Re-review #7682 (nesquena-hermes 2026-09-22T19:18:00Z, CHANGES_REQUESTED).
`_transcript_already_advanced_past_pending` suppressed recovery on a
transcript-only heuristic: the first assistant row with final visible text
inside the pending turn's boundary. An interrupted multi-segment turn shaped
like
user -> assistant "Let me check the logs first." (unflagged interim prose)
-> tool -> tool ... (stream dies here)
passed the predicate as "finished" even though the interim sentence is not a
final answer and the stream was cut off mid-tool. `_apply_core_sync_or_error_marker`
then cleared pending state and returned early: the run journal was never
replayed and no interruption marker was added — a half-finished turn rendered
as complete, journaled tool output never appearing.
Fix: a genuine final answer inside the turn is now NECESSARY BUT NOT
SUFFICIENT. The suppression also requires durable same-stream terminal
evidence — `_run_journal_terminal_state(session, active_stream_id) == 'completed'`
(a `done`/`stream_end` event). Without it, fall through to the normal
journal-recovery path so the partial output is replayed and the interruption
is marked.
Regression tests (red/green verified — both fail with the gate removed):
- test_does_not_advance_when_unflagged_interim_prose_precedes_tools
- test_full_recovery_runs_journal_replay_for_unflagged_interim_prose
(drives `_apply_core_sync_or_error_marker`, asserts journal replay +
interruption marker present)
- test_does_advance_when_journal_marked_done_after_interim_prose (positive)
Existing `_FakeSession` fixtures updated to carry a session_id and write a
`done` journal event so the durable-evidence gate is satisfied for the
settled-turn tests.
Verification: test_issue6366 35 passed; anchor_scene + cancelled_turn
neighbours 91 passed. Red/green proven on both regressions.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
