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DottaandClaude 16024ffa2a fix(native): a same-boot stall never leaves a run waiting on itself (#20721)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - Native runs keep an execution lease. Restart recovery takes over a
run only when it can prove that the recorded controller stopped.
> - A stall (SIGSTOP) longer than the lease, with no restart, makes the
executor lose its own lease. The executor then detaches for "the next
controller" and exits.
> - The next controller is this same process. Recovery asks the PID
probe if the recorded controller is alive. The recorded controller is
this process, so the answer is always "alive".
> - The task then waits forever: `in_progress`, no Retry, an active run,
and an active environment lease.
> - A second gap: after back-to-back stalls mid-tool, the executor
returns and nothing in this process ever looks at the run again. No
terminal state, no recovery and no Retry.
> - This pull request lets recovery recognise its own process. When this
process no longer drives the run and its own lease lapsed, the prior
owner is gone. The existing evidence checks then decide, as for any
stopped controller.
> - It also makes heartbeat schedule that recovery as soon as such an
executor exits.
> - The benefit is that a same-boot stall never needs a manual Retry.
When provider work may have started, the run fails with a working Retry
instead of a wait with no end.

## Linked Issues or Issue Description

Refs #20694 (the same class of fix for legacy `preparing` runs), #20529,
#20691.

**What happened?**
Chaos wave `w-20261111T034105-s9330`, task t02 (Daytona, OpenCode, fault
TM1). The server process was frozen with SIGSTOP for about 84 s while
run `89a3922b` prepared. After SIGCONT, `native.process_start_requested`
was recorded and `native.session.execute` failed after 118 ms: the lease
renewal found the lease lapsed, and the executor detached and exited.
From then on, recovery recorded `native.recovery.transition` "waiting
for safe ownership evidence" with reason `controller_still_alive` every
30 s for more than 20 minutes. The run stayed `running`, the issue
stayed `in_progress`, no Retry was shown, and the environment lease
stayed `active`.

Chaos wave `w-20261111T040439-s9331` (Daytona, codex/claude/opencode,
T1, TM1). Three stalls of about 90 s came back to back, with less than 1
s between them. Each run was in a tool call. After the second thaw,
`native.session.execute` failed for all three runs (lease lost, executor
detached). After that, no run had any event: no terminal state, no
`native.recovery.transition` and no Retry, for 20 minutes. The
in-sandbox turns kept going. A single 90 s stall (wave s9340) stays
green, because a later recovery signal happens to find the run. With
stacked stalls, that signal can land while the executor is still tearing
down, so it skips the run and sets no deadline.

**Expected behavior**
When this process no longer drives a run that it recorded as its own,
recovery takes the run back. No turn reached the runner here, so the
bootstrap restarts on the same run. When a turn or runner work may have
started, the run fails and shows a working Retry.

**Steps to reproduce**
1. Start a native remote (Daytona) run.
2. Send SIGSTOP to the server during preparation, and hold it longer
than the execution lease.
3. Send SIGCONT. The executor loses its lease, detaches and exits.
4. See that every recovery scan waits with `controller_still_alive`, and
the run never settles.

The new tests in `native-runner-restart-recovery.integration.test.ts`
("same-boot controller whose own lease lapsed") reproduce this at the
recovery layer.

## What Changed

- `claimNativeRestartRecoveries`: when the recorded controller is this
exact process (same boot ID and PID):
- If this process still drives the run (heartbeat execution or native
executor registered), recovery leaves the run to it
(`current_controller_preparing`).
- If neither drives it and the self lease lapsed, the takeover is
allowed (`current_controller_released`). The existing evidence checks
then choose the outcome: bootstrap again on the same run when a durable
record proves no command reached the runner, or fail with a Retry
(`blocked`) when runner or provider work may have started.
- An unexpired self lease still waits. A claim that has not reached its
executor holds it, and it lapses by itself.
- A run that this process handed to the next server (graceful drain
`restart_suspended` record, or the in-process hot-restart handoff
marker) stays with the next server.
- `heartbeat.ts`: when the executor ends with
`NativeControllerDetachedForRestartError`, there was no shutdown or
hot-restart handoff, and this process's own lease lapsed
(`ownNativeExecutionLeaseLapsed`), heartbeat schedules restart recovery
for the run when the executor exits. Recovery then reattaches the remote
runner whose turn is still running, restarts an unstarted bootstrap, or
fails the run with a working Retry.
- `claimNativeRestartRecoveries`: a self-owned lease that is still live,
with no driver here, now returns a `retryAt` at its expiry, so the wait
is bounded.
- `heartbeat/shutdown-handoff.ts`: add `isRunHandedOffForShutdown`.
Heartbeat recovery passes it to the claim.
- `suspendedByCleanDrain` now uses the shared
`handedToNextControllerSinceClaim` helper. Behavior is the same.
- Heartbeat test: an executor detaches after its own lease lapsed, with
no restart. The same process must take the run back. Red before (timed
out, the run stayed `running`), green after.
- Tests: five cases for the same-boot lapsed lease: bootstrap again with
no runner command; fail with a working Retry when a runner identity was
recorded; leave the run to a live in-process executor; leave a
handed-off run to the next server; still wait for a different live
controller.

## Verification

- Red before the fix: the three same-boot cases returned
`awaiting_evidence` / `controller_still_alive`.
- Green after the fix:
- `pnpm --dir server exec vitest run
src/services/native-runtime/native-runner-restart-recovery.integration.test.ts
src/services/native-runtime/native-restart-recovery.test.ts
src/__tests__/heartbeat-native-restart-suspension.test.ts`
- Daytona wave `w-20261111T050504-s9331` from this branch (same seed and
shape as s9331: 3 tasks, concurrency 3, three 90 s TM1 stalls with about
1 s between them). All 3 tasks reached `done` with no Retry. Run
`632f0564` (claude) shows the exact s9331 sequence:
`native.session.execute` failed after 216 s, then
`reattach_remote_runner` 0.4 s later (before the third stall), then a
second reattach after it, and the turn completed. Two tasks are graded
FAIL only on the T1 crossing check: their own fault landed after their
tool loop ended (for example loop ended 05:11:26, fault 05:11:44). Their
status is `done`, with no Retry.
- `tsc --noEmit -p server` is clean.

## Risks

- A same-process recovery scan can now claim a run that this process
recorded as its own. The guard needs all of these: the self lease
lapsed, no in-process execution of the run, and no handoff to the next
server. A claim that is still on its way to its executor holds a live
lease, so it is not taken twice.
- Upgrade safety: the decision uses only the coordinator row and
in-process state. Old saved rows are judged by the same rules. A new
process never matches an old boot ID, so deploys keep the existing proof
path.
- No new waits or file operations run before `turn.start`.
- There is still no ceiling on `awaiting_evidence` for a genuinely
different live controller (case c). This PR does not change that policy.

## Model Used

- Claude Opus 5.5 (`claude-opus-5-5`), via Claude Code, with tool use
(shell, file edit) and extended reasoning.

## 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 <noreply@anthropic.com>
2026-11-10 23:55:10 -06:00
DottaandClaude 9296c74e8d fix(native): let a restart claim take back its lapsed lease at budget admission (#20650)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - After a control-plane restart, restart recovery claims an
interrupted native run (`resume_dead_runner`) and grants a 20-minute
lease. Budget admission then re-checks that the claim still owns the run
before the resumed run may start provider work.
> - A host sleep, or the restart-chaos fault TM2, can make that stored
lease look expired while its owner is alive. #20625 lets the owner take
back such a lease when the row still shows exactly its own claim. That
rule did not cover budget admission.
> - So a claim whose lease lapsed before dispatch was refused with
`Native recovery no longer owns provider dispatch`. The run failed with
`adapter_failed`, recovery held it with
`native_continuation_requires_reconciliation`, and the user had to click
Retry.
> - This pull request applies the #20625 rule in budget admission: the
claim takes its lease back through the existing re-acquire condition.
> - The benefit is that a run resumed after a restart survives a time
jump before dispatch with no Retry. Every fence and every budget check
stays the same.

