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DottaandPaperclip
9e5039f6c8
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Remote agents use provider plugins to manage sandbox leases and duplex channels. > - The host verifies the exact route and session when a bound channel closes. > - Daytona lease teardown removed that binding before a later host close. > - The incomplete reply made the host retire the shared worker. A later command then failed during setup. > - This pull request retains bounded close receipts and joins the original cleanup. > - Later work can use the same worker while invalid or unconfirmed closes still fail closed. ## Linked Issues or Issue Description **What happened?** A normal lease teardown can close a duplex channel before the host closes its bound route. Daytona then replies with only the route ID. The host requires the original session ID too. It logs `duplex channel close not acknowledged; retiring worker`, stops the worker, and rejects a later `environmentExecute` call as stopped. **Expected behavior** A later close must identify the original route and session and join its existing cleanup. It must not revive the channel or restart the worker. Unknown ownership and an unconfirmed close must retain the existing failure behavior. **Steps to reproduce** 1. Acquire two leases through one Daytona provider worker. 2. Open a duplex channel on the first lease. 3. Release that lease, then close the bound channel through the host. 4. Execute a command on the second lease. **Paperclip version or commit** The real host/worker regression fails on `69dea878c0b920b335594debb0286443ba9f6c35`. This branch includes master `3a72efebe5b050e7594bb309e71a0d5f3072db00`. **Deployment mode** Managed Daytona sandbox execution in Cloud. The regression uses a local real host and SDK worker. Only the external Daytona SDK and PTY are simulated. Related work: Refs #19004, Refs #10429, Refs #18065, Refs #19050. These cover task Retry, managed worker startup, drain release, and stale provider sessions. ## What Changed - Retain at most 4096 retired route/session bindings with their original close promises. - Remove live channel authority before cleanup starts. Concurrent and later closes join the same promise and return the stored binding. - Reject reuse of a retained route ID. Keep unknown and evicted routes unable to provide a session acknowledgement. - Add a real child-process host/SDK-worker/Daytona regression with only the external Daytona SDK and PTY simulated. - Cover release, cancellation, stop, destroy, resume, a stalled close, concurrent closes, failed cleanup, forged IDs and bounded eviction. - Document close receipt scope and its separate provider-termination checks. ## Verification - RED before the repair: the actual host and SDK worker reproduced the retirement log, SIGKILL, stopped state, and later `environmentExecute` rejection. The direct provider cases also failed because the session ID was missing. - Combined-branch provider suite: 364 passed. - Combined-branch host manager, duplex, managed readiness and composed suites: 142 passed. The final test-only manifest-loading change passed all 6 composed cases again. - Full repository typecheck (`node scripts/typecheck-low-memory.mjs`), focused server types and the standalone Daytona build passed. The provider build uses pinned SDK `0.203.0` and TypeScript `5.9.3`. - The composed cases check the same worker/PID, one later command, preserved saved content, revoked channel writes/stops, and continued rejection of commands on closed leases. A stalled close still retires the worker and dispatches no later command. - Reproduce with `pnpm --dir server exec vitest run --config vitest.config.ts src/__tests__/plugin-worker-manager-daytona-close.test.ts` from a checkout with the SDK build dependencies prepared. Run the provider suite with its own Vitest config. - An initial local typecheck lacked the excluded providers' SDK links after an install with scripts disabled. The standard root postinstall linker restored those local links, and full typechecking then passed. The fixture loads its actual built manifest. Failed setup output is retained; no type configuration was relaxed. - The first two composed attempts stopped during fixture setup. They are not the behavioral RED above. Their failed outputs are retained. - The first broad local typecheck stopped at an IPC permission error during preflight. It passed after rerunning with allowed local IPC and the standard SDK links. - [Full repository CI](https://github.com/paperclipai/paperclip/actions/runs/41945022881) passed all 48 jobs on this head. Selection fell back to the complete task plan, so the run was unfiltered. The complete check inventory has 54 successes and two expected Storybook skips; the separate Snyk status passed. Fresh Greptile review on `daebbeb5005b9d9bd59d32ea30094279048b9213` is [5/5 with no actionable comments](https://github.com/paperclipai/paperclip/pull/19150#issuecomment-6646621914). Independent production and fixture review found no actionable findings. Hosted acceptance of this repair has not run. ## Risks - A receipt removed at the 4096-entry bound cannot confirm an old bound close. The existing host guard remains effective in that case. - Close acknowledgements identify channels. They do not certify remote process termination or clear unknown external work. Provider termination receipts and existing recovery gates remain in force. - Hosted evidence confirms the unacknowledged-close retirement class. The historical log does not distinguish a missing session ID from a timeout or another close error. The regression proves and repairs the missing-binding path; it also preserves timeout retirement. - The provider is outside the main pnpm workspace. A new Cloud image must compile its changed source. The unchanged plugin version alone does not prove activation. ## Model Used OpenAI Codex, GPT-6 family, with reasoning, source editing and tool execution. The exact model ID and context window 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 (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 --------- Co-authored-by: Paperclip <noreply@paperclip.ing>