From c49ab6b9ee15db80bd74c01e4fe34a8f496fc1b8 Mon Sep 17 00:00:00 2001
From: Dotta <34892728+cryppadotta@users.noreply.github.com>
Date: Sun, 8 Nov 2026 18:26:07 -0600
Subject: [PATCH] feat(issues): wake the parent once when a child or blocker
 stalls on the board (#20098)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - A parent task delegates to children and waits on blockers. Its agent
learns of progress only through wakes
> - Today only completion (`issue_children_completed`) and resolution
(`issue_blockers_resolved`) wake a waiting issue
> - In restart chaos `w-20261108T181313-s9701` t05, a blocker stopped on
a recovery action that needs the board, and its parent sat silently
blocked for 50+ minutes
> - This pull request wakes the waiting agent once per such stall, tells
it what it can do, and shows the stall on the parent's page with the
child's Retry
> - The benefit is that a stuck child or blocker no longer silently
strands its parent

## Linked Issues or Issue Description

Refs #19831 (durable ownership plan; restart chaos campaign). Restart
chaos wave `w-20261108T181313-s9701`, task t05 (M1, claude).

**Problem**

From the kept database:
- CHA-8 `blocks` CHA-5.
- CHA-8's board-owned recovery action (`native_session_retry_exhausted`)
was created at 18:44:02.909 and resolved with outcome `blocked` at
18:44:08, when CHA-8 moved to `blocked` for the board.
- CHA-5's only wake in the whole wave was its `issue_assigned` at
18:20:48. Its agent never heard about CHA-8.

**Expected behavior**
- When a child or blocker stalls on the board, the waiting agent is
woken once. It can then re-delegate, escalate, or block with a reason.
- The board sees the stall on the waiting task, with the child's Retry.

## What Changed

- **Shared:**
- `ISSUE_BLOCKER_STALLED_WAKE_REASON` (`issue_blocker_stalled`),
`ISSUE_BLOCKER_STALL_RELATIONS`, and the types
`IssueBlockerStallRelation` and `IssueBlockerStalledWakeContext`;
  - `Issue.stalledDependencies`.
- **Server, `services/recovery/blocker-stall-wakeups.ts`:**
- A stall is an issue that is not done or cancelled, whose latest
recovery action needs the board. That means either open
(`active`/`escalated`) and board-owned or escalated, or board-owned and
resolved as `blocked` while the issue is still `blocked`. The second
case is what t05 needed: recovery resolves its action that way when it
hands the issue to the board.
- Waiters are the parent, and every issue the stalled one `blocks`, when
they are open, visible and agent-assigned.
- Each waiter gets one wake per stall. The idempotency key
`issue_blocker_stalled:{waiter}:{stalled}:{recoveryActionId}` is checked
through the indexed `(company_id, payload->>'issueId')` path. A later
stall has a new action id, so it wakes again.
  - Each wake writes activity `issue.blocker_stalled_wake`.
- The pass runs from the recovery-action sweep
(`reconcileActiveRecoveryActions`) and from the per-issue blocked sweep
(`reconcileResolvedDependencyWakeBackstop`, which visits each blocked
issue). No new worker.
- A waiter's agent that cannot read the stalled issue (`issue:read`,
which honors private visibility) is woken without its title, identifier
or recovery details; the activity entry withholds them too.
- **Database:** migration `0450` adds the partial unique index
`agent_wakeup_requests_issue_blocker_stalled_uq` on `(company_id,
idempotency_key)` for `issue_blocker_stalled:` keys in delivered or
pending statuses, so two concurrent sweeps cannot both deliver a stall.
It is built `CONCURRENTLY IF NOT EXISTS` outside a transaction (listed
in `MIGRATIONS_WITH_TOP_LEVEL_STATEMENTS`).
- **Queue:** `allowsDependencyBlockedWake` (in
`run-dispatch/domain/wake-context.ts`) lets a stall wake run while the
waiter's blockers are unresolved, at both dependency gates. Without it
the wake was parked until the stalled blocker resolved, which is never.
Pause holds are unchanged.
- **Agent guidance:** the wake payload carries `blockerStall`, and
`renderPaperclipWakePrompt` adds a "Stalled dependency" section. It
names the task and its recovery action and the board's next action, then
the three choices: re-delegate, escalate with a comment, or block with a
reason naming the stalled task.
- **Other reason lists:** `issue_blocker_stalled` joins the
responsible-user wake reasons, the conversation execution-wake reasons
(it never drives a chat turn) and the wake diagnostic's known reasons.
- **Board surface:**
- `GET /issues/:id` returns `stalledDependencies`, readable issues only
(`readableIssueEdgeIds`).
- `StalledDependencyNotice` shows on the issue's chat notices, next to
`IssueBlockedNotice`: each stalled child or blocker, its board next
action, a link, and the child's own Retry (`useTaskRetry`), offered only
when the child's interruption allows it.

## Verification

Red/green:
- `server/src/__tests__/issue-blocker-stall-wakeups.test.ts` (14 tests).
  - On master: no `issue_blocker_stalled` wake is raised.
- With this PR: the parent is woken once per stall, and re-woken after a
new stall. A blocker's dependent is woken.
- The t05 shape (an action resolved as `blocked`) wakes once, and
nothing more after a Retry.
- No wake for an agent-owned action, a done, unassigned or hidden
waiter, or an action resolved another way.
  - `listStalledDependencies` lists children and blockers.
- `heartbeat-dependency-scheduling.test.ts` "admits an
issue_blocker_stalled wake while a blocker is unresolved". On master the
wake was parked (`null`); once admitted, the run-start gate cancelled
it. With this PR it runs with `dependencyBlockedInteraction`. The file:
14 passed.
- `packages/adapter-utils` `server-utils.test.ts`: the new prompt test
failed on master (no `blockerStall`). The file: 141 passed.
- `ui/src/components/StalledDependencyNotice.test.tsx`: 3 passed.
`IssueChatThread.test.tsx`: 109 passed.

Regression and static checks:
- Nearby server suites (recovery durable wait, dependency wake routes,
recovery actions, run-preparation): 149 passed.
- `tsc --noEmit` passes for `packages/shared`, `server` and `ui/src`.
- `pnpm check:token-gates` is clean.

Review round 1 (Greptile, Superagent), each with a regression:
- A backlog waiter is never woken. The waiter's status and assignee are
guarded at enqueue.
- One stall per run: no coalescing, so a merged run cannot keep only the
last stall's context.
- Only a delivered or pending wake ends a stall. A refused one
(wake-on-demand off) is retried after 10 minutes, and an agent that
takes no wakes is skipped without writing a row.
- Company-wide passes resume after the last stall a capped pass reached.
The per-issue sweep also checks the issue's own children and blockers,
which covers an unassigned stalled blocker.
- The dependency gates no longer trust the reason string.
`verifyBlockerStallWake` requires a system request, the stalled issue's
current stall action, and a real child or blocker edge. An
agent-requested wake with the same context is parked (tested).
- The notice shows a refused Retry's reason, and a lost response as
"Taking longer than usual…", with Retry still available (tested).

Review round 2 (Greptile), each with a regression:
- Race: two passes claiming one stall leave one delivered row (unique
index; the loser's insert is skipped).
- The company recovery sweep selects companies whose only stall is a
resolved-`blocked` board action, so an unassigned stalled blocker with a
todo waiter is reached.
- Private stalled issue: the waiter's wake and activity carry no title,
identifier or recovery details.
- `GET /issues/:id` always returns `stalledDependencies`, so a cleared
stall replaces the cached list.
- The notice shows a failed child read with a Reload button (tested).
- `pnpm --filter @paperclipai/db check:migrations` passes.

Review round 3 (Greptile), each with a regression:
- A stall wake that fails to enqueue is retried: the recovery-action
pass reports `blockerStallWakeFailures` and the dependency pass counts
it in `enqueueFailed`, so the worker throws and retries at its backoff
(`issue-recovery-work-lifecycle.test.ts`).
- The notice drops a stall once the child's refreshed status has moved
on (`StalledDependencyNotice.test.tsx`, 7 tests).

## Risks

- A deploy wakes the waiters of every issue that is stalled today, once
each. That is intended (they are stranded now), and it's bounded at 200
stalls per pass.
- A stall wake may run while blockers are unresolved, like a comment
wake. It is bounded to one per stall, and pause holds still apply.
- The agent skill (`skills/paperclip`, CODEOWNER-owned) does not yet
list the new reason. The wake prompt carries the guidance.
- One additive index, built concurrently; no persisted run state change.
Existing rows cannot violate it before deploy, since no
`issue_blocker_stalled:` keys exist yet.

## Model Used

- Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, via Claude Code with
tool use (shell, file edits).

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either (a) linked existing issues with `Fixes: #` / `Closes
#` / `Refs #` OR (b) described the issue in-PR following the relevant
issue template
- [x] I have not referenced internal/instance-local Paperclip issues or
links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip`
URLs)
- [x] My branch name describes the change (e.g. `docs/...`, `fix/...`)
and contains no internal Paperclip ticket id or instance-derived details
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [ ] All Paperclip CI gates are green
- [ ] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
---
 .../adapter-utils/src/server-utils.test.ts    |  28 ++
 packages/adapter-utils/src/server-utils.ts    |  61 ++++
 packages/db/src/client.ts                     |   1 +
 .../migrations/0450_petite_frightful_four.sql |   1 +
 ...{0445_snapshot.json => 0450_snapshot.json} | 204 ++++++++++-
 packages/db/src/migrations/meta/_journal.json |   7 +
 .../db/src/schema/agent_wakeup_requests.ts    |   7 +
 packages/shared/src/constants.ts              |   8 +
 packages/shared/src/index.ts                  |   4 +
 packages/shared/src/types/index.ts            |   1 +
 packages/shared/src/types/issue.ts            |  20 ++
 .../heartbeat-dependency-scheduling.test.ts   |  68 ++++
 .../issue-blocker-stall-wakeups.test.ts       | 333 ++++++++++++++++++
 .../issue-recovery-work-lifecycle.test.ts     |  19 +
 .../modules/run-dispatch/adapters/postgres.ts |  17 +-
 .../run-dispatch/domain/wake-context.ts       |  17 +
 server/src/modules/run-dispatch/index.ts      |   1 +
 server/src/routes/issues.ts                   |  14 +-
 server/src/services/agent-conversations.ts    |   1 +
 server/src/services/heartbeat/queue.ts        |  21 +-
 .../src/services/heartbeat/run-preparation.ts |   2 +
 server/src/services/issue-read-timing.ts      |   2 +-
 .../recovery/blocker-stall-wakeups.ts         | 332 +++++++++++++++++
 server/src/services/recovery/service.ts       |  19 +-
 server/src/services/recovery/work.ts          |  26 +-
 ui/src/components/IssueChatThread.tsx         |   6 +
 .../StalledDependencyNotice.test.tsx          | 140 ++++++++
 ui/src/components/StalledDependencyNotice.tsx | 107 ++++++
 ui/src/pages/IssueDetail.tsx                  |   4 +
 29 files changed, 1455 insertions(+), 16 deletions(-)
 create mode 100644 packages/db/src/migrations/0450_petite_frightful_four.sql
 rename packages/db/src/migrations/meta/{0445_snapshot.json => 0450_snapshot.json} (99%)
 create mode 100644 server/src/__tests__/issue-blocker-stall-wakeups.test.ts
 create mode 100644 server/src/services/recovery/blocker-stall-wakeups.ts
 create mode 100644 ui/src/components/StalledDependencyNotice.test.tsx
 create mode 100644 ui/src/components/StalledDependencyNotice.tsx

diff --git a/packages/adapter-utils/src/server-utils.test.ts b/packages/adapter-utils/src/server-utils.test.ts
index 1aafda0e3ed..0f5b3da9bb4 100644
--- a/packages/adapter-utils/src/server-utils.test.ts
+++ b/packages/adapter-utils/src/server-utils.test.ts
@@ -3008,6 +3008,34 @@ describe("renderPaperclipWakePrompt", () => {
     expect(JSON.parse(stringifyPaperclipWakePayload(payload)!)).toMatchObject({ dispositionRepair: payload.dispositionRepair });
   });
 
+  it("tells the agent what it can do when a child or blocker stalls on the board", () => {
+    const payload = {
+      reason: "issue_blocker_stalled",
+      issue: { id: "parent-1", identifier: "CHA-5", title: "Coordinate the rollout", status: "blocked", priority: "medium" },
+      blockerStall: {
+        stalledIssueId: "child-1",
+        stalledIssueIdentifier: "CHA-8",
+        stalledIssueTitle: "Ship the migration",
+        stalledIssueStatus: "blocked",
+        relation: "child",
+        recoveryAction: { id: "action-1", kind: "run_recovery", cause: "execution_recovery_budget_exhausted",
+          status: "escalated", ownerType: "board", nextAction: "Retry the run or reassign the task" },
+      },
+    };
+    expect(JSON.parse(stringifyPaperclipWakePayload(payload) ?? "{}")).toMatchObject({
+      blockerStall: { stalledIssueIdentifier: "CHA-8", relation: "child",
+        recoveryAction: { cause: "execution_recovery_budget_exhausted", nextAction: "Retry the run or reassign the task" } },
+    });
+    const prompt = renderPaperclipWakePrompt(payload);
+    expect(prompt).toContain("## Stalled dependency");
+    expect(prompt).toContain("CHA-8 Ship the migration (blocked)");
+    expect(prompt).toContain("execution_recovery_budget_exhausted");
+    expect(prompt).toContain("Retry the run or reassign the task");
+    expect(prompt).toMatch(/re-delegate/i);
+    expect(prompt).toMatch(/escalate/i);
+    expect(prompt).toMatch(/block this issue/i);
+  });
+
   it("includes continuation and child issue summaries in structured wake context", () => {
     const payload = {
       reason: "issue_children_completed",
diff --git a/packages/adapter-utils/src/server-utils.ts b/packages/adapter-utils/src/server-utils.ts
index e7debfb0deb..4fbd4ae8938 100644
--- a/packages/adapter-utils/src/server-utils.ts
+++ b/packages/adapter-utils/src/server-utils.ts
@@ -704,6 +704,22 @@ type PaperclipWakeChildIssueSummary = {
   summary: string | null;
 };
 
+/** `issue_blocker_stalled`: the child or blocker that stalled on a board-owned recovery action. */
+type PaperclipWakeBlockerStall = {
+  stalledIssueId: string | null;
+  stalledIssueIdentifier: string | null;
+  stalledIssueTitle: string | null;
+  stalledIssueStatus: string | null;
+  relation: "child" | "blocker";
+  recoveryAction: {
+    kind: string | null;
+    cause: string | null;
+    status: string | null;
+    ownerType: string | null;
+    nextAction: string | null;
+  };
+};
+
 type PaperclipWakeBlockerSummary = {
   id: string | null;
   identifier: string | null;
@@ -817,6 +833,7 @@ type PaperclipWakePayload = {
   annotationDeltas: PaperclipWakeAnnotationDelta[];
   childIssueSummaries: PaperclipWakeChildIssueSummary[];
   childIssueSummaryTruncated: boolean;
+  blockerStall: PaperclipWakeBlockerStall | null;
   commentIds: string[];
   latestCommentId: string | null;
   comments: PaperclipWakeComment[];
@@ -1322,6 +1339,29 @@ function normalizePaperclipWakeChildIssueSummary(
   return { id, identifier, title, status, priority, summary };
 }
 
