Under the hood
New telemetry fires when auto-mode context is too large and gets withheld entirely.
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.