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DottaandClaude Opus 5.5
86afc2048b
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Native Runner per-turn sessions in a remote sandbox keep one conversation across task turns. > - Before a follow-up starts a new Runner, it must prove that the previous owner's controller stopped. #18846 added a retirement path for this proof. > - The native controller runs inside the webserver process. Thus the owner's recorded controller PID is the PID of the webserver. > - When the same server process serves the follow-up, that PID is alive and has the same start time. The proof reads this as "controller still alive" and refuses. The follow-up then fails with `runner_state_identity_mismatch: prior_owner_terminal_state_indeterminate`. This continues until a deploy replaces the process. > - This pull request uses the controller's per-process boot identity to recognize that this process recorded the owner. The process then uses its own session registry to prove that the owner's controller stopped. > - The benefit is that follow-ups on a long-lived server no longer fail before provider work. All other ownership fences stay as they are. ## Linked Issues or Issue Description Refs #18846 (retirement of recovered per-turn owners). Refs #19061 (names the refused retirement proof). The two changes are compatible. Whichever merges second needs a small rebase in `retireFinishedPerTurnRunnerdOwner`. **What happened?** On a test deployment, 17 runs over 14 tasks failed before provider work with `runner_state_identity_mismatch: prior_owner_terminal_state_indeterminate`. Each run had a per-turn lifecycle in a Daytona sandbox and got a new sandbox. In each inspected case, the previous run on the task succeeded and committed its result. Its run profile had no `nativeControllerRecovery` pointer. Without that pointer, `evaluateNativeControllerTakeover` is not lease-fenced, so it uses process liveness. The recorded `controllerPid` is `process.pid` of the webserver. When the follow-up is served in the same process, `process.kill(pid, 0)` succeeds and the start time matches. The result is `controller_still_alive`, and retirement refuses. **Expected behavior** A committed owner that this server process finished, released, and no longer runs is proven stopped. The follow-up then starts a new Runner, as #18846 intended. **Steps to reproduce** 1. Seed a per-turn sandbox owner that committed its result and released its lease. Record this process's controller identity (`currentNativeControllerIdentity()`) as the owner. 2. Keep the owner's file-backed journal in the local session root, and remove the database recovery pointer. 3. Admit a follow-up in a new sandbox. 4. Before this change, admission fails with `prior_owner_terminal_state_indeterminate`. **Paperclip version or commit** Observed on `e107a75755`. The same code is on `master`. ## What Changed - `native-restart-recovery.ts`: add `isCurrentNativeControllerProcess(owner)`. It is true only when the owner's `controllerBootId` is this process's per-start boot UUID and `controllerPid === process.pid`. A recycled PID or another container never matches. - `retireFinishedPerTurnRunnerdOwner`: when the owner was finished in this process and no `activeNativeSessions` or `nativeSessionStartups` entry exists for its run, treat its controller as stopped. Otherwise, use `evaluateNativeControllerTakeover` as before. The same in-process check runs again just before the archive. - All other retirement proofs are unchanged: committed result, released lease, no recovery state, settled journal, answered tool inputs, quarantine copies, and new or replacement sandbox. - `native-recovered-owner-followup.test.ts`: the seed helper accepts the owner's controller identity. New cases cover same-process admission (with and without a recovery pointer), an exited legacy controller, another live controller, and the same PID with a different boot identity. - `doc/execution-semantics.md`: describe the same-process stopped-controller proof. ## Verification - **Failure before the change:** with only the new tests applied, `cd server && npx vitest run src/services/native-runtime/native-recovered-owner-followup.test.ts` fails 1 case: "admits a follow-up in the process that finished the owner: local journal only". It expected admission and received `runner_state_identity_mismatch: prior_owner_terminal_state_indeterminate`, the exact error from the deployment. The safety cases already passed on the old code. - **After the change:** the same file passes 27 of 27. - Adjacent suites: `native-recovered-owner-followup`, `remote-warm-session-recovery`, `native-runner-restart-recovery.integration`, `native-restart-recovery`, `native-session-resume`: 210 passed, 20 skipped. - `native-session-executor.test.ts`: 1128 passed. - `tsc --noEmit -p server/tsconfig.json`: no errors. - **Not verified live:** this change has not run on a deployment. Run data came from read-only API calls only. No recovery was done on the deployment. ## Risks - **Second executor.** The new proof applies only when this exact process recorded the owner, and this process has no session or startup for that run. The database proofs still require a committed result and a released lease. Another live controller, or the same PID with a different boot identity, still holds the owner. Tests cover both cases. - **Scope.** The change applies only to the per-turn retirement path. The warm remote recovery path (`inspectRemoteWarmSessionRecovery`) is not changed. Warm handoff in the same process uses the in-memory idle owner instead. - **Hypothesis limit.** The deployment API does not expose finalization rows. Thus I inferred that the same process served each follow-up from the evidence: no recovery pointer, a local journal present, and no other failing proof. The local reproduction gives the exact error. #19061 can confirm the refused fence on the deployment. ## Model Used - Claude Opus 5.5 (`claude-opus-5-5`), Anthropic. Agentic coding in Claude Code with tool use (shell, browser for read-only staging API reads, code execution). ## 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>