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Commits
| Author | SHA1 | Message | Date | |
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 DottaandClaude
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c44a422607 |
fix(native): retry a follow-up whose own server stopped serving before its remote runner (#20786)
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work > - The native runtime runs each agent task through a Runner. On a graceful shutdown (SIGTERM), the server closes its runtime API listener first, then drains runs. > - A run that is still preparing can reach the runtime API lookup after the listener closed. It then fails with `local_runtime_api_listener_unavailable` before it reaches its Runner. > - For a remote (sandbox) Runner, the executor already settles this failure as a same-run bootstrap retry, so the next server restarts it with no manual Retry. > - A follow-up run is different. Admission rebinds the settled predecessor's provider session into the follow-up's run as its checkpoint. The recovery evidence saw "a checkpoint exists" and called the failure `ambiguous_state`. That blocked the task and the user had to click Retry. > - This pull request recognizes that carried checkpoint. When this server's own listener closed, the run has no Runner checkpoint and no provider event of its own, and a settled predecessor saved that exact provider session, the failure is a same-run bootstrap retry. > - The benefit is that a graceful restart during a follow-up's preparation no longer needs a manual Retry. ## Linked Issues or Issue Description **What happened?** In a Daytona restart-chaos wave (codex, remote sandbox Runner), a follow-up run was created. About 2 s later a graceful SIGTERM drain began. The draining server kept preparing the run. `resolveLocalRuntimeApiUrl()` in `createRunnerdBackendWithinSessionClaim` threw `LocalRuntimeApiListenerClosedError`. The run failed with `local_runtime_api_listener_unavailable`. The task went to `blocked` with a board-owned recovery action, and it needed a manual Retry. The manual Retry worked. **Expected behavior** No provider work started for the run. The next server must pick it up automatically. **Steps to reproduce** 1. Finish a remote native run for a task, so that its provider session is saved. 2. Comment on the task to start a follow-up run. The follow-up carries the saved provider session as its admission checkpoint. 3. Send SIGTERM while the follow-up is in preparation, before it reaches its Runner. 4. The follow-up fails with `ambiguous_state` and the task is blocked. **Paperclip version or commit** `master` at `62b7733161` (wave) and `eb75c9bb85` (this branch base). Refs #20514, #20721 ## What Changed - `native-session-executor.ts` (`nativeProviderRecoveryEvidence`): add one narrow case before the generic checks. When all of these are true, return `bootstrap_retry` (with `checkpointExists: true` and `providerSessionEstablished: false`): - the source failure is `local_runtime_api_listener_unavailable` (this server stopped serving); - the target is remote, the run has the current preparation fencing version, and the run has no Runner controller checkpoint; - the run has no provider event; - the run checkpoint has no cursor, turn, terminal, result, or pending request of its own; - a settled earlier run of the same native session saved that exact provider session. - `native-restart-recovery.ts`: export the existing `carriesSettledPredecessorSession` proof, so that the executor uses the same proof that restart recovery uses for rebound sessions. - `native-controller-recovery.integration.test.ts`: add a regression test. It also shows that the verdict stays `ambiguous_state` for a different failure code, for an unknown provider session, for a checkpoint with its own turn, and for a run with a provider event. ## Verification - Red on master: `cd server && npx vitest run src/services/native-runtime/native-controller-recovery.integration.test.ts -t "own server stopped serving"` returned `recoveryMode: "ambiguous_state", providerSessionEstablished: true`. - Green with the fix: the same file passes (25 tests). - `npx vitest run src/services/native-runtime/native-startup-retry.integration.test.ts src/services/native-runtime/native-runner-restart-preparation.integration.test.ts`: 43 passed (the existing closed-listener bootstrap-retry and ambiguous cases are unchanged). - `cd server && pnpm typecheck`: passed. - Not run: a live restart-chaos wave. ## Risks - Low risk. The new case applies only to the closed-listener failure on a remote target. It needs durable proof that the run has no Runner checkpoint and no provider event, and that the provider session belongs to a settled predecessor. All other cases keep their earlier verdict. - If the retry later finds different evidence, the existing restart recovery and resumption checks re-prove it and fail closed. The task then keeps a working Retry. - Upgrade safety: no persisted shape changes. The proof reads only rows that older servers already write (`sessionCheckpoint`, `nativePreparationFencingVersion`, Runner checkpoints, run events). A run that an older server prepared without the fencing version keeps its earlier verdict. - No waits are added before `turn.start`. The new queries run only on the failure path. ## Model Used - Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, with tool use and code execution in Claude Code. ## 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 <noreply@anthropic.com> |
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DottaandClaude Opus 5.5
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e3bc4ca798 |
fix(native): settle warm follow-ups that a restart left behind (#20631)
<!-- Write all pull request text in Simplified Technical English (ASD-STE100): short sentences, one instruction per sentence, simple approved vocabulary, and the active voice. --> ## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work > - Native warm runs on a remote sandbox continue the saved session of the previous run. Admission first proves what happened to the previous Runner. > - A deploy restarted the staging server while warm Runners were idle. Three follow-up runs then failed before provider work, each with a different refusal, and their tasks stayed blocked. > - The refusals asked for proof that a restart had made impossible. A restart is a product failure, so recovery must settle it automatically and keep the strict checks for real uncertainty. > - This pull request accepts the proof that the restart leaves behind, in three places: the warm owner on a replaced sandbox, the suspended Runner with an undelivered suspend receipt, and the restore hold of a run that saved nothing new. > - The benefit is that these follow-up runs start, and state saved by older releases carries forward without a migration. ## Linked Issues or Issue Description Refs #20567, #20346 **What happened?** On staging, a deploy replaced the webserver process at about 18:04 UTC on 2026-11-10 (lease controller boot `348ec0bb` on one deployment, then boot `3e84c195` on a new deployment that started at 18:04:16). Three runs of one Codex agent on Daytona failed between 18:08 and 18:15: 1. A warm follow-up got a newly created sandbox. The previous warm Runner stayed `ready` in its own retained sandbox. Live adoption denied it with `runner_state_identity_mismatch: prior_owner_terminal_state_indeterminate` (`remote-warm-session-recovery.ts:127`), because only a resumed sandbox may be adopted. The per-turn retirement path refused warm owners (`lifecycle_not_per_turn`). 