A new guard skips autocompaction entirely for query sources of type side_question or extract_memories when the effective context window is at least 1,000,000 tokens and that window wasn't set via env or settings config. This is a live behavioral change, not gated behind an experiment flag, and is reachable whenever CLAUDE_CODE_REMOTE isn't restricting the session.
Autocompaction now skips huge-context side-question/extract-memories subagent calls
Autocompaction now skips huge-context side-question and memory-extraction subagent calls entirely.
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
CompactionArea: what it touches
ImprovementsKind: in v2.1.260,
ImprovementsSection of the release