+function normalizePaperclipWakeBlockerStall(value: unknown): PaperclipWakeBlockerStall | null {
+  const stall = parseObject(value);
+  const text = (field: unknown) => asString(field, "").trim() || null;
+  const stalledIssueId = text(stall.stalledIssueId);
+  const stalledIssueIdentifier = text(stall.stalledIssueIdentifier);
+  if (!stalledIssueId && !stalledIssueIdentifier) return null;
+  const action = parseObject(stall.recoveryAction);
+  return {
+    stalledIssueId,
+    stalledIssueIdentifier,
+    stalledIssueTitle: text(stall.stalledIssueTitle),
+    stalledIssueStatus: text(stall.stalledIssueStatus),
+    relation: stall.relation === "blocker" ? "blocker" : "child",
+    recoveryAction: {
+      kind: text(action.kind),
+      cause: text(action.cause),
+      status: text(action.status),
+      ownerType: text(action.ownerType),
+      nextAction: text(action.nextAction),
+    },
+  };
+}
+
 function normalizePaperclipWakeBlockerSummary(
   value: unknown,
 ): PaperclipWakeBlockerSummary | null {
@@ -1895,6 +1935,7 @@ export function normalizePaperclipWakePayload(
       payload.childIssueSummaryTruncated,
       false,
     ),
+    blockerStall: normalizePaperclipWakeBlockerStall(payload.blockerStall),
     commentIds,
     latestCommentId: asString(payload.latestCommentId, "").trim() || null,
     comments,
@@ -3067,6 +3108,26 @@ function renderPaperclipWakePromptBody(
     }
   }
 
+  if (normalized.blockerStall) {
+    const stall = normalized.blockerStall;
+    const label = stall.stalledIssueIdentifier ?? stall.stalledIssueId ?? "unknown";
+    const action = stall.recoveryAction;
+    lines.push(
+      "",
+      "## Stalled dependency",
+      "",
+      `Your ${stall.relation === "child" ? "child issue" : "blocker"} ${label}${stall.stalledIssueTitle ? ` ${stall.stalledIssueTitle}` : ""}${stall.stalledIssueStatus ? ` (${stall.stalledIssueStatus})` : ""} cannot continue on its own: it waits on a recovery action that needs the board.`,
+      `- recovery: ${action.kind ?? "unknown"}${action.cause ? ` — ${action.cause}` : ""}${action.status ? ` (${action.status})` : ""}`,
+      ...(action.nextAction ? [`- next action for the board: ${action.nextAction}`] : []),
+      "",
+      "Choose one, then stop:",
+      `- Re-delegate: if the work can be done another way, create or reassign a task for it and stop depending on ${label}.`,
+      `- Escalate: comment on this issue with what is stuck and what the board must do on ${label} (its Retry or reassignment), so the board sees it here.`,
+      `- Block this issue with a reason that names ${label} and its recovery action, if nothing else can move until the board acts.`,
+      `Do not redo ${label}'s work yourself while it is assigned, and do not wait silently.`,
+    );
+  }
+
   if (normalized.childIssueSummaries.length > 0) {
     lines.push("", "Direct child issue summaries:");
     for (const child of normalized.childIssueSummaries) {
diff --git a/packages/db/src/client.ts b/packages/db/src/client.ts
index 731b9d044bc..8c480ccc8e5 100644
--- a/packages/db/src/client.ts
+++ b/packages/db/src/client.ts
@@ -614,6 +614,7 @@ const MIGRATIONS_WITH_TOP_LEVEL_STATEMENTS = new Set([
   "0435_premium_puff_adder.sql",
   "0436_legal_reavers.sql",
   "0447_legacy_controller_process.sql",
+  "0450_petite_frightful_four.sql",
 
 
   "0384_funny_adam_warlock.sql",
diff --git a/packages/db/src/migrations/0450_petite_frightful_four.sql b/packages/db/src/migrations/0450_petite_frightful_four.sql
new file mode 100644
index 00000000000..6b004b13aba
--- /dev/null
+++ b/packages/db/src/migrations/0450_petite_frightful_four.sql
@@ -0,0 +1 @@
+CREATE UNIQUE INDEX CONCURRENTLY IF NOT EXISTS "agent_wakeup_requests_issue_blocker_stalled_uq" ON "agent_wakeup_requests" USING btree ("company_id","idempotency_key") WHERE "agent_wakeup_requests"."idempotency_key" LIKE 'issue_blocker_stalled:%' AND "agent_wakeup_requests"."status" IN ('queued', 'deferred_issue_execution', 'claimed', 'coalesced', 'completed');
\ No newline at end of file
diff --git a/packages/db/src/migrations/meta/0445_snapshot.json b/packages/db/src/migrations/meta/0450_snapshot.json
similarity index 99%
rename from packages/db/src/migrations/meta/0445_snapshot.json
rename to packages/db/src/migrations/meta/0450_snapshot.json
index 7ab3519b394..af424af109a 100644
--- a/packages/db/src/migrations/meta/0445_snapshot.json
+++ b/packages/db/src/migrations/meta/0450_snapshot.json
@@ -1,6 +1,6 @@
 {
-  "id": "f0d8430b-7abf-4232-86a9-11a268a0d20e",
-  "prevId": "93cbf124-1264-4bc3-a27d-b651ce9640e7",
+  "id": "b8f43f1a-3230-4cda-991d-0e7b6323114b",
+  "prevId": "4bd9d289-9cb8-4262-9dd7-04ce2b6020c4",
   "version": "7",
   "dialect": "postgresql",
   "tables": {
@@ -4102,6 +4102,28 @@
           "method": "btree",
           "with": {}
         },
+        "agent_wakeup_requests_issue_blocker_stalled_uq": {
+          "name": "agent_wakeup_requests_issue_blocker_stalled_uq",
+          "columns": [
+            {
+              "expression": "company_id",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            },
+            {
+              "expression": "idempotency_key",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": true,
+          "where": "\"agent_wakeup_requests\".\"idempotency_key\" LIKE 'issue_blocker_stalled:%' AND \"agent_wakeup_requests\".\"status\" IN ('queued', 'deferred_issue_execution', 'claimed', 'coalesced', 'completed')",
+          "concurrently": true,
+          "method": "btree",
+          "with": {}
+        },
         "agent_wakeup_requests_company_payload_issue_idx": {
           "name": "agent_wakeup_requests_company_payload_issue_idx",
           "columns": [
@@ -4252,6 +4274,18 @@
           "primaryKey": false,
           "notNull": false
         },
+        "harness_verified_digest": {
+          "name": "harness_verified_digest",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "harness_verified_at": {
+          "name": "harness_verified_at",
+          "type": "timestamp with time zone",
+          "primaryKey": false,
+          "notNull": false
+        },
         "reports_to": {
           "name": "reports_to",
           "type": "uuid",
@@ -21965,6 +21999,112 @@
       "checkConstraints": {},
       "isRLSEnabled": false
     },
+    "public.controller_instances": {
+      "name": "controller_instances",
+      "schema": "",
+      "columns": {
+        "boot_id": {
+          "name": "boot_id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true
+        },
+        "epoch": {
+          "name": "epoch",
+          "type": "bigserial",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "process_space": {
+          "name": "process_space",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "pid": {
+          "name": "pid",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "started_at": {
+          "name": "started_at",
+          "type": "timestamp with time zone",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "renewed_at": {
+          "name": "renewed_at",
+          "type": "timestamp with time zone",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "lease_expires_at": {
+          "name": "lease_expires_at",
+          "type": "timestamp with time zone",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "fenced_at": {
+          "name": "fenced_at",
+          "type": "timestamp with time zone",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "fenced_by_epoch": {
+          "name": "fenced_by_epoch",
+          "type": "bigint",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "stopped_at": {
+          "name": "stopped_at",
+          "type": "timestamp with time zone",
+          "primaryKey": false,
+          "notNull": false
+        }
+      },
+      "indexes": {
+        "controller_instances_epoch_idx": {
+          "name": "controller_instances_epoch_idx",
+          "columns": [
+            {
+              "expression": "epoch",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": true,
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
+        },
+        "controller_instances_lease_idx": {
+          "name": "controller_instances_lease_idx",
+          "columns": [
+            {
+              "expression": "lease_expires_at",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": false,
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
+        }
+      },
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
     "public.cost_events": {
       "name": "cost_events",
       "schema": "",
@@ -34856,6 +34996,12 @@
           "primaryKey": false,
           "notNull": false
         },
+        "controller_process": {
+          "name": "controller_process",
+          "type": "jsonb",
+          "primaryKey": false,
+          "notNull": false
+        },
         "execution_stage": {
           "name": "execution_stage",
           "type": "text",
@@ -35125,6 +35271,22 @@
           "method": "btree",
           "with": {}
         },
+        "heartbeat_runs_legacy_controller_lease_idx": {
+          "name": "heartbeat_runs_legacy_controller_lease_idx",
+          "columns": [
+            {
+              "expression": "controller_lease_expires_at",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": false,
+          "where": "\"heartbeat_runs\".\"runtime_mode\" = 'legacy' AND \"heartbeat_runs\".\"status\" = 'running' AND \"heartbeat_runs\".\"controller_boot_id\" is not null",
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
+        },
         "heartbeat_runs_cost_accounting_pending_idx": {
           "name": "heartbeat_runs_cost_accounting_pending_idx",
           "columns": [
@@ -44766,6 +44928,12 @@
           "primaryKey": false,
           "notNull": false
         },
+        "lease_holder": {
+          "name": "lease_holder",
+          "type": "jsonb",
+          "primaryKey": false,
+          "notNull": false
+        },
         "controller_boot_id": {
           "name": "controller_boot_id",
           "type": "text",
@@ -44930,6 +45098,38 @@
           "method": "btree",
           "with": {}
         },
+        "native_run_finalizations_finalizer_lease_idx": {
+          "name": "native_run_finalizations_finalizer_lease_idx",
+          "columns": [
+            {
+              "expression": "lease_expires_at",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": false,
+          "where": "\"native_run_finalizations\".\"lease_owner\" like 'native-finalizer:%'",
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
+        },
+        "native_run_finalizations_cleanup_lease_idx": {
+          "name": "native_run_finalizations_cleanup_lease_idx",
+          "columns": [
+            {
+              "expression": "lease_expires_at",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": false,
+          "where": "\"native_run_finalizations\".\"lease_owner\" like 'native-cleanup:%'",
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
+        },
         "native_run_finalizations_accepted_result_lease_idx": {
           "name": "native_run_finalizations_accepted_result_lease_idx",
           "columns": [
diff --git a/packages/db/src/migrations/meta/_journal.json b/packages/db/src/migrations/meta/_journal.json
index 5d8bc8d9a27..fbb1f107ccc 100644
--- a/packages/db/src/migrations/meta/_journal.json
+++ b/packages/db/src/migrations/meta/_journal.json
@@ -3137,6 +3137,13 @@
       "when": 1794147993995,
       "tag": "0449_controller_instances",
       "breakpoints": true
+    },
+    {
+      "idx": 450,
+      "version": "7",
+      "when": 1794170960477,
+      "tag": "0450_petite_frightful_four",
+      "breakpoints": true
     }
   ]
 }
\ No newline at end of file
diff --git a/packages/db/src/schema/agent_wakeup_requests.ts b/packages/db/src/schema/agent_wakeup_requests.ts
index 83006f2616c..11c82c37122 100644
--- a/packages/db/src/schema/agent_wakeup_requests.ts
+++ b/packages/db/src/schema/agent_wakeup_requests.ts
@@ -99,6 +99,13 @@ export const agentWakeupRequests = pgTable(
     chatCompletionIdempotencyUq: uniqueIndex("agent_wakeup_requests_chat_completion_uq")
       .on(table.companyId, table.idempotencyKey)
       .where(sql`${table.idempotencyKey} LIKE 'chat-completion:%'`),
+    // One delivered or pending wake per stall (issue_blocker_stalled). Refused
+    // wakes (skipped, failed, cancelled) are not covered, so a stall retries
+    // once its agent takes wakes again; concurrent sweeps cannot both deliver.
+    issueBlockerStalledIdempotencyUq: uniqueIndex("agent_wakeup_requests_issue_blocker_stalled_uq")
+      .on(table.companyId, table.idempotencyKey)
+      .concurrently()
+      .where(sql`${table.idempotencyKey} LIKE 'issue_blocker_stalled:%' AND ${table.status} IN ('queued', 'deferred_issue_execution', 'claimed', 'coalesced', 'completed')`),
     companyPayloadIssueIdx: index("agent_wakeup_requests_company_payload_issue_idx").on(
       table.companyId,
       sql`(${table.payload} ->> 'issueId')`,
diff --git a/packages/shared/src/constants.ts b/packages/shared/src/constants.ts
index 341858b027a..ec1cd7fca0c 100644
--- a/packages/shared/src/constants.ts
+++ b/packages/shared/src/constants.ts
@@ -417,6 +417,14 @@ export const ISSUE_RECOVERY_ACTION_OWNER_TYPES = [
 ] as const;
 export type IssueRecoveryActionOwnerType = (typeof ISSUE_RECOVERY_ACTION_OWNER_TYPES)[number];
 
+/**
+ * Wake reason for an agent whose child or blocker stalled on a recovery action
+ * that needs the board. Woken once per stall (one recovery action).
+ */
+export const ISSUE_BLOCKER_STALLED_WAKE_REASON = "issue_blocker_stalled" as const;
+export const ISSUE_BLOCKER_STALL_RELATIONS = ["child", "blocker"] as const;
+export type IssueBlockerStallRelation = (typeof ISSUE_BLOCKER_STALL_RELATIONS)[number];
+
 export const ISSUE_RECOVERY_ACTION_OUTCOMES = [
   "restored",
   "handed_back",
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index 1cfff379faf..9ab71a2cf39 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -404,6 +404,8 @@ export {
   ISSUE_DISPOSITION_REPAIR_RETRY_REASON,
   ISSUE_RECOVERY_ACTION_STATUSES,
   ISSUE_RECOVERY_ACTION_OWNER_TYPES,
+  ISSUE_BLOCKER_STALLED_WAKE_REASON,
+  ISSUE_BLOCKER_STALL_RELATIONS,
   ISSUE_RECOVERY_ACTION_OUTCOMES,
   pluginOperationIssueOriginKind,
   isPluginOperationIssueOriginKind,
@@ -597,6 +599,7 @@ export {
   type IssueRecoveryActionKind,
   type IssueRecoveryActionStatus,
   type IssueRecoveryActionOwnerType,
+  type IssueBlockerStallRelation,
   type IssueRecoveryActionOutcome,
   type IssueRelationType,
   type IssueTreeControlMode,
@@ -1122,6 +1125,7 @@ export type {
   IssueBlockedInboxSeverity,
   IssueBlockedInboxState,
   IssueRecoveryAction,
+  IssueBlockerStalledWakeContext,
   IssueWatchdog,
   IssueWatchdogStatus,
   IssueWatchdogSummary,
diff --git a/packages/shared/src/types/index.ts b/packages/shared/src/types/index.ts
index 4aa18840240..c2e73fb144a 100644
--- a/packages/shared/src/types/index.ts
+++ b/packages/shared/src/types/index.ts
@@ -724,6 +724,7 @@ export type {
   IssueBlockedInboxSeverity,
   IssueBlockedInboxState,
   IssueRecoveryAction,
+  IssueBlockerStalledWakeContext,
   SuccessfulRunHandoffState,
   SuccessfulRunHandoffStateKind,
   IssueScheduledRetry,
diff --git a/packages/shared/src/types/issue.ts b/packages/shared/src/types/issue.ts
index f78d79c7449..d053454552a 100644
--- a/packages/shared/src/types/issue.ts
+++ b/packages/shared/src/types/issue.ts
@@ -25,6 +25,7 @@ import type {
   IssueRecoveryActionKind,
   IssueRecoveryActionOutcome,
   IssueRecoveryActionOwnerType,
+  IssueBlockerStallRelation,
   IssueRecoveryActionStatus,
   IssueWorkMode,
   IssueThreadInteractionContinuationPolicy,
@@ -623,6 +624,23 @@ export interface IssueUnblockDescriptor {
   action: string;
 }
 