## Linked Issues or Issue Description

Refs #20625, #20474

**What happened?**
Restart-chaos wave L7 (seed 9107, local) on a branch with #20625, task
codex B5 TM2. A TM3 restart claimed the run (`resume_dead_runner`,
generation 2). TM2 then aged every database time by one hour before the
resume reached dispatch. Budget admission
(`lockRunBudgetRecoveryOwnerInTransaction`) required a live lease and
threw `Native recovery no longer owns provider dispatch`. The run failed
with `adapter_failed`, recovery stopped with
`native_continuation_requires_reconciliation` /
`preserve_without_replay_v1`, and the task needed Retry.

**Expected behavior**
The claim's own lapsed lease is taken back, and the resume is admitted
when the budget allows it.

**Steps to reproduce**
`node cli/node_modules/tsx/dist/cli.mjs tests/restart-chaos/main.ts
--env local --adapters codex,claude --workloads A1,B5,C1 --faults
TM1,TM2,TM3 --time-age-hours 1 --concurrency 3 --tasks 6 --seed 9107`
(timing-dependent).

## What Changed

- `native-execution-lease.ts`: two new helpers. Both use the #20625
own-claim rule. Neither takes a lock out of order.
- `readOwnNativeRecoveryClaimLease` (read-only) returns `live`,
`lapsed_own_claim` or `lost`. It compares the lease against the database
clock. A lapsed lease counts as `lapsed_own_claim` only when all of
these hold:
    - the same lease owner;
    - this process's controller boot, pid and process start;
    - a non-null `recovery_state`;
- `nativeExecutionLeaseHeldCondition({ remote: false,
controllerGeneration })`, which applies the #20625 own-claim rule and
every #20474 untouched check;
    - no non-local environment lease on the run.
- `extendOwnNativeRecoveryClaimInTransaction` extends such a lease by
the local execution TTL, with one conditional UPDATE on the same
predicate.
- `budget-reservations.ts`:
- `lockRunBudgetRecoveryOwnerInTransaction` still refuses another owner,
and refuses a lapsed lease unless it is the run's own untouched claim.
It no longer locks the run row, so the documented coordinator → issue →
run order holds.
- The lease is extended only at the end of an admitted reservation
(`reserveRunBudget`) or an admitted dispatch recheck
(`recheckRunBudgetReservationInTransaction`). At those points the caller
already holds the run row lock. A refused admission, for example one
over budget, leaves the lease lapsed.
- `heartbeat-native-restart-suspension.test.ts`: the test "still settles
a recovery whose claim merely expired" encoded "expired means not the
owner". #20474 and #20625 changed that rule for an untouched own claim.
The test now has two cases:
- an expired claim that another actor recorded on (`awaiting_evidence`)
still settles with no provider session;
  - an untouched expired claim is dispatched.
- `doc/plans/2026-11-09-explicit-native-lease-claim-tokens.md`: Step 1
lists the new user of the rule.

## Verification

- New
`server/src/__tests__/native-recovery-dispatch-lease-reacquire.test.ts`:
- `reserveRunBudget` takes back the claim's own lapsed lease and admits
the resume. This fails before the change.
  - An over-budget resume is still refused, and its lease stays lapsed.
- Fenced variants each throw `Native recovery no longer owns provider
dispatch` and leave the row unchanged: a graceful-shutdown suspension,
an appended failure settlement, `awaiting_evidence`, `blocked`, a claim
from an earlier generation, another boot, a remote sandbox lease, and
another lease owner.
- At the dispatch gate (`recheckRunBudgetReservationInTransaction`), an
admitted own claim gets its lease extended, and a fenced claim is
refused with the row unchanged.
- Related suites pass (308 tests):
`native-execution-lease-reacquire.test.ts`,
`closed-native-receipt-accounting.test.ts`,
`heartbeat-native-predispatch-retry.test.ts`,
`run-dispatch/adapters/postgres.test.ts`,
`heartbeat-native-restart-suspension.test.ts` and
`heartbeat-restart-claim-lapse.test.ts`.
- `cd server && npx tsc --noEmit` passes.
- Live: one L7 wave (seed 9107) ran on the first commit of this branch
(`w-20261110T212307-s9107`). It logged 0 `Native recovery no longer owns
provider dispatch` refusals, against 1 in the previous wave. Codex B5
TM2 got past dispatch, but it still needed Retry for another reason:
after a `runner.drain` timeout, the scheduled same-run resume did not
send the continuation of #20645. That case is tracked separately. The
other five tasks passed.

## Risks

- This widens when a restart claim can take back its own lapsed lease,
and only at budget admission. It is local only. It needs the same owner,
boot and generation, and the row must show exactly that claim. A claim
that any other actor touched still fails as before.
- Budget hard-stop behaviour is unchanged. The lease is extended only
after budget admission passes.
- No schema change and no migration. Rows saved by earlier releases
carry the same history shape.

## Model Used

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

## 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 <noreply@anthropic.com>
2026-11-10 17:43:46 -06:00
DottaandClaude ed5e7493bb fix(native): take back a lapsed lease held under the run's own restart claim (#20625)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - A native run holds an execution lease on its
`native_run_finalizations` row. The owner renews it every 5 minutes.
After a host sleep (or the restart-chaos time fault TM2), the stored
lease looks lapsed although the owner is alive.
> - #20474 lets the same owner take back a lapsed lease when no other
actor recorded anything on the row. One of the checks is
"`recovery_state` is null".
> - Restart recovery writes `recovery_state` (`resuming_session`,
`awaiting_runner_reattach` or `bootstrap_incomplete`) in the same update
that grants the lease. The executor keeps that value until a result is
accepted.
> - So a run that a restart resumed can never take back its own lapsed
lease. Renewal interrupts the turn, and failure settlement is refused
with `native_session_lease_lost`. The run fails with `adapter_failed`,
recovery holds it with `preserve_without_replay_v1`, and the user must
click Retry.
> - This pull request counts the claim's own record as untouched when
the row still shows exactly that claim and nothing recorded since.
> - The benefit is that a resumed run survives a later host sleep with
no Retry. Every real takeover still fences the late owner out.

## Linked Issues or Issue Description

Refs #20474

**What happened?**
The zero-retry restart-chaos matrix (local wave L7, seed 9107: TM1, TM2,
TM3 with 1 h aging) had 3 of 6 tasks that needed Retry. All three were
Codex runs. In each run, a TM3 kill made restart recovery resume the run
(`resume_dead_runner`, generation 2). The runner restored the
conversation, reported `provider_turn_lost_on_restore`, and the
same-conversation restart continuation started as designed. Then the TM2
fault aged every database time by one hour. The execution lease lapsed
while its owner was alive. The run then failed with
`native_session_lease_lost` (`adapter_failed`), and recovery stopped
with `native_continuation_requires_reconciliation` /
`preserve_without_replay_v1`. One run had already proposed its result
and completed its turn. The Retry click worked every time.

**Expected behavior**
A run whose lease lapsed only because time jumped, and that no other
actor claimed, continues with no Retry. This must also be true after a
restart resumed that run.

**Steps to reproduce**
`node cli/node_modules/tsx/dist/cli.mjs tests/restart-chaos/main.ts
--env local --adapters codex,claude --workloads A1,B5,C1 --faults
TM1,TM2,TM3 --time-age-hours 1 --concurrency 3 --tasks 6 --seed 9107`

## What Changed

- `server/src/services/native-runtime/native-execution-lease.ts`: the
"untouched" part of `nativeExecutionLeaseHeldCondition` now also accepts
the run's own local restart-recovery claim. All of these must be true:
- the last `recovery_history` entry is that claim: same controller boot
and generation as the row;
- its disposition matches the current `recovery_state`
(`resume_dead_runner` → `resuming_session`, `reattach_existing_runner` →
`awaiting_runner_reattach`, `bootstrap_incomplete` →
`bootstrap_incomplete`);
  - `recovery_request_id` equals the request that claim recorded.
Any later actor appends a history entry (shutdown suspension, failure
settlement), moves the state (`awaiting_evidence`, `blocked`), or
replaces the owner, boot or generation. Each of these still fences the
late owner out. All other untouched checks are unchanged.
- `native-execution-lease-reacquire.test.ts`: new cases for each claim
kind, a requested claim, failure settlement under the claim, and eight
fenced variants.
- `doc/plans/2026-11-09-explicit-native-lease-claim-tokens.md`: Step 1
lists the new rule.

