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DottaandClaude Opus 5.5
0189fedffc
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - A warm runner (`lifecycleMode: warm`) keeps runnerd alive between runs so a follow-up turn starts fast. The follow-up default flip (next PR) makes warm the default for local Codex and OpenCode agents. > - The controller owns a warm runner's idle window. Runnerd ignores the idle timeout itself. > - A graceful controller shutdown suspends idle warm sessions. A controller that dies (SIGKILL, crash) does not. Local runners launch with no process reconnect grace, so the idle runner kept running until its 1-hour connection lease ran out, owned by nobody. > - This pull request gives warm local runners the 7-minute reconnect grace that remote runners already use. > - The benefit: idle runners are reaped by proof within a bounded time, never left orphaned, before warm becomes the default. ## Linked Issues or Issue Description Refs #19874 (warm completion contract), #19846 (TTFT baseline), #19852. **What existing behavior does this improve?** Ownership of an idle warm local runner after its controller dies. **Current behavior** `runnerProcessReconnectGraceMs` is `undefined` for local targets, so runnerd launches without `--reconnect-grace-ms`. An idle warm runner whose controller was killed stays alive until its connection lease (one hour) expires. The restart-chaos harness cannot show this: its K1 kills the controller's whole process tree, runner included. **Proposed behavior** `localRunnerProcessReconnectGraceMs(policy)` returns the remote grace (7 minutes) for a warm policy and `undefined` for per-turn. After the grace, runnerd records `transport_reconnect_grace_exceeded`, stops its provider, keeps durable state and exits. The next run resumes cold. **Reason and benefit** The restart plan requires idle runners to be reaped by proof, never orphaned. Seven minutes is far longer than a controller restart (13–20 s locally) and the long-outage fault holds (3–5 minutes), so a live turn still reattaches. ## What Changed - `native-runner-recovery-contract.ts`: `localRunnerProcessReconnectGraceMs`. - `native-session-executor.ts`: the local runnerd transport passes it as `runnerProcessReconnectGraceMs`. Remote targets keep `null` (lease-owned). - `runnerd-warm-idle-orphan.test.ts` (new): real runnerd and fake Codex. An idle warm runner, after its turn completed, whose controller detaches. - `doc/DEVELOPING.md`: the grace and its bound. ## Verification - `pnpm --filter @paperclipai/paperclip-runner exec vitest run src/live/runnerd-warm-idle-orphan.test.ts`: with a process grace, the idle runner exits with `transport_reconnect_grace_exceeded` and the next transport resumes the same provider session cold. With no grace (`null`, today's local launch), the runner is still alive after the controller left. - `cd server && npx vitest run src/services/native-runtime/native-runner-recovery-contract.test.ts`: warm gets the remote grace; per-turn keeps none; the grace outlasts a controller restart and a long outage. - `tsc --noEmit` passes for `server` and `packages/paperclip-runner`. - Local restart measurement with warm runners (K1/K2, codex, claude, opencode, n = 3 each): every interrupted run recovered, with recovery latency equal or lower than per-turn. The chaos waves with this change are in the default-flip PR. ## Risks - A warm local runner whose controller stays down for more than 7 minutes exits. A turn in progress then resumes through `resume_dead_runner`, the same path as a controller crash that kills the runner. Remote runners already behave this way. - Previous-release story (`rules/upgrade-safe-run-state.mdc`): no persisted state changes. A warm runner launched by the previous release keeps the launch arguments it started with (no grace) until it exits. > 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 - Anthropic Claude Opus 5.5 (`claude-opus-5-5`) in Claude Code, with tool use (shell, file edit, test 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>