You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
PerformanceArea: what it touches
ImprovementsKind: in v2.1.227,
ImprovementsSection of the release
What
The classifier now picks the cheap built-in heuristic whenever the requested output does not include a summary or state, before it consults CLAUDE_CODE_CLASSIFIER_SUMMARY. Only surfaces that genuinely need a summary pay for a model-backed call.
Evidence
CLAUDE_CODE_CLASSIFIER_SUMMARY
Strings lifted out of the shipped bundle, so the claim above can be checked against them.