2. A warm follow-up resumed the same sandbox and directory. The previous Runner had been suspended by the shutdown, but the controller stopped before it acknowledged the suspend result. The Runner kept its terminal fence (`pendingTerminalDelivery` for `runner.suspend`). The read refused it with `native_controller_recovery_missing_evidence:runner_not_settled` (`native-session-executor.ts:7032`). 3. A continuation into a fresh workspace failed with `remote_workspace_recovery_receipt_invalid` (`remote-workspace-recovery-attachments.ts:60`). Its predecessor had restored the committed save, failed before provider work, and kept a restore hold with no recovery receipt. Its saved reference named the snapshot it restored. **Expected behavior** After a restart, the next run continues. It retires a finished owner that nobody can adopt, reads a finished suspension, and skips a source that left no unsaved files. Real uncertainty still refuses with a named reason. **Steps to reproduce** 1. Run a warm native Codex turn on a reusable Daytona sandbox and let it commit. 2. Restart the server (deploy) while the Runner is idle. 3. Start the next turn. Get a new sandbox (case 1), or resume the same sandbox after the shutdown suspended the Runner (case 2). 4. For case 3, continue a task whose previous run restored the last save and failed before provider work, into a fresh workspace. **Paperclip version or commit** Staging before `2e3cbe57` (the runs predate that deploy). The gaps remain on `master` at `9b21dcbd`. ## What Changed - `inspectRemoteWarmSessionRecovery` returns `null` when this run's sandbox is `created` or `replacement`. Such a sandbox holds no Runner to adopt. The caller then uses ordinary admission. - `inspectFinishedPerTurnRunnerdOwner` also retires a **warm** owner on a remote sandbox runner when this run's sandbox is `created` or `replacement`. It uses all the existing proofs: terminal run, committed result, released coordinator lease, stopped or fenced controller, settled journal, and quarantine copies. Local warm Runners and resumed sandboxes keep the live path. - `restoreRemoteSuspendedRunnerCheckpoint` accepts a suspended Runner whose only open fence is its own undelivered `runner.suspend` receipt. The fence must name `runner.suspend` with lifecycle `suspended`, it must be the last controller command, and the restored journal must not name that command differently. A provider cleanup, unsent events, a turn's terminal fence or a warm transition still refuse with `runner_not_settled`. A later authorized Runner process reconciles the receipt, as the Runner already does. - `attachPreservedRemoteWorkspaceSnapshots` skips a source with a receipt-less restore hold when its saved reference names the exact committed snapshot that its own succeeded `remote_workspace_restore` loaded at the same epoch. Any other saved snapshot still needs the canonical receipt. - `doc/execution-semantics.md` describes the three rules. ## Verification - Red (unfixed code), each in the exact staging shape: - `native-recovered-owner-followup.test.ts` "retires a finished warm owner left behind by a restart when this run's sandbox is created/replacement" failed with `runner_state_identity_mismatch: prior_owner_terminal_state_indeterminate`. - `native-controller-recovery.integration.test.ts` "defers a remote warm continuation…" failed: live adoption rejected a created/replacement sandbox with the same error. - `native-controller-recovery.integration.test.ts` "reads a resumed sandbox's suspended Runner with an undelivered suspend receipt" failed with `native_controller_recovery_missing_evidence:runner_not_settled`. It reads through a sandbox runner that refuses paths outside the workspace base. - `workspace-recovery-preparation.test.ts` "decides a receipt-less restore hold of a source that restored_unchanged" failed with `remote_workspace_recovery_receipt_invalid`. - Green: the same tests pass. Focused files pass: `native-recovered-owner-followup.test.ts` and `native-controller-recovery.integration.test.ts` (104 tests), `workspace-recovery-preparation.test.ts` (85 tests). - Safety cases (strict checks stay strict): - A warm owner on a resumed sandbox is not retired. - A warm owner with an unsettled journal (pending command, unanswered tool input) stays held and names `retirement_refused=journal_…`. - A warm owner whose finalization lease is still held stays held. - A turn terminal fence, a provider cleanup, unsent events, a fence behind a later command, or a journal that names the command differently still fail with `runner_not_settled` and cache nothing. - A restore-hold source that saved another snapshot, whose restore did not succeed, or whose restore was at another epoch still fails with `remote_workspace_recovery_receipt_invalid`. - Neighbouring suites pass: `native-session-executor.test.ts`, `plugin-runner-release-resume.integration.test.ts`, `explicit-native-continuation.test.ts` and `native-harness-filesystem-independence-continuation.integration.test.ts` (1786 tests). The last one asserted the old warm refusal on a created sandbox. It now shows that the warm follow-up resumes the same provider session for the new run. - `npx tsc --noEmit -p server/tsconfig.json` passes. - `pnpm verify` returns exit 2, because a global doc input changed (`doc/execution-semantics.md`). Required CI supplies the broad coverage. ## Risks - Previous-release state: all three rules read state that earlier releases already save (lease outcome, coordinator rows, Runner state in the sandbox, journal commands, run results and workspace operations). Rows saved by older releases carry forward. No migration. - Case 1 starts a new Runner for a warm session whose old Runner may still exist, idle, in its retained sandbox. Its controller is gone and its result is committed, so it can accept no new commands. The provider session follows the existing resume-or-replace policy. - Case 2 trusts a suspend fence only in the exact shape that the Runner writes before it sends the result. Other fences still refuse. - After case 1, a warm follow-up resumes from its own warm checkpoint. That checkpoint carries no replacement policy, so a failed provider resume is still reported as `native_session_recovery_failed` and is not replaced. This is the existing warm behavior. - Case 3 skips a source only when it provably saved nothing beyond a committed snapshot. That snapshot stays in its own workspace. - The three tasks that already failed stay blocked until their next wake or a user message. This PR does not add an automatic continuation for a completed no-replay hold. A follow-up can add that. - `native-runner-restart-recovery.integration.test.ts` (runs only with a runner container) no longer probes a replacement sandbox, because that probe now retires the owner by design. - Not verified live on Daytona. > 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 - Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, via Claude Code with tool use (shell, file edits, read-only browser access to staging). Extended reasoning enabled. ## 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> |
