Distillation

Date: Sep 16, 2026

• 🔴 (11:06) User modified packages/gateway/src/pipeline.ts, adding imports for cloneResponsesAccState and validateResponsesSourceSequence.
• 🔴 (11:06) The modified Responses pipeline introduces rollbackPendingPrincipalTerminal, snapshots terminal-state data through terminalRecallSnapshot, and can restore recallDetected, unresolved tool-byte state, and related lifecycle state during terminal processing.
• 🔴 (11:06) The modified terminal path explicitly tracks provider-failure conditions through providerFailureTerminal and providerFailureSeen, and conditions the final response output on whether a provider failure occurred.
• 🔴 (11:06) Codex-specific terminal handling was expanded around function-call output inspection and recall detection before assertReferenceLifecyclesComplete(referenceIndices).
• 🔴 (11:06) Continuation streaming now tracks lastContinuationSourceSequenceNumber, reads optional sourceSequenceNumber, and handles continuation terminal error events "error" and "response.error".
• 🔴 (11:06) Finalization now chooses between a preserved/cloned state-derived result and finalizeResponsesAcc(state), while completion logic incorporates principalTransportFailure && principalEventEmitted, unresolved tool indices, and provider-failure output handling.