Distillation

Date: Sep 16, 2026

• 🟡 (22:35) User supplied additional read-only diff context for the resumed correctness review, covering packages/gateway/src/pipeline.ts and related tests.
• 🟡 (22:35) The packages/gateway/src/pipeline.ts context included Responses lifecycle validation and errors: invalid Responses output_index for ${event}, "Responses output message must have assistant role", missing Responses lifecycle for index ${outputIndex}, "invalid Responses reasoning summary part", and "Responses reasoning summary must be an array".
• 🟡 (22:35) The diff context showed reasoning-summary state comparisons involving summaryState.authoritativeValueSeen, summaryState.finalValue, and finalPartValue.
• 🟡 (22:35) The diff context included continuation-merging structures and operations such as heldContinuationEvents, parsedRecallInputs, contUnresolvedToolIndices.delete(...), and referenceIdentities.has(item.id).
• 🟡 (22:35) Related test context included test("merges high-cardinality continuation output without cross-product identity scans", async () => { ... }), a completion event for "resp_sparse_identity_scale", maxSSEFrames: 16, response.body.getReader(), reasoning ID builders, and repeated output_index: 0.
• 🟡 (22:35) The test fixture included a reasoning summary part { type: "summary_text", text: "tracked summary", private: marker }.