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DottaandClaude Opus 5.5
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96ab5e3d38 |
fix(recovery): read a retained Runner from its own allocation and continue unverifiable no-replay holds from the last save (#20567)
<!-- Write all pull request text in Simplified Technical English (ASD-STE100): short sentences, one instruction per sentence, simple approved vocabulary, and the active voice. --> ## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work > - Native warm runs on a remote sandbox continue a saved session in the next run. The next run first reads the retained Runner lifecycle from the sandbox. > - #20346 abandons the workspace epoch of a run that died during preparation. The next run then restores the last save into a new directory of the same sandbox. > - The retained-sandbox binding check required the old and the new directory to be the same. The warm follow-up failed with `native_controller_recovery_missing_evidence:retained_sandbox_binding` before provider work. > - The failed run's no-replay hold then refused its files with `allocation_ownership_ambiguous`. The task stayed blocked. The text said that Retry "succeeds only after Paperclip is updated", so no click could help. > - This pull request binds the Runner read to the directory that the retained lease recorded, and lets the existing retained-source fallback settle these holds from the last save. > - The benefit is that a moved workspace continues its session, and a hold that cannot be verified continues automatically instead of dead-ending. ## Linked Issues or Issue Description Refs #20346 **What happened?** On staging, a warm native continuation ran about 10 minutes after a deploy. The run before it died during preparation (database deadlock), so its workspace epoch was abandoned. The continuation restored the last save into a new allocation directory of the same Daytona sandbox. It then failed with `native_controller_recovery_missing_evidence:retained_sandbox_binding`, because the retained lease of the committed source run recorded the old directory. The failure recorded a no-replay hold (`native_continuation_requires_reconciliation`, resolved with outcome `blocked`). Workspace recovery refused the source with `allocation_ownership_ambiguous`, because the sandbox's reusable-lease chain had predecessors in another directory and a non-native preparation-only run. The task stayed blocked with "Retry runs the check again and succeeds only after Paperclip is updated." **Expected behavior** The continuation reads the retained Runner state from the directory where that Runner wrote it, and continues. When retained files cannot be verified, the task continues from the last committed save without a person. **Steps to reproduce** 1. Run a warm native session on a reusable remote sandbox and let it commit. 2. Fail the next run during preparation, so that its epoch is abandoned (#20346). 3. Start the next warm continuation. It restores the last save into a new allocation directory and fails with `retained_sandbox_binding`. 4. See the hold refuse its source with `allocation_ownership_ambiguous` and stay blocked. **Paperclip version or commit** Staging `c874cfa4dacc` (includes #20346). ## What Changed - `assertNativeRetainedSandboxBinding` now returns the directory that the retained lease recorded. It accepts a different target directory only when both are canonical sibling allocations of the same execution workspace under the sandbox's `.paperclip-workspaces` (`<workspaceId>` or `<workspaceId>-<epoch>-<leaseId>`). Same sandbox (`providerLeaseId`), environment, run, issue and committed owner are still required. Other directories stay refused. - `restoreRemoteSuspendedRunnerCheckpoint` reads the Runner state from that recorded directory. A moved source must be suspended and settled. A Runner left in the old allocation is never adopted live. - The retained-source fallback (`continueFromLastSavedWorkspace`) and its discovery now also cover the native no-replay hold (`native_continuation_requires_reconciliation`, active or resolved with outcome `blocked`, replay blocked for the same run). Rows saved by earlier releases are discovered without migration. - The fallback owns the Blocked status of such a hold only while the recorded `nativeFailureBlock` status version still matches the task. Otherwise it keeps the newer block and starts no continuation. - The refusal text no longer says "succeeds only after Paperclip is updated", and it promises no fallback. - `doc/execution-semantics.md` describes both rules. ## Verification - Red (unfixed code): `native-controller-recovery.integration.test.ts` "binds a retained Runner read to the source's directory after the workspace moved within the same sandbox" failed with `native_controller_recovery_missing_evidence:retained_sandbox_binding` at `native-controller-recovery.ts:145`, the staging error. - Red (unfixed code): `workspace-recovery-fallback.test.ts` "continues a resolved-but-blocked native no-replay hold from the last save, discovered by the worker" failed: the worker found no due work for the exact staging row. The newer-block safety case and the message case in `system-recovery-state.test.ts` also failed. - Provider boundary: a new test drives `restoreRemoteSuspendedRunnerCheckpoint` through a sandbox runner that refuses paths outside the sandbox workspace base. The suspended case reads `runner-state.json` from the source directory, never the moved root. The ready case is refused with `runner_not_settled` and caches nothing. - Green: `native-controller-recovery.integration.test.ts`, `workspace-recovery-fallback.test.ts` and `system-recovery-state.test.ts` pass (45 tests). The neighbouring suites `workspace-recovery-retry-copyback`, `workspace-recovery-preparation-gates` and `workspace-recovery-stop-proof` pass (135 tests). - Safety cases: another workspace, another parent, a non-canonical path or name (`-0-`, trailing text), `/unrelated` and another sandbox stay refused. A hold whose task moved to a newer Blocked decision keeps the block and starts no continuation. Exactly one continuation is delivered. Native replacement is denied for the abandoned source, so no second executor starts. - `npx tsc --noEmit -p server/tsconfig.json` passes. `pnpm verify` returns exit 2 (a global doc input changed), so required CI supplies the broad coverage. ## Risks - Previous-release state: rows saved by earlier releases carry forward without migration. The binding reads existing lease metadata. The fallback discovers existing resolved-but-blocked holds by their existing evidence fields. - The binding now accepts a sibling allocation directory. The read still binds to the exact sandbox, run, environment and committed owner, and it reads only the source's recorded directory. A non-suspended Runner in a moved allocation is refused, not adopted. - The fallback abandons the unverified epoch and continues from the last committed save with a fresh session. In the staging shape the run did no provider work after it restored that save, so no work is lost. Unverified files are attached to the task when they can be read, as before. - Not verified live: a real warm Codex resume after a moved allocation on Daytona. > 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 - Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, via Claude Code with tool use (shell, file edits, read-only browser access to staging). Extended reasoning enabled. ## 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 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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DottaandClaude Opus 5.5
