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Harshit KhemaniandClaude Fable 5
3e1dc90bf2
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work > - Issues can carry an embedded multi-stage `executionPolicy` (e.g. QA → CodeReviewer → CodePusher) driven by `applyIssueExecutionStageTransition` in `server/src/services/issue-execution-policy.ts` > - On approval, the next stage was picked with `nextPendingStage()`, which scans the **whole** stage list from index 0 for the first id not in `completedStageIds` > - Stage ids are regenerated whenever the embedded policy is re-sent or edited mid-flow (a supported operation — the existing "reassigns the active stage when the current participant is removed" test depends on it), so earlier `completedStageIds` can stop matching the current policy; a final-stage approve then "finds" stage 1 pending again and rebuilds a first-stage review (#7893) — an endless re-review loop that can recycle indefinitely against a moving main tip > - This pull request makes approvals advance with a forward-only scan (only stages *after* the one being approved), so approving the last stage always terminates the policy, and adds a guard so an already-completed execution state is terminal for `status=done` > - The benefit is final-stage approvals close the issue as the policy intends, with no behavior change for non-final advancement or reject/changes_requested verdicts ## Linked Issues or Issue Description Fixes #7893 ## What Changed - `server/src/services/issue-execution-policy.ts`: - New `nextPendingStageAfter(policy, completedStage, state)` helper — forward-only scan from the approved stage's index; the approval path uses it instead of `nextPendingStage()`. Approving the final stage therefore always yields `nextStage === null` → completed state → the caller's `done` flows through. - New guard: `requestedStatus === "done"` with an already-`completed` execution state returns without restarting the chain at stage 1 (closes the same loop when a stale completed state lingers). - Reject/`changes_requested` verdicts and intact-state forward advancement are untouched. - `server/src/__tests__/issue-execution-policy.test.ts`: 4 regression tests, including one that reproduces the exact rewind (regenerated stage ids + final-stage approve → previously reassigned QA at `currentStageIndex 0`; now terminal completed) and an explicit final-stage rejection test pinning the unchanged path. ## Verification - `npx vitest run server/src/__tests__/issue-execution-policy.test.ts` → 54 passed (50 pre-existing + 4 new). - `pnpm --filter @paperclipai/server typecheck` → clean. - The rewind was confirmed empirically against unmodified code first (a test asserting the buggy output passed pre-fix and flips post-fix), plus brute-forced realistic operation sequences (checkout dances, status round-trips, interim comments per the agent flow documented around #4889) to verify intact-state flows are unaffected. - Related suites (`issue-execution-policy-routes`, `issue-comment-reopen-routes`, `issues-service`, `issue-thread-interaction-routes`, `issue-agent-mutation-ownership-routes`) also pass locally. ## Risks - Behavior deliberately preserved: non-final approvals (forward scan is identical when state is intact), rejections at any stage, reopen-from-done (state cleared on reopen, fresh chain still starts at stage 1), and explicit `in_review` restarts. - The policy schema has no terminal-state field, so per the issue's Ask the policy simply terminates and the requested `done` status flows through. ## Model Used - Claude Fable 5 (`claude-fable-5`, Anthropic) via Claude Code, agentic mode with tool use (subagent implementation + independent adversarial review subagent), extended thinking 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 (none found for #7893) - [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 run tests locally and they pass - [x] I have added or updated tests where applicable - [x] If this change affects the UI, I have included before/after screenshots (N/A — server-only change) - [x] I have updated relevant documentation to reflect my changes (N/A — internal stage-advance semantics) - [x] I have considered and documented any risks above - [ ] All Paperclip CI gates are green (will confirm once CI runs on this PR) - [ ] Greptile is 5/5 with no open P2s, recommendations, or follow-ups (pending first review) - [x] I will address all Greptile and reviewer comments before requesting merge Co-authored-by: Claude Fable 5 <noreply@anthropic.com>