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Nicky LeachandPaperclip
2e3cbe57a4
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Native execution parks a released sandbox Runner for a later turn. > - The warm idle timer detaches Core and leaves Runner retention to the host. > - Controller shutdown instead stops recently parked Runners through checkpoint cleanup. > - This makes reuse depend on whether the idle timer fired before shutdown. > - This pull request uses the same detach operation for idle expiry and shutdown. > - The benefit is consistent Runner retention without a new retention or recovery mechanism. ## Linked Issues or Issue Description Fixes: #20012. Related: #20005 unified cached and adopted process reuse. Closed #19975 included this shutdown change within a broader retention proposal. ## What Changed - Detach confirmed released entries during controller shutdown. Keep busy, unreleased, and close-marked entries on the existing cleanup path. - Share the detach operation with idle expiry and cached-owner handoff. - Record that a local handle has started detaching. Later cleanup cannot fall back to stopping its Runner after a partial detach failure. - Preserve explicit environment deletion, release proof, admission, and process-reuse checks. - Add Codex and Claude restart, detach-failure, and environment-deletion regressions. Add real Runner adoption cases after the restart sweep, including managed GitHub rebinding. - Document the lifetime rule and make the shutdown warning cover both detach and checkpoint failures. ## Verification - Final source revision: `e4bb6ecbd7`. Local environment: macOS arm64, Node 26.12.0. - New controller-restart and detach-failure tests fail against unchanged master: 4 expected failures. Old shutdown calls close or reports success instead of reporting detach failure. - Focused executor tests: 22 passed. - Full native session executor suite: 1,328 passed. - `cd server && node scripts/typecheck-layers.mjs`: passed all source and test layers. - `node scripts/check-module-boundaries.mjs` and `git diff --check`: passed. - Manual diff review and added-line credential/PII scan: passed. - `cd server && node ../node_modules/vitest/vitest.mjs run src/services/native-runtime/plugin-runner-release-resume.integration.test.ts --bail=1 --reporter=verbose`: 14 passed on this revision. This includes new Codex and Claude restart cases and managed GitHub rebinding. - Failure history: an earlier concurrent run had 4 passes and 10 failures. Its first failure was the existing Claude cached case exceeding 60 seconds. Later cases encountered a leftover prototype spy, recursive calls, and startup timeouts. No source changed before the passing full rerun. A clean worktree of unchanged master (`e01fe7f84a`) passed all 11 original cases. The first timeout's exact cause remains unknown; the later pass does not establish that cause. - Standard Greptile review: 5/5 on `e4bb6ecbd7bd965b5f56507d2c42c580e8a1d547`, with no actionable findings. - `node scripts/local-verify.mjs --explain` returned exit 2 because the execution-semantics document requires broad CI. Required CI will supply broad typecheck, test, and build coverage. - A hosted deployment and an actual controller process replacement have not been run. The added integration cases exercise the shutdown sweep and a new adopting transport against a real Runner. ## Risks - SIGINT and SIGTERM preserve confirmed parked Runners, including ordinary service stops. The host still owns eviction and retention. - Detach failure retains a fenced local owner and reports failure. Core does not infer permission to stop the Runner from that failure. - Reuse remains conditional on current admission, process configuration, and host availability. - No persisted schema, checkpoint format, launch identity, or migration changes. State from the previous release uses the existing adoption or verified restore paths. ## Model Used - OpenAI Codex, GPT-6, with reasoning, repository inspection, tool use, and local test execution. The exact deployment identifier and context-window size are not exposed in this session. ## Checklist - [x] I have included a thinking path that traces from project context to this change - [x] I have specified the model used (with version and capability details) - [x] I have checked ROADMAP.md and confirmed this PR does not duplicate planned core work - [x] I have searched GitHub for duplicate or related PRs and linked them above - [x] I have either (a) linked existing issues with `Fixes: #` / `Closes #` / `Refs #` OR (b) described the issue in-PR following the relevant issue template - [x] I have not referenced internal/instance-local Paperclip issues or links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip` URLs) - [x] My branch name describes the change and contains no internal Paperclip ticket id or instance-derived details - [x] I have run tests locally and they pass - [x] I have added or updated tests where applicable - [x] I have updated relevant documentation to reflect my changes - [x] I have considered and documented any risks above - [x] All Paperclip CI gates are green - [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups - [x] I will address all Greptile and reviewer comments before requesting merge Co-authored-by: Paperclip <noreply@paperclip.ing>