diff --git a/packages/opencode/test/project/migrate-global.test.ts b/packages/opencode/test/project/migrate-global.test.ts
index c476c108b4..6efd670c5c 100644
--- a/packages/opencode/test/project/migrate-global.test.ts
+++ b/packages/opencode/test/project/migrate-global.test.ts
@@ -1,4 +1,4 @@
-import { describe, expect, test } from "bun:test"
+import { describe, expect } from "bun:test"
 import { Project } from "@/project/project"
 import { Database } from "@/storage/db"
 import { eq } from "drizzle-orm"
@@ -8,19 +8,14 @@ import { ProjectID } from "../../src/project/schema"
 import { SessionID } from "../../src/session/schema"
 import * as Log from "@opencode-ai/core/util/log"
 import { $ } from "bun"
-import { tmpdir } from "../fixture/fixture"
-import { Effect } from "effect"
+import { tmpdirScoped } from "../fixture/fixture"
+import { Effect, Layer } from "effect"
+import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
+import { testEffect } from "../lib/effect"
 
-Log.init({ print: false })
+void Log.init({ print: false })
 
-function run<A>(fn: (svc: Project.Interface) => Effect.Effect<A>) {
-  return Effect.runPromise(
-    Effect.gen(function* () {
-      const svc = yield* Project.Service
-      return yield* fn(svc)
-    }).pipe(Effect.provide(Project.defaultLayer)),
-  )
-}
+const it = testEffect(Layer.mergeAll(Project.defaultLayer, CrossSpawnSpawner.defaultLayer))
 
 function legacySessionID() {
   // Global-session migration covers persisted IDs from before prefixed session IDs.
@@ -63,91 +58,102 @@ function ensureGlobal() {
 }
 
 describe("migrateFromGlobal", () => {
-  test("migrates global sessions on first project creation", async () => {
-    // 1. Start with git init but no commits — creates "global" project row
-    await using tmp = await tmpdir()
-    await $`git init`.cwd(tmp.path).quiet()
-    await $`git config user.name "Test"`.cwd(tmp.path).quiet()
-    await $`git config user.email "test@opencode.test"`.cwd(tmp.path).quiet()
-    await $`git config commit.gpgsign false`.cwd(tmp.path).quiet()
-    const { project: pre } = await run((svc) => svc.fromDirectory(tmp.path))
-    expect(pre.id).toBe(ProjectID.global)
+  it.live("migrates global sessions on first project creation", () =>
+    Effect.gen(function* () {
+      // 1. Start with git init but no commits — creates "global" project row
+      const tmp = yield* tmpdirScoped()
+      yield* Effect.promise(() => $`git init`.cwd(tmp).quiet())
+      yield* Effect.promise(() => $`git config user.name "Test"`.cwd(tmp).quiet())
+      yield* Effect.promise(() => $`git config user.email "test@opencode.test"`.cwd(tmp).quiet())
+      yield* Effect.promise(() => $`git config commit.gpgsign false`.cwd(tmp).quiet())
+      const projects = yield* Project.Service
+      const { project: pre } = yield* projects.fromDirectory(tmp)
+      expect(pre.id).toBe(ProjectID.global)
 
-    // 2. Seed a session under "global" with matching directory
-    const id = legacySessionID()
-    seed({ id, dir: tmp.path, project: ProjectID.global })
+      // 2. Seed a session under "global" with matching directory
+      const id = legacySessionID()
+      yield* Effect.sync(() => seed({ id, dir: tmp, project: ProjectID.global }))
 
-    // 3. Make a commit so the project gets a real ID
-    await $`git commit --allow-empty -m "root"`.cwd(tmp.path).quiet()
+      // 3. Make a commit so the project gets a real ID
+      yield* Effect.promise(() => $`git commit --allow-empty -m "root"`.cwd(tmp).quiet())
 
-    const { project: real } = await run((svc) => svc.fromDirectory(tmp.path))
-    expect(real.id).not.toBe(ProjectID.global)
+      const { project: real } = yield* projects.fromDirectory(tmp)
+      expect(real.id).not.toBe(ProjectID.global)
 
-    // 4. The session should have been migrated to the real project ID
-    const row = Database.use((db) => db.select().from(SessionTable).where(eq(SessionTable.id, id)).get())
-    expect(row).toBeDefined()
-    expect(row!.project_id).toBe(real.id)
-  })
+      // 4. The session should have been migrated to the real project ID
+      const row = Database.use((db) => db.select().from(SessionTable).where(eq(SessionTable.id, id)).get())
+      expect(row).toBeDefined()
+      expect(row!.project_id).toBe(real.id)
+    }),
+  )
 
-  test("migrates global sessions even when project row already exists", async () => {
-    // 1. Create a repo with a commit — real project ID created immediately
-    await using tmp = await tmpdir({ git: true })
-    const { project } = await run((svc) => svc.fromDirectory(tmp.path))
-    expect(project.id).not.toBe(ProjectID.global)
+  it.live("migrates global sessions even when project row already exists", () =>
+    Effect.gen(function* () {
+      // 1. Create a repo with a commit — real project ID created immediately
+      const tmp = yield* tmpdirScoped({ git: true })
+      const projects = yield* Project.Service
+      const { project } = yield* projects.fromDirectory(tmp)
+      expect(project.id).not.toBe(ProjectID.global)
 