## Verification

- Red/green: `cd server && npx vitest run
src/services/native-runtime/native-execution-lease-reacquire.test.ts`.
Without the source change, 5 new cases fail (the three claim kinds, the
requested claim, and failure settlement). With it, all 37 pass.
- Related suites pass: `native-execution-lease.test.ts`,
`heartbeat-restart-claim-lapse.test.ts`,
`heartbeat-native-orphan-sweep-lease-race.test.ts`,
`native-runner-restart-lease-renewal.integration.test.ts`,
`native-runner-restart-preparation.integration.test.ts`.
- `cd server && npx tsc --noEmit` passes.
- Live: the same L7 wave (seed 9107, local) on this branch. The server
log has 0 `native_session_lease_lost` (the baseline had 3). The two
tasks whose cells failed this way in the baseline (codex C1 TM1, codex
C1 TM3) now pass with no Retry. Two other tasks needed Retry for
different causes, which this pull request does not change: codex B5 TM2
(a `runner.drain` timeout, then a same-run retry that may not continue a
turn lost on restore) and claude C1 TM2 (`ACPX session is not open` on
`turn.start` until the retry budget ran out). The L6 wave (seed 9106)
also ran on this branch: 5 of 6 passed. Its one failure is
`execution_recovery_budget_exhausted` and is not related to leases.

## Risks

- The rule widens when an owner may take back its own lapsed lease. It
applies only to local runs, before a result, with the same owner token,
attempt, boot, pid, process start and generation. A claim that any other
actor changed afterwards does not match.
- Rows saved by earlier releases carry the same history entry shape, so
a run claimed before a deploy is handled the same way. A deploy changes
the boot, so the new process never takes back the old process's lease.
- No schema change and no migration.

## Model Used

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

## 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 <noreply@anthropic.com>
2026-11-10 14:31:15 -06:00
DottaandClaude Opus 5.5 e5abcbf7a9 fix(native): release a restart claim that lapsed during a failed preparation (#20529)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - After a restart, native restart recovery claims an unfinished run
and prepares it again on the same heartbeat run.
> - The restart claim holds a lease on the run's native coordinator row.
For a remote claim with durable authority, the lease is 60 s.
> - When that preparation fails, the failure path first preserves the
remote workspace. Then it settles the run.
> - When preparation outlived the claim lease, preservation took the
run's own lapsed claim for another owner. It threw
`NativeWorkspaceFinalizationBusyError`, and the execution returned
without settling. The run stayed `running` with no event until a later
scan reclaimed it (4.5 min in one wave, never in another).
> - This pull request releases exactly that lapsed claim and asks
restart recovery to decide on the run right away. It also logs the cause
when the failure path defers.
> - The benefit is that a failed restart-claim preparation is reclaimed
or blocked visibly within seconds, instead of hanging.

## Linked Issues or Issue Description

Refs #20514 (the same restart-chaos investigation).

**What happened?**
In restart-chaos wave `w-20261110T101517-s11936` (Daytona R1, K2, ST1),
run `9d39550a` got a `bootstrap_incomplete` restart claim (generation
3). Its `heartbeat.prepare.run_output` step waited 141 s through an ST1
storage outage. The 60 s claim lease lapsed meanwhile, and the begin
failed with `run_log_writer_authority_lost` when storage came back. The
inner failure path then called `preserveNativeFailedWorkspace`. Its
`ownsClaim` check required an unexpired lease, so the run's own claim
counted as another owner and the call threw
`NativeWorkspaceFinalizationBusyError`.
`preserveNativeWorkspaceOnFailure` set `nativeOwnershipHeld` and the
execution returned before `runCompletion.failRun`. No failure was
recorded, and nothing was logged. The run stayed `running` until a later
scan reclaimed it 4.5 minutes later. In a second wave no such scan came,
and the run stayed `running` for 30 minutes.

**Expected behavior**
A failed preparation must settle or retry, or be claimed promptly by its
next owner. It must not stay `running` with no record.

**Steps to reproduce**
1. Claim a remote native run for restart recovery.
2. Keep its preparation busy past the 60 s claim lease, for example with
a storage outage during `runOutput.begin`.
3. Let preparation fail. The run stays `running` with no failure event.

**Paperclip version or commit**
`master` at 23fa37f5bb.

## What Changed

- `native-execution-lease.ts`: new `releaseLapsedNativeRestartClaim`. It
is one conditional UPDATE that releases the claim only when the run is
`running`, the coordinator is `observed` with no result, and it still
names this exact `leaseOwner`, `controllerGeneration` and `attempt` with
an expired lease. A successor claim, a result, or a live lease leaves
the row unchanged.
- `heartbeat.ts`: when failed-workspace preservation defers on a
restart-claim execution, the failure path tries that release. If it
succeeds, the execution schedules a restart-recovery pass for the run
(`scheduleNativeSessionResumeDispatch(..., "restart")`) after it leaves
`activeRunExecutions`. Recovery then reclaims the run, or blocks it with
a named reason, right away. The path also logs the redacted cause, the
claim kind and whether the claim lapsed. Before, this return was silent.
- `preserveNativeFailedWorkspace` is unchanged. It still refuses an
expired claim (`refuses a stale expired recovery claim`).
- New `heartbeat-restart-claim-lapse.test.ts`. A restart-claim execution
whose preparation fails after its claim lease lapsed, on a run with a
prepared remote workspace, gets an immediate new restart-recovery
decision. It failed before the change: the run stayed `running` with the
lapsed claim and recovery answered `controller_still_alive`.

Not in this PR: renewing the claim lease during preparation for
`bootstrap_incomplete` claims (recovery.ts). Another restart-chaos fix
owns that change. This PR makes sure a lapsed claim's failure is handed
back at once either way.

## Verification

- `cd server && npx vitest run
src/__tests__/heartbeat-restart-claim-lapse.test.ts`: passed. Without
the heartbeat change it times out.
- `cd server && npx vitest run
src/services/native-runtime/native-failed-workspace-recovery.test.ts
src/__tests__/heartbeat-native-restart-suspension.test.ts
src/services/native-runtime/native-execution-lease.test.ts`: passed (195
tests across the four files).
- `cd server && pnpm typecheck`: no errors.
- Live Daytona proof uses `--native-trigger` from #20538. Results follow
in a comment.

## Risks

- Low risk. The release matches only the exact lapsed claim of a
running, result-less, `observed` run in one statement. A takeover
between the check and the release changes the owner or generation, so
the release does nothing.
- The run is not settled by this execution. Restart recovery makes the
decision under its own rules, which is the same path a later sweep would
take.
- Previous-release story: no persisted shape or identity changes. Rows
saved by the previous release are read and released the same way.

## Model Used

- Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, with tool use and code
execution in Claude Code.

## 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>
2026-11-10 09:55:21 -06:00
DottaandClaude Opus 5.5 902f376796 fix(recovery): keep a remote restart claim's lease through slow preparation (#20540)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - After a restart, a remote run resumes on the same heartbeat run
under a restart claim: a lease on its native coordinator row, 60 s for a
remote claim (`REMOTE_CONTROLLER_LEASE_MS`)
> - Preparation then runs before the native executor takes its own lease
renewal. It includes the run-log begin and the workspace restore, which
can each wait out a storage outage for minutes (#20299)
> - Preparation renewed the claim only for `reattach_remote_runner`. A
`bootstrap_incomplete` or resume claim kept its 60 s lease with nothing
renewing it
> - So a preparation wait longer than a minute let the lease lapse. The
run failed at its next writer-authority check
(`run_log_writer_authority_lost`) the moment storage came back
> - This PR renews every remote restart claim during preparation. When
the same owner's executor claims at the next attempt, it takes over that
renewal
> - The benefit is that a resumed remote run survives a long storage
outage during preparation instead of failing as soon as storage returns

## Linked Issues or Issue Description

**What happened?**
In restart-chaos waves on Daytona R1 with `--storage s3 --storage-faults
ST1` and K2 at +110 s, a resumed `bootstrap_incomplete` run's
`heartbeat.prepare.run_output` ended `failed` right after the outage
ended:
- `w-20261110T101517-s11936` t01, run `9d39550a`. The claim was at
10:19:55 and the outage ended at 10:22:18.15. `run_output` failed at
10:22:18.17, after 141 s.
- `w-20261110T081647-s11936` t02, run `9da10424`. The claim was at
08:21:29 and the outage ended at 08:23:30.

