diff --git a/packages/opencode/test/effect/instance-state.test.ts b/packages/opencode/test/effect/instance-state.test.ts
index 23cd51d7f3..b47b740cd4 100644
--- a/packages/opencode/test/effect/instance-state.test.ts
+++ b/packages/opencode/test/effect/instance-state.test.ts
@@ -1,15 +1,21 @@
-import { afterEach, expect } from "bun:test"
+import { expect } from "bun:test"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { $ } from "bun"
 import { Context, Deferred, Duration, Effect, Exit, Fiber, Layer } from "effect"
 import { InstanceState } from "@/effect/instance-state"
-import { disposeAllInstances, provideInstance, reloadTestInstance, tmpdirScoped } from "../fixture/fixture"
+import {
+  disposeAllInstancesEffect,
+  provideInstanceEffect,
+  reloadInstance,
+  testInstanceStoreLayer,
+  tmpdirScoped,
+} from "../fixture/fixture"
 import { testEffect } from "../lib/effect"
 
-const it = testEffect(CrossSpawnSpawner.defaultLayer)
+const it = testEffect(Layer.mergeAll(CrossSpawnSpawner.defaultLayer, testInstanceStoreLayer))
 
 const access = <A, E>(state: InstanceState.InstanceState<A, E>, dir: string) =>
-  InstanceState.get(state).pipe(provideInstance(dir))
+  InstanceState.get(state).pipe(provideInstanceEffect(dir))
 
 const tmpdirGitScoped = Effect.gen(function* () {
   const dir = yield* tmpdirScoped({ git: true })
@@ -17,10 +23,6 @@ const tmpdirGitScoped = Effect.gen(function* () {
   return dir
 })
 
-afterEach(async () => {
-  await disposeAllInstances()
-})
-
 it.live("InstanceState caches values per directory", () =>
   Effect.gen(function* () {
     const dir = yield* tmpdirScoped()
@@ -68,7 +70,7 @@ it.live("InstanceState invalidates on reload", () =>
     )
 
     const a = yield* access(state, dir)
-    yield* Effect.promise(() => reloadTestInstance({ directory: dir }))
+    yield* reloadInstance({ directory: dir })
     const b = yield* access(state, dir)
 
     expect(a).not.toBe(b)
@@ -93,7 +95,7 @@ it.live("InstanceState invalidates on disposeAll", () =>
 
     yield* access(state, one)
     yield* access(state, two)
-    yield* Effect.promise(disposeAllInstances)
+    yield* disposeAllInstancesEffect
 
     expect(seen.sort()).toEqual([one, two].sort())
   }),
@@ -125,8 +127,8 @@ it.live("InstanceState.get reads the current directory lazily", () =>
     }
 
     yield* Effect.gen(function* () {
-      const a = yield* Test.use((svc) => svc.get()).pipe(provideInstance(one))
-      const b = yield* Test.use((svc) => svc.get()).pipe(provideInstance(two))
+      const a = yield* Test.use((svc) => svc.get()).pipe(provideInstanceEffect(one))
+      const b = yield* Test.use((svc) => svc.get()).pipe(provideInstanceEffect(two))
 
       expect(a).toBe(one)
       expect(b).toBe(two)
@@ -177,7 +179,7 @@ it.live("InstanceState preserves directory across async boundaries", () =>
 
     yield* Effect.gen(function* () {
       const [a, b, c] = yield* Effect.all(
-        [one, two, three].map((dir) => Test.use((svc) => svc.get()).pipe(provideInstance(dir))),
+        [one, two, three].map((dir) => Test.use((svc) => svc.get()).pipe(provideInstanceEffect(dir))),
         { concurrency: "unbounded" },
       )
 
@@ -224,7 +226,7 @@ it.live("InstanceState survives high-contention concurrent access", () =>
 
     yield* Effect.gen(function* () {
       const results = yield* Effect.all(
-        dirs.map((dir) => Test.use((svc) => svc.get()).pipe(provideInstance(dir))),
+        dirs.map((dir) => Test.use((svc) => svc.get()).pipe(provideInstanceEffect(dir))),
         { concurrency: "unbounded" },
       )
 
@@ -263,19 +265,19 @@ it.live("InstanceState correct after interleaved init and dispose", () =>
     }
 
     yield* Effect.gen(function* () {
-      const a = yield* Test.use((svc) => svc.get()).pipe(provideInstance(one))
+      const a = yield* Test.use((svc) => svc.get()).pipe(provideInstanceEffect(one))
       expect(a).toBe(one)
 
       const [, b] = yield* Effect.all(
         [
-          Effect.promise(() => reloadTestInstance({ directory: one })),
-          Test.use((svc) => svc.get()).pipe(provideInstance(two)),
+          reloadInstance({ directory: one }),
+          Test.use((svc) => svc.get()).pipe(provideInstanceEffect(two)),
         ],
         { concurrency: "unbounded" },
       )
       expect(b).toBe(two)
 
