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 ec32eeba90f..7d0eb73524c 100644
--- a/doc/plans/2026-10-24-recurring-server-sleep-stack.md
+++ b/doc/plans/2026-10-24-recurring-server-sleep-stack.md
@@ -1632,3 +1632,12 @@ Three local cancellation diagnostic runs passed, including full projects coverag
 and a database-only delay, without proving the CI deadlock's competing owner.
 Those failures, parent security/deletion findings, all other original slices,
 fresh remote review and reconciliation with master 7ebf98eafd remain open.
+
+
+Slice 28 ordinary ingress now wakes existing milestone debt before reactivating
+conversation bindings and writing inbound links. A real Slack ingress regression
+failed before repair and passes without depending on a new run being created.
+All 12 selected ingress/revocation/Telegram migration cases and server types/build
+pass. The milestone audit records evidence, isolated DB, and remaining authority/
+lineage producers. This is another producer checkpoint in draft #17606, not
+production polling removal or completion of the full requested stack.
diff --git a/doc/plans/2026-10-25-chat-run-milestone-sleep-audit.md b/doc/plans/2026-10-25-chat-run-milestone-sleep-audit.md
index b431518c2f7..0b4b36f8229 100644
--- a/doc/plans/2026-10-25-chat-run-milestone-sleep-audit.md
+++ b/doc/plans/2026-10-25-chat-run-milestone-sleep-audit.md
@@ -1187,3 +1187,36 @@ E2E failures; no blind retry or cancellation-error masking was applied.
 Normal inbound conversation/link activation and remaining authority/lineage
 producer dispositions still gate production registration and polling removal.
 Fresh master is 7ebf98eafd; final base reconciliation remains outstanding.
+
+
+## Ordinary inbound conversation activation
+
+The actual Slack ingress owner reproduces another missing wake: a prior failed
+run has valid inbound lineage, but its unavailable conversation is restored by a
+new message after the projector exhausted its startup work. The harness accepts
+the new wake without creating a new run, so this does not rely on later queue
+admission to hide the gap. Before repair the expected failed-run publication
+never appears (/tmp/sleep28-inbound-before.log).
+
+persistTaskMutation now registers the existing issue scope before its mutations,
+or the newly created issue scope before inserting its conversation. The same
+transaction creates the inbound link and reactivates the binding. Existing
+endpoint/resource/principal authorization runs before this owner; provider calls
+remain outside it. This is a direct use of the shared transaction intent helper,
+not a new wrapper or background scan. No business policy or public API changes.
+
+The regression passes (/tmp/sleep28-inbound-tests.log), and the combined selection
+passes 12 cases: ordinary ingress reactivation, three existing Slack/Teams/Telegram
+reach-revocation cases, and eight Telegram migration cases
+(/tmp/sleep28-inbound-acceptance.log; 1,419 deselected). Server production
+typecheck/build pass in /tmp/sleep28-inbound-{typecheck,build}.log. The isolated
+DB is paperclip_sleep28_inbound_20261025_test. Existing resource and lifecycle
+proofs remain recorded at their prior checkpoints; the whole integration file
+was not run locally for this edit.
+
+Remaining audit: alternate monitor/wakeup receipt rewrites, board reply identity,
+provider-specific configuration/authority, and any remaining direct lineage
+writers. Endpoint update does not assign a new agent or change publication mode;
+its unrelated health/configuration writes must not cause blanket milestone scans.
+Production registration/poll removal, complete remote gates, prior parent findings,
+and the full original stack remain unfinished.
