Distillation

Date: Sep 16, 2026

• 🔴 (22:47) User provided a further packages/gateway/src/pipeline.ts segment covering approximately lines 10131-11235, including principal-failure categorization, visible-output index tracking, recall interception, hidden-recall byte accounting, continuation execution, rollback, and streamed-reasoning preservation.
• 🔴 (22:47) User directed that stream events must always accumulate into the internal state for postResponse; this requirement is explicitly repeated in comments near lines 10387, 10491, and 11058.
• 🔴 (22:47) The shown code includes PrincipalFailureCategory, visibleOutputIndices, recallIndices, hiddenRecallBytes, unresolvedToolBytes, SSEStreamLimitError, and preserveStreamedReasoning(state, outputIndex).
• 🔴 (22:47) Recall continuation rejects parallel recall with throw new RecallContinuationFailure("parallel_recall"); near line 10766.
• 🔴 (22:47) Recall continuation rejects an absent recall block with throw new RecallContinuationFailure("missing_recall_block"); near line 10816.
• 🔴 (22:47) The continuation logic checks executed.rollback and uses executed.anchorText.