MessageNotFoundError")
     })
     await Effect.runPromise(Effect.scoped(program))
   } finally {