-      const c = yield* Test.use((svc) => svc.get()).pipe(provideInstance(one))
+      const c = yield* Test.use((svc) => svc.get()).pipe(provideInstanceEffect(one))
       expect(c).toBe(one)
     }).pipe(Effect.provide(Test.layer))
   }),
@@ -343,9 +345,9 @@ it.live("InstanceState survives deferred resume from the same instance context",
 
     yield* Effect.gen(function* () {
       const gate = yield* Deferred.make<void>()
-      const fiber = yield* Test.use((svc) => svc.get(gate)).pipe(provideInstance(dir), Effect.forkScoped)
+      const fiber = yield* Test.use((svc) => svc.get(gate)).pipe(provideInstanceEffect(dir), Effect.forkScoped)
 
-      yield* Deferred.succeed(gate, undefined).pipe(provideInstance(dir))
+      yield* Deferred.succeed(gate, undefined).pipe(provideInstanceEffect(dir))
       const exit = yield* Fiber.await(fiber)
 
       expect(Exit.isSuccess(exit)).toBe(true)
@@ -380,7 +382,7 @@ it.live("InstanceState survives deferred resume outside ALS when InstanceRef is
 
     yield* Effect.gen(function* () {
       const gate = yield* Deferred.make<void>()
-      const fiber = yield* Test.use((svc) => svc.get(gate)).pipe(provideInstance(dir), Effect.forkScoped)
+      const fiber = yield* Test.use((svc) => svc.get(gate)).pipe(provideInstanceEffect(dir), Effect.forkScoped)
 
       yield* Deferred.succeed(gate, undefined)
       const exit = yield* Fiber.await(fiber)
diff --git a/packages/opencode/test/fixture/fixture.ts b/packages/opencode/test/fixture/fixture.ts
index 51b6294975..9653e5888d 100644
--- a/packages/opencode/test/fixture/fixture.ts
+++ b/packages/opencode/test/fixture/fixture.ts
@@ -17,8 +17,9 @@ import { InstanceStore } from "../../src/project/instance-store"
 import { TestLLMServer } from "../lib/llm-server"
 
 const noopBootstrap = Layer.succeed(InstanceBootstrap.Service, InstanceBootstrap.Service.of({ run: Effect.void }))
+export const testInstanceStoreLayer = InstanceStore.defaultLayer.pipe(Layer.provide(noopBootstrap))
 const testInstanceRuntime = ManagedRuntime.make(
-  InstanceStore.defaultLayer.pipe(Layer.provide(noopBootstrap), Layer.provideMerge(Observability.layer)),
+  testInstanceStoreLayer.pipe(Layer.provideMerge(Observability.layer)),
 )
 
 const runTestInstanceStore = <A>(fn: (store: InstanceStore.Interface) => Effect.Effect<A>) =>
@@ -165,6 +166,16 @@ export const provideInstance =
       }),
     )
 
+export const provideInstanceEffect =
+  (directory: string) =>
+  <A, E, R>(self: Effect.Effect<A, E, R>): Effect.Effect<A, E, R | InstanceStore.Service> =>
+    InstanceStore.Service.use((store) => store.provide({ directory }, self))
+
+export const reloadInstance = (input: InstanceStore.LoadInput) =>
+  InstanceStore.Service.use((store) => store.reload(input))
+
+export const disposeAllInstancesEffect = InstanceStore.Service.use((store) => store.disposeAll())
+
 export function provideTmpdirInstance<A, E, R>(
   self: (path: string) => Effect.Effect<A, E, R>,
   options?: { git?: boolean; config?: Partial<Config.Info> },
@@ -195,11 +206,9 @@ export const withTmpdirInstance =
   <A, E, R>(self: Effect.Effect<A, E, R>) =>
     Effect.gen(function* () {
       const directory = yield* tmpdirScoped(options)
-      return yield* InstanceStore.Service.use((store) =>
-        store.provide({ directory }, self.pipe(Effect.provideService(TestInstance, { directory }))),
-      )
+      return yield* self.pipe(Effect.provideService(TestInstance, { directory }), provideInstanceEffect(directory))
     }).pipe(
-      Effect.provide(InstanceStore.defaultLayer.pipe(Layer.provide(noopBootstrap))),
+      Effect.provide(testInstanceStoreLayer),
       Effect.provide(CrossSpawnSpawner.defaultLayer),
     )