Files
PaperClipAI/packages
DottaandPaperclip 6f278dd6d7 fix(runtime): settle recovery lease and connection lifecycles (#18167)
## Thinking Path

> - Paperclip manages AI agents and their work.
> - A remote runner can survive a controller restart.
> - Recovery renews its execution lease during slow preparation.
> - The native executor then shares that renewal timer.
> - Preparation kept its reference until all finalization finished. A
tick after lease release treated completion as ownership loss and
detached the retained runner.
> - A Linux continuity test also found that buffered wire events could
arrive before their connection was registered. Cleanup then kept a
completed promise under an undefined key and never finished.
> - This pull request transfers renewal ownership after execution
acquires its reference. It also registers each connection before wire
callbacks can run.
> - Recovered turns can complete, retain the warm runner, and settle
connection cleanup.

## Linked Issues or Issue Description

**What happened?**

A recovered remote run could complete, release its coordinator lease,
then detach during instruction collection. The next turn could find the
old runner still using the ingress port. Recovery then stopped because
it could not prove process ownership.

**Expected behavior**

Preparation keeps the lease alive until execution owns renewal.
Execution stops renewal before releasing the lease. Actual ownership
loss still detaches the runner. Buffered wire callbacks must use the
registered connection, and cleanup must finish.

**Steps to reproduce**

1. Recover an in-flight remote runner after a controller restart.
2. Let the recovered turn complete.
3. Hold instruction collection open through the next lease renewal tick.
4. Send a follow-up that needs the retained runner.

Related: #17439 introduced remote controller recovery. #18011 preserves
checkpoint authority through warm preparation. This change fixes the
lifetime of preparation's renewal reference.

## What Changed

- Pass an internal lease-acquired callback from recovery through
heartbeat dispatch.
- Release preparation's renewal reference after the executor registers
its own. Keep final cleanup for exits before dispatch.
- Add a PostgreSQL regression for completion while finalization is still
pending. Cover callback forwarding, acquire-before-release ordering, and
failure before dispatch.
- Register the authority connection before subscribing to wire events.
Handle an immediate close before accepting buffered data.
- Add regressions for a message or close delivered during subscription.
- Extend Linux continuity coverage with preparation renewal and delayed
instruction collection after recovery.
- Update the continuity guide and session verification recipes.

## Verification

- The new recovery regression failed before the fix because renewal
detached the runner after lease release. The 76 recovery, renewal, and
dispatch tests then passed. The final ordering and early-exit checks
passed again after replacing fixed sleeps with controlled interval
ticks.
- Both buffered-wire regressions failed before the connection fix. All
170 control-plane tests passed afterward. Existing tests cover stale
authority, ownership loss, pending operations, and closed ingress.
- Linux ARM64 acceptance passed at
`a7daefacceb8bd994d0b79d284cdf54f3e3829d1`, with Node 24.19.0,
PostgreSQL, the real Rust runner, TLS ingress, and a deterministic Codex
protocol fixture. The test interrupted the first turn, recovered it,
held finalization open for a renewal interval, and completed two
follow-ups. It retained one provider process, three turns in one
history, and the same runner identity. Final suspension and connection
cleanup completed. The ordinary warm-reuse case also passed three turns
with one provider process.
- Earlier Linux attempts completed the turns but hung during cleanup. A
debugger found a fulfilled promise keyed by an undefined connection. The
regression reproduces that defect. One later setup attempt timed out
while staging an unstripped 373 MB debug binary. The passing run used
the same binary with debug symbols removed.
- Reproduce Linux acceptance with the `same-server` case in
`doc/testing-native-remote-continuity.md`.
- `pnpm -r typecheck`, `pnpm build`, map validation, and `git diff
--check` passed at the final revision. The full local `pnpm test:run`
command was attempted, but the serial run had not finished after 13
minutes. It was stopped after the equivalent CI lanes passed. It is not
counted as a full local pass.
- Greptile and the Paperclip review both scored the final revision 5/5
with no findings. All Runner verification lanes passed. The first CI
attempt hit timing failures in voice recovery, agent YAML configuration,
and the task-title outage browser test. The full YAML and voice-recovery
files passed locally (88 and 19 tests). These paths were unchanged and
passed on the prior revision. All three passed on the single retry.
Final current-head status: 55 successful checks, one neutral check, and
two skipped Storybook checks. No pending or failed checks remain.
- Live Daytona/model acceptance and recovery of the hosted task remain
unverified. This PR does not deploy the change.

## Risks

- Releasing preparation before execution starts renewal could leave a
gap in authority. The callback runs after the executor registers its
reference.
- Preparation errors must not leak renewal. The recovery promise retains
idempotent final cleanup.
- Wire callbacks can run during subscription. Message and close
regressions check that registration is complete before either callback
runs.
- No schema, API, model, permission, lease duration, or retry policy
changes.

## Model Used

OpenAI GPT-6 through Codex, with reasoning, repository tools, code
execution, and browser diagnostics. The exact serving model identifier
and context window are not exposed in this session.

## 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
- [x] All Paperclip CI gates are green
- [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

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>
2026-10-29 11:18:53 -05:00
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