-    // 2. Ensure "global" project row exists (as it would from a prior no-git session)
-    ensureGlobal()
+      // 2. Ensure "global" project row exists (as it would from a prior no-git session)
+      yield* Effect.sync(() => ensureGlobal())
 
-    // 3. Seed a session under "global" with matching directory.
-    //    This simulates a session created before git init that wasn't
-    //    present when the real project row was first created.
-    const id = legacySessionID()
-    seed({ id, dir: tmp.path, project: ProjectID.global })
+      // 3. Seed a session under "global" with matching directory.
+      //    This simulates a session created before git init that wasn't
+      //    present when the real project row was first created.
+      const id = legacySessionID()
+      yield* Effect.sync(() => seed({ id, dir: tmp, project: ProjectID.global }))
 
-    // 4. Call fromDirectory again — project row already exists,
-    //    so the current code skips migration entirely. This is the bug.
-    await run((svc) => svc.fromDirectory(tmp.path))
+      // 4. Call fromDirectory again — project row already exists,
+      //    so the current code skips migration entirely. This is the bug.
+      yield* projects.fromDirectory(tmp)
 
-    const row = Database.use((db) => db.select().from(SessionTable).where(eq(SessionTable.id, id)).get())
-    expect(row).toBeDefined()
-    expect(row!.project_id).toBe(project.id)
-  })
+      const row = Database.use((db) => db.select().from(SessionTable).where(eq(SessionTable.id, id)).get())
+      expect(row).toBeDefined()
+      expect(row!.project_id).toBe(project.id)
+    }),
+  )
 
-  test("does not claim sessions with empty directory", async () => {
-    await using tmp = await tmpdir({ git: true })
-    const { project } = await run((svc) => svc.fromDirectory(tmp.path))
-    expect(project.id).not.toBe(ProjectID.global)
+  it.live("does not claim sessions with empty directory", () =>
+    Effect.gen(function* () {
+      const tmp = yield* tmpdirScoped({ git: true })
+      const projects = yield* Project.Service
+      const { project } = yield* projects.fromDirectory(tmp)
+      expect(project.id).not.toBe(ProjectID.global)
 
-    ensureGlobal()
+      yield* Effect.sync(() => ensureGlobal())
 
-    // Legacy sessions may lack a directory value.
-    // Without a matching origin directory, they should remain global.
-    const id = legacySessionID()
-    seed({ id, dir: "", project: ProjectID.global })
+      // Legacy sessions may lack a directory value.
+      // Without a matching origin directory, they should remain global.
+      const id = legacySessionID()
+      yield* Effect.sync(() => seed({ id, dir: "", project: ProjectID.global }))
 
-    await run((svc) => svc.fromDirectory(tmp.path))
+      yield* projects.fromDirectory(tmp)
 
-    const row = Database.use((db) => db.select().from(SessionTable).where(eq(SessionTable.id, id)).get())
-    expect(row).toBeDefined()
-    expect(row!.project_id).toBe(ProjectID.global)
-  })
+      const row = Database.use((db) => db.select().from(SessionTable).where(eq(SessionTable.id, id)).get())
+      expect(row).toBeDefined()
+      expect(row!.project_id).toBe(ProjectID.global)
+    }),
+  )
 
-  test("does not steal sessions from unrelated directories", async () => {
-    await using tmp = await tmpdir({ git: true })
-    const { project } = await run((svc) => svc.fromDirectory(tmp.path))
-    expect(project.id).not.toBe(ProjectID.global)
+  it.live("does not steal sessions from unrelated directories", () =>
+    Effect.gen(function* () {
+      const tmp = yield* tmpdirScoped({ git: true })
+      const projects = yield* Project.Service
+      const { project } = yield* projects.fromDirectory(tmp)
+      expect(project.id).not.toBe(ProjectID.global)
 
-    ensureGlobal()
+      yield* Effect.sync(() => ensureGlobal())
 
-    // Seed a session under "global" but for a DIFFERENT directory
-    const id = legacySessionID()
-    seed({ id, dir: "/some/other/dir", project: ProjectID.global })
+      // Seed a session under "global" but for a DIFFERENT directory
+      const id = legacySessionID()
+      yield* Effect.sync(() => seed({ id, dir: "/some/other/dir", project: ProjectID.global }))
 
-    await run((svc) => svc.fromDirectory(tmp.path))
-
-    const row = Database.use((db) => db.select().from(SessionTable).where(eq(SessionTable.id, id)).get())
-    expect(row).toBeDefined()
-    // Should remain under "global" — not stolen
-    expect(row!.project_id).toBe(ProjectID.global)
-  })
+      yield* projects.fromDirectory(tmp)
+      const row = Database.use((db) => db.select().from(SessionTable).where(eq(SessionTable.id, id)).get())
+      expect(row).toBeDefined()
+      // Should remain under "global" — not stolen
+      expect(row!.project_id).toBe(ProjectID.global)
+    }),
+  )
 })