+/** Wake context of `issue_blocker_stalled`: the stalled issue and the recovery action it waits on. */
+export interface IssueBlockerStalledWakeContext {
+  stalledIssueId: string;
+  stalledIssueIdentifier: string | null;
+  stalledIssueTitle: string;
+  stalledIssueStatus: string;
+  relation: IssueBlockerStallRelation;
+  recoveryAction: {
+    id: string;
+    kind: string;
+    cause: string;
+    status: string;
+    ownerType: string;
+    nextAction: string;
+  };
+}
+
 export interface IssueRecoveryAction {
   /** Read-only activity of the exact native run named by the wake policy. */
   nativeRunActivity?: {
@@ -974,6 +992,8 @@ export interface Issue {
   blockedTransitionAt?: Date | null;
   blockedOwnerNotifiedAt?: Date | null;
   activeRecoveryAction?: IssueRecoveryAction | null;
+  /** Children and blockers stalled on a recovery action that needs the board (issue detail only). */
+  stalledDependencies?: IssueBlockerStalledWakeContext[];
   successfulRunHandoff?: SuccessfulRunHandoffState | null;
   executionBlocker?: ExecutionBlocker | null;
   interruption?: TaskInterruptionPresentation | null;
diff --git a/server/src/__tests__/heartbeat-dependency-scheduling.test.ts b/server/src/__tests__/heartbeat-dependency-scheduling.test.ts
index 3918fcb3ea1..85cc945b7f5 100644
--- a/server/src/__tests__/heartbeat-dependency-scheduling.test.ts
+++ b/server/src/__tests__/heartbeat-dependency-scheduling.test.ts
@@ -40,6 +40,7 @@ import {
 import { resolveExternalTestDatabaseUrl } from "./helpers/external-test-database.js";
 import { heartbeatService } from "../services/heartbeat.ts";
 import { runningProcesses } from "../adapters/index.ts";
+import { createPostgresRunDispatchAdapter } from "../modules/run-dispatch/adapters/postgres.js";
 import { taskInterruptionPresentation } from "../services/task-interruption-presentation.js";
 
 const mockAdapterExecute = vi.hoisted(() =>
@@ -815,6 +816,73 @@ describeEmbeddedPostgres("heartbeat dependency-aware queued run selection", () =
     expect(noActiveRuns).toBe(true);
   });
 
