feat: add experimental background subagents (#27084)

packages/opencode/src/tool/registry.ts

@@ -7,6 +7,7 @@ import { GlobTool } from "./glob"
 import { GrepTool } from "./grep"
 import { ReadTool } from "./read"
 import { TaskTool } from "./task"
+import { TaskStatusTool } from "./task_status"
 import { TodoWriteTool } from "./todo"
 import { WebFetchTool } from "./webfetch"
 import { WriteTool } from "./write"
@@ -49,6 +50,8 @@ import { Git } from "@/git"
 import { Skill } from "../skill"
 import { Permission } from "@/permission"
 import { Reference } from "@/reference/reference"
+import { BackgroundJob } from "@/background/job"
+import { SessionStatus } from "@/session/status"
 import { RuntimeFlags } from "@/effect/runtime-flags"
 
 const log = Log.create({ service: "tool.registry" })
@@ -86,6 +89,8 @@ export const layer: Layer.Layer<
   | Agent.Service
   | Skill.Service
   | Session.Service
+  | SessionStatus.Service
+  | BackgroundJob.Service
   | Provider.Service
   | Git.Service
   | Reference.Service
@@ -111,6 +116,7 @@ export const layer: Layer.Layer<
 
     const invalid = yield* InvalidTool
     const task = yield* TaskTool
+    const taskStatus = yield* TaskStatusTool
     const read = yield* ReadTool
     const question = yield* QuestionTool
     const todo = yield* TodoWriteTool
@@ -219,6 +225,7 @@ export const layer: Layer.Layer<
           edit: Tool.init(edit),
           write: Tool.init(writetool),
           task: Tool.init(task),
+          task_status: Tool.init(taskStatus),
           fetch: Tool.init(webfetch),
           todo: Tool.init(todo),
           search: Tool.init(websearch),
@@ -243,6 +250,7 @@ export const layer: Layer.Layer<
             tool.edit,
             tool.write,
             tool.task,
+            ...(flags.experimentalBackgroundSubagents ? [tool.task_status] : []),
             tool.fetch,
             tool.todo,
             tool.search,
@@ -358,28 +366,30 @@ export const layer: Layer.Layer<
 )
 
 export const defaultLayer = Layer.suspend(() =>
-  layer.pipe(
-    Layer.provide(Config.defaultLayer),
-    Layer.provide(Plugin.defaultLayer),
-    Layer.provide(Question.defaultLayer),
-    Layer.provide(Todo.defaultLayer),
-    Layer.provide(Skill.defaultLayer),
-    Layer.provide(Agent.defaultLayer),
-    Layer.provide(Session.defaultLayer),
-    Layer.provide(Provider.defaultLayer),
-    Layer.provide(Git.defaultLayer),
-    Layer.provide(Reference.defaultLayer),
-    Layer.provide(LSP.defaultLayer),
-    Layer.provide(Instruction.defaultLayer),
-    Layer.provide(AppFileSystem.defaultLayer),
-    Layer.provide(Bus.layer),
-    Layer.provide(FetchHttpClient.layer),
-    Layer.provide(Format.defaultLayer),
-    Layer.provide(CrossSpawnSpawner.defaultLayer),
-    Layer.provide(Ripgrep.defaultLayer),
-    Layer.provide(Truncate.defaultLayer),
-    Layer.provide(RuntimeFlags.defaultLayer),
-  ),
+  layer
+    .pipe(
+      Layer.provide(Config.defaultLayer),
+      Layer.provide(Plugin.defaultLayer),
+      Layer.provide(Question.defaultLayer),
+      Layer.provide(Todo.defaultLayer),
+      Layer.provide(Skill.defaultLayer),
+      Layer.provide(Agent.defaultLayer),
+      Layer.provide(Session.defaultLayer),
+      Layer.provide(Layer.mergeAll(SessionStatus.defaultLayer, BackgroundJob.defaultLayer)),
+      Layer.provide(Provider.defaultLayer),
+      Layer.provide(Git.defaultLayer),
+      Layer.provide(Reference.defaultLayer),
+      Layer.provide(LSP.defaultLayer),
+      Layer.provide(Instruction.defaultLayer),
+      Layer.provide(AppFileSystem.defaultLayer),
+      Layer.provide(Bus.layer),
+      Layer.provide(FetchHttpClient.layer),
+      Layer.provide(Format.defaultLayer),
+      Layer.provide(CrossSpawnSpawner.defaultLayer),
+      Layer.provide(Ripgrep.defaultLayer),
+      Layer.provide(Truncate.defaultLayer),
+    )
+    .pipe(Layer.provide(RuntimeFlags.defaultLayer)),
 )
 
 function isZodType(value: unknown): value is z.ZodType {