During the outage the journal claim fails on its head `GET` before it
checks authority. The first attempt after the outage reaches
`claimFrom`'s `assertAuthority` (`run-log-authority.ts`), which requires
a live coordinator lease. That lease expired 60 s after the claim.

**Why not just widen the condition?** For a `bootstrap_incomplete`
claim, the executor's own claim moves the coordinator attempt to N+1
(`nextNativeProviderAttempt`). `startNativeSessionExecutionLeaseRenewal`
shares one renewal per lease owner and threw
`native_session_renewal_binding_changed` when the attempt differed. That
is presumably why preparation renewal was limited to reattach claims.

**Related:** #20460 (live status while a run waits out a storage
outage). #20514 settles a failure that this lapse used to leave silent.

## What Changed

- `heartbeat/recovery.ts`: start the preparation lease renewal for every
remote restart claim (`scope.remote`), not only
`reattach_remote_runner`.
- `native-runtime/native-execution-lease.ts`:
- When the same owner's executor starts its renewal at a higher attempt,
it takes over the shared renewal, rebinding the attempt and `onLost`. A
lower attempt or any other binding change still throws.
- A renewal that failed under the old binding is not counted as a loss.
- A failed renewal is not a loss when the coordinator shows the same
owner already at a higher attempt (the executor's claim committed while
the renewal was in flight). The renewal deadline still ends ownership if
no executor takes over.
- Tests: one recovery case and three lease-renewal cases (below).

## Verification

- `cd server && npx vitest run
src/services/native-runtime/native-execution-lease.test.ts
src/services/heartbeat/recovery.test.ts
src/services/native-runtime/native-execution-lease-reacquire.test.ts
src/services/native-runtime/native-runner-restart-lease-renewal.integration.test.ts
src/services/native-runtime/native-runner-restart-preparation.integration.test.ts`:
143 pass. `npx tsc --noEmit`: pass.
- Red/green, recovery test "keeps a remote bootstrap restart claim
through preparation longer than its first lease, then hands it to the
next attempt": the claim's first lease ends 4 s in. Preparation runs
past it and the run-log writer authority still passes. Then the executor
claims attempt 2 and its renewal keeps extending the lease with no
detach.
  - Red with master's `recovery.ts`: the lease is never extended.
- Red with only the `recovery.ts` change:
`native_session_renewal_binding_changed`.
  - Green with both.
- Red/green, lease unit tests: handover to the next attempt (and refusal
of a lower one); a failure under the old binding is not a loss; a
failure while the coordinator shows the same owner at a higher attempt
is not a loss. All three fail on master.
- Live wave: results in a comment below.

## Risks

- Medium-low.
- The preparation renewal now runs for remote `bootstrap_incomplete` and
`resume_dead_runner` claims too. It renews the same coordinator row
under the same CAS conditions reattach claims already use.
- If preparation truly loses the lease (another owner takes it), its
`onLost` still runs (`detachNativeSessionsForRestart`) and authority
checks still fence writes.
- The new non-loss case applies only when the coordinator names this
exact owner at a higher attempt. The renewal deadline still bounds it.
- Previous-release state: this persists nothing new. A claim saved by
the previous release resumes unchanged; its preparation is simply
renewed now.

## Model Used

Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, with tool use and code
execution in Claude Code.

## 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

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

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-10 08:07:16 -06:00
DottaandClaude 1402e92d1f fix(native): take back an executor lease that lapsed only because the host slept (#20474)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - A native run holds an execution lease on its
`native_run_finalizations` row. The lease lasts 20 minutes, and the
owner renews it every 5 minutes.
> - When a laptop sleeps for longer than the lease, the wall clock and
the database clock move past `lease_expires_at`. The server's monotonic
timers barely move.
> - After the wake, the next renewal finds its own lease expired. It
interrupts a healthy turn with `native_session_lease_lost`, and the user
must click Retry. Nobody else took the lease.
> - Several background consumers act on an expired lease without
changing its owner. So expiry alone cannot simply be ignored for the
owner.
> - This pull request makes takeover explicit. The same owner can take
back its own lapsed lease only when no other actor has recorded anything
on the row or the run.
> - The benefit is that a run interrupted only by host sleep continues
with no Retry. A real takeover still fences the late owner out.

## Linked Issues or Issue Description

**What happened?**
The restart-chaos time fault TM2 stops the server and runner tree and
ages every database time by one hour, as a stand-in for a laptop that
slept. After the thaw, the next 5-minute renewal of the native execution
lease found the lease expired. It interrupted the turn
(`turn.interrupted` at 300 s, `native_session_lease_lost`). The failure
settlement was then refused with the same code, and the UI showed
"Couldn't finish this attempt" with Retry. The owner, attempt, boot and
pid were unchanged. Evidence: wave `w-20261110T051535-s304` t01 (TM2, 1
h) failed R3. t02 in the same wave (TM1, a 113 s server-only freeze with
no clock jump) passed, so the failure follows the clock jump and not the
pause.

**Is this a harness artifact?**
No. TM2 ages the stored rows, and a real sleep moves the clock forward.
Both produce the same comparison: a stored `lease_expires_at` is earlier
than `clock_timestamp()` after the wake. The server's renewal timer and
local deadline use the monotonic clock. On macOS and Linux that clock
does not count suspended time, so they do not notice the sleep in either
case. The first database check after the wake is the renewal predicate
`lease_expires_at > clock_timestamp()`, and it fails in both cases.

**Expected behavior**
A run whose lease lapsed only because time jumped, and that no other
actor claimed, keeps running and finishes without Retry.

**Steps to reproduce**
`node cli/node_modules/tsx/dist/cli.mjs tests/restart-chaos/main.ts
--env local --adapters codex --workloads B5 --faults TM2
--time-age-hours 1 --concurrency 1 --tasks 2 --seed 304` with the
harness from #20458.

Refs #20458, #20500

## What Changed

- `native-execution-lease.ts`: add `nativeExecutionLeaseHeldCondition`
and `lockNativeExecutionLeaseForReacquire`. A lease is held when it is
live. For a local run, it is also held when it lapsed and is untouched.
"Untouched" means all of these are true:
  - the claimed generation matches;
  - the phase is `observed` and no result is accepted;
- `recovery_state`, `recovery_request_id`, `failure_code` and
`next_attempt_at` are null;
  - `controller_host_hash` is not the board's attested-stopped stamp;
- the run is still `running`, without the ownership-unverified error
code and without a `nativeStartupCleanup` marker.
- The caller's WHERE already matches the owner token, attempt and
controller boot/pid/start.
- The lock helper locks the coordinator row. If the lease lapsed, it
also takes a share lock on the run row. The predicate then reads the
latest committed run, and an in-flight run write cannot slip past it.
- Renewal (`startNativeSessionExecutionLeaseRenewal` /
`renewNativeSessionExecutionLease`) takes back a lapsed lease when the
executor passes its claimed generation. Remote targets never do. A
deadlock (40P01) on that rare path retries at the next tick, as a
statement timeout already does.
- `native-session-executor.ts`: the executor passes its generation to
renewal. Failure settlement and the final release use the same lock and
condition. After a result is accepted, a lapsed lease can only be
relinquished (set to null), never renewed, because workspace
finalization may act on it.
- New `native-execution-lease-reacquire.test.ts` (embedded Postgres, 24
cases).
- `doc/plans/2026-11-09-explicit-native-lease-claim-tokens.md`: step 2,
which adds explicit claim tokens for the consumers this PR does not yet
move.