+  it("admits an issue_blocker_stalled wake while a blocker is unresolved", async () => {
+    // The waiter's blocker stalled on a board-owned recovery action. Parking
+    // this wake until the blocker resolves would hide the stall again.
+    const companyId = randomUUID();
+    const agentId = randomUUID();
+    const blockerId = randomUUID();
+    const dependentId = randomUUID();
+    await db.insert(companies).values({
+      id: companyId, name: "Paperclip", issuePrefix: `T${companyId.replace(/-/g, "").slice(0, 6).toUpperCase()}`,
+      requireBoardApprovalForNewAgents: false, defaultResponsibleUserId: "responsible-user",
+    });
+    await db.insert(companyMemberships).values({ companyId, principalType: "user", principalId: "responsible-user", status: "active", membershipRole: "member" });
+    await db.insert(agents).values({
+      id: agentId, companyId, name: "CodexCoder", role: "engineer", status: "active", adapterType: "codex_local",
+      adapterConfig: {}, runtimeConfig: { heartbeat: { wakeOnDemand: true, maxConcurrentRuns: 1 } }, permissions: {},
+    });
+    await db.insert(issues).values([
+      { id: blockerId, companyId, title: "Stalled blocker", status: "blocked", priority: "high", responsibleUserId: "responsible-user" },
+      { id: dependentId, companyId, title: "Waiting dependent", status: "blocked", priority: "medium", assigneeAgentId: agentId,
+        responsibleUserId: "responsible-user" },
+    ]);
+    await db.insert(issueRelations).values({ companyId, issueId: blockerId, relatedIssueId: dependentId, type: "blocks" });
+    const [action] = await db.insert(issueRecoveryActions).values({ companyId, sourceIssueId: blockerId, kind: "run_recovery",
+      status: "resolved", outcome: "blocked", ownerType: "board", cause: "native_session_retry_exhausted",
+      fingerprint: "stall", nextAction: "Retry", resolvedAt: new Date() }).returning();
+    const stallWake = (requestedByActorType: "system" | "agent") => heartbeat.wakeup(agentId, {
+      source: "automation",
+      triggerDetail: "system",
+      reason: "issue_blocker_stalled",
+      payload: { issueId: dependentId, stalledIssueId: blockerId },
+      idempotencyKey: `issue_blocker_stalled:${dependentId}:${blockerId}:${action.id}:${requestedByActorType}`,
+      requestedByActorType,
+      requestedByActorId: requestedByActorType === "system" ? "issue-blocker-stall" : agentId,
+      contextSnapshot: { issueId: dependentId, wakeReason: "issue_blocker_stalled",
+        blockerStall: { stalledIssueId: blockerId, relation: "blocker", recoveryAction: { id: action.id } } },
+    });
+
+    // The reason string alone is not trusted: an agent cannot use it to skip the blocker gate.
+    expect(await stallWake("agent")).toBeNull();
+
+    const stalledWake = await stallWake("system");
+    expect(stalledWake).not.toBeNull();
+    await heartbeat.drainActiveRunExecutions();
+    const [run] = await db.select({ status: heartbeatRuns.status, contextSnapshot: heartbeatRuns.contextSnapshot })
+      .from(heartbeatRuns).where(eq(heartbeatRuns.id, stalledWake!.id));
+    expect(run?.status).toBe("succeeded");
+    expect(run?.contextSnapshot).toMatchObject({ dependencyBlockedInteraction: true, unresolvedBlockerIssueIds: [blockerId] });
+
+    // A resource wait replaces the run with a server-created retry that keeps
+    // the stall context but not the wake reason. The retry gate still admits it.
+    const retryGate = async (contextSnapshot: Record<string, unknown>) => {
+      const [retry] = await db.insert(heartbeatRuns).values({ companyId, agentId, invocationSource: "automation",
+        status: "scheduled_retry", scheduledRetryAt: new Date(), scheduledRetryReason: "transient_failure",
+        retryOfRunId: stalledWake!.id, contextSnapshot }).returning();
+      return createPostgresRunDispatchAdapter(db).evaluateScheduledRetryGate({ companyId, runId: retry.id,
+        retryReasonOverride: "transient_failure", now: new Date() });
+    };
+    const replacement: Record<string, unknown> = { ...(run!.contextSnapshot as Record<string, unknown>),
+      wakeReason: "bounded_transient_heartbeat_retry", retryReason: "transient_failure", retryOfRunId: stalledWake!.id };
+    expect(await retryGate(replacement)).toMatchObject({ allowed: true });
+    const { blockerStall: _stall, ...withoutStall } = replacement;
+    expect(await retryGate(withoutStall)).toMatchObject({ allowed: false, errorCode: "issue_dependencies_blocked" });
+    // Once the stall's action is no longer current, the retry waits for the blocker like any other.
+    await db.update(issueRecoveryActions).set({ outcome: "restored" }).where(eq(issueRecoveryActions.id, action.id));
+    expect(await retryGate(replacement)).toMatchObject({ allowed: false, errorCode: "issue_dependencies_blocked" });
+  });
+
   it("defers issue_blockers_resolved as a follow-up when the same issue is already running", async () => {
     const companyId = randomUUID();
     const agentId = randomUUID();
diff --git a/server/src/__tests__/issue-blocker-stall-wakeups.test.ts b/server/src/__tests__/issue-blocker-stall-wakeups.test.ts
new file mode 100644
index 00000000000..d77227daabe
--- /dev/null
+++ b/server/src/__tests__/issue-blocker-stall-wakeups.test.ts
@@ -0,0 +1,333 @@
+import { randomUUID } from "node:crypto";
+import { eq, sql } from "drizzle-orm";
+import { afterAll, afterEach, beforeAll, describe, expect, it, vi } from "vitest";
+import {
+  activityLog, agents, agentWakeupRequests, companies, createDb, heartbeatRuns, issueRecoveryActions, issueRelations, issues, type Db,
+} from "@paperclipai/db";
+import { ISSUE_BLOCKER_STALLED_WAKE_REASON } from "@paperclipai/shared";
+import { recoveryService } from "../services/recovery/service.js";
+import { issueBlockerStalledWakeKey, listStalledDependencies, recoveryActionSweepCondition, wakeWaitersOfStalledIssues } from "../services/recovery/blocker-stall-wakeups.js";
+import { getEmbeddedPostgresTestSupport, startEmbeddedPostgresTestDatabase } from "./helpers/embedded-postgres.js";
+import { resolveExternalTestDatabaseUrl } from "./helpers/external-test-database.js";
+
+const external = resolveExternalTestDatabaseUrl("PAPERCLIP_RECOVERY_ACTION_TEST_DATABASE_URL");
+const support = external ? { supported: true } : await getEmbeddedPostgresTestSupport();
+
+// Restart chaos w-20261108T181313-s9701 t05: a child blocked on a board-owned
+// recovery action (retries exhausted), and its parent sat silently blocked for
+// 50+ minutes because only completion or resolution wakes a parent.
+(support.supported ? describe : describe.skip)("issue_blocker_stalled wakes", () => {
+  let temporary: Awaited<ReturnType<typeof startEmbeddedPostgresTestDatabase>> | undefined;
+  let db: Db;
+  beforeAll(async () => {
+    if (!external) temporary = await startEmbeddedPostgresTestDatabase("blocker-stall-");
+    db = createDb(external ?? temporary!.connectionString);
+    db.$client.options.onnotice = () => {};
+  }, 30_000);
+  afterEach(async () => { vi.restoreAllMocks(); await db.execute(sql`truncate companies cascade`); });
+  afterAll(async () => { await db?.$client.end({ timeout: 1 }); await temporary?.cleanup(); });
+
+  // Records each wake the way the queue does, so the idempotency check sees it.
+  function wakeRecorder() {
+    const calls: Array<{ agentId: string; input: Record<string, any> }> = [];
+    const enqueueWakeup = vi.fn(async (agentId: string, input: Record<string, any>) => {
+      calls.push({ agentId, input });
+      const [row] = await db.insert(agentWakeupRequests).values({ companyId: input.payload.companyId ?? companyIdOf.get(agentId)!,
+        agentId, source: input.source, triggerDetail: input.triggerDetail, reason: input.reason, payload: input.payload,
+        idempotencyKey: input.idempotencyKey, status: "queued" }).returning();
+      return { id: row.id };
+    });
+    return { calls, enqueueWakeup };
+  }
+  const companyIdOf = new Map<string, string>();
+
+  async function fixture(options: { ownerType?: "board" | "agent"; status?: "active" | "escalated" } = {}) {
+    const companyId = randomUUID(), parentAgent = randomUUID(), childAgent = randomUUID();
+    await db.insert(companies).values({ id: companyId, name: "Stall", issuePrefix: `S${companyId.slice(0, 6)}` });
+    await db.insert(agents).values([
+      { id: parentAgent, companyId, name: "Parent owner", role: "engineer", status: "idle" },
+      { id: childAgent, companyId, name: "Child owner", role: "engineer", status: "idle" },
+    ]);
+    companyIdOf.set(parentAgent, companyId); companyIdOf.set(childAgent, companyId);
+    const [parent] = await db.insert(issues).values({ companyId, title: "Parent", status: "blocked", assigneeAgentId: parentAgent }).returning();
+    const [child] = await db.insert(issues).values({ companyId, title: "Child", status: "blocked", parentId: parent.id,
+      assigneeAgentId: childAgent }).returning();
+    const [action] = await db.insert(issueRecoveryActions).values({ companyId, sourceIssueId: child.id,
+      kind: "run_recovery", status: options.status ?? "escalated", ownerType: options.ownerType ?? "board",
+      cause: "execution_recovery_budget_exhausted", fingerprint: "fixture", nextAction: "Retry the run or reassign the task" }).returning();
+    return { companyId, parentAgent, childAgent, parent, child, action };
+  }
+
+  it("wakes the parent's assignee once per stall, with the stalled child and its recovery action", async () => {
+    const f = await fixture();
+    const { calls, enqueueWakeup } = wakeRecorder();
+    const service = recoveryService(db, { enqueueWakeup: enqueueWakeup as never });
+    await service.reconcileActiveRecoveryActions({ companyId: f.companyId });
+    await service.reconcileActiveRecoveryActions({ companyId: f.companyId });
+    const parentWakes = calls.filter(call => call.input.reason === ISSUE_BLOCKER_STALLED_WAKE_REASON);
+    expect(parentWakes).toHaveLength(1);
+    expect(parentWakes[0]).toMatchObject({ agentId: f.parentAgent, input: {
+      idempotencyKey: issueBlockerStalledWakeKey({ waiterIssueId: f.parent.id, stalledIssueId: f.child.id, recoveryActionId: f.action.id }),
+      contextSnapshot: { issueId: f.parent.id, wakeReason: ISSUE_BLOCKER_STALLED_WAKE_REASON, blockerStall: {
+        stalledIssueId: f.child.id, stalledIssueStatus: "blocked", relation: "child",
+        recoveryAction: { id: f.action.id, status: "escalated", ownerType: "board", nextAction: "Retry the run or reassign the task" },
+      } },
+    } });
+    const activity = await db.select().from(activityLog).where(eq(activityLog.action, "issue.blocker_stalled_wake"));
+    expect(activity).toHaveLength(1);
+    expect(activity[0]).toMatchObject({ entityId: f.parent.id, actorType: "system" });
+
+    // Unstalled, then stalled again: a new recovery action is a new stall.
+    await db.update(issueRecoveryActions).set({ status: "resolved", resolvedAt: new Date() }).where(eq(issueRecoveryActions.id, f.action.id));
+    const [again] = await db.insert(issueRecoveryActions).values({ companyId: f.companyId, sourceIssueId: f.child.id,
+      kind: "run_recovery", status: "escalated", ownerType: "board", cause: "execution_recovery_budget_exhausted",
+      fingerprint: "fixture-2", nextAction: "Retry" }).returning();
+    await service.reconcileActiveRecoveryActions({ companyId: f.companyId });
+    const later = calls.filter(call => call.input.reason === ISSUE_BLOCKER_STALLED_WAKE_REASON);
+    expect(later).toHaveLength(2);
+    expect(later[1]!.input.contextSnapshot.blockerStall.recoveryAction.id).toBe(again.id);
+  });
+
+  it("wakes the assignee of an issue the stalled one blocks", async () => {
+    const f = await fixture();
+    const dependentAgent = randomUUID();
+    await db.insert(agents).values({ id: dependentAgent, companyId: f.companyId, name: "Dependent owner", role: "engineer", status: "idle" });
+    companyIdOf.set(dependentAgent, f.companyId);
+    const [dependent] = await db.insert(issues).values({ companyId: f.companyId, title: "Dependent", status: "blocked",
+      assigneeAgentId: dependentAgent }).returning();
+    await db.insert(issueRelations).values({ companyId: f.companyId, issueId: f.child.id, relatedIssueId: dependent.id, type: "blocks" });
+    const { calls, enqueueWakeup } = wakeRecorder();
+    await recoveryService(db, { enqueueWakeup: enqueueWakeup as never }).reconcileActiveRecoveryActions({ companyId: f.companyId });
+    const stalled = calls.filter(call => call.input.reason === ISSUE_BLOCKER_STALLED_WAKE_REASON);
+    expect(stalled.map(call => [call.agentId, call.input.contextSnapshot.blockerStall.relation]).sort())
+      .toEqual([[dependentAgent, "blocker"], [f.parentAgent, "child"]].sort());
+  });
+
+  it("wakes only the swept waiter for a shared stalled blocker, so N dependents cost N, not N squared", async () => {
+    const f = await fixture();
+    const dependentAgent = randomUUID();
+    await db.insert(agents).values({ id: dependentAgent, companyId: f.companyId, name: "Dependent owner", role: "engineer", status: "idle" });
+    companyIdOf.set(dependentAgent, f.companyId);
+    const dependents = await db.insert(issues).values([1, 2, 3].map(index => ({ companyId: f.companyId,
+      title: `Dependent ${index}`, status: "blocked" as const, assigneeAgentId: dependentAgent }))).returning();
+    await db.insert(issueRelations).values(dependents.map(dependent => ({ companyId: f.companyId, issueId: f.child.id,
+      relatedIssueId: dependent.id, type: "blocks" as const })));
+    const { calls, enqueueWakeup } = wakeRecorder();
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId, issueId: dependents[0]!.id });
+    expect(calls.map(call => call.input.payload.issueId)).toEqual([dependents[0]!.id]);
+    // The stalled issue's own pass reaches every waiter, skipping those already woken.
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId, issueId: f.child.id });
+    expect(calls.map(call => call.input.payload.issueId).sort())
+      .toEqual([f.parent.id, ...dependents.map(dependent => dependent.id)].sort());
+  });
+
+  it("pages past waiters whose agents take no wakes, so later waiters are reached", async () => {
+    const f = await fixture();
+    const [sleepy, awake] = [randomUUID(), randomUUID()];
+    await db.insert(agents).values([
+      { id: sleepy, companyId: f.companyId, name: "Sleepy", role: "engineer", status: "paused" },
+      { id: awake, companyId: f.companyId, name: "Awake", role: "engineer", status: "idle" },
+    ]);
+    companyIdOf.set(sleepy, f.companyId); companyIdOf.set(awake, f.companyId);
+    const rows = Array.from({ length: 101 }, (_, index) => ({ id: `00000000-0000-4000-8000-${String(index).padStart(12, "0")}`,
+      companyId: f.companyId, title: `Waiter ${index}`, status: "todo" as const, assigneeAgentId: index < 100 ? sleepy : awake }));
+    await db.insert(issues).values(rows);
+    await db.insert(issueRelations).values(rows.map(row => ({ companyId: f.companyId, issueId: f.child.id,
+      relatedIssueId: row.id, type: "blocks" as const })));
+    const { calls, enqueueWakeup } = wakeRecorder();
+    const result = await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId, issueId: f.child.id });
+    expect(calls.map(call => call.input.payload.issueId)).toContain(rows[100]!.id);
+    expect(result.deferred).toBe(100);
+  });
+
+  it("wakes the dependent when the blocker's board action resolved as blocked (t05 shape)", async () => {
+    // t05: CHA-8 blocks CHA-5. Its board-owned action was resolved with outcome
+    // "blocked" six seconds after creation, as the issue moved to blocked for
+    // the board, so no open action remained to find.
+    const f = await fixture();
+    await db.update(issueRecoveryActions).set({ status: "resolved", outcome: "blocked", resolvedAt: new Date() })
+      .where(eq(issueRecoveryActions.id, f.action.id));
+    await db.update(issues).set({ parentId: null }).where(eq(issues.id, f.child.id));
+    await db.insert(issueRelations).values({ companyId: f.companyId, issueId: f.child.id, relatedIssueId: f.parent.id, type: "blocks" });
+    const { calls, enqueueWakeup } = wakeRecorder();
+    const service = recoveryService(db, { enqueueWakeup: enqueueWakeup as never });
+    // The per-issue blocked sweep visits the stalled blocker itself.
+    await service.reconcileResolvedDependencyWakeBackstop({ companyId: f.companyId, issueId: f.child.id });
+    await service.reconcileResolvedDependencyWakeBackstop({ companyId: f.companyId, issueId: f.child.id });
+    const stalled = calls.filter(call => call.input.reason === ISSUE_BLOCKER_STALLED_WAKE_REASON);
+    expect(stalled).toHaveLength(1);
+    expect(stalled[0]).toMatchObject({ agentId: f.parentAgent, input: { contextSnapshot: { blockerStall: {
+      stalledIssueId: f.child.id, relation: "blocker", recoveryAction: { id: f.action.id, status: "resolved" } } } } });
+
+    // Retry moves it out of blocked: not a stall any more, and no new wake.
+    await db.update(issues).set({ status: "todo" }).where(eq(issues.id, f.child.id));
+    await service.reconcileResolvedDependencyWakeBackstop({ companyId: f.companyId, issueId: f.child.id });
+    await service.reconcileActiveRecoveryActions({ companyId: f.companyId });
+    expect(calls.filter(call => call.input.reason === ISSUE_BLOCKER_STALLED_WAKE_REASON)).toHaveLength(1);
+  });
+
+  it("lists the waiting issue's stalled children and blockers for its page", async () => {
+    const f = await fixture();
+    const [blocker] = await db.insert(issues).values({ companyId: f.companyId, title: "Blocker", status: "blocked" }).returning();
+    await db.insert(issueRelations).values({ companyId: f.companyId, issueId: blocker.id, relatedIssueId: f.parent.id, type: "blocks" });
+    await db.insert(issueRecoveryActions).values({ companyId: f.companyId, sourceIssueId: blocker.id, kind: "run_recovery",
+      status: "resolved", outcome: "blocked", ownerType: "board", cause: "native_session_retry_exhausted",
+      fingerprint: "blocker", nextAction: "Retry", resolvedAt: new Date() });
+    const listed = await listStalledDependencies(db, { companyId: f.companyId, issueId: f.parent.id });
+    expect(listed.map(entry => [entry.stalledIssueId, entry.relation]).sort())
+      .toEqual([[blocker.id, "blocker"], [f.child.id, "child"]].sort());
+    await db.update(issues).set({ status: "todo" }).where(eq(issues.id, blocker.id));
+    expect((await listStalledDependencies(db, { companyId: f.companyId, issueId: f.parent.id })).map(entry => entry.stalledIssueId))
+      .toEqual([f.child.id]);
+  });
+
+  it("never wakes a waiter parked in the backlog", async () => {
+    const f = await fixture();
+    await db.update(issues).set({ status: "backlog" }).where(eq(issues.id, f.parent.id));
+    const { calls, enqueueWakeup } = wakeRecorder();
+    await recoveryService(db, { enqueueWakeup: enqueueWakeup as never }).reconcileActiveRecoveryActions({ companyId: f.companyId });
+    expect(calls).toEqual([]);
+  });
+
+  it("does not let a merged run swallow a second stall, and guards the waiter's state", async () => {
+    const f = await fixture();
+    const [second] = await db.insert(issues).values({ companyId: f.companyId, title: "Second child", status: "blocked",
+      parentId: f.parent.id, assigneeAgentId: f.childAgent }).returning();
+    await db.insert(issueRecoveryActions).values({ companyId: f.companyId, sourceIssueId: second.id, kind: "run_recovery",
+      status: "escalated", ownerType: "board", cause: "execution_recovery_budget_exhausted", fingerprint: "second", nextAction: "Retry" });
+    const { calls, enqueueWakeup } = wakeRecorder();
+    await recoveryService(db, { enqueueWakeup: enqueueWakeup as never }).reconcileActiveRecoveryActions({ companyId: f.companyId });
+    expect(calls).toHaveLength(2);
+    for (const call of calls) {
+      expect(call.input).toMatchObject({ allowRunCoalescing: false,
+        issueStateGuard: { statuses: expect.not.arrayContaining(["backlog", "done", "cancelled"]), assigneeAgentId: f.parentAgent } });
+    }
+  });
+
+  it("defers while the agent takes no wakes, and retries a refused wake once the refusal is old", async () => {
+    const f = await fixture();
+    await db.update(agents).set({ runtimeConfig: { heartbeat: { wakeOnDemand: false } } }).where(eq(agents.id, f.parentAgent));
+    const { calls, enqueueWakeup } = wakeRecorder();
+    const result = await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId });
+    expect(result).toMatchObject({ woken: 0, deferred: 1 });
+    expect(result.retryAt).toBeGreaterThan(Date.now() + 9 * 60_000);
+    expect(calls).toEqual([]);
+
+    // Wakes enabled again; an earlier refusal row exists for this stall.
+    await db.update(agents).set({ runtimeConfig: {} }).where(eq(agents.id, f.parentAgent));
+    const key = issueBlockerStalledWakeKey({ waiterIssueId: f.parent.id, stalledIssueId: f.child.id, recoveryActionId: f.action.id });
+    const [refused] = await db.insert(agentWakeupRequests).values({ companyId: f.companyId, agentId: f.parentAgent, source: "automation",
+      triggerDetail: "system", reason: "heartbeat.wakeOnDemand.disabled", payload: { issueId: f.parent.id }, idempotencyKey: key,
+      status: "skipped" }).returning();
+    const refusedPass = await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId });
+    expect(calls).toEqual([]); // a fresh refusal is not retried at once
+    expect(refusedPass.retryAt).toBe(refused.requestedAt.getTime() + 10 * 60_000);
+    await db.update(agentWakeupRequests).set({ requestedAt: new Date(Date.now() - 11 * 60_000) }).where(eq(agentWakeupRequests.id, refused.id));
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId });
+    expect(calls).toHaveLength(1);
+  });
+
+  it("does not wake again while a resource-wait retry carries the stall", async () => {
+    const f = await fixture();
+    const { calls, enqueueWakeup } = wakeRecorder();
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId });
+    expect(calls).toHaveLength(1);
+    // A workspace-busy deferral cancels the wake and schedules a keyless retry
+    // that keeps the stall context.
+    await db.update(agentWakeupRequests).set({ status: "cancelled", requestedAt: new Date(Date.now() - 11 * 60_000) })
+      .where(eq(agentWakeupRequests.companyId, f.companyId));
+    const [retry] = await db.insert(heartbeatRuns).values({ companyId: f.companyId, agentId: f.parentAgent,
+      invocationSource: "automation", status: "scheduled_retry", scheduledRetryAt: new Date(),
+      contextSnapshot: { ...calls[0]!.input.contextSnapshot, wakeReason: "workspace_busy_retry", retryOfRunId: randomUUID() } }).returning();
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId });
+    expect(calls).toHaveLength(1);
+    // A retry chain that was itself cancelled, or failed before the agent ran, no longer counts.
+    await db.update(heartbeatRuns).set({ status: "failed" }).where(eq(heartbeatRuns.id, retry.id));
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId });
+    expect(calls).toHaveLength(2);
+  });
+
+  it("reaches a waiter through its own sweep when the stalled blocker is unassigned", async () => {
+    const f = await fixture();
+    await db.update(issues).set({ parentId: null, assigneeAgentId: null }).where(eq(issues.id, f.child.id));
+    await db.insert(issueRelations).values({ companyId: f.companyId, issueId: f.child.id, relatedIssueId: f.parent.id, type: "blocks" });
+    const { calls, enqueueWakeup } = wakeRecorder();
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId, issueId: f.parent.id });
+    expect(calls.map(call => call.agentId)).toEqual([f.parentAgent]);
+  });
+
+  it("makes progress past the per-pass cap", async () => {
+    const f = await fixture();
+    const [second] = await db.insert(issues).values({ companyId: f.companyId, title: "Second child", status: "blocked",
+      parentId: f.parent.id, assigneeAgentId: f.childAgent }).returning();
+    await db.insert(issueRecoveryActions).values({ companyId: f.companyId, sourceIssueId: second.id, kind: "run_recovery",
+      status: "escalated", ownerType: "board", cause: "c", fingerprint: "second", nextAction: "Retry" });
+    const { calls, enqueueWakeup } = wakeRecorder();
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId, maxStalls: 1 });
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId, maxStalls: 1 });
+    expect(new Set(calls.map(call => call.input.contextSnapshot.blockerStall.stalledIssueId))).toEqual(new Set([f.child.id, second.id]));
+  });
+
+  it("delivers one wake when two sweeps race for the same stall", async () => {
+    const f = await fixture();
+    const { calls, enqueueWakeup } = wakeRecorder();
+    const results = await Promise.all([
+      wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId }),
+      wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId, issueId: f.child.id }),
+    ]);
+    const rows = await db.select().from(agentWakeupRequests).where(eq(agentWakeupRequests.reason, ISSUE_BLOCKER_STALLED_WAKE_REASON));
+    expect(rows).toHaveLength(1);
+    expect(results.reduce((total, result) => total + result.woken, 0)).toBe(1);
+    expect(calls.length).toBeGreaterThanOrEqual(1);
+  });
+
+  it("keeps a company with only a resolved-as-blocked stall in the recovery-action sweep", async () => {
+    const f = await fixture();
+    await db.update(issueRecoveryActions).set({ status: "resolved", outcome: "blocked", resolvedAt: new Date() })
+      .where(eq(issueRecoveryActions.id, f.action.id));
+    const selected = async () => (await db.selectDistinct({ companyId: issueRecoveryActions.companyId }).from(issueRecoveryActions)
+      .where(recoveryActionSweepCondition())).map(row => row.companyId);
+    expect(await selected()).toContain(f.companyId);
+    await db.update(issues).set({ status: "todo" }).where(eq(issues.id, f.child.id));
+    expect(await selected()).not.toContain(f.companyId);
+  });
+
+  it("withholds a private stalled issue's details from a waiter agent that cannot read it", async () => {
+    const f = await fixture();
+    await db.update(issues).set({ visibility: "private", title: "Secret acquisition" }).where(eq(issues.id, f.child.id));
+    const { calls, enqueueWakeup } = wakeRecorder();
+    await wakeWaitersOfStalledIssues(db, enqueueWakeup as never, { companyId: f.companyId });
+    expect(calls).toHaveLength(1);
+    const stall = calls[0]!.input.contextSnapshot.blockerStall;
+    expect(JSON.stringify(stall)).not.toContain("Secret acquisition");
+    expect(JSON.stringify(stall)).not.toContain("execution_recovery_budget_exhausted");
+    expect(stall).toMatchObject({ stalledIssueId: f.child.id, stalledIssueIdentifier: null });
+    const [activity] = await db.select().from(activityLog).where(eq(activityLog.action, "issue.blocker_stalled_wake"));
+    expect(activity.details).toMatchObject({ detailsWithheld: true, stalledIssueIdentifier: null });
+  });
+
+  it("ignores an action resolved any other way", async () => {
+    const f = await fixture();
+    await db.update(issueRecoveryActions).set({ status: "resolved", outcome: "restored", resolvedAt: new Date() })
+      .where(eq(issueRecoveryActions.id, f.action.id));
+    const { calls, enqueueWakeup } = wakeRecorder();
+    const service = recoveryService(db, { enqueueWakeup: enqueueWakeup as never });
+    await service.reconcileResolvedDependencyWakeBackstop({ companyId: f.companyId, issueId: f.child.id });
+    await service.reconcileActiveRecoveryActions({ companyId: f.companyId });
+    expect(calls.filter(call => call.input.reason === ISSUE_BLOCKER_STALLED_WAKE_REASON)).toEqual([]);
+  });
+
+  it("does not wake for an agent-owned action, a terminal or unassigned waiter, or a hidden waiter", async () => {
+    const agentOwned = await fixture({ ownerType: "agent", status: "active" });
+    const doneParent = await fixture();
+    await db.update(issues).set({ status: "done" }).where(eq(issues.id, doneParent.parent.id));
+    const unassigned = await fixture();
+    await db.update(issues).set({ assigneeAgentId: null }).where(eq(issues.id, unassigned.parent.id));
+    const hidden = await fixture();
+    await db.update(issues).set({ hiddenAt: new Date() }).where(eq(issues.id, hidden.parent.id));
+    const { calls, enqueueWakeup } = wakeRecorder();
+    const service = recoveryService(db, { enqueueWakeup: enqueueWakeup as never });
+    for (const f of [agentOwned, doneParent, unassigned, hidden]) await service.reconcileActiveRecoveryActions({ companyId: f.companyId });
+    expect(calls.filter(call => call.input.reason === ISSUE_BLOCKER_STALLED_WAKE_REASON)).toEqual([]);
+  });
+});
diff --git a/server/src/__tests__/issue-recovery-work-lifecycle.test.ts b/server/src/__tests__/issue-recovery-work-lifecycle.test.ts
index 52f465daa8e..50a8629fa25 100644
--- a/server/src/__tests__/issue-recovery-work-lifecycle.test.ts
+++ b/server/src/__tests__/issue-recovery-work-lifecycle.test.ts
@@ -123,6 +123,25 @@ describe("issue recovery obligation lifecycle", () => {
     expect(f.check.mock.calls.length).toBe(checked * 2); expect(f.load).toHaveBeenCalledTimes(loaded);
     expect(f.coordinator.nextWakeAt()).toBeNull();
   });
+  it("retries a recovery-action pass whose blocker stall wake failed to enqueue", async () => {
+    const f = fixture(); f.rows.actions.push({ id: "selected", companyId: "selected" });
+    f.recoveryActions.mockResolvedValueOnce({ blockerStallWakeFailures: 1 } as never);
+    await f.worker.ready;
+    expect(f.recoveryActions).toHaveBeenCalledTimes(1);
+    expect(f.coordinator.nextWakeAt()).toBe(1_030_000);
+    await vi.advanceTimersByTimeAsync(30_000);
+    expect(f.recoveryActions).toHaveBeenCalledTimes(2);
+    expect(f.coordinator.nextWakeAt()).toBeNull();
+  });
+  it("comes back for a stall held while its agent takes no wakes", async () => {
+    const f = fixture(); f.rows.actions.push({ id: "selected", companyId: "selected" });
+    f.recoveryActions.mockResolvedValueOnce({ blockerStallRetryAt: 1_600_000 } as never);
+    await f.worker.ready;
+    expect(f.coordinator.nextWakeAt()).toBe(1_600_000);
+    await vi.advanceTimersByTimeAsync(600_000);
+    expect(f.recoveryActions).toHaveBeenCalledTimes(2);
+    expect(f.coordinator.nextWakeAt()).toBeNull();
+  });
   it("keeps an incomplete watchdog subtree as concrete retry debt", async () => {
     const f = fixture(); f.rows.watchdogs.push({ id: "watchdog", companyId: "selected" }); f.state.incomplete = true;
     await f.worker.ready; expect(f.coordinator.nextWakeAt()).toBe(1_030_000);
diff --git a/server/src/modules/run-dispatch/adapters/postgres.ts b/server/src/modules/run-dispatch/adapters/postgres.ts
index 0dda710dadf..3a4806de488 100644
--- a/server/src/modules/run-dispatch/adapters/postgres.ts
+++ b/server/src/modules/run-dispatch/adapters/postgres.ts
@@ -51,6 +51,7 @@ import { legacyDispositionEpisode, legacyDispositionFingerprint } from "../../..
 import { appendHeartbeatRunEvent } from "../../../services/heartbeat-run-events.js";
 import { emitAgentTaskRun } from "../../../services/agent-task-run-telemetry.js";
 import { issueService } from "../../../services/issues.js";
+import { verifyBlockerStallWake } from "../../../services/recovery/blocker-stall-wakeups.js";
 import {
   issueTreeControlService,
   isVerifiedIssueTreeControlInteractionWake,
@@ -479,8 +480,16 @@ export function createPostgresRunDispatchAdapter(
 
