diff --git a/server/src/__tests__/chat-channels.integration.test.ts b/server/src/__tests__/chat-channels.integration.test.ts
index fcaf642aa84..8b10fe2eec7 100644
--- a/server/src/__tests__/chat-channels.integration.test.ts
+++ b/server/src/__tests__/chat-channels.integration.test.ts
@@ -16341,9 +16341,15 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
           await tx.update(toolConnections).set({ credentialSecretRefs: connection.credentialSecretRefs.map(ref => ({ ...ref,
             versionSelector: ref.versionSelector === "1" ? "latest" : "1" })) }).where(eq(toolConnections.id, connection.id));
         });
-        await expect.poll(async () => ((await f.checkpoint()).value as Record<string, unknown>).credentialFingerprint,
-          { timeout: 5000 }).not.toBe(oldWindow.credentialFingerprint);
-        expect((await f.checkpoint()).value).toMatchObject({ generation: oldWindow.generation, outcome: "epoch_initialized" });
+        // Credential synchronization and epoch initialization commit separately.
+        // Require the final epoch receipt, not just the intermediate fingerprint.
+        await expect.poll(async () => {
+          const value = (await f.checkpoint()).value as Record<string, unknown>;
+          return { ...value, fingerprintChanged: typeof value.credentialFingerprint === "string"
+            && value.credentialFingerprint !== oldWindow.credentialFingerprint };
+        }, { timeout: 5000 }).toMatchObject({
+          fingerprintChanged: true, generation: oldWindow.generation, outcome: "epoch_initialized",
+        });
         expect(f.requests).toEqual([]);
       } finally { await coordinator.stop(); }
     });
diff --git a/server/src/__tests__/heartbeat-stale-queue-invalidation.test.ts b/server/src/__tests__/heartbeat-stale-queue-invalidation.test.ts
index 65191c24d2f..c4f0772ad47 100644
--- a/server/src/__tests__/heartbeat-stale-queue-invalidation.test.ts
+++ b/server/src/__tests__/heartbeat-stale-queue-invalidation.test.ts
@@ -262,6 +262,14 @@ describeEmbeddedPostgres("heartbeat stale queued-run invalidation", () => {
     await heartbeat.resumeQueuedRuns();
     const [delivered] = await db.select().from(agentWakeupRequests).where(eq(agentWakeupRequests.id, wake.id));
     expect(delivered.runId).toBeTruthy();
+    // The receipt can commit before execution enters liveRunExecutions.
+    // Observe actual adapter admission before awaiting its drain.
+    await vi.waitFor(async () => {
+      const current = await heartbeat.getRun(delivered.runId!);
+      expect(countExecuteCallsForRun(delivered.runId!), JSON.stringify({
+        status: current?.status, errorCode: current?.errorCode,
+      })).toBe(1);
+    }, { timeout: 5_000 });
     await heartbeat.waitForRunExecutionDrain(delivered.runId!);
     expect(countExecuteCallsForRun(delivered.runId!)).toBe(1);
     expect((await heartbeat.getRun(delivered.runId!))?.contextSnapshot).toMatchObject({ wakeCommentIds: [comment.id] });