diff --git a/server/src/__tests__/chat-channels.integration.test.ts b/server/src/__tests__/chat-channels.integration.test.ts
index 00af2005997..ab36da8d749 100644
--- a/server/src/__tests__/chat-channels.integration.test.ts
+++ b/server/src/__tests__/chat-channels.integration.test.ts
@@ -16,6 +16,7 @@ import { chatSlackManagerGrants, chatSlackRegistrations, toolOauthStates } from
 import type { PaperclipCloudConnector, SealedConnectorCredentials } from "../services/paperclip-cloud-connector.js";
 import { buildSlackAppManifest, SLACK_MANAGER_SCOPES } from "@paperclipai/shared";
 import { registerChatActionWork, dueChatAction } from "../services/chat-action-work.js";
+import { chatRunMilestoneWork } from "../services/chat-run-milestone-work.js";
 import { createDeliveryWorkCoordinator } from "../services/delivery-work-coordinator.js";
 import { registerChatDeliveryWork } from "../services/chat-delivery-work.js";
 import { notifyChatPublicationWork, notifyChatActionWork, CHAT_ACTION_QUEUES } from "../services/chat-work-notifications.js";
@@ -34442,6 +34443,43 @@ describeEmbeddedPostgres("chat channel control-plane integration", () => {
     ]);
   });
 
+  it("wakes an existing chat milestone when ordinary ingress reactivates its conversation", async () => {
+    const fixture = await seedCompany();
+    const { callbacks, endpoint, wakeup } = await configuredSlackEndpoint(fixture);
+    const thread = makeThread({ channelId: "C-REOPEN-MILESTONE", id: "slack:C-REOPEN-MILESTONE:4100.1", name: "reopen-milestone" });
+    const send = (id: string) => deliverMessage({ callbacks, endpointId: endpoint.id, thread: thread.thread,
+      message: makeMessage({ id, text: "@maya continue this conversation", mentioned: true }), trigger: "mention" });
+    await send("4100.1");
+    const [conversation] = await readChatConversationsByEndpointId(endpoint.id);
+    const [link] = await db.select().from(chatMessageLinks).where(and(
+      eq(chatMessageLinks.conversationId, conversation.id), eq(chatMessageLinks.providerMessageId, "4100.1")));
+    const runId = randomUUID();
+    await db.insert(heartbeatRuns).values({ id: runId, companyId: fixture.companyId, agentId: fixture.assignedAgentId,
+      status: "failed", errorCode: "low_trust_isolation_unavailable", updatedAt: new Date(),
+      contextSnapshot: { issueId: conversation.issueId, source: "chat:slack", endpointId: endpoint.id, wakeCommentId: link.commentId },
+    });
+    await db.update(chatConversations).set({ state: "unavailable" }).where(eq(chatConversations.id, conversation.id));
+    const onError = vi.fn();
+    const coordinator = createDeliveryWorkCoordinator({ owner: db, canRun: () => true, onError });
+    const notice = () => db.select().from(chatPublications).where(and(eq(chatPublications.issueId, conversation.issueId),
+      eq(chatPublications.idempotencyKey, `run:${runId}:failed:${endpoint.id}`)));
+    try {
+      await chatRunMilestoneWork(db).register(coordinator, () => true).ready;
+      await vi.waitFor(() => expect(coordinator.nextWakeAt()).toBeNull());
+      expect(await notice()).toEqual([]);
+      const wakesBefore = wakeup.mock.calls.length;
+      await send("4100.2");
+      expect(wakeup.mock.calls.length).toBe(wakesBefore + 1);
+      // The harness accepts the new wake without creating a run. Existing
+      // projection debt must wake from ingress, not a later run transition.
+      await expect.poll(notice, { timeout: 5000 }).toEqual([
+        expect.objectContaining({ idempotencyKey: `run:${runId}:failed:${endpoint.id}` }),
+      ]);
+      await vi.waitFor(() => expect(coordinator.nextWakeAt()).toBeNull());
+      expect(onError).not.toHaveBeenCalled();
+    } finally { await coordinator.stop(); }
+  });
+
   it.each(["milliseconds", "microseconds"])("drains bounded Slack chat-origin milestones without admitting an internal issue run (%s)", async (precision) => {
     const fixture = await seedCompany();
     const { callbacks, endpoint } = await configuredSlackEndpoint(fixture);
diff --git a/server/src/services/chat-channels.ts b/server/src/services/chat-channels.ts
index 335dff4f6ab..58fb4bd8e49 100644
--- a/server/src/services/chat-channels.ts
+++ b/server/src/services/chat-channels.ts
@@ -1,6 +1,7 @@
 import { leasedChatProvider } from "./chat-channels/runtime/receiver-policy.js";
 import { chatReceiverSchedule } from "./chat-channels/runtime/receiver-schedule.js";
 import { registerChatReceiverWork } from "./chat-channels/runtime/receiver-work.js";
+import { notifyChatRunMilestones } from "./chat-run-milestone-notifications.js";
 import { notifyChatEndpointConfiguration } from "./chat-channels/configuration-work-notifications.js";
 import { registerDiscordCommandWork } from "./chat-channels/discord/command-work.js";
 import { discordCommandSchedule } from "./chat-channels/discord/command-schedule.js";
@@ -2125,6 +2126,9 @@ export function chatChannelService(db: Db, options: ChatChannelServiceOptions) {
         taskUserId: string | null,
       ) => {
         let conversation = existingConversation;
+        if (conversation) {
+          await notifyChatRunMilestones(taskTx, { companyId: taskEndpoint.companyId, issueId: conversation.issueId });
+        }
         if (!conversation) {
           const [taskResource] = await taskTx.select({ executionDefaults: chatEndpointResources.executionDefaults })
             .from(chatEndpointResources).where(and(eq(chatEndpointResources.id, resource.id), eq(chatEndpointResources.endpointId, taskEndpoint.id)));
@@ -2166,6 +2170,7 @@ export function chatChannelService(db: Db, options: ChatChannelServiceOptions) {
             },
             taskTx,
           );
+          await notifyChatRunMilestones(taskTx, { companyId: taskEndpoint.companyId, issueId: issue.id });
           await taskTx
             .insert(chatConversations)
             .values({