diff --git a/extensions/codex/media-understanding-provider.test.ts b/extensions/codex/media-understanding-provider.test.ts
index c199c9078a4..58914b6a939 100644
--- a/extensions/codex/media-understanding-provider.test.ts
+++ b/extensions/codex/media-understanding-provider.test.ts
@@ -253,6 +253,8 @@ describe("codex media understanding provider", () => {
       expect(result?.text).toBe("A red square.");
       expect(setTimeoutSpy).toHaveBeenCalledWith(expect.any(Function), MAX_TIMER_TIMEOUT_MS);
     } finally {
+      vi.restoreAllMocks();
+      vi.clearAllTimers();
       vi.useRealTimers();
     }
   });
diff --git a/extensions/codex/src/app-server/attempt-turn-watches.test.ts b/extensions/codex/src/app-server/attempt-turn-watches.test.ts
index 66905fcf127..d7617b02431 100644
--- a/extensions/codex/src/app-server/attempt-turn-watches.test.ts
+++ b/extensions/codex/src/app-server/attempt-turn-watches.test.ts
@@ -10,6 +10,7 @@ describe("Codex app-server attempt turn watches", () => {
 
   afterEach(() => {
     vi.restoreAllMocks();
+    vi.clearAllTimers();
     vi.useRealTimers();
   });
 
diff --git a/extensions/codex/src/conversation-turn-collector.test.ts b/extensions/codex/src/conversation-turn-collector.test.ts
index 302e7551638..73820dd91fb 100644
--- a/extensions/codex/src/conversation-turn-collector.test.ts
+++ b/extensions/codex/src/conversation-turn-collector.test.ts
@@ -208,6 +208,7 @@ describe("codex conversation turn collector", () => {
       await expect(completion).resolves.toEqual({ replyText: "" });
     } finally {
       vi.restoreAllMocks();
+      vi.clearAllTimers();
       vi.useRealTimers();
     }
   });