When the serialized auto-mode context payload (git state, rules, trusted directories, and similar data) exceeds an internal byte ceiling, Claude Code now logs a one-time tengu_auto_mode_context_over_ceiling telemetry event with the byte count. If the assembled context still exceeds the larger byte ceiling even before trimming, the whole context is dropped from the classifier call and a tengu_auto_mode_context_withheld event is fired noting the reason and size.
New telemetry for auto-mode context being withheld entirely
New telemetry fires when auto-mode context is too large and gets withheld entirely.
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Auto ModeArea: what it touches
Internal ChangesKind: in v2.1.261,
Internal ChangesSection of the release