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84908d176b |
fix(recovery): name the failed check in native_remote_recovery_lease_mismatch (#19839)
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work > - Remote native runs execute in a sandbox, and recovery can reattach a run to its original sandbox runner > - Reattachment checks the saved lease, workspace, and runner identity in five places. Each failed check throws the same bare `native_remote_recovery_lease_mismatch` > - On staging, 34 OpenCode runs on 31 tasks failed with this bare error in one evening. The run records could not show which check failed, so the cause could not be confirmed from the run alone > - This pull request makes every producer name the failed step and field with closed values > - The benefit is that an operator and the next investigation can see which reattachment check failed, without new logging or identifiers in the error ## Linked Issues or Issue Description Refs #19399, Refs #19733, Refs #19755, Refs #19779 **What happened?** Remote same-run retries failed with `native_remote_recovery_lease_mismatch` and the task was blocked for reconciliation. The error is thrown by environment acquire, environment resume, workspace preparation, workspace sync, and remote runner verification. All of them used the same bare string. The run's `error` field and its run events did not show which check failed. **Steps to reproduce** 1. Start reattachment for a remote native run whose saved lease, workspace reference, or runner identity no longer matches. 2. Read the run's `error`. 3. It shows only `native_remote_recovery_lease_mismatch`. **Expected behavior** The error names the step and the field that differed, with no identifiers, and existing consumers of the code keep working. ## What Changed - New `server/src/services/native-runtime/remote-recovery-lease-mismatch.ts`: the code constant, a closed `stage` and `field` vocabulary, and `remoteRecoveryLeaseMismatch(stage, field)`. It builds `native_remote_recovery_lease_mismatch: stage=<stage> field=<field>`. - `environment-run-orchestrator.ts` (stages `environment_acquire` and `environment_resume`), `heartbeat/workspace-preparation.ts` (`workspace_preparation`), `native-workspace-sync.ts` (`workspace_sync`), and `verifyRemoteRunnerReattachment` in `native-session-executor.ts` (`runner_verification`) now throw the detailed form. Each check keeps the same condition and order. Only the message changes. - `restart-interrupted-turn.ts` uses the shared constant. It already matches the code exactly or as the `code: ` prefix, so automatic continuation after a reattachment loss is unchanged. No other consumer matches the code. - `doc/execution-semantics.md` documents the detail format. ## Previous-release state This change adds no persisted state and changes no saved identity. Runs that a previous release failed keep the bare `native_remote_recovery_lease_mismatch` in `error`. Runs failed by this release store the detailed form. The only consumer (`isReattachmentLoss` in `restart-interrupted-turn.ts`) accepts both forms, and `workspace-recovery-retry-copyback.test.ts` covers both. ## Verification - Exact-detail assertions in the producer tests: - `server/src/__tests__/environment-run-orchestrator.test.ts`: every scope, status, expiry, provider, lease-ID, cwd, plugin-task, and resume case asserts its stage and field. Against the previous producer, 21 of these cases fail (the message was the bare code). With this change, all 57 tests pass. - `native-session-executor.test.ts`: a replaced sandbox reports `runner_verification`/`provider_lease_id`. A missing durable runner identity reports `identity_run_id` before any sandbox read. - `native-workspace-sync.test.ts`, `heartbeat/workspace-preparation.test.ts`, `native-controller-recovery.integration.test.ts` assert their exact detail. - End to end on embedded PostgreSQL: `heartbeat-native-remote-failure-retention.test.ts` records `native_remote_recovery_lease_mismatch: stage=environment_resume field=lease` on the run when the provider no longer resumes the lease, and it still requests the user's Retry once. `workspace-recovery-retry-copyback.test.ts` adds a detailed-form row that still continues once. - The affected server test files pass locally. `pnpm --filter @paperclipai/server typecheck` passes. ## Risks - Low risk. Only the error text changes. Conditions, ordering, and fail-closed behavior are unchanged. - Logs and run errors show a longer message. The detail has closed values only, so it adds no identifiers or secrets. - A first version of this PR also changed remote retry selection. Review showed that a plain resume in a new sandbox hits the remote workspace's unsaved-work hold, and that a `destroy` disposition does not prove the old sandbox is gone. That change is removed. It needs a separate design. ## Model Used - Claude Opus 5.5 (Anthropic), model ID `claude-opus-5-5`, run in Claude Code with tool use (shell, file editing, read-only browser access to staging). ## 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> |
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c3180398fa |
fix(native): resume a remote Runner after a settled suspension
fix(native): resume a remote Runner after a settled suspension A scheduled checkpoint retry can retain a remote reattach claim after closing its failed predecessor cleanly suspends and exits the Runner. Resume only that exact settled source after confirmed exit and a fresh identity/state check. Preserve pending work and uncertain-exit fences. Admit the last already-charged provider attempt and share one bounded recovery deadline with the final state read, retaining closed diagnostic labels on read failures. Cover fresh ACPX Runner relaunch on attempts two and three through actual processes and the durable close barrier. Six affected suites pass 1,579 tests, with 14 environment-gated skips; all server typecheck layers pass on Node 25.6.1. The complete provider turn continuation failure remains preserved as follow-up #19751. Refs: #19366 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Co-Authored-By: Paperclip <noreply@paperclip.ing> Co-Authored-By: Paperclip <Paperclip-Paperclip@users.noreply.github.com> |
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DottaandPaperclip
|
0819f4ea78 |
fix(native): verify controller ownership before retrying saved turns (#19638)