     const dependencyReadiness = await issuesSvcForRead.listDependencyReadiness(input.companyId, [issueId]);
     const readiness = dependencyReadiness.get(issueId);
+    // A verified stall wake runs while its stalled dependency is unresolved,
+    // including after a resource wait replaced it with a scheduled retry.
+    const stallAdmitted = readiness && !readiness.isDependencyReady && input.contextSnapshot.blockerStall
+      ? await verifyBlockerStallWake(db, { companyId: input.companyId, issueId, contextSnapshot: input.contextSnapshot,
+          requestedByActorType: input.wakeupRequestId ? await db.select({ actor: agentWakeupRequests.requestedByActorType })
+            .from(agentWakeupRequests).where(and(eq(agentWakeupRequests.companyId, input.companyId),
+              eq(agentWakeupRequests.id, input.wakeupRequestId))).then(rows => rows[0]?.actor ?? null) : null })
+      : false;
     facts.dependenciesBlocked =
-      readiness && !readiness.isDependencyReady
+      readiness && !readiness.isDependencyReady && !stallAdmitted
         ? {
             unresolvedBlockerIssueIds: readiness.unresolvedBlockerIssueIds,
             unresolvedBlockerCount: readiness.unresolvedBlockerCount,
@@ -646,9 +655,13 @@ export function createPostgresRunDispatchAdapter(
     const retryReasonKind = classifyRetryReasonKind(retryReason);
     // Dependency edges can change after scheduled promotion without changing
     // the displayed status. Read them again under the queued/final issue lock.
-    const readiness = issue && retryReasonKind === "native_safe_replacement"
+    const replacementReadiness = issue && retryReasonKind === "native_safe_replacement"
       ? (await issueService(dbOrTx).listDependencyReadiness(input.companyId, [issueId])).get(issueId)
       : null;
+    const readiness = replacementReadiness && !replacementReadiness.isDependencyReady && context.blockerStall
+      && await verifyBlockerStallWake(dbOrTx as unknown as Db, { companyId: input.companyId, issueId,
+        contextSnapshot: context, requestedByActorType: null })
+      ? null : replacementReadiness;
     return {
       runId: input.runId,
       runAgentId: input.agentId,
diff --git a/server/src/modules/run-dispatch/domain/wake-context.ts b/server/src/modules/run-dispatch/domain/wake-context.ts
index 91545b4bdb3..645d10f78ae 100644
--- a/server/src/modules/run-dispatch/domain/wake-context.ts
+++ b/server/src/modules/run-dispatch/domain/wake-context.ts
@@ -168,6 +168,23 @@ export function allowsIssueInteractionWake(
   return Boolean(deriveCommentId(contextSnapshot));
 }
 
+/**
+ * Whether a wake may run while its issue still has unresolved blockers: a
+ * verified comment interaction, or a stalled child or blocker
+ * (`issue_blocker_stalled`, once per stall), which the assignee must be able
+ * to re-delegate, escalate or block on while that dependency is stuck. The
+ * caller verifies the stall against server state (`verifyBlockerStallWake`);
+ * the wake reason string alone never qualifies. Pause holds are separate and
+ * do not use this rule.
+ */
+export function allowsDependencyBlockedWake(
+  contextSnapshot: Record<string, unknown> | null | undefined,
+  interactionWakeReasons: ReadonlySet<string>,
+  verifiedBlockerStall: boolean,
+): boolean {
+  return allowsIssueInteractionWake(contextSnapshot, interactionWakeReasons) || verifiedBlockerStall;
+}
+
 export function isResolvedInteractionContinuationWakeContext(contextSnapshot: unknown): boolean {
   const context = parseObject(contextSnapshot);
   const interactionId = readNonEmptyString(context.interactionId);
diff --git a/server/src/modules/run-dispatch/index.ts b/server/src/modules/run-dispatch/index.ts
index 2cd18c72398..5f391cca374 100644
--- a/server/src/modules/run-dispatch/index.ts
+++ b/server/src/modules/run-dispatch/index.ts
@@ -30,6 +30,7 @@ export {
   extractWakeCommentIds,
   deriveCommentId,
   allowsIssueInteractionWake,
+  allowsDependencyBlockedWake,
   isResolvedInteractionContinuationWakeContext,
 } from "./domain/wake-context.js";
 export type {
diff --git a/server/src/routes/issues.ts b/server/src/routes/issues.ts
index 928d55caa0b..e3931c8e5bd 100644
--- a/server/src/routes/issues.ts
+++ b/server/src/routes/issues.ts
@@ -1,3 +1,4 @@
+import { listStalledDependencies } from "../services/recovery/blocker-stall-wakeups.js";
 import { confirmMcpAttachmentCleanup, recordMcpAttachmentCleanup, type McpAttachmentCleanup } from "../services/public-mcp/upload-cleanup.js";
 import { notifyDeferredExecutionWork } from "../services/deferred-execution-notifications.js";
 import { notifyNativeRecoveryNotices } from "../services/native-recovery-notice-notifications.js";
@@ -1445,6 +1446,7 @@ const ISSUE_WAKE_DIAGNOSTIC_KNOWN_REASONS = new Set([
   "chat_task_completed",
   "issue_assigned",
   "issue_blockers_resolved",
+  "issue_blocker_stalled",
   "issue_commented",
   "issue_comment_mentioned",
   "issue_dependencies_blocked",
@@ -9830,7 +9832,7 @@ export function issueRoutes(
       timing.time("work_products", () => workProductsSvc.listForIssue(issue.id)),
       timing.time("created_from", () => resolveVisibleIssueCreationSource(req, issue)),
     ]);
-    const [recoveryActionsByRelationIssue, revalidatedActiveRecoveryAction, mentionedProjects] = await Promise.all([
+    const [recoveryActionsByRelationIssue, revalidatedActiveRecoveryAction, mentionedProjects, stalledDependencies] = await Promise.all([
       timing.time("relation_recovery", () => relationRecoveryActionMap(recoveryActionsSvc, issue.companyId, relations)),
       timing.time("revalidate_recovery", () => revalidateActiveSourceRecoveryForRead({
         issue,
@@ -9841,6 +9843,14 @@ export function issueRoutes(
       timing.time("mentioned_projects", () => mentionedProjectIds.length > 0
         ? projectsSvc.listByIds(issue.companyId, mentionedProjectIds)
         : Promise.resolve([])),
+      // Children and blockers stalled on the board, shown on this page so the
+      // board can act without opening each one. Unreadable issues are omitted.
+      timing.time("stalled_dependencies", async () => {
+        const stalled = await listStalledDependencies(db, { companyId: issue.companyId, issueId: issue.id });
+        if (stalled.length === 0) return stalled;
+        const readable = await readableIssueEdgeIds(req, issue.companyId, stalled.map(entry => entry.stalledIssueId));
+        return stalled.filter(entry => readable.has(entry.stalledIssueId));
+      }),
     ]);
     const relationsWithRecoveryActions = withRecoveryActionsOnRelationSummaries(
       relations, recoveryActionsByRelationIssue,
@@ -9867,6 +9877,8 @@ export function issueRoutes(
       interruption: await taskInterruptionPresentation(db, issue),
       scheduledRetry,
       activeRecoveryAction: revalidatedActiveRecoveryAction,
+      // Always present, so a cleared stall replaces the cached list.
+      stalledDependencies,
       blockedBy: visibleRelations.blockedBy,
       blocks: visibleRelations.blocks,
       relatedWork: visibleReferenceSummary,
diff --git a/server/src/services/agent-conversations.ts b/server/src/services/agent-conversations.ts
index de7b9719b6c..e63bfe57f13 100644
--- a/server/src/services/agent-conversations.ts
+++ b/server/src/services/agent-conversations.ts
@@ -80,6 +80,7 @@ export function isConversationExecutionWake(
   return isConversation(issue) && (
     reason === "issue_blockers_resolved" ||
     reason === "issue_children_completed" ||
+    reason === "issue_blocker_stalled" ||
     reason === "issue_unblock_requested"
   );
 }
diff --git a/server/src/services/heartbeat/queue.ts b/server/src/services/heartbeat/queue.ts
index 5f3c2fe48d2..c17ae70b663 100644
--- a/server/src/services/heartbeat/queue.ts
+++ b/server/src/services/heartbeat/queue.ts
@@ -1,3 +1,4 @@
+import { verifyBlockerStallWake } from "../recovery/blocker-stall-wakeups.js";
 import { CONTEXT_COMPACTION_WAKE_REASON, ContextCompactionError, isContextCompactionRun, readContextCompactionRequest } from "../context-compaction.js";
 import { isProcessRunAdmissionClosed } from "./run-admission.js";
 import { deliveredQueuedCommentIds } from "../queued-comment-delivery.js";
@@ -172,7 +173,7 @@ import {
   WORKSPACE_WORKTREE_REQUIRES_PROJECT_REMEDIATION,
 } from "../execution-workspace-policy.js";
 import { readContinuationAttempt } from "../recovery/index.js";
-import { allowsIssueInteractionWake, wakeChatConversationsConflict } from "../../modules/run-dispatch/index.js";
+import { allowsDependencyBlockedWake, wakeChatConversationsConflict } from "../../modules/run-dispatch/index.js";
 import { withAgentStartLock } from "../agent-start-lock.js";
 import {
   evaluateAgentInvokability,
@@ -1021,11 +1022,20 @@ export function createHeartbeatQueue(db: Db, dependencies: HeartbeatQueueDepende
       );
       const readiness = dependencyReadiness.get(issueId);
       const unresolvedBlockerCount = readiness?.unresolvedBlockerCount ?? 0;
+      // The run's wake request records who asked for it.
+      const blockerStallVerified = unresolvedBlockerCount > 0 && await verifyBlockerStallWake(db, {
+        companyId: run.companyId, issueId, contextSnapshot: context,
+        requestedByActorType: run.wakeupRequestId
+          ? (await db.select({ actor: agentWakeupRequests.requestedByActorType }).from(agentWakeupRequests)
+            .where(eq(agentWakeupRequests.id, run.wakeupRequestId)).then(rows => rows[0]?.actor ?? null))
+          : null,
+      });
       if (
         unresolvedBlockerCount > 0 &&
-        !allowsIssueInteractionWake(
+        !allowsDependencyBlockedWake(
           context,
           ISSUE_TREE_CONTROL_INTERACTION_WAKE_REASONS,
+          blockerStallVerified,
         )
       ) {
         await cancelQueuedRunForBlockedDependencies(
@@ -3905,12 +3915,17 @@ export function createHeartbeatQueue(db: Db, dependencies: HeartbeatQueueDepende
           // Blocked descendants should stay idle until the final blocker resolves.
           // Human comment/mention wakes are the exception: they may run in a
           // bounded interaction mode so the assignee can answer or triage.
+          // A stalled child or blocker (issue_blocker_stalled, once per stall)
+          // is the other exception: the assignee must be able to re-delegate,
+          // escalate or block with a reason while that dependency is stuck.
           const blockedInteractionWake =
             dependencyReadiness &&
             !dependencyReadiness.isDependencyReady &&
-            allowsIssueInteractionWake(
+            allowsDependencyBlockedWake(
               enrichedContextSnapshot,
               ISSUE_TREE_CONTROL_INTERACTION_WAKE_REASONS,
+              await verifyBlockerStallWake(tx as unknown as Db, { companyId: issue.companyId, issueId: issue.id,
+                contextSnapshot: enrichedContextSnapshot, requestedByActorType: opts.requestedByActorType }),
             );
 
           if (blockedInteractionWake) {
diff --git a/server/src/services/heartbeat/run-preparation.ts b/server/src/services/heartbeat/run-preparation.ts
index ab1338b01da..6c6fe418cab 100644
--- a/server/src/services/heartbeat/run-preparation.ts
+++ b/server/src/services/heartbeat/run-preparation.ts
@@ -178,6 +178,7 @@ const ISSUE_RESPONSIBLE_USER_WAKE_REASONS = new Set([
   "issue_reopened_via_comment",
   "issue_blockers_resolved",
   "issue_children_completed",
+  "issue_blocker_stalled",
   "issue_status_changed",
   "issue_tree_restored",
   "issue_recovery_action_restored",
@@ -2752,6 +2753,7 @@ export async function buildPaperclipWakePayload(input: {
       : [],
     childIssueSummaryTruncated:
       input.contextSnapshot.childIssueSummaryTruncated === true,
+    blockerStall: input.contextSnapshot.blockerStall ?? null,
     dispositionRepair:
       buildReviewPathRecoveryDisposition(input.contextSnapshot) ??
       (input.contextSnapshot.legacyDispositionEpisode ? {
diff --git a/server/src/services/issue-read-timing.ts b/server/src/services/issue-read-timing.ts
index a3244e6f653..574196a85e8 100644
--- a/server/src/services/issue-read-timing.ts
+++ b/server/src/services/issue-read-timing.ts
@@ -6,7 +6,7 @@ type IssueReadPhase = "lookup" | "authorization" | "project_goal" | "ancestors"
   | "mentions" | "documents" | "relations" | "blockers" | "review"
   | "references" | "handoff" | "retry" | "recovery" | "cases" | "inbox"
   | "channel" | "workspace" | "work_products" | "created_from" | "execution_blocker"
-  | "relation_recovery" | "revalidate_recovery" | "mentioned_projects";
+  | "relation_recovery" | "revalidate_recovery" | "mentioned_projects" | "stalled_dependencies";
 
