feat(tui): refresh agents after update events

packages/core/src/agent.ts

@@ -3,6 +3,7 @@ export * as AgentV2 from "./agent"
 import { makeLocationNode } from "./effect/app-node"
 import { Array, Context, Effect, Layer, Types } from "effect"
 import { Agent } from "@opencode-ai/schema/agent"
+import { EventV2 } from "./event"
 import { State } from "./state"
 
 export const ID = Agent.ID
@@ -14,6 +15,8 @@ export const Color = Agent.Color
 export const Info = Agent.Info
 export type Info = Agent.Info
 
+export const Event = Agent.Event
+
 export interface Selection {
   readonly id: ID
   readonly info: Info | undefined
@@ -45,6 +48,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/v2
 export const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
+    const events = yield* EventV2.Service
     const state = State.create<Data, Draft>({
       initial: () => ({ agents: new Map() }),
       draft: (draft) => ({
@@ -63,6 +67,7 @@ export const layer = Layer.effect(
           draft.agents.delete(id)
         },
       }),
+      finalize: () => events.publish(Event.Updated, {}).pipe(Effect.asVoid),
     })
     const selectable = (agent: Info | undefined) =>
       agent && agent.mode !== "subagent" && !agent.hidden ? agent : undefined
@@ -108,4 +113,4 @@ export const layer = Layer.effect(
 
 export const locationLayer = layer
 
-export const node = makeLocationNode({ service: Service, layer, deps: [] })
+export const node = makeLocationNode({ service: Service, layer, deps: [EventV2.node] })

packages/core/src/config/plugin/agent.ts

@@ -60,6 +60,7 @@ export const Plugin = define({
         const configuredDefault = Config.latest(documents, "default_agent")
         if (configuredDefault !== undefined) draft.default(AgentV2.ID.make(configuredDefault))
         for (const current of draft.list()) {
+          yield* Effect.log({ msg: "applying permissions", id: current.id, permissions: global })
           draft.update(current.id, (agent) => agent.permissions.push(...global))
         }
 

packages/core/src/config/plugin/external.ts

@@ -76,7 +76,7 @@ export const Plugin = define({
             ? pathToFileURL(ref.package).href
             : (yield* npm.add(ref.package)).entrypoint
           if (!entrypoint) return
-
+          yield* Effect.log({ msg: "loading plugin", id: ref.package, entrypoint })
           const mod = yield* Effect.promise(() => import(entrypoint))
           const value = (yield* Schema.decodeUnknownEffect(PluginModule)(mod)).default
           const plugin = "effect" in value ? value : PluginPromise.fromPromise(value)
@@ -86,6 +86,6 @@ export const Plugin = define({
           })
         }).pipe(Effect.ignoreCause)
       }
-    }).pipe(Effect.forkScoped({ startImmediately: true }))
+    })
   }),
 })

packages/core/src/plugin/internal.ts

@@ -114,11 +114,11 @@ const layer = Layer.effectDiscard(
         yield* add(CommandPlugin.Plugin)
         yield* add(SkillPlugin.Plugin)
         yield* add(ModelsDevPlugin)
+        yield* add(ConfigExternalPlugin.Plugin)
         yield* add(ConfigAgentPlugin.Plugin)
         yield* add(ConfigCommandPlugin.Plugin)
         yield* add(ConfigSkillPlugin.Plugin)
         for (const item of ProviderPlugins) yield* add(item)
-        yield* add(ConfigExternalPlugin.Plugin)
         yield* add(ConfigProviderPlugin.Plugin)
         yield* add(VariantPlugin.Plugin)
         // Embedder-contributed plugins are added last so they layer over config.

packages/core/test/agent.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect } from "bun:test"
-import { Effect, Exit, Scope } from "effect"
+import { Effect, Exit, Fiber, Layer, Scope, Stream } from "effect"
 import { AgentV2 } from "@opencode-ai/core/agent"
+import { EventV2 } from "@opencode-ai/core/event"
 import { Location } from "@opencode-ai/core/location"
 import { AgentPlugin } from "@opencode-ai/core/plugin/agent"
 import { AbsolutePath } from "@opencode-ai/core/schema"
@@ -8,9 +9,32 @@ import { location } from "./fixture/location"
 import { testEffect } from "./lib/effect"
 import { agentHost, host } from "./plugin/host"
 
-const it = testEffect(AgentV2.locationLayer)
+const testLocation = location({ directory: AbsolutePath.make("/project") })
+const locationLayer = Layer.succeed(Location.Service, Location.Service.of(testLocation))
+
+const it = testEffect(
+  AgentV2.locationLayer.pipe(
+    Layer.provideMerge(EventV2.defaultLayer),
+    Layer.provideMerge(locationLayer),
+  ),
+)
 
 describe("AgentV2", () => {
+  it.effect("publishes an updated event after agent changes", () =>
+    Effect.gen(function* () {
+      const agent = yield* AgentV2.Service
+      const events = yield* EventV2.Service
+      const updated = yield* events
+        .subscribe(AgentV2.Event.Updated)
+        .pipe(Stream.take(1), Stream.runCollect, Effect.forkScoped)
+      yield* Effect.yieldNow
+
+      yield* agent.transform((editor) => editor.update(AgentV2.ID.make("reviewer"), () => {}))
+
+      expect(yield* Fiber.join(updated)).toMatchObject([{ location: { directory: testLocation.directory } }])
+    }),
+  )
+
   it.effect("starts without agents", () =>
     Effect.gen(function* () {
       const agent = yield* AgentV2.Service

packages/core/test/config/agent.test.ts

@@ -5,6 +5,7 @@ import { Effect, Layer, Schema } from "effect"
 import { AgentV2 } from "@opencode-ai/core/agent"
 import { Config } from "@opencode-ai/core/config"
 import { ConfigAgentPlugin } from "@opencode-ai/core/config/plugin/agent"
+import { EventV2 } from "@opencode-ai/core/event"
 import { FSUtil } from "@opencode-ai/core/fs-util"
 import { PermissionV2 } from "@opencode-ai/core/permission"
 import { AbsolutePath } from "@opencode-ai/core/schema"
@@ -12,7 +13,9 @@ import { tmpdir } from "../fixture/tmpdir"
 import { testEffect } from "../lib/effect"
 import { agentHost, host } from "../plugin/host"
 
-const it = testEffect(Layer.mergeAll(AgentV2.locationLayer, FSUtil.defaultLayer))
+const it = testEffect(
+  Layer.mergeAll(AgentV2.locationLayer.pipe(Layer.provideMerge(EventV2.defaultLayer)), FSUtil.defaultLayer),
+)
 const decode = Schema.decodeUnknownSync(Config.Info)
 
 describe("ConfigAgentPlugin.Plugin", () => {

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

@@ -59,7 +59,7 @@ const permission = Layer.succeed(
   }),
 )
 const registry = ToolRegistry.defaultLayer.pipe(Layer.provide(permission))
-const agents = AgentV2.layer
+const agents = AgentV2.layer.pipe(Layer.provide(EventV2.defaultLayer))
 const model = OpenAIChat.route
   .with({
     endpoint: { baseURL: "https://api.openai.com/v1" },

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

@@ -129,7 +129,7 @@ const registry = ToolRegistry.layer.pipe(
   Layer.provide(applications),
   Layer.provide(ToolOutputStore.defaultLayer),
 )
-const agents = AgentV2.layer
+const agents = AgentV2.layer.pipe(Layer.provide(EventV2.defaultLayer))
 const echo = Layer.effectDiscard(
   ToolRegistry.Service.use((registry) =>
     registry.register({