Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
CompactionArea: what it touches
Internal ChangesKind: in v2.1.267,
Internal ChangesSection of the release
What
When Claude Code tries to arm a precomputed (background) compaction, it now checks whether that attempt has already been vetoed. If a session.compact plugin hook previously rejected the compaction, the attempt is skipped, and a veto is recorded whenever a hook-driven compact is skipped this way.
Why
This stops Claude Code from repeatedly trying to precompute the same compaction that a plugin hook keeps rejecting, avoiding wasted work.