 export function createIssueReadTiming() {
   const start = performance.now();
diff --git a/server/src/services/recovery/blocker-stall-wakeups.ts b/server/src/services/recovery/blocker-stall-wakeups.ts
new file mode 100644
index 00000000000..9b178731e57
--- /dev/null
+++ b/server/src/services/recovery/blocker-stall-wakeups.ts
@@ -0,0 +1,332 @@
+/**
+ * Wake the issues waiting on a stalled one (`issue_blocker_stalled`).
+ *
+ * A parent hears about a child only when the child completes
+ * (`issue_children_completed`), and a dependent hears about a blocker only when
+ * every blocker is done (`issue_blockers_resolved`). When a child or blocker
+ * instead stalls on a recovery action that needs the board (for example a run
+ * whose retries are exhausted), nothing told the waiting agent: restart chaos
+ * w-20261108T181313-s9701 t05 left a parent silently blocked for 50+ minutes.
+ *
+ * A stall is the issue's latest recovery action needing the board, on an
+ * issue that is not done or cancelled:
+ * - open (`active` or `escalated`) and board-owned or escalated; or
+ * - board-owned and resolved with outcome `blocked` while the issue is still
+ *   `blocked`. Recovery resolves its action this way when it gives the issue
+ *   to the board (t05: created and resolved within six seconds), so an open
+ *   action alone misses the common case.
+ * Each open, agent-assigned waiter (the parent, and every issue the stalled
+ * one `blocks`) is woken once per stall. The idempotency key names the
+ * recovery action, so a repeated sweep never wakes twice, and a later stall
+ * (a new action after a Retry or another failure) wakes again.
+ */
+import { and, eq, gt, inArray, isNull, ne, notInArray, or, sql } from "drizzle-orm";
+import { agents, agentWakeupRequests, heartbeatRuns, issueRecoveryActions, issueRelations, issues, type Db } from "@paperclipai/db";
+import { ISSUE_BLOCKER_STALLED_WAKE_REASON, type IssueBlockerStalledWakeContext, type IssueBlockerStallRelation } from "@paperclipai/shared";
+import { logActivity } from "../activity-log.js";
+import { parseHeartbeatPolicy } from "../heartbeat/timer-policy.js";
+import { authorizationService } from "../authorization.js";
+
+const TERMINAL_ISSUE_STATUSES = ["done", "cancelled"];
+/** Waiters that may be woken: not finished, and not parked in the backlog by the board. */
+const WAKEABLE_WAITER_STATUSES = ["todo", "in_progress", "in_review", "blocked"];
+const MAX_STALLS_PER_PASS = 200;
+/** A wake row with one of these statuses was delivered or is still pending. */
+const DELIVERED_OR_PENDING_WAKE_STATUSES = ["queued", "deferred_issue_execution", "claimed", "coalesced", "completed"];
+/** Waiters of one stall read per page, and scanned per pass before a cursor resumes the rest. */
+const MAX_WAITERS_PER_STALL = 100;
+const MAX_WAITERS_SCANNED_PER_STALL = 500;
+const waiterCursors = new Map<string, string>();
+/** Runs that still hold, or already delivered, a stall prompt. A failed setup never did. */
+const DELIVERING_RUN_STATUSES = ["queued", "scheduled_retry", "running", "succeeded"];
+/** A refused wake (skipped, failed, cancelled) is retried, but not more often than this. */
+const REFUSED_WAKE_RETRY_MS = 10 * 60_000;
+const NON_INVOKABLE_AGENT_STATUSES = ["paused", "terminated", "pending_approval"];
+/** Company-wide passes resume after the last stall a capped pass reached, so every stall is visited. */
+const companyCursors = new Map<string, string>();
+
+export type BlockerStallWakeup = (agentId: string, input: {
+  source: "automation";
+  triggerDetail: "system";
+  reason: string;
+  payload: Record<string, unknown>;
+  idempotencyKey: string;
+  requestedByActorType: "system";
+  requestedByActorId: string;
+  contextSnapshot: Record<string, unknown>;
+  allowRunCoalescing: false;
+  issueStateGuard: { statuses: string[]; assigneeAgentId: string };
+}) => Promise<unknown>;
+
+export function issueBlockerStalledWakeKey(input: { waiterIssueId: string; stalledIssueId: string; recoveryActionId: string }) {
+  return [ISSUE_BLOCKER_STALLED_WAKE_REASON, input.waiterIssueId, input.stalledIssueId, input.recoveryActionId].join(":");
+}
+
+/**
+ * Recovery-action rows that keep a company in the recovery-action sweep: open
+ * actions, and a board action resolved as "blocked" on an issue that is still
+ * blocked (a stall with no open action left). Without the second case, an
+ * unassigned stalled blocker with a todo waiter is visited by no sweep.
+ */
+export function recoveryActionSweepCondition() {
+  return or(
+    inArray(issueRecoveryActions.status, ["active", "escalated"]),
+    and(eq(issueRecoveryActions.status, "resolved"), eq(issueRecoveryActions.outcome, "blocked"),
+      eq(issueRecoveryActions.ownerType, "board"),
+      sql`exists (select 1 from ${issues} stalled where stalled.id = ${issueRecoveryActions.sourceIssueId}
+        and stalled.company_id = ${issueRecoveryActions.companyId} and stalled.status = 'blocked')`),
+  )!;
+}
+
+type StallFilter = { companyId?: string | null; issueId?: string | null; issueIds?: readonly string[]; afterActionId?: string | null };
+
+/** The stalled issues matching `filter` and the recovery action each one waits on. */
+async function readStalls(db: Db, filter: StallFilter, limit = MAX_STALLS_PER_PASS) {
+  if (filter.issueIds && filter.issueIds.length === 0) return [];
+  return db.select({
+    actionId: issueRecoveryActions.id, companyId: issueRecoveryActions.companyId,
+    kind: issueRecoveryActions.kind, cause: issueRecoveryActions.cause, status: issueRecoveryActions.status,
+    ownerType: issueRecoveryActions.ownerType, nextAction: issueRecoveryActions.nextAction,
+    issueId: issues.id, identifier: issues.identifier, title: issues.title, issueStatus: issues.status, parentId: issues.parentId,
+    projectId: issues.projectId, assigneeAgentId: issues.assigneeAgentId, assigneeUserId: issues.assigneeUserId,
+  }).from(issueRecoveryActions)
+    .innerJoin(issues, and(eq(issues.id, issueRecoveryActions.sourceIssueId), eq(issues.companyId, issueRecoveryActions.companyId)))
+    .where(and(
+      filter.companyId ? eq(issueRecoveryActions.companyId, filter.companyId) : undefined,
+      filter.issueId ? eq(issueRecoveryActions.sourceIssueId, filter.issueId) : undefined,
+      filter.issueIds ? inArray(issueRecoveryActions.sourceIssueId, [...filter.issueIds]) : undefined,
+      filter.afterActionId ? gt(issueRecoveryActions.id, filter.afterActionId) : undefined,
+      notInArray(issues.status, TERMINAL_ISSUE_STATUSES),
+      or(
+        and(inArray(issueRecoveryActions.status, ["active", "escalated"]),
+          or(eq(issueRecoveryActions.ownerType, "board"), eq(issueRecoveryActions.status, "escalated"))),
+        and(eq(issueRecoveryActions.status, "resolved"), eq(issueRecoveryActions.outcome, "blocked"),
+          eq(issueRecoveryActions.ownerType, "board"), eq(issues.status, "blocked")),
+      ),
+      // Only the issue's latest action describes its current state.
+      sql`not exists (select 1 from ${issueRecoveryActions} newer
+        where newer.company_id = ${issueRecoveryActions.companyId}
+          and newer.source_issue_id = ${issueRecoveryActions.sourceIssueId}
+          and newer.created_at > ${issueRecoveryActions.createdAt})`,
+    ))
+    .orderBy(issueRecoveryActions.id)
+    .limit(limit);
+}
+
+type StallRow = Awaited<ReturnType<typeof readStalls>>[number];
+
+/** What a waiter's agent may see of a stalled issue it cannot read: that it is stalled, nothing more. */
+function redactedStallContext(stall: StallRow, relation: IssueBlockerStallRelation): IssueBlockerStalledWakeContext {
+  return {
+    stalledIssueId: stall.issueId, stalledIssueIdentifier: null, stalledIssueTitle: "A task you cannot read",
+    stalledIssueStatus: stall.issueStatus, relation,
+    recoveryAction: { id: stall.actionId, kind: "", cause: "", status: stall.status, ownerType: stall.ownerType,
+      nextAction: "Ask the board to act on it; its details are not available to you." },
+  };
+}
+
+function stallContext(stall: StallRow, relation: IssueBlockerStallRelation): IssueBlockerStalledWakeContext {
+  return {
+    stalledIssueId: stall.issueId,
+    stalledIssueIdentifier: stall.identifier,
+    stalledIssueTitle: stall.title,
+    stalledIssueStatus: stall.issueStatus,
+    relation,
+    recoveryAction: { id: stall.actionId, kind: stall.kind, cause: stall.cause, status: stall.status,
+      ownerType: stall.ownerType, nextAction: stall.nextAction },
+  };
+}
+
+/**
+ * The children and blockers of `issueId` that are stalled on the board, for
+ * the waiting issue's own page: the board sees them without opening each one.
+ */
+export async function listStalledDependencies(db: Db, input: { companyId: string; issueId: string }): Promise<IssueBlockerStalledWakeContext[]> {
+  const children = await db.select({ id: issues.id }).from(issues)
+    .where(and(eq(issues.companyId, input.companyId), eq(issues.parentId, input.issueId), isNull(issues.hiddenAt)));
+  const blockers = await db.select({ id: issueRelations.issueId }).from(issueRelations)
+    .where(and(eq(issueRelations.companyId, input.companyId), eq(issueRelations.type, "blocks"),
+      eq(issueRelations.relatedIssueId, input.issueId)));
+  const childIds = new Set(children.map(row => row.id));
+  const stalls = await readStalls(db, { companyId: input.companyId, issueIds: [...new Set([...childIds, ...blockers.map(row => row.id)])] }, 50);
+  return stalls.map(stall => stallContext(stall, childIds.has(stall.issueId) ? "child" : "blocker"));
+}
+
+export async function wakeWaitersOfStalledIssues(db: Db, enqueueWakeup: BlockerStallWakeup,
+  opts: { companyId?: string | null; issueId?: string | null; maxStalls?: number } = {}) {
+  const result = { stalls: 0, woken: 0, alreadyWoken: 0, deferred: 0, failed: 0, retryAt: null as number | null };
+  const retryAt = (at: number) => { result.retryAt = result.retryAt === null ? at : Math.min(result.retryAt, at); };
+  const maxStalls = opts.maxStalls ?? MAX_STALLS_PER_PASS;
+  let stalled: StallRow[];
+  if (opts.issueId) {
+    // The per-issue sweep checks the issue itself and its own children and
+    // blockers, so a stalled dependency that this sweep never visits (for
+    // example an unassigned blocker) still reaches the waiting issue.
+    const scope = opts.companyId ? [eq(issues.companyId, opts.companyId)] : [];
+    const children = await db.select({ id: issues.id }).from(issues).where(and(...scope, eq(issues.parentId, opts.issueId)));
+    const blockers = await db.select({ id: issueRelations.issueId }).from(issueRelations)
+      .where(and(eq(issueRelations.type, "blocks"), eq(issueRelations.relatedIssueId, opts.issueId),
+        opts.companyId ? eq(issueRelations.companyId, opts.companyId) : undefined));
+    stalled = await readStalls(db, { companyId: opts.companyId,
+      issueIds: [...new Set([opts.issueId, ...children.map(row => row.id), ...blockers.map(row => row.id)])] }, maxStalls);
+  } else {
+    const cursorKey = opts.companyId ?? "*";
+    stalled = await readStalls(db, { companyId: opts.companyId, afterActionId: companyCursors.get(cursorKey) ?? null }, maxStalls);
+    if (stalled.length >= maxStalls) companyCursors.set(cursorKey, stalled.at(-1)!.actionId);
+    else companyCursors.delete(cursorKey);
+  }
+  const access = authorizationService(db);
+  const agentCanRead = async (agentId: string, onBehalfOfUserId: string | null, stall: StallRow) => (await access.decide({
+    actor: { type: "agent", agentId, companyId: stall.companyId, onBehalfOfUserId },
+    action: "issue:read",
+    resource: { type: "issue", companyId: stall.companyId, issueId: stall.issueId, projectId: stall.projectId,
+      parentIssueId: stall.parentId, assigneeAgentId: stall.assigneeAgentId, assigneeUserId: stall.assigneeUserId,
+      status: stall.issueStatus },
+  })).allowed;
+  const agentAcceptsWakes = new Map<string, boolean>();
+  const acceptsWakes = async (agentId: string) => {
+    if (!agentAcceptsWakes.has(agentId)) {
+      const [agent] = await db.select().from(agents).where(eq(agents.id, agentId));
+      agentAcceptsWakes.set(agentId, Boolean(agent) && !NON_INVOKABLE_AGENT_STATUSES.includes(agent!.status)
+        && parseHeartbeatPolicy(agent!).wakeOnDemand);
+    }
+    return agentAcceptsWakes.get(agentId)!;
+  };
+
+  for (const stall of stalled) {
+    result.stalls += 1;
+    const cursorKey = `${stall.actionId}:${opts.issueId ?? "*"}`;
+    let after = waiterCursors.get(cursorKey) ?? null;
+    let scanned = 0;
+    for (;;) {
+      const waiters = await db.select({ id: issues.id, identifier: issues.identifier, assigneeAgentId: issues.assigneeAgentId,
+        status: issues.status, responsibleUserId: issues.responsibleUserId,
+        relation: sql<"child" | "blocker">`case when ${issues.id} = ${stall.parentId ?? null} then 'child' else 'blocker' end` })
+        .from(issues)
+        .where(and(
+          eq(issues.companyId, stall.companyId),
+          ne(issues.id, stall.issueId),
+          inArray(issues.status, WAKEABLE_WAITER_STATUSES),
+          isNull(issues.hiddenAt),
+          sql`${issues.assigneeAgentId} is not null`,
+          // A waiter's own sweep wakes only that waiter for its children and
+          // blockers; the stalled issue's own pass covers all of its waiters.
+          opts.issueId && stall.issueId !== opts.issueId ? eq(issues.id, opts.issueId) : undefined,
+          after ? gt(issues.id, after) : undefined,
+          sql`not exists (select 1 from ${agentWakeupRequests} w where w.company_id = ${stall.companyId}
+            and w.idempotency_key = 'issue_blocker_stalled:' || ${issues.id}::text || ${`:${stall.issueId}:${stall.actionId}`}
+            and w.status in (${sql.join(DELIVERED_OR_PENDING_WAKE_STATUSES.map(status => sql`${status}`), sql`, `)}))`,
+          or(
+            stall.parentId ? eq(issues.id, stall.parentId) : sql`false`,
+            sql`exists (select 1 from ${issueRelations} r where r.company_id = ${stall.companyId}
+              and r.type = 'blocks' and r.issue_id = ${stall.issueId} and r.related_issue_id = ${issues.id})`,
+          ),
+        )).orderBy(issues.id).limit(MAX_WAITERS_PER_STALL);
+      for (const waiter of waiters) {
+        const idempotencyKey = issueBlockerStalledWakeKey({ waiterIssueId: waiter.id, stalledIssueId: stall.issueId, recoveryActionId: stall.actionId });
+        // (company_id, payload->>'issueId') is indexed; the key narrows to this stall.
+        // A delivered or pending wake ends it. A refused one (wake-on-demand off,
+        // agent paused) is retried once the refusal is old, so re-enabling wakes
+        // still delivers the stall.
+        const [existing] = await db.select({ id: agentWakeupRequests.id, status: agentWakeupRequests.status,
+          requestedAt: agentWakeupRequests.requestedAt }).from(agentWakeupRequests)
+          .where(and(eq(agentWakeupRequests.companyId, stall.companyId),
+            sql`${agentWakeupRequests.payload}->>'issueId' = ${waiter.id}`,
+            eq(agentWakeupRequests.idempotencyKey, idempotencyKey),
+            or(inArray(agentWakeupRequests.status, DELIVERED_OR_PENDING_WAKE_STATUSES),
+              gt(agentWakeupRequests.requestedAt, new Date(Date.now() - REFUSED_WAKE_RETRY_MS))))).limit(1);
+        if (existing) {
+          result.alreadyWoken += 1;
+          // A recent refusal is retried once it is old; the worker comes back then.
+          if (!(DELIVERED_OR_PENDING_WAKE_STATUSES as readonly string[]).includes(existing.status))
+            retryAt(existing.requestedAt.getTime() + REFUSED_WAKE_RETRY_MS);
+          continue;
+        }
+        // A resource wait cancels the stall wake's run and schedules a retry
+        // with no idempotency key; the retry keeps the stall in its context.
+        const [carried] = await db.select({ id: heartbeatRuns.id }).from(heartbeatRuns)
+          .where(and(eq(heartbeatRuns.companyId, stall.companyId), eq(heartbeatRuns.agentId, waiter.assigneeAgentId!),
+            inArray(heartbeatRuns.status, DELIVERING_RUN_STATUSES),
+            sql`${heartbeatRuns.contextSnapshot}->>'issueId' = ${waiter.id}`,
+            sql`${heartbeatRuns.contextSnapshot}#>>'{blockerStall,stalledIssueId}' = ${stall.issueId}`,
+            sql`${heartbeatRuns.contextSnapshot}#>>'{blockerStall,recoveryAction,id}' = ${stall.actionId}`)).limit(1);
+        if (carried) { result.alreadyWoken += 1; continue; }
+        if (!(await acceptsWakes(waiter.assigneeAgentId!))) {
+          result.deferred += 1;
+          retryAt(Date.now() + REFUSED_WAKE_RETRY_MS);
+          continue;
+        }
+        // A private stalled issue's details never reach an agent that cannot read it.
+        const readable = await agentCanRead(waiter.assigneeAgentId!, waiter.responsibleUserId, stall);
+        const context = readable ? stallContext(stall, waiter.relation) : redactedStallContext(stall, waiter.relation);
+        try {
+          const wake = await enqueueWakeup(waiter.assigneeAgentId!, {
+            source: "automation", triggerDetail: "system", reason: ISSUE_BLOCKER_STALLED_WAKE_REASON,
+            payload: { issueId: waiter.id, ...context }, idempotencyKey,
+            requestedByActorType: "system", requestedByActorId: "issue-blocker-stall",
+            contextSnapshot: { issueId: waiter.id, taskId: waiter.id, wakeReason: ISSUE_BLOCKER_STALLED_WAKE_REASON,
+              source: "issue.blocker_stalled", blockerStall: context },
+            // One stall per run: coalescing would keep only the last blockerStall
+            // context while marking every merged stall as delivered.
+            allowRunCoalescing: false,
+            issueStateGuard: { statuses: WAKEABLE_WAITER_STATUSES, assigneeAgentId: waiter.assigneeAgentId! },
+          });
+          // Null is a normal deferral (for example wake-on-demand disabled): no
+          // wake row exists yet, so a later sweep tries again.
+          if (!wake) { result.deferred += 1; continue; }
+          await logActivity(db, {
+            companyId: stall.companyId, actorType: "system", actorId: "issue-blocker-stall",
+            action: "issue.blocker_stalled_wake", entityType: "issue", entityId: waiter.id,
+            agentId: waiter.assigneeAgentId, issueId: waiter.id,
+            details: { stalledIssueId: stall.issueId, stalledIssueIdentifier: readable ? stall.identifier : null,
+              relation: waiter.relation, recoveryActionId: stall.actionId,
+              recoveryActionKind: readable ? stall.kind : null, recoveryActionStatus: stall.status, detailsWithheld: !readable },
+          });
+          result.woken += 1;
+        } catch {
+          // The next sweep retries: no wake row with this key exists yet.
+          result.failed += 1;
+        }
+      }
+      scanned += waiters.length;
+      if (waiters.length < MAX_WAITERS_PER_STALL) { waiterCursors.delete(cursorKey); break; }
+      after = waiters.at(-1)!.id;
+      // Skipped waiters (agents taking no wakes) never pin later ones: the next pass resumes here.
+      if (scanned >= MAX_WAITERS_SCANNED_PER_STALL) { waiterCursors.set(cursorKey, after); retryAt(Date.now()); break; }
+    }
+  }
+  return result;
+}
+
+/**
+ * Whether a wake's `issue_blocker_stalled` context is real, so it may run past
+ * the waiter's unresolved blockers. The reason string alone is not trusted:
+ * the wake must come from the system, name a recovery action that is the
+ * stalled issue's current stall, and that issue must be a child or blocker of
+ * the waking issue. Anything else falls back to the ordinary dependency gate.
+ */
+export async function verifyBlockerStallWake(db: Db, input: {
+  companyId: string;
+  issueId: string;
+  contextSnapshot: Record<string, unknown> | null | undefined;
+  requestedByActorType: string | null | undefined;
+}): Promise<boolean> {
+  const context = input.contextSnapshot;
+  // A resource wait (AI connection busy, workspace busy) replaces the run with
+  // a server-created retry that keeps the context but not the wake reason or
+  // request. It carries the stall that admitted the original run.
+  const serverRetry = typeof context?.retryOfRunId === "string" && context.retryOfRunId.length > 0;
+  if (!context || (context.wakeReason !== ISSUE_BLOCKER_STALLED_WAKE_REASON && !serverRetry)) return false;
+  if (!serverRetry && input.requestedByActorType !== "system") return false;
+  const stall = context.blockerStall as Partial<IssueBlockerStalledWakeContext> | undefined;
+  const stalledIssueId = typeof stall?.stalledIssueId === "string" ? stall.stalledIssueId : null;
+  const actionId = typeof stall?.recoveryAction?.id === "string" ? stall.recoveryAction.id : null;
+  if (!stalledIssueId || !actionId || stalledIssueId === input.issueId) return false;
+  const [current] = await readStalls(db, { companyId: input.companyId, issueIds: [stalledIssueId] }, 1);
+  if (!current || current.actionId !== actionId) return false;
+  if (current.parentId === input.issueId) return true;
+  const [edge] = await db.select({ id: issueRelations.id }).from(issueRelations)
+    .where(and(eq(issueRelations.companyId, input.companyId), eq(issueRelations.type, "blocks"),
+      eq(issueRelations.issueId, stalledIssueId), eq(issueRelations.relatedIssueId, input.issueId))).limit(1);
+  return Boolean(edge);
+}
diff --git a/server/src/services/recovery/service.ts b/server/src/services/recovery/service.ts
index 16c9654b8c6..c96598f047e 100644
--- a/server/src/services/recovery/service.ts
+++ b/server/src/services/recovery/service.ts
@@ -1,3 +1,4 @@
+import { wakeWaitersOfStalledIssues, type BlockerStallWakeup } from "./blocker-stall-wakeups.js";
 import { notifyScheduledRetryDispatch } from "../run-dispatch-notifications.js";
 import { OWNER_UNPROVABLE_CAUSE } from "./owner-gone-attestation.js";
 import { promoteDeferredWorkIntents } from "../work-intent-outbox.js";
@@ -245,6 +246,7 @@ type RecoveryWakeupOptions = {
     statuses: string[];
     assigneeAgentId: string;
   };
+  allowRunCoalescing?: boolean;
 };
 
