diff --git a/doc/plans/2026-10-24-recurring-server-sleep-stack.md b/doc/plans/2026-10-24-recurring-server-sleep-stack.md
index 9a3deaee3e0..7c2756aebb8 100644
--- a/doc/plans/2026-10-24-recurring-server-sleep-stack.md
+++ b/doc/plans/2026-10-24-recurring-server-sleep-stack.md
@@ -2364,3 +2364,14 @@ unproven. Remote failures at `79bf36cbf8` include an early startup-settlement te
 assertion (repaired), a workspace staging timeout, and an E2E runner shutdown.
 See the response audit for logs. Fresh-head CI/review, earlier stack findings,
 master reconciliation, and all remaining original duties stay open. Nothing merged.
+
+
+## Slice 48 full-history acceptance repair
+
+Fresh review of `c4beddad1e` is 5/5 with its scope finding resolved. Remote CI
+exposed a second early startup assertion. Full local chat verification finished
+1,595 passed / seven failed; all seven were new worker tests observing a transient
+null deadline or unfinished startup batch. Their settlement predicate now includes
+zero active work. All 18 affected cases pass against the full suite's retained
+history. Fresh remote acceptance remains pending; these are recorded test repairs,
+not a waiver of failed gates or a change to production batch behavior.
diff --git a/doc/plans/2026-10-25-native-response-presentation-sleep-audit.md b/doc/plans/2026-10-25-native-response-presentation-sleep-audit.md
index 12ea5b1fb71..b07359fd0e2 100644
--- a/doc/plans/2026-10-25-native-response-presentation-sleep-audit.md
+++ b/doc/plans/2026-10-25-native-response-presentation-sleep-audit.md
@@ -376,3 +376,25 @@ hit a five-second sandbox staging test timeout; E2E shard five received a runner
 shutdown signal. These failures remain recorded in `/tmp/sleep48-ci-chat3.log`,
 `/tmp/sleep48-ci-workspaces-b.log`, and `/tmp/sleep48-ci-e2e5.log`. Fresh-head CI and
 review are required after the repair; no failing gate is waived.
+
+
+## Full-history test repair, 2026-10-26
+
+At `c4beddad1e`, fresh Greptile review is 5/5 and the scope thread is resolved.
+Remote CI passed 51 contexts but failed the chat shard and its aggregate gate:
+a second startup assertion assumed `worker.ready` drained every fair batch.
+The full local chat file finished with 1,595 passing and seven failing tests
+(`/tmp/sleep48-chat-full.log`); all seven were in the newly added worker tests.
+
+The larger run exposed two related observation errors: startup can have another
+batch scheduled, and `nextWakeAt() === null` can be transient while a batch runs.
+The latter caused query instrumentation to count unfinished startup checks and
+an outcome assertion to run before its response had been materialized. An early
+future-deadline test failure then left its fixture's real deadline for later tests.
+
+Worker startup/settlement assertions now require both zero active work and the
+expected next deadline. This changes test observation, not scheduler behavior or
+batch limits. All 18 affected cases pass against the retained history database
+from the full 1,602-case run (`/tmp/sleep48-settlement-history.log`), including
+single-query unrelated wakes, future deadlines, and coordinator retry release.
+The full-run failure remains recorded; fresh remote CI is still required.