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Native task turns can keep a provider conversation from an earlier run. > - A copied conversation checkpoint names the new run before its controller has attached. > - A failed attachment can make recovery treat that copied identity as current execution authority. > - The current run needs its own durable controller checkpoint, or a valid staged attachment, before exact resume. > - This pull request checks that ownership and uses the normal Retry path to continue a saved user turn after verified cleanup. > - The task can continue once with its saved work and history. ## Linked Issues or Issue Description Refs #19399 and #18860. **What happened?** A new user comment resumed a completed native conversation. The retained runner process was gone before the new controller attached. The new run still had a copied provider session ID. Recovery selected exact resume for that new run and then failed its unchanged owner and lease checks. Ordinary first-attempt failure settlement also omitted the saved-user Retry handoff that restart recovery already uses. **Expected behavior** Exact resume requires current controller evidence. A saved user turn can request one normal Retry after this infrastructure failure. The normal path must verify provider stop, saved files, current user authority and all execution gates before it starts a fresh session. **Steps to reproduce** 1. Finish a native warm run and retain its provider checkpoint. 2. Admit a user comment as a new run and copy the provider checkpoint through the real resume producer. 3. Stop the retained runner before attachment. The real remote process check reports that the process is not running. 4. Observe that the copied provider ID selects exact current-run resume. Observe that ordinary failure settlement saves no Retry request. ## What Changed - Check a bounded encrypted controller header for fenced remote Runner recovery. Keep local Runner recovery on its existing disk-backed path. Match the run, conversation and runner identity. Preserve the existing staged-attachment path. - Share the existing saved-user Retry admission between restart recovery and ordinary terminal native settlement. Keep its exact infrastructure errors, user wake, comment, provider-turn and retry-chain checks. - Add real PostgreSQL and stopped-process regressions. Verify malformed and foreign checkpoint holds, current-owner resume, user authority and Stop. Verify saved-file recovery creates one fresh-session successor. - Document the ownership and Retry contract. ## Verification - RED: the real checkpoint rebind producer and stopped-process check selected exact current-run resume without a current controller checkpoint. - RED: ordinary settlement created zero Retry receipts for the real native failure code; expected one. - Review RED: a real current local controller file existed with no database checkpoint rows. The initial gate returned ambiguous state. The fix takes a required trusted execution-target kind and applies the database requirement only to the remote persistence path. - Initial local revision: `3662055880ccf8e09c3c50a340897e16c78627e7`, macOS ARM64, Node 26.4.0, pnpm 9.15.4, embedded PostgreSQL. - Initial server Vitest: 42 selected cases passed across controller recovery integration, remote restart adoption, ordinary run completion and retained workspace recovery. The cases cover the stopped-process producer, current/foreign/malformed ownership, automatic user continuation, Stop, unsettled turns, system wakes and a manual Retry on first use. - `pnpm --filter @paperclipai/server typecheck`: passed with this worktree's Runner, shared and SDK builds and all seven server layers. - `node scripts/check-module-boundaries.mjs`, whitespace checks and the added-code-comment audit: passed. - Review correction: `8c795e2e0e44b5209da3e228593c5cd35e948cae`. The real local/remote controller case passed against a fresh PostgreSQL cluster. It verifies local disk recovery without database rows, remote current-owner resume, and remote missing/foreign/malformed holds. Fresh `node scripts/typecheck-layers.mjs` passed all seven server layers. The existing offline chat reader now requests metadata only and retains its full independent native-state safety check. - A broader local recheck hit PostgreSQL setup/cleanup hook timeouts. These are retained as failed setup attempts; the fresh-cluster regression above passed. Required CI supplies broad final-head coverage. - Settlement-order correction: `dafb721c3bbb7ae86fbc3c9c6c953ace29ca088b`. The real PostgreSQL regression first proved both failures: Stop after an already-failed row created one Retry instead of zero; a DB-native promotion with an old legacy caller snapshot created zero instead of one. All six settlement scenarios now pass. The hook requires the local failed outcome and the canonical settled native row. Fresh seven-layer server typecheck passed again. - Required shared fixture base integrated at `d22d8f9d5ee3dc36550a94d55c1d8376f3b9aab2`. The six runner-skills fixture cases and all seven server typecheck layers passed. Required CI passed for this head: [workflow](https://github.com/paperclipai/paperclip/actions/runs/42309419592), including all server layers, tests, build, Runner verification and E2E. The final snapshot has 57 successful checks, three intended skips and one neutral result. Current-head Greptile is 5/5; both concrete review threads are resolved. The independent re-review ended without a final response; its prior Stop finding has a real RED/GREEN repair. The focused command was run from `server/`: ```sh ../node_modules/.bin/vitest run --config vitest.config.ts src/services/heartbeat/run-completion.test.ts src/services/native-runtime/native-controller-recovery.integration.test.ts src/services/native-runtime/native-session-executor.test.ts src/services/workspace-recovery.test.ts -t 'replays saved user intent|does not assign current-run resume authority|remote controller restart adoption|continues a user turn once|does not continue automatically' ``` ## Risks - A terminal failure of a fenced Runner adds one exact-run header read. The read selects one encrypted header and limits inspection to 1 MiB. Invalid or missing ownership evidence stays held. - Saved user input can request one automatic Retry. It uses normal preservation, current authorization, budget, approval, Stop and cleanup gates. Unsettled provider turns and system wakes do not start an automatic successor. - This PR changes no provider process, credential, model or lease authority checks. ## Model Used OpenAI GPT-6 family through Codex, with reasoning, tool use and code execution. The model is inherited; no override was used. The exact serving model ID and context-window size are not exposed by this runtime. ## 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> |
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DottaandPaperclip
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612d9931a6 |
Support per-turn Runner sessions on ephemeral web servers (#18932)