 type RecoveryWakeup = (
@@ -261,6 +263,7 @@ type ResolvedDependencyWakeBackstopOptions = {
   blockerIssueId?: string | null;
   issueId?: string;
   source?: ResolvedDependencyWakeBackstopSource;
+  onDeferredDeadline?: (at: number) => void;
 };
 
 const recoveryRunFields = {
@@ -3635,7 +3638,11 @@ export function recoveryService(
       // longer schedules another agent-owned wake for them.
       result.skipped += 1;
     }
-    return result;
+    // A child or blocker stalled on a board-owned action: tell whoever waits on it, once per stall.
+    const stalls = await wakeWaitersOfStalledIssues(db, deps.enqueueWakeup as BlockerStallWakeup, { companyId: opts?.companyId });
+    // A failed delivery is reported so the recovery worker retries this pass.
+    return { ...result, blockerStallWakes: stalls.woken, blockerStallWakeFailures: stalls.failed,
+      blockerStallRetryAt: stalls.retryAt };
   }
 
   async function escalateDispositionRepair(input: {
@@ -6076,6 +6083,16 @@ export function recoveryService(
       );
     }
 
+    // A stalled child or blocker: tell whoever waits on it, once per stall
+    // (blocker-stall-wakeups.ts). This sweep visits each blocked issue, which
+    // covers a board action already resolved as "blocked".
+    if (!opts?.runId && !opts?.blockerIssueId) {
+      const stalls = await wakeWaitersOfStalledIssues(db, deps.enqueueWakeup as BlockerStallWakeup,
+        { companyId: opts?.companyId ?? null, issueId: opts?.issueId ?? null });
+      // Counted with the dependency wakes, so the worker retries a failed one.
+      result.enqueueFailed += stalls.failed;
+      if (stalls.retryAt !== null) opts?.onDeferredDeadline?.(stalls.retryAt);
+    }
     return result;
   }
 
diff --git a/server/src/services/recovery/work.ts b/server/src/services/recovery/work.ts
index e039b13757c..dec58947ca1 100644
--- a/server/src/services/recovery/work.ts
+++ b/server/src/services/recovery/work.ts
@@ -5,6 +5,7 @@ import type { createDeliveryWorkCoordinator } from "../delivery-work-coordinator
 import { DELIVERY_QUEUES, type DeliveryQueue } from "../delivery-work-notifications.js";
 import type { IssueRecoveryScope } from "../issue-recovery-notifications.js";
 import { registerScopedDeadlineWork } from "../scoped-deadline-work.js";
+import { recoveryActionSweepCondition } from "./blocker-stall-wakeups.js";
 