Consumer inventory (readers of
`native_run_finalizations.lease_expires_at` that can act on a lapsed
lease):
- Restart recovery and takeover (`claimNativeRestartRecoveries`): claims
first. It writes `recovery_state`, `lease_owner` or `controller_*` under
the coordinator lock.
- Finalizer and cleanup claims: claim first (`lease_owner`).
- Failed-run owner release, environment settlement, observed-workspace
preservation, retained-session cleanup: require a terminal run status,
`committed`, or a recovery state. The rule refuses all of these.
- Finalization reconciler, live recovery: require `retryable_failure`, a
field the rule checks.
- Board controller-stopped confirmation: writes `controller_host_hash`,
which the rule checks.
- Startup cleanup promotion: writes the run's `nativeStartupCleanup`
marker, which the rule checks. It also applies only to runner-task
leases.
- Another server's orphan sweep: writes the run's ownership-unverified
code. The rule checks it when the marker lands first. The reverse order
is deferred (see Risks).
- Workspace finalization copyback: acts on a lapsed post-result lease
without a coordinator write. Post-result leases are therefore never
renewed (deferred to step 2).
- Accepted-result and token lease settlement, checkpoints, cancellation
delivery, admission and the other readers: act on live leases only, or
are read-only.

## Verification

- `cd server && npx vitest run
src/services/native-runtime/native-execution-lease-reacquire.test.ts`
passes (24/24) on this branch. With the source files from
`origin/master`, 5 fail, including "lets the same owner take back a
lease that lapsed untouched" and "renews from the shared timer after the
sleep instead of interrupting the turn".
- (a) The owner takes back its lapsed lease when no other actor claimed
it. Also covered: the shared 5-minute timer, rows saved by the previous
release, and the post-result relinquish.
- (b) 14 cases where a consumer claimed first fence the owner out and
leave the row unchanged. A release over a recorded recovery claim is
refused. A different boot (a deploy mid-run), a different generation, a
missing generation and a remote target are refused.
- (c) Races have exactly one winner: a claimant and the owner lock the
coordinator in each order, an in-flight run status write races the
owner, and 8 simultaneous starts each have one winner.
- Existing suites pass: `native-execution-lease.test.ts`,
`native-session-executor.test.ts`, `native-runner-restart-recovery`,
`native-runner-restart-lease-renewal`,
`native-runner-restart-preparation` and
`native-runner-restart-checkpoint-cost` integration tests.
- Live proof: `B5 × TM2 --time-age-hours 1 --tasks 2 --seed 304` with
`--server-from` this branch. Wave `w-20261110T083444-s304` passed 2/2,
with no Retry and no `native_session_lease_lost`.
- Both runs ran past the 300 s renewal after the one-hour aging, at the
exact point where `origin/master` fails. t01 ran 310 s and t02 ran 319
s. Each was a single run that succeeded.
- The harness used the aging exclusion from #20500 (merged): process
start identity is not aged. Without that exclusion, TM2 also moves
`controller_process_started_at`. The live owner then fails its identity
check, which a real sleep never causes. An earlier wave on the unpatched
harness, `w-20261110T072106-s304`, failed 0/2 for that reason only.

## Risks

- Previous release: no persisted shape changes and no migration. Rows
saved by the previous release have the same columns, and a null
`controller_host_hash` is accepted. A deploy that lands mid-run cannot
take back the old server's lease, because the boot and pid differ.
- On the normal path, a live lease takes the same single coordinator
lock as before. The run share lock is taken only after a lapse, and
nothing is added before `turn.start`.
- Deferred to step 2 (see the plan):
- The orphan sweep of another server process can read the row before the
owner takes the lease back and write after. That run would carry an
ownership-unverified error while it is live.
- Shared-workspace holder detection reads a silent run with lapsed
leases as gone.
  - Post-result leases are not renewed.
  - Remote leases are unchanged.

## Model Used

- Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, used in Claude Code
with tool use (shell, file editing, sub-agent code audit).

## 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
- [ ] I will address all Greptile and reviewer comments before
requesting merge

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

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-11-10 02:47:53 -06:00
DottaandClaude Opus 5.5 c6eecac1e0 fix(heartbeat): keep a shutdown-suspended native recovery for the next boot (#19530)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - The Runner Full-Stack E2E workflow tests the Runner in Daytona
sandboxes from a signed, content-addressed image
> - Every change to an audited Runner input needs a new image before a
Daytona cell can test it
> - The image job took 10 to 16.5 minutes today, and a restart chaos
campaign waits on it after each runner-side fix
> - Measurement shows two serial waits: a full Rust dependency compile
(about 5 of 6.6 minutes) and a 3.5 to 4 minute download of cached base
layers that starts only after the builder stages finish
> - There is also no way to build only the image: every dispatch reaches
a paid gate that the operator must reject
> - This pull request removes both serial waits and adds an `image_only`
dispatch input
> - The benefit is a shorter fix-to-Daytona-test loop, with every image
security check unchanged

## Linked Issues or Issue Description

**What happened?**

The `Publish verified Daytona image` job is on the critical path of the
control-plane restart chaos campaign. Builds today took 16.5 min (run
42240434011), 15 min (42253920727), 10.5 min (42259118276) and 16 min
(42265637650). Run 42264611573 failed: its RunsOn runner lost
communication with GitHub 7.6 minutes into the build step, during the
Rust compile. GitHub has no log for that job.

**Expected behavior**

A Runner source change should not recompile the locked third-party Rust
graph. Cached image layers should download while the builder stages
compile. An operator should be able to publish only the image, without a
paid gate.

**Steps to reproduce**

Read the BuildKit timeline in the logs of job 127970125495 (run
42240434011). See the stage table below.

## What Changed

- `docker/daytona-runner/Dockerfile`: compile the locked Rust dependency
graph in its own layer against placeholder targets. The layer depends
only on `Cargo.toml`, `Cargo.lock` and the crate manifest. The step
deletes the placeholder outputs and fingerprints, so the next step
always compiles the real Runner sources. The final stage still receives
only the stripped executable.
- `docker/daytona-runner/Dockerfile`: move the content-ID /
source-revision check above the two `COPY --from` steps. It does not
depend on either builder stage, so BuildKit now downloads the cached
base and CLI layers in parallel with the compile. Both copies use `COPY
--link`.
- `.github/workflows/runner-full-stack-e2e.yml`: add the boolean
`image_only` dispatch input. `authorize`, `target_lock`, `catalog` and
`daytona_image` run unchanged. Every other campaign job gets `&&
inputs.image_only != true`. `authorize` rejects `image_only` together
with TestOps inputs.
- `tests/runner-e2e/workflow-image-only.test.ts` (new): pin the job
classification, the top-level guard on each campaign job, the guard on
every protected environment, and the TestOps rejection.
- `tests/runner-e2e/README.md`: document the layer layout and the
`image_only` command.

## Verification

Measured on the same RunsOn `m7i-flex.xlarge` (4 vCPU, 16 GiB, native
x64) runner class. "Before" is master job 127970125495 (run
42240434011). "After (cold)" is this branch, job 128077687214 (run
42271236140), with no dependency layer in the registry cache yet. Its
paid gate was rejected.

| Stage | Before | After (cold dependency cache) |
|---|---|---|
| Whole image job | 16.5 min | **11.6 min** |
| Rust dependency graph | 311 s (inside one 399 s step) | 395 s (own
layer; reused from cache after a master build) |
| `paperclip-runner-core` compile | ~87 s | 65 s |
| Cached base and CLI layer download | 236 s, **after** cargo finished |
257 s, **in parallel** with cargo |
| Copy runnerd + provider pack | 20 s + 50 s | 9 s (`--link`) |
| Provider pack stage | 143 s (parallel) | 152 s (parallel) |
| Export + push | 82 s + 10 s | 81 s + 11 s |
| Dependency layer size | n/a | `target` 852 MB + registry 333 MB
(builder stage only) |

With a warm dependency cache, a Runner source change compiles only the
65 s crate step. The critical path then becomes the ~4 min cached-layer
download or the provider pack. The expected job time is about 7 to 8
min. I measure this after merge with an `image_only` dispatch (master
first, to write the cache, then a Rust-only branch change).

Disk: the instance starts with 38.76 GiB free. The dependency layer adds
about 1.2 GB uncompressed to builder storage. The final image does not
change.


