diff --git a/src/hooks/session-recovery/thinking-prepend-latest.test.ts b/src/hooks/session-recovery/thinking-prepend-latest.test.ts
index 23bf11fc9..33b984973 100644
--- a/src/hooks/session-recovery/thinking-prepend-latest.test.ts
+++ b/src/hooks/session-recovery/thinking-prepend-latest.test.ts
@@ -1,24 +1,5 @@
 /// <reference types="bun-types" />
-import { existsSync, rmSync } from "node:fs"
-import { randomUUID } from "node:crypto"
-import { tmpdir } from "node:os"
-import { join } from "node:path"
-import { afterAll, describe, expect, it, mock } from "bun:test"
-
-const TEST_STORAGE_ROOT = join(tmpdir(), `session-recovery-latest-thinking-prepend-${randomUUID()}`)
-const TEST_PART_STORAGE = join(TEST_STORAGE_ROOT, "part")
-
-mock.module("../../shared", () => ({
-  OPENCODE_STORAGE: TEST_STORAGE_ROOT,
-  MESSAGE_STORAGE: join(TEST_STORAGE_ROOT, "message"),
-  PART_STORAGE: TEST_PART_STORAGE,
-  log: () => {},
-  isSqliteBackend: () => false,
-  patchPart: async () => true,
-  normalizeSDKResponse: <TData>(response: { data?: TData }, fallback: TData) => response.data ?? fallback,
-}))
-
-afterAll(() => { mock.restore() })
+import { describe, expect, it, mock } from "bun:test"
 
 const { prependThinkingPart, prependThinkingPartAsync } = await import("./storage/thinking-prepend")
 
@@ -31,10 +12,6 @@ type StoredPartRecord = {
   thinking?: string
 }
 
-function cleanupParts(messageID: string): void {
-  rmSync(join(TEST_PART_STORAGE, messageID), { recursive: true, force: true })
-}
-
 describe("thinking-prepend latest assistant preservation", () => {
   it("#given file-backed order recovery targets the latest assistant #when prepending thinking #then it refuses to write copied thinking", () => {
     const sessionID = "ses_latest_file_backed_prepend"
@@ -62,8 +39,6 @@ describe("thinking-prepend latest assistant preservation", () => {
     const result = prependThinkingPart(sessionID, targetMessageID, deps)
 
     expect(result).toBe(false)
-    expect(existsSync(join(TEST_PART_STORAGE, targetMessageID))).toBe(false)
-    cleanupParts(targetMessageID)
   })
 
   it("#given sdk order recovery targets the latest assistant #when prepending thinking #then it refuses to patch copied thinking", async () => {