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## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - A cancelled native run may still owe preservation of prepared workspace files. > - The existing recovery receipt and source lease record that obligation. > - The orphan reaper still searches for these cancellations on every pass. > - This PR registers committed cancellations with the shared deadline worker. > - The existing retention owner keeps file pinning and ownership checks. > - Idle and completed history no longer causes this preservation scan. ## Linked Issues or Issue Description Refs #17674 and #17145. Stopped instruction collection is merged into master. It owns file-preservation discovery only. The existing environment cleanup worker continues to own stop-only teardown. **What needs to be improved?** `preserveCancelledNativeWorkspaces` runs from every orphan-reaper pass. It queries even when no cancelled native workspace needs a file-recovery hold. Current foreground Stop can also defer retention after a lock or database failure, so startup-only recovery would be insufficient. **Why is this improvement important?** Empty queries keep idle tenants active. Removing them must not lose user files, weaken Stop ownership, replay cancelled work, or turn a retained allocation into destructive cleanup. **Proposed solution** Register the existing durable obligation from committed run-status, cancellation-acknowledgement and workspace-reference writes. Reconstruct it at startup. Keep retries while actual preservation remains unresolved. Disarm after the existing owner records the hold. Related-PR search and ROADMAP.md review found no duplicate of this scheduling migration. ## What Changed - Add a company/run-scoped preservation worker with 100-row keyset reconstruction and fair batches of five. - Separate pending file debt from immediate coordinator/lease readiness. Retain a 30-second retry for known unfinished preservation and shared failure backoff for errors. - Signal the existing status, acknowledgement, workspace-reference, deletion and settings transactions. Add no table or independent timer. - Keep exact source checks, no-workspace contracts, task/coordinator/run lock order, retention receipt and no-replay recovery card with their owners. - Recheck cancellation acknowledgement, run status and coordinator phase under the retention locks. Preserve the existing foreground preterminal API. - Keep startup/manual recovery; skip only this duty in periodic reaping. Preserve drain/standby and shutdown behavior. - Add concurrent, replay-safe partial index migration 0409 and retain the five newest snapshots. - Add the producer and lifecycle audit in `doc/plans/2026-10-25-cancelled-workspace-preservation-sleep-audit.md`. ## Verification - Current source `21b46a8e4293ca670235117458b984493a181759`: all 1472 cases in 16 complete files pass without skips. The owner passes 84 cases in 14.93 seconds. Fifteen consumer files pass 1388 cases in 133.46 seconds, including all 968 native-session cases and Stop, dispatch, restart, workspace-sync and upgrade-readiness coverage. - Twelve separate fresh PostgreSQL 17 databases migrated through 0409 before setup. The embedded-only lifecycle fixture temporarily used its own external database on this IPC-exhausted host and was restored byte for byte. Assertions and timing limits stayed unchanged. This qualifies external-database behavior; it does not claim an unmodified embedded CI run. - Database build, server typecheck/build, module boundaries and exact-head migration order pass. The complete original runtime/schema patch and unrelated current-parent blobs are preserved. Original concurrent index SQL, all earlier executable history and retained snapshot bytes are unchanged; five snapshots 0405 through 0409 remain. - A populated 0408-to0409 upgrade preserves all 407 prior receipts and 38 companies. Exactly one receipt is appended; replay adds none. The preservation index is valid and ready on fresh and upgraded databases. - Actual parent `82529741418e138d9d623bf13d2fa22c1ff79d36` is merged through a normal ancestry reconciliation. Its complete tree equals the reviewed parent. The entire accepted child tree and all source hashes are preserved. The audit retains earlier failures, qualifications and per-file counts. Published head `b34f0589847f33754ecde9413fd36bf007353d2c` has Greptile 5/5 and all 57 checks passing or skipped. No Ponytail review is present. These checks do not establish deployed host/database suspension or Cloud alarm delivery. ## Risks - Signals cover instrumented single-process writers. Independent SQL writers and additional replicas need integration. - Status signals may inspect a run without relevant file debt once. They do not create recurring work. Discovery and memory still scale with actual candidates. - Missing ownership or stop evidence remains pending. Active retries are intentional while a concrete file obligation is unresolved. - Retry timing is process-local; startup reconstructs durable debt. The worker does not overwrite another native-finalizer deadline. - Admitted database operations may finish after drain begins. Shutdown joins them. Provider teardown remains with the existing cleanup owner. - The partial index adds storage and write cost. Its concurrent migration uses the existing interrupted-index repair path. - Cloud alarm coverage, sleep eligibility and host suspension are unchanged. This proves worker behavior, not fleet savings. ## Model Used OpenAI Codex, GPT-6 family, with reasoning, shell tools, and PostgreSQL tests. The runtime does not expose a more precise model ID or context-window size for this turn. ## 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>