- `vitest run tests/runner-e2e/workflow-image-only.test.ts
tests/runner-e2e/workflow-security.test.ts
tests/runner-e2e/daytona-image.test.ts`: the new test and all image
tests pass. Three tests in `workflow-security.test.ts` (`gates every
provider-secret job with stable actor IDs`, `keeps provider credentials
inside explicitly gated paid workflows`, `isolates private archive trust
from workflows that execute target-branch code`) fail on `origin/master`
without this change, because of `chat-catalog-testops-case.yml`. This
pull request does not change them.
- `node --test tests/runner-e2e/product-regression-testops.test.mjs`:
15/15 pass.
- No local Docker build. The Dockerfile is measured with a
branch-targeted CI dispatch whose paid gate was rejected.

## Risks

- The dependency layer keeps the Rust `target` and registry trees in a
builder-stage layer, and default-branch builds export it to the registry
cache. This adds builder disk and cache upload when `Cargo.lock`
changes. The build prints the size (`du -sk target
/usr/local/cargo/registry`).
- The dependency cache helps only after a default-branch build writes
it. Branch builds read it but never write it. This is the existing cache
policy.
- `image_only` changes the workflow, so it works only after merge to
master.
- No check is removed. Lockfile verification, cosign sign and verify,
the anonymous pull check, the provider-pack manifest match, the
default-branch-only cache write and the actor allowlist are unchanged.

## Model Used

- Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, through Claude Code
with tool use (shell, GitHub CLI). Extended reasoning on.

## 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

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

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-06 13:01:16 -06:00
DottaandClaude Opus 5.5 5723fd82ca fix(native): release a fresh claim when task preparation fails (#19065)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work.
> - A native run claims its finalization coordinator before task
preparation. Then it starts the provider turn.
> - Task preparation can fail after the claim and before any provider
turn.
> - In that case the executor kept its claim. Failure settlement read
the claim as a live owner and stopped. Nothing failed the run.
> - The 60-second execution-control watchdog then failed the run as
`execution_finalization_deadline_exceeded`. The original error was lost.
> - This pull request releases only that exact fresh, unstarted claim
after renewal stops.
> - The benefit is that ordinary settlement fails the run at once with
its real error and keeps the workspace files. The watchdog stays a
backstop.

## Linked Issues or Issue Description

Refs #19028. That PR keeps the earlier failure code when the watchdog
fails a run. In this case no earlier code is saved, so it cannot help.
This PR removes the wait for the watchdog. I searched open PRs for
duplicates. #18820, #19034 and #19038 touch near code, but none release
a preparation claim.

**What happened?**

A native task with a prepared sandbox workspace failed during
preparation, after the controller claim committed. The coordinator
stayed `observed` and kept this controller's lease owner. The heartbeat
failure path calls workspace preservation. Preservation refuses any
lease owner without a matching restart claim, so it raised
`NativeWorkspaceFinalizationBusyError`. The heartbeat then treated
ownership as held and returned without a terminal write. About 60
seconds later the watchdog failed the run with a generic "verify the
provider stopped" action. The real error (for example
`native_harness_storage_owner_missing`) stayed only in the workspace
operation record.

**Expected behavior**

When no provider turn started under a fresh claim, settle the failure
like a failure before the claim: retain the source, fail the run with
its own error, and do not wait for the watchdog.

**Steps to reproduce**

1. Start a native run with a prepared remote workspace.
2. Make task preparation fail after `native.coordinator.claim` commits
(for example, a preparation callback throws).
3. See that the run stays `running` until the control deadline fails it
as `execution_finalization_deadline_exceeded`.

## What Changed

- `native-execution-lease.ts`: add
`releaseUnstartedNativeExecutionClaim`. It clears the lease owner and
expiry only for the exact run, company, issue, owner and attempt, while
the phase is `observed` and no result exists.
- `native-session-executor.ts`: when task preparation fails after a
fresh claim, mark that claim. The startup owner releases it after
renewal stops. A restart-recovery claim, a startup-cleanup context,
Stop, restart detach, or a different owner keeps the old behavior.
- Tests: an executor regression for the fresh and restart cases, and a
real-database test for release and workspace retention against the exact
owner, a foreign owner, a different attempt and an accepted result.
- `doc/execution-semantics.md`: state that the deadline is a backstop
and describe the release.

## Verification

- Red before the fix: `cd server && npx vitest run
src/services/native-runtime/native-session-executor.test.ts -t "releases
only a fresh claim"` fails with "releaseUnstartedNativeExecutionClaim
... Number of calls: 0".
- Green after the fix, with the same command.
- `npx vitest run
src/services/native-runtime/native-session-executor.test.ts
src/services/native-runtime/native-failed-workspace-recovery.test.ts
src/services/native-runtime/native-execution-lease.test.ts
src/services/execution-control-reconciliation.test.ts` passes (embedded
Postgres for the retention test).
- `pnpm --filter @paperclipai/server typecheck` passes.
- Not done: a live run against a real sandbox at this revision. The
staging evidence is read-only.

## Risks

- The release is fenced by the exact owner, attempt, `observed` phase
and no result. Renewal stops before the release, so a renewal cannot see
a missing owner and detach or cancel the run.
- The fix covers failures inside task preparation only. Failures later
in startup, or after a restart-recovery claim expires, still reach the
watchdog. Those keep fail-closed behavior and need separate evidence.
- If the release write fails, the run keeps the old watchdog path.

> For core feature work, check [`ROADMAP.md`](ROADMAP.md) first and
discuss it in `#dev` before opening the PR. Feature PRs that overlap
with planned core work may need to be redirected — check the roadmap
first. See `CONTRIBUTING.md`.

## Model Used

- Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, with tool use and code
execution in Claude Code.

## 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

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

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-04 18:25:36 -06:00
Nicky LeachandPaperclip f8a888a072 feat(runner): define bounded startup lifetime contracts (#18490)
## Thinking Path

> - Paperclip manages AI agents and their work.
> - Native sessions and plugin workers have separate startup lifetimes.
> - A caller timeout does not prove that a worker or an accepted host
write has stopped.
> - Shared startup code needs an exact deadline and an actual settlement
contract.
> - This PR adds those contracts and tests them before any production
caller uses them.
> - The dependent integration in #18405 will use the contracts with
verified cleanup.
> - This split lets reviewers assess the lifetime rules separately from
runtime activation.

## Linked Issues or Issue Description

Refs #18405. This PR extracts the foundation from that change. The
integration will depend on this PR.

**Problem or motivation**

A bounded startup must distinguish the caller's wait from actual worker
completion. A late worker reply or an accepted host request can outlive
the original RPC promise. A shorter timeout must not discard that
responsibility or authorize a replacement run.

**Proposed solution**

Add one Core execution context, optional Runner startup deadlines, and
worker settlement and retirement APIs. Test the contracts with real
child-process IPC. Keep production context creation, transport
projection, capability negotiation, durable cleanup, and Stop/recovery
integration in #18405.

**Alternatives considered**

One combined PR mixed the lifetime contract with its activation and
cleanup policy. Activating a shorter deadline before the complete
transport and cleanup path is unsafe. Splitting only the SDK
declarations would not provide a useful behavioral review boundary.

**Roadmap alignment**

This supports the existing plugin, sandbox execution, and bounded
recovery capabilities. It adds no new product workflow, endpoint,
migration, provider or runtime dependency.

## What Changed

- Add `NativeExecutionContext`. It retains the selected input, binds one
transport target, rejects work after cancellation or expiry, and tracks
actual worker settlement. Expiry alone does not complete pending work.
- Add worker startup groups. A caller timeout retains the group's
responsibility. Retirement revokes obsolete invocation scopes, waits for
accepted host handlers, and retires only the verified group's
bookkeeping. Each cleanup wait is bounded; an unfinished handler remains
pending for a later retry.
- Add an optional Runner startup signal and absolute deadline for
session open and retained attachment. Clean up abort listeners after
synchronous failures. Existing callers keep their default timeout path.
- Expose the remaining confirmed controller-lease budget without a new
query or renewal timer.
- Add optional SDK context and preparation-retirement fields. No
production bridge sends or advertises them in this slice.
- Keep the required lease mock update with the new `remainingMs()`
contract so this foundation typechecks independently.

