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DottaandClaude Opus 5.5
d9d5958d09
## Thinking Path - Paperclip's controller and the sandbox Runner exchange numbered commands; the Runner refuses a command whose number is not exactly one past the last it processed. - Staging's most common "Runner gone" failure was a follow-up controller whose journal was behind the Runner. #20928 removed the cause on the server (a warm follow-up now launches from the journal its retired predecessor saved) and added a defence that reconciles a journal behind only by the predecessor's settled close. - The Runner still treated an out-of-order command as fatal: `durable/state.rs` returned an error and the process exited. A controller with a stale journal from any other cause (state saved by an older release, a mid-run deploy) therefore lost the Runner process and the run could only fail as "Runner gone" (`runner_remote_process_identity_unavailable`). - This pull request makes the Runner refuse such a command with a precise result instead of exiting, and makes the server rest that run with a precise code and a Retry whose next run reconciles the journal (the #20928 defence) before it opens the session. ## Linked Issues or Issue Description - Refs #20928 (the server-side root-cause fix and the journal reconciliation this relies on) - Refs #20907 (makes runnerd exit text visible in the run log) - Duplicate search: searched PRs for "controller sequence contiguous", "controller_sequence_mismatch" and "out-of-order command"; none changes the Runner's handling. ## What Changed - `runner-core/src/durable/state.rs`: a new command whose `controllerSeq` is not `lastControllerCommandSeq + 1` (behind or a gap) now yields `CommandDisposition::Reject` with `status: "rejected"` and `{ code: "controller_sequence_mismatch", message, expectedControllerSeq, receivedControllerSeq }`. The command is not executed or journaled and the last sequence is unchanged; the process keeps running. Replay of an already-processed command and the compacted-history rejection are unchanged. - `native-session-executor.ts`: a failure carrying `controller_sequence_mismatch` is classified as `native_controller_journal_behind_runner`, a permanent (terminal) failure with a Retry action that says no provider work began and that Retry reconciles the journal from the saved checkpoint or stops with a precise error. - Tests: - Rust `tests/durable_recovery.rs`: out-of-order (behind and gap) commands are rejected with the precise code, the journal is unchanged, and the next contiguous command executes. The existing `command_gaps_and_identifier_reuse_fail_closed` unit test now asserts the rejection instead of an error. - Real runnerd `src/live/runnerd-stale-controller-journal.test.ts`: a follow-up controller with a journal missing the predecessor's close now gets `"code":"controller_sequence_mismatch"`, the Runner process stays alive and its durable sequence is unchanged; with the current journal it resumes. - Server: the classification and terminal disposition of the new code. ## Verification - Red (master Runner): the Rust test panics on `expect("an out-of-order command is not fatal")`; the real-runnerd test receives `runnerd exited unexpectedly with code 1: paperclip-runnerd: controller sequence must be contiguous: expected 6, received 4`. - Green: `cargo test -p paperclip-runner-core --test durable_recovery` (4 passed); `cargo test -p paperclip-runner-core` lib suite (the only other failure, `task_memory::tests::monitor_bounds_notices`, is a timing test that passes alone); `npx vitest run src/live/runnerd-stale-controller-journal.test.ts` with a runnerd built from this branch (2 passed); server `native-session-executor.test.ts` focused tests (71 passed). - `pnpm --filter @paperclipai/paperclip-runner check:acpx-profiles`: profiles match the release manifest. No ACPX profile, attestation, pin or pack contract schema changed (`rules/acpx-profile-identity.mdc`): the change is Runner source behaviour with an existing command-result shape, so no profile version or `commandDigest` changes. ## Risks - A controller that is *ahead* of the Runner (a gap) is now rejected instead of fatal. Neither case executes the command; the Runner journal is unchanged, so this is strictly safer than exiting. - The rested run needs a Retry. Before this change the same run failed after its retries as "Runner gone" with no precise cause. - Runner source changes the Daytona image content ID; a new image is needed for chaos waves on this revision. ## Model Used - Anthropic Claude Opus 5.5 (`claude-opus-5-5`), 1M-token context, tool use (shell, file edits, tests) 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 Opus 5.5 <noreply@anthropic.com>