Distillation

Date: Sep 16, 2026

• 🟡 (17:01) The continued candidate diff in packages/gateway/src/pipeline.ts added reasoning-summary lifecycle validation using partAdded and partDone state, validates that raw summary parts are arrays, and reconciles streamed reasoning summaries against terminal output through assertTerminalReasoningMatchesLifecycle.
• 🟡 (17:01) The candidate pipeline changes match terminal output items to streamed items by output identity/index, preserve reference lifecycle tracking with { id: string; done: boolean }, and throw when terminal reasoning summaries differ from the tracked streamed lifecycle.
• 🟡 (17:01) Added tests in packages/gateway/test/openai-responses-recall-aware-stream.test.ts cover: live event forwarding with no recall and no header hold-back; principal streams containing only an added reasoning summary; completed reasoning output; recall and follow-up behavior; nested function-call arguments; ensuring private reasoning summaries are absent from client output and completion records; iterator and findIndex edge cases via vi spies; oversized summaries in both added and done events; forged unsupported response.reasoning_summary_private.done events; principal-versus-follow-up recall counts; sparse summary indexes including summary_index: 16; and terminal summaries changed after streaming.
• 🟡 (17:01) Candidate privacy tests assert that a private summary string and a separate secret do not appear in serialized output or completion records, including malformed or forged reasoning-summary event paths.
• 🟡 (17:01) Candidate stream-kind tests expect recall count 0 for a principal stream and 1 otherwise, while tracking follow-up invocation counts and completion success.
• 🟡 (17:01) The displayed candidate diff artifact ends at line 1,458.