test(core): simplify agent config layer wiring

packages/core/src/agent.ts

@@ -7,6 +7,7 @@ import { PermissionSchema } from "./permission/schema"
 import { ProviderV2 } from "./provider"
 import { PositiveInt } from "./schema"
 import { State } from "./state"
+import { LayerNode } from "./effect/layer-node"
 
 export const ID = Schema.String.pipe(Schema.brand("AgentV2.ID"))
 export type ID = typeof ID.Type
@@ -140,3 +141,4 @@ export const layer = Layer.effect(
 )
 
 export const locationLayer = layer
+export const node = LayerNode.make(layer, [])

packages/core/src/location-mutation.ts

@@ -2,7 +2,6 @@ export * as LocationMutation from "./location-mutation"
 
 import path from "path"
 import { Context, Effect, Layer, Schema } from "effect"
-import { LayerNode } from "./effect/layer-node"
 import { FSUtil } from "./fs-util"
 import { Location } from "./location"
 
@@ -154,5 +153,3 @@ export const layer = Layer.effect(
 )
 
 export const locationLayer = layer
-
-export const node = (location: LayerNode.Node<Location.Service>) => LayerNode.make(layer, [FSUtil.node, location])

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

@@ -1,17 +1,18 @@
 import { describe, expect } from "bun:test"
 import fs from "fs/promises"
 import path from "path"
-import { Effect, Layer, Schema } from "effect"
+import { Effect, 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 { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { FSUtil } from "@opencode-ai/core/fs-util"
 import { PermissionV2 } from "@opencode-ai/core/permission"
 import { AbsolutePath } from "@opencode-ai/core/schema"
 import { tmpdir } from "../fixture/tmpdir"
 import { testEffect } from "../lib/effect"
 
-const it = testEffect(Layer.mergeAll(AgentV2.locationLayer, FSUtil.defaultLayer))
+const it = testEffect(LayerNode.buildLayer(LayerNode.group([AgentV2.node, FSUtil.node])))
 const decode = Schema.decodeUnknownSync(Config.Info)
 
 describe("ConfigAgentPlugin.Plugin", () => {

packages/core/test/location-mutation.test.ts

@@ -2,7 +2,7 @@ import fs from "fs/promises"
 import path from "path"
 import { describe, expect, test } from "bun:test"
 import { Effect, Layer, Schema } from "effect"
-import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { FSUtil } from "@opencode-ai/core/fs-util"
 import { Location } from "@opencode-ai/core/location"
 import { LocationMutation } from "@opencode-ai/core/location-mutation"
 import { AbsolutePath } from "@opencode-ai/core/schema"
@@ -11,11 +11,16 @@ import { location } from "./fixture/location"
 import { it } from "./lib/effect"
 
 function provide(directory: string) {
-  const activeLocation = LayerNode.make(
-    Layer.succeed(Location.Service, Location.Service.of(location({ directory: AbsolutePath.make(directory) }))),
-    [],
+  return Effect.provide(
+    LocationMutation.layer.pipe(
+      Layer.provide(
+        Layer.mergeAll(
+          FSUtil.defaultLayer,
+          Layer.succeed(Location.Service, Location.Service.of(location({ directory: AbsolutePath.make(directory) }))),
+        ),
+      ),
+    ),
   )
-  return Effect.provide(LayerNode.buildLayer(LocationMutation.node(activeLocation)))
 }
 
 function withTmp<A, E, R>(f: (directory: string) => Effect.Effect<A, E, R>) {