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - The web server controls native Runner sessions in remote sandboxes. > - An ephemeral web server must recover without its previous local filesystem. > - The existing admission rule accepts warm sessions. Managed Claude, Grok, and OpenCode sessions resolve to per-turn execution. > - Per-turn execution also needs durable provider-session bytes after the sandbox is retired. > - This pull request adds encrypted backup publication and removes the warm-only admission rule. > - Both lifecycle modes can use the existing native ownership and checkpoint contracts during a web deployment. ## Linked Issues or Issue Description Refs: #18518, #18529, #18826, #18835, #18841, #18864, #18887. **What existing behavior does this improve?** Native Runner execution on web servers with `PAPERCLIP_EPHEMERAL_SERVER=true`. **Current behavior** The admission rule requires a warm Runner lifecycle. Managed provider credentials can resolve an agent to per-turn execution, so enabling the ephemeral deployment profile blocks those turns. A database controller checkpoint does not preserve provider files after the old web home and per-turn sandbox are removed. **Proposed behavior** Admit native execution in either resolved lifecycle. Keep provider and credential choices unchanged. Publish encrypted provider state to shared storage before sandbox cleanup. Restore it from a fresh web home for the next turn. Use the existing controller lease and generation checks for active takeover. **Reason and benefit** Operators can remove the web server volume without excluding per-turn providers or forcing managed accounts into warm sessions. New native Daytona profiles automatically enter both rolling-deployment qualification lanes. **Breaking changes** The additive migration creates a backup publication ledger. Existing volume-backed local-disk installations retain their local backup path. S3 installations publish encrypted backups and require a stable secrets master key. Existing-volume enrollment must import surviving session data before detaching the volume. ## What Changed - Admit native Runner execution independently of its warm or per-turn lifecycle. Keep host-owned legacy execution excluded from ephemeral deployments. - Store private provider state as encrypted objects. Journal uploads before I/O, read them back, and fence publication against the current native owner. Keep the previous published backup when storage or ownership checks fail. - Restore exact provider bytes into a private cache. Require an exact durable backup before sandbox cleanup. Extend the existing bounded retention pass to retire stored objects without adding idle polling. - Import selected legacy controller and provider state in the existing offline maintenance process. Preserve queued work, task pointers, pending recovery, and original files. Prefer canonical database checkpoints. - Preserve already-failed legacy controllers with missing original artifact proof as encrypted archives. These archives do not become execution authority. Successful retained sessions still require proof. Report archival and executable imports separately. - Verify unmanaged Grok API keys through the existing xAI account validator. The live test exposed a readiness gap that kept remote Grok agents paused after platform checks. Preserve failed credentials and the separate runtime warning. - Ingest Grok whole-prompt usage at the owning ACP boundary. Bind the receipt to the exact outbound request/session; reject replay, conflicts, and incomplete authority. Separate turn cost from cumulative session cost in the sidecar schema and Rust normalization. Preserve managed billing identity and identify direct xAI API credentials. - Preserve published workspace directory names across cold allocations, including destroyed-allocation cleanup. Keep unpublished epoch/lease directories isolated and refuse to overwrite an occupied preparation. This fixes the cold-session identity regression exposed by #18922. - Increase bounded checkpoint-header inspection to 1 MiB. Retain the aggregate inspection limit. - Register all nine native Daytona profiles in per-turn and warm rolling-deployment suites. Delete the entire departing server home, exercise ordinary reads and writes, require active ownership transfer, then check a later turn on another fresh server. Permit only exact notification replay after reconnect. Ownership stays with the existing modules: Runner validates its protocol state; Core validates run scope and controller ownership; storage owns object I/O; the maintenance process owns offline conversion; the E2E wrapper owns process replacement and probes. No provider protocol is added to the shared admission rule. Grok receipt parsing stays in its provider module. The shared sidecar gains an explicit cost basis because its existing price field means session-cumulative spend, while Grok reports prompt totals. Existing consumers retain cumulative behavior when the new field is absent. ## Verification - Focused native admission, archive validation, publication fencing, cleanup, readiness, legacy import, and E2E observer tests pass. Real PostgreSQL cases verify that queued intent and historical recovery rows stay unchanged. - Full typecheck and build pass on the rebased branch. The review follow-up passes server typecheck, 29 focused PostgreSQL/archive/readiness tests, and module-boundary checks. Revision fb8d39a7a1 reached 55 successful CI checks and Greptile 5/5 with no unresolved threads. The Grok follow-up passes Runner/server typechecks, 238 ACP runtime/projection/usage tests, 16 sidecar-schema tests, the Rust cost regression, and Core billing regression. The |
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DottaandPaperclip
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0b87308d5d |
fix(native): defer warm continuation during predecessor finalization (#18811)
## Thinking Path > - Paperclip manages agent work and preserves its saved results. > - Native warm sessions can continue on a retained remote Runner. > - A completed predecessor can still have a live finalization lease. > - The continuation must wait for that owner before it can start work. > - Two admission checks treated that temporary lease as ambiguous state. > - This pull request uses the existing deadline-based wait for both checks. > - The same business run can continue once, with its saved context and gates. ## Linked Issues or Issue Description **What happened?** A compatible remote warm continuation can fail before provider work starts. Its predecessor has completed, but a finalizer still holds a live lease. The warm-session check reports `runner_state_identity_mismatch: prior_owner_terminal_state_indeterminate`. The earlier retained-sandbox check has the same problem on the command transport. **Expected behavior** Keep the unstarted continuation on its existing run. Wait until the recorded owner deadline. Recheck ordinary ownership, Stop, credentials and checkpoint evidence before execution. **Steps to reproduce** 1. Complete a remote warm turn and retain its controller records and provider session. 2. Give that completed predecessor a live finalization lease. 3. Admit a compatible follow-up with full local controller projections. 