Distillation

Date: Sep 16, 2026

• 🔴 (14:05) User stated the gateway must “never forwards response-side item_reference lifecycle events.”
• 🔴 (14:05) User stated the gateway must “never executes recall from an incomplete principal.”
• 🟡 (14:05) Diff output for packages/gateway/test/openai-responses-recall-aware-stream.test.ts showed expanded regression coverage for response-side item_reference lifecycle filtering, materialized item-part indexing, exactly one response.failed SSE event, retained-state byte limits, terminal-flush usage, and principal-reasoning completeness before recall.
• 🟡 (14:05) The incomplete-principal recall regression sequence now includes response.reasoning_summary_text.done with output_index: 0, item_id: "rs_0", summary_index: 0, and text: "reasoned" before recallCall(1, { query: "architecture" }) and the subsequent response.output_item.done.