fix(opencode): restore global sync event compatibility

packages/opencode/test/server/httpapi-public-openapi.test.ts

@@ -3,7 +3,13 @@ import { OpenApi } from "effect/unstable/httpapi"
 import { PublicApi } from "../../src/server/routes/instance/httpapi/public"
 
 type Method = "get" | "post" | "put" | "delete" | "patch"
-type OpenApiSchema = { readonly $ref?: string }
+type OpenApiSchema = {
+  readonly $ref?: string
+  readonly type?: string
+  readonly enum?: readonly unknown[]
+  readonly properties?: Record<string, OpenApiSchema>
+  readonly required?: readonly string[]
+}
 type OpenApiResponse = {
   readonly description?: string
   readonly content?: Record<string, { readonly schema?: OpenApiSchema }>
@@ -19,7 +25,10 @@ type OpenApiOperation = {
   readonly security?: unknown
 }
 type OpenApiPathItem = Partial<Record<Method, OpenApiOperation>>
-type OpenApiSpec = { readonly paths: Record<string, OpenApiPathItem> }
+type OpenApiSpec = {
+  readonly paths: Record<string, OpenApiPathItem>
+  readonly components: { readonly schemas: Record<string, OpenApiSchema> }
+}
 
 const methods = ["get", "post", "put", "delete", "patch"] as const
 
@@ -49,6 +58,23 @@ function isBuiltInEndpointError(name: string) {
 }
 
 describe("PublicApi OpenAPI v2 errors", () => {
+  test("documents nested legacy global sync events", () => {
+    const spec = OpenApi.fromApi(PublicApi) as OpenApiSpec
+    const schema = spec.components.schemas.SyncEventSessionCreated
+
+    expect(schema?.required).toEqual(["type", "id", "syncEvent"])
+    expect(schema?.properties?.type?.enum).toEqual(["sync"])
+    expect(schema?.properties?.syncEvent).toMatchObject({
+      required: ["type", "id", "seq", "aggregateID", "data"],
+      properties: {
+        type: { enum: ["session.created.1"] },
+        id: { type: "string" },
+        seq: { type: "number" },
+        aggregateID: { type: "string" },
+      },
+    })
+  })
+
   test("preserves /api auth responses", () => {
     const spec = OpenApi.fromApi(PublicApi) as OpenApiSpec
 

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

@@ -1,6 +1,7 @@
 import { describe, expect } from "bun:test"
 import { SessionV1 } from "@opencode-ai/core/v1/session"
 import { Database } from "@opencode-ai/core/database/database"
+import { EventV2 } from "@opencode-ai/core/event"
 import { SessionProjector } from "@opencode-ai/core/session/projector"
 import { Deferred, Effect, Exit, Layer } from "effect"
 import { Session as SessionNs } from "@/session/session"
@@ -14,6 +15,7 @@ import { Storage } from "@/storage/storage"
 import { RuntimeFlags } from "@/effect/runtime-flags"
 import { BackgroundJob } from "@/background/job"
 import { EventV2Bridge } from "@/event-v2-bridge"
+import { GlobalBus } from "@/bus/global"
 
 void Log.init({ print: false })
 
@@ -101,6 +103,31 @@ describe("session.created event", () => {
       yield* session.remove(info.id)
     }),
   )
+
+  it.instance("emits legacy global sync payload", () =>
+    Effect.gen(function* () {
+      const session = yield* SessionNs.Service
+      const received = yield* Deferred.make<{ syncEvent: EventV2.SerializedEvent }>()
+      const listener = (event: { payload: { type?: string; syncEvent?: EventV2.SerializedEvent } }) => {
+        if (event.payload.type === "sync" && event.payload.syncEvent)
+          Deferred.doneUnsafe(received, Effect.succeed({ syncEvent: event.payload.syncEvent }))
+      }
+      GlobalBus.on("event", listener)
+      yield* Effect.addFinalizer(() => Effect.sync(() => GlobalBus.off("event", listener)))
+
+      const info = yield* session.create({})
+      const event = yield* awaitDeferred(received, "timed out waiting for legacy global sync event")
+
+      expect(event.syncEvent).toMatchObject({
+        type: EventV2.versionedType(SessionNs.Event.Created.type, 1),
+        seq: 0,
+        aggregateID: info.id,
+        data: { sessionID: info.id },
+      })
+
+      yield* session.remove(info.id)
+    }),
+  )
 })
 
 describe("step-finish token propagation via event", () => {