4. Before this change, admission fails permanently. It must instead persist a bounded pre-provider wait. **Paperclip version or commit** The PostgreSQL regression failed before production edits on `adb49a4434`. The current head is `5762dfbe4e`, based on master `e491b23eb5`. **Deployment mode** Native remote sandbox execution. No database migration or provider artifact change is required. Related: #18718 refreshes stale warm-controller projections. #18343 adds controller replacement recovery. #18554 restores suspended remote sessions. This change handles a live predecessor finalizer after those source checks. The shared historical error does not identify its failed predicate. This regression proves the finalizer race; it does not prove that every historical instance of that error had this cause. ## What Changed - Defer a compatible warm continuation while its completed predecessor has a live finalization lease. - Use the same wait in the preceding retained-sandbox read check. - Preserve the current run, provider attempt count and checkpoint. Reuse the existing resumption scheduler. - Add PostgreSQL cases for both finalization phases, lease expiry, company scope, incompatible configuration, unfinished commands, Stop and duplicate resumption claims. - Add an opt-in three-turn Linux Runner case. Update the child-controller fixture to own and register a local API listener. - Document the waiting behavior and acceptance case. - Repair two readiness barriers in the refresh-worker integration fixture after a required CI shard failed twice: wait for paginated startup and for active worker promises to settle before checking idle SQL. ## Verification - **Native regression RED:** before production edits on `adb49a4434`, the PostgreSQL boundary case received the permanent identity error instead of `NativeControllerRecoveryWaitingError`. - **Regression GREEN on the current head:** all **71** focused recovery, settlement, heartbeat safety and refresh-worker cases pass on `5762dfbe4e` with Node 24.21.0 and PostgreSQL 18. They cover incompatible identities, company/configuration mismatches, expired or missing deadlines, unfinished commands, Stop, retained files and duplicate resumption claims. - **Real process acceptance on the current head:** the three-turn `finalizer-wait` case passes in 58.01 seconds. PostgreSQL, TLS, a rebuilt Linux Runner and the deterministic Codex app-server fixture confirm zero attempts and no provider turn during the wait, one claim resuming the same run, retained history, a healthy third warm turn and final suspension. The sibling `warm-suspended` case from master also passes, in a fresh container, in 46.02 seconds. Both runs use `5762dfbe4e`; the artifacts were rebuilt from that checkout with the repository's pinned Rust 1.97.1 toolchain. - Acceptance used Node 24.21.0 and glibc 2.41. Earlier probes exposed the missing fixture API listener and the preceding retained-sandbox guard; both are corrected. A stale disposable listener and an incompatible libc image failed setup before the successful fresh-container run. These setup failures are not the original regression's RED. - Repository typecheck/build passed locally before the rebase. Server typecheck passes after the rebase. **Full CI passes on the current head:** 48 successful jobs and one expected scope skip, including typecheck, build, Runner checks, all serialized-server shards, general tests, E2E and the final aggregate. Module-boundary and whitespace checks also pass. - Broad local inventories are incomplete: six chat shards passed (1,834 tests), but untouched server/UI/adapter cases hit timeouts. The exact shared-base expiration case passes alone; a full-file rerun passed all 89 assertions but timed out in teardown. A Node 24 rerun timed out in another lifecycle case and teardown. A later PostgreSQL recheck could not allocate shared memory; this task's redundant broad controllers were stopped and their logs retained. - CI attempt 1 failed a Cursor Cloud cancellation deadline, an E2E cleanup cancellation with a PostgreSQL lock timeout, and the refresh-worker startup settling limit. One failed-only retry passed Runner and E2E; the same refresh startup case failed again. Two aggregate jobs had previously stalled in the hosted-runner queue and blocked the retry; that obsolete attempt was cancelled. No repeated blind rerun is being used. - **Readiness repair RED/GREEN:** real PostgreSQL 18 behind a loopback proxy with 20 ms delay per direction reproduces the exact startup error before the test change; the same probe passes afterward. An initial controlled probe hit the dedicated-database naming guard before tests ran and is excluded from RED evidence. The full-file check then exposed a separate false-idle barrier: a worker could be running while its scheduler had no timer. The fixture now also checks the existing active-work tracker. All **24 cases pass** with both repairs. The at-most-six scoped SQL reads and zero recurring idle-SQL assertions are unchanged; startup alone has an explicit bounded condition wait. No production behavior or timeout changes. - Greptile and Paperclip Review are both **5/5 on the current head**, with no open findings. Both reviews used source inspection; the runtime evidence above was obtained separately. The previous review workspace was recovered on the first production attempt after repairing its partial-clone export. Its preserved result and real follow-up both finalized successfully, saved snapshots and released their writers and finalization leases. Three current-head CI shards received hosted-runner shutdown signals and were cancelled. All three passed their one justified retry. The queued aggregate had to be cancelled to schedule that retry; the final aggregate also passed. [Current-head CI](https://github.com/paperclipai/paperclip/actions/runs/41706617909). - This acceptance does not qualify a live Codex model or Daytona API run of the native repair. No deployment or recovery of the original task is claimed. ## Risks - A wait must not grant a second executor. The current attempt stays at zero until the existing scheduler claims it. Expired or missing deadlines retain their existing hold. - Saved state must survive the wait. Admission still requires the same company, task, session, configuration and physical sandbox evidence. - Current Stop, budget, credential and permission gates remain with ordinary resumption. No polling loop is added. ## Model Used OpenAI Codex, GPT-6 family. The runtime does not expose the exact serving model ID or context-window size. Capabilities: reasoning, repository inspection, code editing, shell tools and 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 - [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> |
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DottaandPaperclip
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492d537340 |
fix(native): recover controllers across webserver replacement (#18343)
## Thinking Path > - Paperclip manages AI agents and their work. > - Native execution runs in a remote Runner while the webserver owns its controller. > - Encrypted PRP checkpoints and session snapshots already survive a webserver restart in Postgres. > - Ordinary warm and per-turn admission still needs local markers and supervisor metadata to find that state. > - Replacing the webserver with an empty native controller directory can therefore lose a usable retained session. > - This change adds bounded recovery metadata to the existing snapshot transaction and reconstructs local projections from the selected durable source. > - The benefit is native execution continuity across webserver replacement, with the existing ownership and agent lifecycle policies. ## Linked Issues or Issue Description **What existing behavior does this improve?