 type Entry = { id: string; companyId: string; dueAt: number };
 type Scope = { companyId: string; issueId: string; onDeferredDeadline: (at: number) => void };
@@ -16,7 +17,7 @@ export function registerIssueRecoveryWork(
   owner: {
     stranded(scope: Scope): Promise<unknown>;
     orphanBlockers(scope: { companyId: string }): Promise<unknown>;
-    recoveryActions(scope: { companyId: string }): Promise<unknown>;
+    recoveryActions(scope: { companyId: string }): Promise<{ blockerStallWakeFailures?: number; blockerStallRetryAt?: number | null } | unknown>;
     dependencies(scope: Scope): Promise<{ enqueueFailed: number }>;
     locks(scope: Scope): Promise<unknown>;
     watchdogs(scope: { companyId: string; watchdogId: string; onDeferredDeadline: (at: number) => void }): Promise<{ incomplete: number }>;
@@ -59,7 +60,7 @@ export function registerIssueRecoveryWork(
       },
     }, canRun);
   }
-  function registerCompany(queue: DeliveryQueue, kind: "blockers" | "actions", check: (scope: { companyId: string }) => Promise<unknown>) {
+  function registerCompany(queue: DeliveryQueue, kind: "blockers" | "actions", check: (scope: { companyId: string }) => Promise<number | null | void>) {
     const cursors = new Map<string, string>();
     let enabled = false;
     return registerScopedDeadlineWork<Entry, IssueRecoveryScope>(coordinator, {
@@ -74,7 +75,7 @@ export function registerIssueRecoveryWork(
         const cursor = cursors.get(key);
         const rows = kind === "actions"
           ? await db.selectDistinct({ id: issueRecoveryActions.companyId, companyId: issueRecoveryActions.companyId })
-            .from(issueRecoveryActions).where(and(inArray(issueRecoveryActions.status, ["active", "escalated"]),
+            .from(issueRecoveryActions).where(and(recoveryActionSweepCondition(),
               scope ? eq(issueRecoveryActions.companyId, scope.companyId) : undefined,
               cursor ? gt(issueRecoveryActions.companyId, cursor) : undefined))
             .orderBy(asc(issueRecoveryActions.companyId)).limit(PAGE_SIZE)
@@ -92,12 +93,25 @@ export function registerIssueRecoveryWork(
         if (complete) cursors.delete(key); else cursors.set(key, rows.at(-1)!.id);
         return { rows: rows.map(row => ({ ...row, dueAt: Date.now() })), complete };
       },
-      check: async entry => { if (enabled) await check({ companyId: entry.companyId }); return null; },
+      check: async entry => {
+        if (!enabled) return null;
+        const next = await check({ companyId: entry.companyId });
+        return typeof next === "number" ? { ...entry, dueAt: next } : null;
+      },
     }, canRun);
   }
   const assignments = register(DELIVERY_QUEUES.strandedAssignments, ["todo", "in_progress", "in_review"], owner.stranded);
-  const orphanBlockers = registerCompany(DELIVERY_QUEUES.orphanBlockers, "blockers", owner.orphanBlockers);
-  const recoveryActions = registerCompany(DELIVERY_QUEUES.activeRecoveryActions, "actions", owner.recoveryActions);
+  const orphanBlockers = registerCompany(DELIVERY_QUEUES.orphanBlockers, "blockers", async scope => { await owner.orphanBlockers(scope); });
+  const recoveryActions = registerCompany(DELIVERY_QUEUES.activeRecoveryActions, "actions", async scope => {
+    const result = await owner.recoveryActions(scope);
+    // A stall wake that failed to enqueue must be retried, not dropped with the entry.
+    const failures = result && typeof result === "object" && "blockerStallWakeFailures" in result
+      ? Number(result.blockerStallWakeFailures) : 0;
+    if (failures > 0) throw new Error("Blocker stall wake remains undelivered");
+    // A stall held back because the agent takes no wakes is checked again later.
+    const retryAt = result && typeof result === "object" && "blockerStallRetryAt" in result ? result.blockerStallRetryAt : null;
+    return typeof retryAt === "number" ? retryAt : null;
+  });
   const dependencies = register(DELIVERY_QUEUES.resolvedDependencies, ["blocked"], async scope => {
     const result = await owner.dependencies(scope);
     if (result.enqueueFailed > 0) throw new Error("Resolved dependency wake remains undelivered");
diff --git a/ui/src/components/IssueChatThread.tsx b/ui/src/components/IssueChatThread.tsx
index 274e7c3fea0..13a1d44a56d 100644
--- a/ui/src/components/IssueChatThread.tsx
+++ b/ui/src/components/IssueChatThread.tsx
@@ -48,6 +48,7 @@ import type {
   IssueAttachment,
   IssueDocumentSummary,
   IssueBlockerAttention,
+  IssueBlockerStalledWakeContext,
   IssueRecoveryAction,
   IssueQueuedCommentQueue,
   IssueRelationIssueSummary,
@@ -267,6 +268,7 @@ import {
   X,
 } from "lucide-react";
 import { IssueBlockedNotice } from "./IssueBlockedNotice";
+import { StalledDependencyNotice } from "./StalledDependencyNotice";
 import { IssueAssignedBacklogNotice } from "./IssueAssignedBacklogNotice";
 import {
   IssueRecoveryActionCard,
@@ -585,6 +587,8 @@ interface IssueChatThreadProps {
   /** Company-wide set of issue ids with a live (queued/running) run. */
   liveIssueIds?: ReadonlySet<string>;
   blockerAttention?: IssueBlockerAttention | null;
+  /** Children and blockers stalled on the board (`stalledDependencies` on the issue). */
+  stalledDependencies?: IssueBlockerStalledWakeContext[];
   successfulRunHandoff?: SuccessfulRunHandoffState | null;
   scheduledRetry?: IssueScheduledRetry | null;
   recoveryAction?: IssueRecoveryAction | null;
@@ -5874,6 +5878,7 @@ export function IssueChatThread({
   blockedBy = [],
   liveIssueIds,
   blockerAttention = null,
+  stalledDependencies,
   successfulRunHandoff = null,
   scheduledRetry = null,
   recoveryAction = null,
@@ -6848,6 +6853,7 @@ export function IssueChatThread({
                           : null
                       }
                     />
+                    <StalledDependencyNotice stalled={stalledDependencies} />
                     <IssueAssigneePausedNotice
                       agent={assignedAgent}
                       issueStatus={issueStatus}
diff --git a/ui/src/components/StalledDependencyNotice.test.tsx b/ui/src/components/StalledDependencyNotice.test.tsx
new file mode 100644
index 00000000000..791098a5c13
--- /dev/null
+++ b/ui/src/components/StalledDependencyNotice.test.tsx
@@ -0,0 +1,140 @@
+// @vitest-environment jsdom
+
+import { createRoot } from "react-dom/client";
+import { act } from "react";
+import type { AnchorHTMLAttributes } from "react";
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import type { IssueBlockerStalledWakeContext } from "@paperclipai/shared";
+import { StalledDependencyNotice } from "./StalledDependencyNotice";
+import { ApiError } from "../api/client";
+
+const getIssue = vi.hoisted(() => vi.fn());
+const retryTask = vi.hoisted(() => vi.fn());
+
+vi.mock("@/lib/router", () => ({
+  Link: ({ children, to, ...props }: AnchorHTMLAttributes<HTMLAnchorElement> & { to: string }) => (
+    <a href={to} {...props}>{children}</a>
+  ),
+}));
+vi.mock("../api/issues", () => ({ issuesApi: { get: getIssue, retryTask } }));
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+(globalThis as any).IS_REACT_ACT_ENVIRONMENT = true;
+
+const stall = (overrides: Partial<IssueBlockerStalledWakeContext> = {}): IssueBlockerStalledWakeContext => ({
+  stalledIssueId: "child-1",
+  stalledIssueIdentifier: "CHA-8",
+  stalledIssueTitle: "Ship the migration",
+  stalledIssueStatus: "blocked",
+  relation: "child",
+  recoveryAction: { id: "action-1", kind: "active_run_watchdog", cause: "native_session_retry_exhausted",
+    status: "resolved", ownerType: "board", nextAction: "Automatic recovery stopped. Recorded work is preserved." },
+  ...overrides,
+});
+
+let root: ReturnType<typeof createRoot> | null = null;
+let container: HTMLDivElement | null = null;
+afterEach(() => {
+  act(() => root?.unmount());
+  container?.remove();
+  root = null; container = null;
+  vi.clearAllMocks();
+});
+
+async function render(stalled: IssueBlockerStalledWakeContext[] | undefined) {
+  container = document.createElement("div");
+  document.body.appendChild(container);
+  root = createRoot(container);
+  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+  await act(async () => {
+    root!.render(<QueryClientProvider client={client}><StalledDependencyNotice stalled={stalled} /></QueryClientProvider>);
+  });
+  await act(async () => { await Promise.resolve(); });
+  return container;
+}
+
+async function waitFor<T>(read: () => T | null): Promise<T | null> {
+  for (let attempt = 0; attempt < 50; attempt += 1) {
+    const value = read();
+    if (value) return value;
+    await act(async () => { await new Promise(resolve => setTimeout(resolve, 10)); });
+  }
+  return read();
+}
+
+describe("StalledDependencyNotice", () => {
+  it("renders nothing without stalled dependencies", async () => {
+    const node = await render([]);
+    expect(node.querySelector("[data-testid='stalled-dependency-notice']")).toBeNull();
+    expect(getIssue).not.toHaveBeenCalled();
+  });
+
+  it("names the stalled child, its board action and a link, and offers the child's own Retry", async () => {
+    getIssue.mockResolvedValue({ id: "child-1", identifier: "CHA-8", status: "blocked", interruption: { canRetry: true, observedRunId: "run-1" } });
+    retryTask.mockResolvedValue({ accepted: true, presentation: null });
+    const node = await render([stall()]);
+    const notice = node.querySelector("[data-testid='stalled-dependency-notice']")!;
+    expect(notice.textContent).toContain("A dependency needs the board");
+    expect(notice.textContent).toContain("CHA-8");
+    expect(notice.textContent).toContain("Ship the migration");
+    expect(notice.textContent).toContain("Automatic recovery stopped");
+    expect(notice.querySelector("a")?.getAttribute("href")).toContain("CHA-8");
+    const button = await waitFor(() => notice.querySelector<HTMLButtonElement>("button[aria-label='Retry CHA-8']"));
+    expect(button).not.toBeNull();
+    await act(async () => { button!.click(); });
+    expect(retryTask).toHaveBeenCalledWith("child-1", expect.objectContaining({ observedRunId: "run-1" }));
+  });
+
+  it("explains a refused Retry and lets the board try again", async () => {
+    getIssue.mockResolvedValue({ id: "child-1", identifier: "CHA-8", status: "blocked", interruption: { canRetry: true, observedRunId: "run-1" } });
+    retryTask.mockRejectedValue(new ApiError("Retry is not allowed while the run is still stopping", 409, {}));
+    const node = await render([stall()]);
+    const button = await waitFor(() => node.querySelector<HTMLButtonElement>("button[aria-label='Retry CHA-8']"));
+    await act(async () => { button!.click(); });
+    const alert = await waitFor(() => node.querySelector("[role='alert']"));
+    expect(alert?.textContent).toBeTruthy();
+    expect(node.querySelector<HTMLButtonElement>("button[aria-label='Retry CHA-8']")?.disabled).toBe(false);
+  });
+
+  it("shows a lost response as taking longer, with Retry still available", async () => {
+    getIssue.mockResolvedValue({ id: "child-1", identifier: "CHA-8", status: "blocked", interruption: { canRetry: true, observedRunId: "run-1" } });
+    retryTask.mockRejectedValue(new Error("network down"));
+    const node = await render([stall()]);
+    const button = await waitFor(() => node.querySelector<HTMLButtonElement>("button[aria-label='Retry CHA-8']"));
+    await act(async () => { button!.click(); });
+    const status = await waitFor(() => [...node.querySelectorAll("[role='status']")].find(element => element.textContent?.includes("Taking longer")) ?? null);
+    expect(status).toBeTruthy();
+    expect(node.querySelector<HTMLButtonElement>("button[aria-label='Retry CHA-8']")?.disabled).toBe(false);
+  });
+
+  it("says when the child's state cannot be read and offers a reload", async () => {
+    getIssue.mockRejectedValueOnce(new Error("offline")).mockResolvedValue({ id: "child-1", identifier: "CHA-8", status: "blocked",
+      interruption: { canRetry: true, observedRunId: "run-1" } });
+    const node = await render([stall()]);
+    const alert = await waitFor(() => node.querySelector("[role='alert']"));
+    expect(alert?.textContent).toContain("Could not load this task's state");
+    const reload = [...node.querySelectorAll("button")].find(button => button.textContent === "Reload")!;
+    await act(async () => { reload.click(); });
+    expect(await waitFor(() => node.querySelector("button[aria-label='Retry CHA-8']"))).not.toBeNull();
+  });
+
+  it("drops a stall once the child's refreshed state has moved on", async () => {
+    getIssue.mockResolvedValueOnce({ id: "child-1", identifier: "CHA-8", status: "blocked", interruption: { canRetry: true, observedRunId: "run-1" } })
+      .mockResolvedValue({ id: "child-1", identifier: "CHA-8", status: "in_progress", interruption: { canRetry: false } });
+    retryTask.mockResolvedValue({ accepted: true, presentation: { canRetry: false } });
+    const node = await render([stall()]);
+    const button = await waitFor(() => node.querySelector<HTMLButtonElement>("button[aria-label='Retry CHA-8']"));
+    await act(async () => { button!.click(); });
+    expect(await waitFor(() => node.querySelector("[data-testid='stalled-dependency-notice']") ? null : true)).toBe(true);
+  });
+
+  it("omits Retry when the child's task state does not offer it", async () => {
+    getIssue.mockResolvedValue({ id: "child-1", identifier: "CHA-8", status: "blocked", interruption: { canRetry: false } });
+    const node = await render([stall({ relation: "blocker" })]);
+    await waitFor(() => (getIssue.mock.calls.length > 0 ? true : null));
+    await act(async () => { await new Promise(resolve => setTimeout(resolve, 20)); });
+    expect(node.textContent).toContain("Blocker");
+    expect(node.querySelector("button")).toBeNull();
+  });
+});
diff --git a/ui/src/components/StalledDependencyNotice.tsx b/ui/src/components/StalledDependencyNotice.tsx
new file mode 100644
index 00000000000..26ee0484c65
--- /dev/null
+++ b/ui/src/components/StalledDependencyNotice.tsx
@@ -0,0 +1,107 @@
+import type { Issue, IssueBlockerStalledWakeContext } from "@paperclipai/shared";
+import { useQueries } from "@tanstack/react-query";
+import { AlertTriangle, RotateCcw } from "lucide-react";
+import { Link } from "@/lib/router";
+import { Button } from "@/components/ui/button";
+import { issuesApi } from "../api/issues";
+import { queryKeys } from "../lib/queryKeys";
+import { createIssueDetailPath } from "../lib/issueDetailBreadcrumb";
+import { useTaskRetry } from "../hooks/useTaskRetry";
+import { describeError } from "../api/errors";
+
+/**
+ * Children and blockers of this task that stopped on a recovery action that
+ * needs the board (for example, retries exhausted). The task's agent is woken
+ * once per stall (`issue_blocker_stalled`); this lets the board see and act on
+ * each one from here, with the child's own Retry, without opening it.
+ */
+export function StalledDependencyNotice({ stalled }: { stalled: IssueBlockerStalledWakeContext[] | null | undefined }) {
+  // Most tasks have none: render nothing and read nothing.
+  if (!stalled || stalled.length === 0) return null;
+  return <StalledDependencyList entries={stalled} />;
+}
+
+function StalledDependencyList({ entries }: { entries: IssueBlockerStalledWakeContext[] }) {
+  // The child's own task state decides whether Retry is offered, as on its page.
+  const children = useQueries({
+    queries: entries.map(entry => {
+      const ref = entry.stalledIssueIdentifier ?? entry.stalledIssueId;
+      return { queryKey: queryKeys.issues.detail(ref), queryFn: () => issuesApi.get(ref) };
+    }),
+  });
+  // The waiter's saved list refreshes only with the waiter. Once a child's own
+  // refreshed state has moved on (its Retry started it, or it was unblocked),
+  // drop it here rather than show a cleared stall.
+  const rows = entries.map((entry, index) => ({ entry, child: children[index] }))
+    .filter(({ entry, child }) => !child?.data || child.data.status === entry.stalledIssueStatus);
+  if (rows.length === 0) return null;
+  return (
+    <div
+      data-testid="stalled-dependency-notice"
+      role="status"
+      className="rounded-md border border-amber-300/70 bg-amber-50/80 px-3 py-2 text-sm text-amber-950 dark:border-amber-500/40 dark:bg-amber-500/10 dark:text-amber-100"
+    >
+      <div className="flex items-center gap-1.5 font-medium">
+        <AlertTriangle className="h-3.5 w-3.5 shrink-0" aria-hidden />
+        {rows.length === 1 ? "A dependency needs the board" : `${rows.length} dependencies need the board`}
+      </div>
+      <ul className="mt-1.5 space-y-1.5">
+        {rows.map(({ entry, child }) => <StalledDependencyRow key={entry.recoveryAction.id} entry={entry}
+          child={child?.data} readError={child?.error ?? null} isFetching={child?.isFetching ?? false}
+          refetch={() => void child?.refetch()} />)}
+      </ul>
+    </div>
+  );
+}
+
+function StalledDependencyRow({ entry, child, readError, isFetching, refetch }: {
+  entry: IssueBlockerStalledWakeContext; child: Issue | undefined; readError: Error | null; isFetching: boolean; refetch: () => void;
+}) {
+  const ref = entry.stalledIssueIdentifier ?? entry.stalledIssueId;
+  const retry = useTaskRetry(child);
+  const canRetry = child?.interruption?.canRetry === true;
+  // Same states as the task's own Retry (ExecutionBlockerNotice): a refused
+  // request explains why, and a lost response can be retried.
+  const failed = Boolean(retry.error) && !retry.optimistic && !retry.takingLonger;
+  return (
+    <li data-testid="stalled-dependency-row" className="flex flex-wrap items-center gap-x-2 gap-y-1">
+      <span className="text-xs text-amber-800 dark:text-amber-200">
+        {entry.relation === "child" ? "Child" : "Blocker"}
+      </span>
+      <Link to={createIssueDetailPath(ref)} className="font-mono text-xs underline-offset-2 hover:underline">
+        {entry.stalledIssueIdentifier ?? "Task"}
+      </Link>
+      <span className="min-w-0 flex-1 truncate">{entry.stalledIssueTitle}</span>
+      {entry.recoveryAction.nextAction ? (
+        <span className="basis-full text-xs text-amber-800 dark:text-amber-200">{entry.recoveryAction.nextAction}</span>
+      ) : null}
+      {readError && !child ? (
+        <span role="alert" className="flex basis-full items-center gap-2 text-xs text-destructive">
+          Could not load this task's state: {describeError(readError).body}
+          <Button size="sm" variant="outline" className="h-6 px-2" disabled={isFetching} onClick={refetch}>
+            Reload
+          </Button>
+        </span>
+      ) : null}
+      {failed ? (
+        <span role="alert" className="basis-full text-xs text-destructive">{describeError(retry.error).body}</span>
+      ) : null}
+      {retry.takingLonger ? (
+        <span role="status" className="basis-full text-xs text-muted-foreground">Taking longer than usual…</span>
+      ) : null}
+      {canRetry || failed || retry.takingLonger ? (
+        <Button
+          size="sm"
+          variant="outline"
+          disabled={retry.optimistic && !retry.takingLonger}
+          onClick={retry.retry}
+          aria-label={`Retry ${entry.stalledIssueIdentifier ?? "task"}`}
+          className="h-7 gap-1 border-amber-300/80 bg-background/80 text-amber-950 shadow-none hover:bg-amber-100 dark:border-amber-500/50 dark:bg-background/40 dark:text-amber-100 dark:hover:bg-amber-500/15"
+        >
+          <RotateCcw className="h-3 w-3" aria-hidden />
+          {retry.optimistic && !retry.takingLonger ? "Retrying…" : "Retry"}
+        </Button>
+      ) : null}
+    </li>
+  );
+}
diff --git a/ui/src/pages/IssueDetail.tsx b/ui/src/pages/IssueDetail.tsx
index cb01c98e642..d7161c31b98 100644
--- a/ui/src/pages/IssueDetail.tsx
+++ b/ui/src/pages/IssueDetail.tsx
@@ -1207,6 +1207,7 @@ type IssueDetailChatTabProps = {
   blockedBy: Issue["blockedBy"];
   liveIssueIds: ReadonlySet<string>;
   blockerAttention: Issue["blockerAttention"] | null;
+  stalledDependencies?: Issue["stalledDependencies"];
   successfulRunHandoff: Issue["successfulRunHandoff"] | null;
   scheduledRetry: Issue["scheduledRetry"] | null;
   recoveryAction: Issue["activeRecoveryAction"];
@@ -1373,6 +1374,7 @@ const IssueDetailChatTab = memo(function IssueDetailChatTab({
   blockedBy,
   liveIssueIds,
   blockerAttention,
+  stalledDependencies,
   successfulRunHandoff,
   scheduledRetry,
   recoveryAction,
@@ -2688,6 +2690,7 @@ const IssueDetailChatTab = memo(function IssueDetailChatTab({
             blockedBy={blockedBy ?? []}
             liveIssueIds={liveIssueIds}
             blockerAttention={blockerAttention}
+            stalledDependencies={stalledDependencies}
             successfulRunHandoff={successfulRunHandoff}
             scheduledRetry={scheduledRetry}
             recoveryAction={isPreviousServerStopCause(recoveryAction?.cause) ? null : recoveryAction ?? null}
@@ -8562,6 +8565,7 @@ export function TaskDetailSurface({ conversation, tasksTab }: { tasksTab?: TaskS
                   blockedBy={issue.blockedBy ?? []}
                   liveIssueIds={liveIssueIds}
                   blockerAttention={issue.blockerAttention ?? null}
+                  stalledDependencies={issue.stalledDependencies}
                   successfulRunHandoff={issue.successfulRunHandoff ?? null}
                   scheduledRetry={issue.scheduledRetry ?? null}
                   recoveryAction={issue.interruption?.responsibility === "system" || isPreviousServerStopCause(issue.activeRecoveryAction?.cause) ? null : issue.activeRecoveryAction ?? null}