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Nicky LeachandPaperclip
3e28d64a72
## Thinking Path > - Paperclip routes plugin worker messages to agent sessions. > - The login pseudo-terminal route opens after the host receives the open reply. > - `readline` can deliver later frames from the same pipe read before that reply continuation runs. > - The host dropped early output and exit frames. > - The fix queues valid early frames, preserves arrival order, and replays them after the route opens. > - The route uses bounded memory and closes fail-closed when a bound breaks. > - The final tests also pin child issue ordering so the serialized suite remains deterministic. ## Linked Issues or Issue Description Fixes #12122 ## What Changed - Add a bounded queue for login pseudo-terminal output and exit frames during route opening. - Validate session ids, chunk types, and per-chunk limits before queue insertion. - Bound the queue by 10,000 frames and 8 MiB of characters. - Charge retained worker session identifiers against the character bound. - Preserve arrival order and stop replay after the first valid exit. - Drop repeated exits without changing the first exit position or code. - Bound the repeat-exit lookup and clear queued state on all terminal paths. - Add regression tests and fixture support for coalesced frames, ordering, limits, cleanup, and log safety. - Pin issue numbers in the child-wake test so its expected child order remains deterministic. ## Verification - Build the plugin SDK with `pnpm --filter @paperclipai/plugin-sdk build`. - Run `npx vitest run server/src/__tests__/plugin-worker-manager.test.ts` from the repository root. - Run `npx vitest run server/src/__tests__/issues-service.test.ts` from the repository root. - The focused plugin worker suite passes 66 of 66 tests at the prior reviewed head. - The issue service file passes 120 of 120 tests in two isolated runs at the current head. - Confirm that GitHub Actions passes all required checks. - Confirm that Greptile reports 5/5 with no unresolved review threads. - Storybook visual regression remains skipped because the PR has no `storybook-visual` label. ## Risks - The queue adds bounded memory use while the login pseudo-terminal route opens. - A queue limit breach closes the route and prevents unbounded buffering. - A hostile worker can fail only its own login route when it breaches a bound. - The first valid exit closes the route, so later records do not reach the session. - The child-wake test now uses distinct issue numbers to match the service sort contract. ## Model Used OpenAI Codex, GPT-5, extended reasoning, tool use, and code review support. The runtime does not expose a separate context-window value. ## 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 that 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 linked the existing public issue with `Fixes: #12122` - [x] I have not referenced internal Paperclip issues or links - [x] My branch name describes the change and contains no internal ticket id - [x] I have run tests locally and they pass - [x] I have added or updated tests where applicable - [x] I have updated relevant documentation where needed - [x] I have considered and documented risks above - [x] All required Paperclip CI gates are green - [x] Greptile is 5/5 with no unresolved review threads - [x] I will address all Greptile and reviewer comments before requesting merge --------- Co-authored-by: Paperclip <noreply@paperclip.ing>