** Native remote controller recovery and retained-session continuation during a webserver upgrade. **Subsystem affected** server/ — native runtime, checkpoint persistence, recovery scheduling and internal upgrade reporting. Product E2E qualification also changes. **Current behavior** Without both the local PRP marker and supervisor file, normal continuation can return before discovering the saved Postgres checkpoint. The snapshot already exists in Postgres, but its local reuse compatibility envelope cannot be reconstructed. **Proposed behavior** Select the existing durable source, validate its identity and ownership, restore its PRP state and supervisor projection, then use normal authenticated admission. Missing or inconsistent evidence holds recovery. It does not authorize fresh provider work. **Reason and benefit** A replacement webserver must recover active execution and later continue its retained session without the old server's native files. This is one component of deployment continuity. HTTP traffic switching, workspace storage migration and Railway rollout remain separate. **Breaking changes** No new public endpoint, schema migration or database pool. The private run-profile envelope is additive. Disk-independent rollback also requires a reader for the staged controller format and compact checkpoint part; the first production release containing these readers is the floor. Older file-backed sessions need an owner checkpoint or the bounded internal importer. **Additional context** Related foundations: #17401, #17916, #17254, #14621, #14622. The implementation contract and open acceptance gates are in [the dated plan](doc/plans/2026-10-30-native-controller-checkpoints.md). ## What Changed - Persist a versioned recovery envelope, at most 4 KiB, beside the redacted session snapshot in its existing transaction. Keep it out of public run projections. - Compare frozen admission separately from prepared attachment instructions during staged recovery, preserving exact template/identity/authority checks. - Bound the existing lazy checkpoint pool at three connections after measured two-slot burst backlog; keep request/renewal capacities and SQL operation counts unchanged. The tuning is a separate commit. - Discover and restore the exact selected retained source without local native markers. Preserve the 32-candidate window, progress barriers and current authority checks. - Fence snapshot and result writes. Acquire coordinator, issue and run locks in order and check expiry after lock waits. Combine snapshot ownership/read work into one statement. - Reuse existing recovery deadlines and drain/resume scheduling. Retained-owner waits preserve the original unstarted run and actual lease deadline. Stop, ownership and provider-progress fences precede deferral. Add bounded native evidence reporting, retained-source import and retention protection. - Admit a settled warm source with an authenticated idle goal-read suffix while retaining active-work and mixed-authority holds. - Permit lifecycle `turn.stop` checkpoints after accepted results under existing ownership fences. Claim the existing successor coordinator before retiring the old warm session, and stage shared attachments only after verified retirement. Preserve omitted isolated-home defaults and existing fresh skill-selection order during recovery without hiding real configuration changes. - Carry the exact durable six-field PRP binding during active recovery after a healthy warm handoff. Keep the Runner mismatch guard and preserve opaque attachment IDs. - Preserve an already verified active or idle warm process during remote preparation; revalidate its proof/liveness and retain later authenticated PRP attachment. Ordinary resumed leases retain suspension checks. - Drain retained source events under their original authority, reconcile immutable source accounting and block unknown source tool dispatch before target work. - Persist compact staged handoff intent through authenticated adoption and recover direct/listener command-loss windows without another Runner or duplicate attachment. - Rebuild suspended lifecycle receipts for resumed prepared tasks, and retry missing lifecycle reads after partial PRP materialization without overwriting contradictory evidence. - Add normal warm/per-turn diskless continuation coverage, real Postgres races and SQL-cost checks. Add a reproducible paired load workload. - Give only the explicit outage fixture a 15-minute provider idle window, with a red/green catalog regression preserving all production timing and lifecycle policies. - Publish the goal-less task-session pointer in the existing post-acceptance terminal checkpoint transaction, with current ownership, accepted-result, reset and newer-progress fences. Keep a private bound receipt so late completion cannot duplicate or resurrect publication. - Use a retained warm sandbox in the dedicated continuity fixture, and accept an exact output token followed by an explanation. Keep the strict identity oracle. - Extend the explicit Daytona cell to a five-minute active outage and another replacement after completion. Require retained provider identity, a new tool receipt and a useful follow-up result. Add an owned loopback Postgres E2E fixture for hosts that cannot start embedded Postgres. ## Verification **Merge recommendation — `fc68584ce6231a02e47ecd743f55b036ccea034f`: ready for the qualified native-controller component.** Full CI, fresh review, local application paths, controlled performance qualification and the strict live Linux/Daytona case pass. Independent resource cleanup is complete. Broader rollout, browser reconnection and the unexecuted transport/platform combinations remain integration gates. Integrated 484 passed full local recursive typecheck/build and ordinary active→completion→cache-loss→C component qualification. Fresh review then found a valid attached-wake failure: preparation appends attachment instructions before the verifier compares execution to the frozen admission. 9f4 fixes that by separately checking the pre-preparation admission and exact prepared execution. Both hashes are captured privately per admission; the full template, identity, configuration and authority checks remain. Its regression fails before the fix; 36 focused cases, 42 staged source/target cases and server typecheck pass afterward. The review thread is resolved. Exact-head full CI passes ([run 41168228822](https://github.com/paperclipai/paperclip/actions/runs/41168228822): 48 successful jobs, one intended skip); the complete `pnpm test:run` partitions are forced, with the five native suites in the Runner lane. This is not a claim that an unsharded local command passed. The fresh exact-head Greptile check succeeds with 5/5 and all six threads resolved. The original two-connection database comparison closes **steady PASS and burst FAIL**. Every relative CPU/WAL/request-p99 gate passes and all operations/ownership remain correct, but candidate arm 3 drains in 1,015.99 ms and baseline arm 4 in 1,059.67 ms against the unchanged 1,000 ms absolute gate. Those results remain failed. A separate 2→3→4→2 diagnostic reproduces drain times 1,051.57 / 956.79 / 882.02 / 1,065.72 ms: three is the smallest tested passing cap, and the repeated two-cap failure survives run-order/cache effects. Separately reviewable `fc68584ce6` changes the existing lazy checkpoint pool default to three connections. Request capacity stays ten and liveness two; idle release, shutdown fencing, transaction counts and pool count are unchanged. Thirteen DB lifecycle/cap tests and DB typecheck pass. Full recursive typecheck/build pass at exact |