Production activation files, including the native executor and
environment task bridge, match the current master base. No production
caller constructs `NativeExecutionContext` or passes the new Runner
startup option. This PR adds no durable cleanup producer and claims **no
standalone TTFT improvement**. The dependent integration must enable the
context, transport and verified cleanup together.

## Verification

Initial split verification on
`8ebc8a2f9c6c02e90f920356138b3742a4067b28`, based on
`9a3f395737e7a92faf99971459979061d423531a`:

- From `server`: `../node_modules/.bin/vitest run
src/services/native-runtime/native-execution-context.test.ts
src/services/native-runtime/native-execution-context-worker.test.ts
src/services/native-runtime/native-execution-lease.test.ts` — **17
passed**. Includes real child IPC, caller timeout with late reply,
worker death, accepted host-handler draining, obsolete cleanup
invocation rejection, unrelated work preservation, context scope,
expiry, and confirmed lease budget.
- From `packages/paperclip-runner`: `../../node_modules/.bin/vitest run
src/native-session-runtime.test.ts` — **188 passed**. Includes existing
callers without the new option and new
synchronous-failure/expired-deadline cases for fresh and retained
sessions.
- Direct TypeScript checks for `packages/plugins/sdk/tsconfig.json` and
`packages/paperclip-runner/tsconfig.json` — passed. Built only their
shared/eval TypeScript prerequisites.
- From `server`: `../node_modules/.bin/tsc --noEmit` — passed.
- Checked the partition against the reviewed combined candidate. The
twelve selected files match exactly. The thirteenth file carries only
the required test-mock update. The production executor, bridge and
target wiring remain equal to the base.
- `git diff --check`, added-line secret/private-data scan, and
added-code-comment scan — passed. No generated files or run artifacts
are committed.
- The first old-base split passed its focused tests but failed server
typechecking because the unchanged executor test mock lacked
`remainingMs()`. The original failure is retained. Moving that one-line
mock update into this foundation resolved the split dependency; the
final current-master checks above pass.
- Full local CI suites, Rust builds, deployments and provider calls were
not run, as requested. GitHub CI will provide full regression coverage.
Current-head GitHub CI, standard review and Apex are complete; exact
acceptance is recorded below.

Review follow-up `d7635f4d280dab757a3666703737bcda955c9361` fixes three
reproduced lifetime edge cases. A retiring startup group rejects new
calls and shares one retirement promise; failed bounded retirement
remains retryable. Transport identity uses a fixed field tuple rather
than object-property order. Finishing a context rejects pending lookup
waits without aborting an already-started backend or pretending the
worker completed. All three new regressions failed before the fix; the
updated foundation selection passes **20 tests**, including actual IPC
and failed-retirement retry. Server typechecking and added-line checks
pass. These replace the earlier 17-case selection, rather than adding 20
unique cases to it. The original failures and passing reruns are
retained.

Apex follow-up `cb8860bab5ab9d6357a352e11f276be0d0cdb26d` keeps removed
worker handles reachable while they own startup calls, accepted host
handlers or retirement work. Drain/retirement includes active and
retained handles; completion callbacks remove settled handles. Stop and
replacement remove only the exact handle they observed. This adds no
database/network operation, polling loop or generic shutdown wait. The
SDK, Runner, context and transport bridge are unchanged.

Seven additional IPC regressions failed on the prior manager and pass
after the fix, covering removal/replacement, Stop-all, host-handler
settlement, bounded retirement failure/retry, pruning, and replacement
ownership. The updated foundation selection passes **27 tests**, with
server typechecking passing; these supersede the earlier 20-case
selection. A separate real-PostgreSQL/child-IPC characterization uses
the integration's actual SDK host, storage registry and run-control path
with the exact corrected manager bytes. Before the fix, cleanup released
run ownership while an accepted host write was blocked, then the late
write restored obsolete metadata. After the fix, ownership and cleanup
remain pending until the write completes; cleanup then removes the stale
metadata before releasing ownership. The original failure, corrected
result and source snapshots are preserved. Final head
`cb8860bab5ab9d6357a352e11f276be0d0cdb26d` passes GitHub CI (53
successful checks, 2 expected skips, Snyk success), standard Greptile
**5/5** and fresh Apex **5/5**. All review threads are resolved and the
PR is conflict-free.

## Risks

The shared Runner helper now observes synchronous operation failures
through its asynchronous cleanup path. The affected runtime file's 188
tests pass, but full regression coverage still depends on CI.

The new lifetime APIs require honest settlement signals. A future caller
must not treat a deadline, worker crash or Stop intent as verified
retirement. Production activation remains dependent on the complete
integration and its cleanup tests in #18405. This foundation introduces
no shorter production startup budget or new cleanup policy by itself.

The context's transport projection is process-local. It must not be
persisted or used as a general authorization cache. No production caller
supplies it in this PR. There is no database migration, new dependency,
or deployment requirement for merging this foundation.

## Model Used

OpenAI Codex, based on GPT-6, assisted with repository inspection, the
split, tests and command execution. The exact serving model ID and
context-window size were 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 and contains no internal issue
identifier
- [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 — this
description documents the inactive contracts; operational activation
documentation remains with #18405
- [x] I have considered and documented any risks above
- [x] All Paperclip CI gates are green on `cb8860bab5`
- [x] Current-head standard Greptile and Apex are 5/5 with no unresolved
findings
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>
2026-11-02 08:22:42 -08:00
DottaandPaperclip 9ca9af544a Drive remaining live run and resource recovery from durable work (#18419)
Reviewed and verified at 6a4c193906.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-10-31 16:00:35 -05:00
DottaandPaperclip 5e4cc01073 feat(workspaces): keep remote files off the webserver disk (#18403)
Keep native sandbox workspace files independent of the webserver disk. Use encrypted saved versions and Postgres ownership so a replacement server can recover files and continue work. Enable the path by default for new eligible workspaces when durable storage is configured.

Preserve explicit opt-outs and existing host workspaces. Include safe snapshot repair, Files access, import, migration and retention. Bound saved-Files resources, preserve imported Git recovery, reject unfinished Git operations, publish immutable concurrent captures, and verify permanent object-version deletion.

Validated 471 targeted local controls, build/typechecks, all 40 CI partitions, fresh Greptile 5/5 and security review. The PR records original failed attempts and scoped retries.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-10-31 14:54:01 -05:00
DottaandPaperclip 09ad9adce2 feat(server): adopt running remote agents through durable controller checkpoints (#17439)
## Thinking Path

> - Paperclip must keep admitted remote work alive while its main server
is replaced.
> - Runner owns recovery mechanics and exposes opaque checkpoints
through #17097.
> - The server owns company scope, encryption, Stop, tool authority and
execution ownership.
> - A successor must prove current ownership before it adopts the
original execution.
> - Checkpoint bursts must also leave capacity for normal requests and
lease renewal.
> - This PR persists and adopts that authority through the existing
runtime boundaries.

## Linked Issues or Issue Description

**What existing behavior does this improve?**

Remote agents retain the original execution during a bounded main-server
outage.

**Current behavior**

A server restart can lose the controller's local state and connection.
An unsafe replacement could repeat a turn or an uncertain mutation.
Checkpoint writes in the request pool can also delay ordinary requests
during an aligned burst.

**Proposed behavior**

Restore encrypted control records from Postgres and adopt the original
runner under a fenced lease. Recover known tool receipts through current
tool authority. Give control checkpoints a shared pool capped at two
connections per database owner.

Depends on #17097. Successors are #17455 and #17456. Qualification and
presentation remain separate review slices.

## What Changed

- Add company/run-bound encrypted checkpoint records and migration 0394.
Keep the SQL idempotent after renumbering against current master.
- Recover startup and expired ownership through native runtime and
heartbeat. Preserve the sandbox lease, admitted runner artifact, harness
configuration, native session and active turn.
- Keep Stop, finalization, preparation ownership and stale-writer
fencing transactional. Preserve graceful detach and natural crash
takeover.
- Recover committed tool receipts through the existing authority.
Reauthorize reads and hold uncertain mutations.
- Bound startup retention with the existing coordinator and preserve
zero idle scans.
- Share at most two checkpoint connections per database client. Keep
application and liveness capacity separate. Close the checkpoint pool
during shutdown; late writes cannot reopen it.
- Count SQL across both application and checkpoint clients. Prove
request/liveness progress, command recovery and failure after pool
shutdown with real Postgres.