diff --git a/server/src/__tests__/chat-channels.integration.test.ts b/server/src/__tests__/chat-channels.integration.test.ts
index 49d8efaca8c..1b3ae588acc 100644
--- a/server/src/__tests__/chat-channels.integration.test.ts
+++ b/server/src/__tests__/chat-channels.integration.test.ts
@@ -72641,7 +72641,8 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     const worker = work.register(coordinator, () => true);
     try {
       await worker.ready;
-      await expect.poll(() => coordinator.nextWakeAt(), { timeout: 5000 }).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       const comments = await db.select().from(issueComments).where(eq(issueComments.createdByRunId, context.runId));
       expect(comments).toHaveLength(1);
       expect(comments[0].body).toBe(context.result.summary);
@@ -72666,11 +72667,13 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     let replacement: ReturnType<typeof createService> | undefined;
     try {
       await worker.ready;
-      await expect.poll(() => coordinator.nextWakeAt(), { timeout: 5000 }).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       expect(await readChatPublicationsByEndpointId(context.endpoint.id)).toHaveLength(0);
       replacement = createService(new FakeChatSdkRuntime(), fakeTelegramFetch() as typeof fetch);
       await expect.poll(async () => (await readChatPublicationsByEndpointId(context.endpoint.id)).length, { timeout: 5000 }).toBe(1);
-      await expect.poll(() => coordinator.nextWakeAt(), { timeout: 5000 }).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       expect(errors).toEqual([]);
     } finally { worker.stop(); await coordinator.stop(); await replacement?.service.shutdown(); }
   });
@@ -72684,7 +72687,8 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     const worker = work.register(coordinator, () => true);
     try {
       await worker.ready;
-      await expect.poll(() => coordinator.nextWakeAt(), { timeout: 10_000 }).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       expect(await work.load({ companyId: context.fixture.companyId, runId: context.runId })).toHaveLength(1);
       const previousDebug = db.$client.options.debug;
       const queries: string[] = [];
@@ -72711,7 +72715,8 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     const worker = nativeResponsePresentationWork(db).register(coordinator, () => true);
     try {
       await worker.ready;
-      await expect.poll(() => coordinator.nextWakeAt(), { timeout: 5000 }).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       const transaction = db.transaction(async tx => {
         await tx.transaction(async nested => {
           await notifyChatRunMilestones(nested, { companyId: context.fixture.companyId, issueId: context.issue.id, runId: randomUUID() });
@@ -72742,7 +72747,8 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     const worker = nativeResponsePresentationWork(db).register(coordinator, () => canRun);
     try {
       await worker.ready;
-      await expect.poll(() => coordinator.nextWakeAt(), { timeout: 5000 }).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       canRun = false;
       await db.transaction(async tx => {
         await notifyChatRunMilestones(tx, { companyId: context.fixture.companyId, issueId: context.issue.id });
@@ -72818,7 +72824,8 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     const worker = nativeResponsePresentationWork(db).register(coordinator, () => true);
     try {
       await worker.ready;
-      expect(coordinator.nextWakeAt()).toBe(at.getTime());
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: at.getTime() });
       expect(await readChatPublicationsByEndpointId(context.endpoint.id)).toHaveLength(0);
       await vi.advanceTimersByTimeAsync(Math.max(0, at.getTime() - Date.now()));
       await vi.waitFor(async () => {
@@ -72869,14 +72876,16 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     });
     try {
       await worker.ready;
-      expect(coordinator.nextWakeAt()).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       expect(await work.load({ companyId: context.fixture.companyId, agentId: randomUUID() })).toEqual([]);
       expect(await readChatPublicationsByEndpointId(context.endpoint.id)).toHaveLength(0);
       await createAgentLifecycle(db).resumeAgent(context.binding.agentId);
       await processAgentLifecycle(db, context.binding.agentId);
       await expect.poll(async () => (await db.select().from(agents).where(eq(agents.id, context.binding.agentId)))[0].status).toBe("idle");
       await expect.poll(async () => (await readChatPublicationsByEndpointId(context.endpoint.id)).length, { timeout: 5000 }).toBe(1);
-      await expect.poll(() => coordinator.nextWakeAt(), { timeout: 5000 }).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       expect(errors).toEqual([]);
     } finally { await lifecycle.stop(); worker.stop(); await coordinator.stop(); await context.service.shutdown(); }
   });
@@ -72891,7 +72900,8 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     const worker = nativeResponsePresentationWork(db).register(coordinator, () => true);
     try {
       await worker.ready;
-      expect(coordinator.nextWakeAt()).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       await vi.advanceTimersByTimeAsync(2000);
       expect(await readChatPublicationsByEndpointId(context.endpoint.id)).toHaveLength(0);
       expect(coordinator.nextWakeAt()).toBeNull();
@@ -72914,7 +72924,8 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     const worker = nativeResponsePresentationWork(db).register(coordinator, () => true);
     try {
       await worker.ready;
-      await expect.poll(() => coordinator.nextWakeAt(), { timeout: 10_000 }).toBeNull();
+      await expect.poll(() => ({ active: idleWorkSnapshot().active, next: coordinator.nextWakeAt() }),
+        { timeout: 10_000 }).toEqual({ active: 0, next: null });
       expect(await readChatPublicationsByEndpointId(context.endpoint.id)).toHaveLength(0);
       const port = new PaperclipControlPlanePort(db, {
         companyId: context.binding.companyId, issueId: context.binding.issueId,