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DottaandClaude Opus 5.5
940d681974
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work > - Native runner runs keep a provider session per task. When a run stops, its session close continues in the server process > - The runner refuses every new session of the task until that close settles. A close that cannot prove the old runner suspended needs a stopped-process proof before it is released > - A reassignment stops the old assignee's run mid-turn. The new assignee's run was dispatched one second later into that gate, and it failed with `native_session_cleanup_quarantined` > - Only a Retry continued the task. Recovery must work without a person, and the needed-retry rate must be 0% > - This pull request keeps such a run queued until the close settles or its old owner is proven stopped > - The benefit is that the new run starts by itself after cleanup, without a failed run or a Retry ## Linked Issues or Issue Description **What happened?** In the paid chat eval `tasks.edit-properties` (and `tasks.assignment-conflict` in an earlier cohort), the CEO reassigned a task while the old assignee's native run was mid-turn, with a Paperclip tool call in flight. The reassignment cancelled that run. Its session close then failed with `native_session_close_unrecoverable: runner did not durably suspend before checkpoint`, and the runner kept an operator-required cleanup gate for the task. The new assignee's run had started 1 second after the cancel. The runner's admission waited for the in-flight close. When the close escalated, admission refused the run with `native_session_cleanup_quarantined`. No run was queued again. **Steps to reproduce** 1. Run a native task and stop its run while its session close cannot settle at once. 2. Queue a run of another agent for the same task. 3. The run is dispatched into the cleanup gate and fails before it launches. **Expected behavior** The run waits for the cleanup, and starts once the close settles or the old owner is proven stopped. It never fails, and no Retry is needed. ## What Changed - `server/src/services/native-runtime/native-cleanup-admission-hold.ts`: `nativeCleanupHoldsAdmission` reads the task's cleanup gate. For an operator-required gate it first tries `retireStoppedSessionCleanupGates`, which retires the gate when the old owner's runner and provider processes are proven stopped. This is the same proof that Retry uses. - `server/src/services/heartbeat/queue.ts`: `claimQueuedRun` keeps an unstarted `paperclip_runner` run queued while its task has a settling or unproven close. This matches the existing `predecessor_settling_in_process` hold, which covers only the same agent. A reassignment changes the agent. - `server/src/services/native-runtime/native-cleanup-release-wake.ts`: a released close now also wakes queued-run dispatch. A close that escalates to operator-required also wakes it, so admission tries the stopped-process proof at once. The queued-run liveness redrive covers any later proof. - `server/src/__tests__/heartbeat-native-cleanup-admission-hold.test.ts`: an assembled heartbeat test. It is red on master (the run is claimed into a pending close and into an operator-required close). It is green here (the run stays queued, then is admitted after the close settles). A control case shows that a run for another task is not held. ## Verification - `cd server && npx vitest run src/__tests__/heartbeat-native-cleanup-admission-hold.test.ts` (3 passed; 2 red on master) - `cd server && npx vitest run src/services/quarantined-task-retry.test.ts src/services/heartbeat/queue.test.ts src/__tests__/heartbeat-workspace-busy.test.ts src/services/queued-run-dispatch-liveness.test.ts` (180 passed) - `cd server && npx tsc --noEmit` passes. - Paid E2E run on a combined branch: https://github.com/paperclipai/paperclip/actions/runs/43161593494 (results in a comment below). ## Risks - A run whose task has an operator-required gate that is never proven stopped now stays queued instead of failing. Before, that run failed, and Retry was blocked by the same proof. The liveness redrive re-checks it with back-off. - The hold applies only to unstarted `paperclip_runner` runs of the gated task. Other tasks and agents are not affected. - Previous-release saved state: no persisted shape changes. The gate lives in process memory, and runs saved by the previous release are claimed by the same rule. ## 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>