## Verification

Project creation recovery now uses the existing project activity receipt
owner. It retains authenticated input normalization, fingerprint checks
and current run authority after the receipt lock. An absent receipt
returns no result before mutation. The new lost-HTTP-response and
no-effect regression uses real API routes and Postgres. The seven
transport cases pass locally. This Mac skips all 20 database cases. On
current source `5de803c2cd`, Linux [job
122593415890](https://github.com/paperclipai/paperclip/actions/runs/40620576702/job/122593415890)
executes all 20 project-tool cases successfully (9.480 seconds),
including the committed-project lost-response regression. Its shard
passes 1,627 cases with three unrelated skips. Server typecheck passes.
The transport regression initially has two failures; a subsequent
incorrect expectation about schema defaults was corrected before the
final pass. Ordinary execution adds no checkpoint writes or recurring
work.

Current candidate `5de803c2cd` includes the project-creation receipt
recovery fix and master `2cd747d1b6`. Migration 0394 retains the prior
idempotent checkpoint DDL. Every master SQL file and journal entry is
preserved. Snapshots 0390–0394, migration checks and server typecheck
pass.

The ordinary warm-turn regression fails on its second turn before
`a219ab51ad`. After correction, three completed warm turns select the
correct prior checkpoint and preserve the original session. All 288
provider-wiring cases pass. The control plane, external persistence
callback, identity rotation and filesystem are real; the backend and
database-load seam are scripted. The 13 warm admission/configuration
variants also pass after final master integration. This does not qualify
an underlying harness.

At current source `5de803c2cd`, Linux [job
122593415907](https://github.com/paperclipai/paperclip/actions/runs/40620576702/job/122593415907)
passes all 940 native-session-executor cases (61.431 seconds), including
the warm external-checkpoint behavior; the shard passes 2,358 cases with
one skip. Current [Runner job
122593415475](https://github.com/paperclipai/paperclip/actions/runs/40620576702/job/122593415475)
passes the native recovery lane: 115 passes and five container-only
skips, including the encrypted restore guard, fresh preparation (63.189
seconds), blocked claim lock (1.226 seconds) and recovery beyond 101
blocked owners (3.897 seconds). The first lane passes 2,215 cases with
one skip. The SQL cost test reports zero idle and streaming SQL for both
output volumes; this is component evidence, not a production capacity
claim. At prior candidate `1ff7bb44f4`, Linux job 122549307215 passes
all 938 native-executor cases, including the three-turn
external-checkpoint regression. Job 122549306469 passes the native
recovery lane with 115 passes and five container-only skips, including
the encrypted-restore session guard, fresh preparation (63.664 seconds),
claim-lock contention (3.961 seconds), and 101-owner recovery (3.824
seconds). This Mac skips the real-Postgres suite. The earlier full local
executor attempt has 921 passes and 16 failures during embedded-Postgres
initialization before assertions. The original fixture collisions and
their corrections remain recorded.

At earlier candidate `8fbe62b41d`, server shard job 122535673841 has
3,876 passes, one failure and one skip in an unchanged expiry-worker
retry/drain timing test. The same server/database tree on qualification
source `b64cac6951` passes all 20 expiry cases and all 3,877 shard
cases. The single diagnostic retry, job 122541891915, passes all 20
expiry cases and all 3,877 shard cases (one skip). No assertion was
weakened. The original failure remains recorded and its exact timing
race is not proven. All Actions checks and legacy status passed on
`8fbe62b41d`, with completed Greptile 5/5 and no open feedback. The next
candidate `1ff7bb44f4` also passed all Actions checks and Greptile 5/5.
Its Paperclip Review remained queued before the new master conflict
required integration. The new candidate needs fresh exact-head CI and
reviews; old checks do not qualify it. Migration generation is
checkpoint-only, all master SQL and journal entries remain unchanged,
and migration checks, server typecheck and all 13 warm-owner variants
pass after integration. The first migration check was blocked by TSX
sandbox IPC; its permitted repeat passes. The first warm-test command
used an incorrect path and ran no tests; the corrected command supplies
the 13-case receipt.

All 16 database pool-lifetime/options/teardown cases pass after granting
loopback permission; the first batch had two EPERM failures and 14
passes. Earlier semantic-tool/HTTP recovery, adoption, encryption-batch,
zero-streaming-write and idle-SQL receipts remain source-attributed in
the [qualification
record](https://github.com/paperclipai/paperclip/blob/2ff66f57da0da35bac1c19a2366ea4b84d87a986/doc/plans/2026-10-22-hot-upgrade-qualification.md).
That record retains earlier assertion, setup and cleanup failures and
their corrections. No failed gate is waived.

The historical 300-session component campaign passes four after phases:
steady read p99 is 107–108 ms at 500 reads/s and 100 writes/s;
aligned-burst read p99 is 103–105 ms after the bounded pool, versus
584–689 ms before. This comparison isolates the persistence corrections.
It does not measure the final stack's hosted active-agent capacity. The
hosted zero-agent API pair leaves SQL and CPU essentially unchanged, but
both arms fail absolute latency gates and candidate peak cgroup memory
fails its gate. The active-agent/viewer matrix, different-artifact
upgrade and rollback remain open.

Run `PAPERCLIP_TEST_DATABASE_URL=<owned-disposable-postgres> pnpm
--filter @paperclipai/server exec vitest run
src/services/native-runtime/native-runner-restart-recovery.integration.test.ts`.

Previous head `f2db8a6568` had one failed workspace setup gate: [job
122555672441](https://github.com/paperclipai/paperclip/actions/runs/40608984238/job/122555672441)
passes all 4,169 UI tests and 285 CLI cases (one skip), but the company
import/export suite reaches its 30-second health deadline during doctor
startup. Its output does not reach the server-start step. The CLI,
server, database, shared, adapter and plugin trees are identical on
qualification source `a866619d7b`, whose [job
122555886663](https://github.com/paperclipai/paperclip/actions/runs/40609057937/job/122555886663)
passes that fixture and all 286 CLI cases. The one diagnostic retry,
[job
122561057225](https://github.com/paperclipai/paperclip/actions/runs/40608984238/job/122561057225),
passes the formerly failing fixture and all 286 CLI cases. All Actions
checks and legacy status on `f2db8a6568` pass. Its exact-head Greptile
completed at 5/5 with no open feedback. The current integrated head
requires fresh checks and a completed Paperclip Review before merge. The
original failure remains recorded; its exact timing cause is unproven. A
repeated failure requires investigation and repair rather than another
retry.

All current-head CI, legacy status, exact-head completed Greptile 5/5,
resolved feedback and ordinary GitHub merge eligibility remain required
before merge.

The latest integration preserves master’s published Copilot v70 profiles
and every published migration. Checkpoint migration
`0394_conscious_whizzer.sql` was generated with `pnpm db:generate` and
retains the prior idempotent DDL. The Runner vendor rebuild and replay
parity checks pass. Server typecheck and all 13 warm-owner variants pass
after that rebuild. The imported report-lock patch is byte-identical to
master; its intentional patch-context whitespace is retained, and the
feature delta passes whitespace checks. No hosted experiment was run.

## Risks

The pool adds up to two active connections per instance, shared across
agents. Checkpoint delivery can wait behind that bound; it still
requires its commit. Steady component-test Postgres CPU rises by about
1.7 percentage points of a two-CPU allocation. These corrections do not
remove the stack's control and renewal writes. The migration and key
must survive replacement. Fresh-database tests and local load do not
establish different-artifact hosted upgrade or rollback continuity.

## Model Used

OpenAI GPT-6 through Codex, with reasoning, repository tools and code
execution. The runtime does not expose a more specific model ID or
context-window size.

## 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
- [ ] 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

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>
2026-10-27 21:39:23 -05:00