## Thinking Path
> - Paperclip is the open source app people use to manage AI agents for
work
> - The productivity-recovery subsystem watches for "stranded" assigned
issues — claims whose live run disappeared — and repairs, resumes, or
visibly blocks them
> - When an executor decomposes an umbrella issue into sub-tasks, it
parks its own continuation as "waiting on review/approval" (error code
`issue_continuation_waiting_on_review`) — a deliberate pause, not a lost
run
> - Recovery's staleness gate mistook that deliberate park for a
disappeared run: it retried once, then escalated the issue to `blocked`
with a recovery action and an operator-facing failure notice — even
though nothing had failed and there was nothing for a human to do
> - The user is left staring at an inscrutable, over-technical
"stranded" error on a task they did nothing wrong with, with no idea
what action to take
> - This pull request teaches recovery to recognize a review-parked
continuation and, when the issue has a real waiting target (open
sub-tasks or unresolved blockers), convert it into a first-class
dependency wait: `blocked`-by-children, original assignee kept, plus a
plain-language comment saying it will resume automatically
> - The benefit is that post-decomposition umbrellas sit on a real
waiting path and self-resume through the normal blockers-resolved flow,
while genuine strands (no waiting target) still escalate exactly as
before
## Linked Issues or Issue Description
Refs #6503
## What Changed
- `server/src/services/recovery/service.ts`: add
`resolveContinuationWaitingOnReview`. When a continuation was cancelled
with `issue_continuation_waiting_on_review` and the issue has a real
waiting target — open (non-terminal) sub-tasks or existing unresolved
blockers — recovery sets the issue `blocked` by those issues, keeps the
original assignee, posts a plain-language `system` comment, and logs the
activity. Wired into `reconcileStrandedAssignedIssues` ahead of the
escalation path, with a new `waitingOnReviewResolved` counter on the
result.
- With no waiting target, the code falls through to the existing
escalation, preserving genuine stranded-run detection.
- `server/src/__tests__/heartbeat-process-recovery.test.ts`: two new
tests — (1) a review-parked continuation converts into a dependency wait
on its open sub-tasks (done children excluded, no recovery issue opened,
plain-language comment, raw error code never leaks), and (2) it still
escalates when no open dependency remains.
- `doc/execution-semantics.md`: document the "Deliberate wait is not a
lost run" recovery rule and the requirement that a post-decomposition
umbrella hold a first-class waiting path rather than relying on
`parentId` rollup.
## Verification
- `cd server && npx tsc --noEmit` — passes against current `master`.
- New tests in `server/src/__tests__/heartbeat-process-recovery.test.ts`
(describe: "heartbeat orphaned process recovery"):
- "converts a continuation parked for review into a dependency wait on
its open sub-tasks"
- "still escalates a continuation parked for review when no open
dependency remains"
- Run with the repo's vitest setup, e.g. `pnpm vitest run
server/src/__tests__/heartbeat-process-recovery.test.ts` (requires the
embedded-postgres test harness).
## Risks
Low. The change adds a single guarded pre-check ahead of the existing
escalation path; behavior is unchanged when the cancellation error code
is not `issue_continuation_waiting_on_review` or when the issue has no
open sub-task / unresolved blocker to wait on. No schema or migration
changes.
## Model Used
Claude (Anthropic), Opus-class model, via the Claude Code agent harness
— extended thinking and tool use enabled.
## 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 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
- [ ] If this change affects the UI, I have included before/after
screenshots (N/A — server-only)
- [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 (pending CI)
- [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge
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