f7436903f0
boulderState?.session_ids.includes() only guards boulderState, not session_ids. If boulder.json is corrupted or missing the field, session_ids is undefined and .includes() crashes silently, losing subagent results. Changes: - readBoulderState: validate parsed JSON is object, default session_ids to [] - atlas hook line 427: boulderState?.session_ids?.includes - atlas hook line 655: boulderState?.session_ids?.includes - prometheus-md-only line 93: boulderState?.session_ids?.includes - appendSessionId: guard with ?. and initialize to [] if missing Fixes #1672