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DottaandPaperclip
18b6b71d83
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Per-turn native sessions save controller checkpoints and suspended Runner backups under separate owners. > - A local controller projection can still name the first turn after the next turn has saved its checkpoint and backup. > - The old per-turn restore path selected that stale local reference instead of the newer canonical source. > - Admission then saw different turn identities and archived the valid backup with the old projection. > - This change uses the canonical selected checkpoint and the existing finished-owner proof before it replaces a stale projection. > - The benefit is that a third turn keeps the valid saved conversation and backup. ## Linked Issues or Issue Description **What happened?** After two successful per-turn remote runs, a third turn could fail before provider execution with unavailable provider resume state. The selected database checkpoint and suspended backup belonged to the second run. The local controller projection still belonged to the first run. **Expected behavior** The selected checkpoint must govern controller rehydration. Preserve the older projection and the selected run's backup. Do not overwrite current, newer, foreign, changed or unsettled ownership evidence. **Steps to reproduce** 1. Save two real controller checkpoints for one per-turn conversation and finish both owners. 2. Leave the first checkpoint's readable projection or external marker beside the second run's suspended backup. 3. Admit the third run through the real canonical selector and backend owner. 4. Before this change, admission archives the active backup with the stale projection and leaves no active controller state. Related: #18018 added per-turn controller restoration. #18718 refreshed warm projections. #18846 added finished-owner retirement. This change keeps the selected per-turn source from entering that retirement path because of an older projection. The open warm-only change #18436 concerns a different restart branch. ## What Changed - Resolve the canonical source before refreshing a prior per-turn controller projection. - Re-read it under the existing sorted coordinator locks. Replacing an older owner reuses finished-owner checks for both runs and verifies their full session scope. A same-source marker only rehydrates its exact selected identity before the normal retained-sandbox verification. - Recheck the exact initial local bytes after asynchronous reads and lock waits. Preserve the old control-plane directory in the existing archive, while keeping the newer backup and provider files active. - Restore a current-run external marker only from its own checkpoint before the existing bootstrap retry proof. A missing current checkpoint cannot select a previous turn. Retain readable current-run, legacy file-backed, backup integrity and provider resume checks. - Stage the existing OpenCode proxy bytes into the controlled fake-sandbox filesystem in the real ingress-retry fixture. Keep remote artifact path and digest checks unchanged. - Add real PostgreSQL/filesystem coverage for Codex and ACPX, readable projections and external markers, missing or corrupt parts, held owners, foreign scope, newer history and a current owner arriving during a real coordinator-lock wait. ## Verification - Baseline RED: the two new readable-projection cases failed against unchanged production code because active control-plane state was absent after admission. The real selector selected the second run. Setup failures were separate and are not counted as RED. - Exact final existing per-turn restore, active-owner refresh and retained-owner wait controls: 19/19 passed in 5.91s. - Exact final local source (`fd8d9d9021`, based on `131b566ca4`): 58/58 real PostgreSQL/filesystem and native Runner tests passed in 31.58s. This includes both existing ingress bootstrap retries through the real Runner and fake Codex/OpenCode providers, plus 56 focused owner cases. Cargo validated and rebuilt current source from a private APFS clone of an unqualified local cache; the original cache was untouched. A private local configuration resolves workspace DB, Shared and Runner sources without replacing behavior. The local CLI allowed a 90s setup hook; no default timeout changed. - Exact final full server and test-tree TypeScript check with Runner source paths: passed. The stock fresh-worktree check first failed on unbuilt Runner declaration entries; no product types were changed to hide that setup gap. - Exact final module-boundary and diff-whitespace checks: passed. - Native-server CI RED on the previous head: both real ingress retry cases failed because a current-run marker was returned without hydration. The aggregate gate failed from that one underlying lane. The correction preserves the own-checkpoint bootstrap path. The first local OpenCode attempt hit a controller-host fixture path guard before its intended failure; staging the same proxy bytes into the fake sandbox made both native cases pass. - Review regression RED: the real retained-sandbox fixture failed at `sandbox_resumed` on the first PR head. GREEN: the corrected owner hydrates the same-source marker and reaches the existing exact retained-lease/suspended-runner read. A mismatched item identity still refuses before any remote read. - Local environment: macOS arm64, Node 26.4.0, PostgreSQL 18.1. Provider execution is deliberately outside this admission fixture. The real three-turn workflow still needs verification on the normally deployed fixed source. ## Risks - Refresh requires settled, committed, released and stopped or fenced owners. Missing or changed evidence remains blocked. - The refresh holds existing coordinator locks while it validates bounded controller state. It performs no provider calls. - The old control-plane bytes remain in the archive. A restore write failure still fails admission; it does not reset provider state. - Final-head full CI is green, including typecheck, build, Rust, native-server, server and browser suites; Greptile is 5/5 with no unresolved threads. Hosted deployment and continuity verification remain separate acceptance steps. A successful replacement conversation is not proof of provider continuity; hosted continuity acceptance is still pending. ## Model Used OpenAI Codex, GPT-6 family, with code execution and repository tools. The host does not expose the exact backend model ID or context-window size. ## 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>