Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.265,
Internal ChangesSection of the release
What
The telemetry event tengu_prompt_cache_diagnosis_received, which records diagnostic information about Claude Code's prompt cache, now checks the diagnosis type against a list of recognized values before recording it. If the type isn't on that list, the event now sends the literal value other instead of the raw, unrecognized string.
Why
This keeps the telemetry data clean and predictable by preventing arbitrary or unexpected diagnosis-type strings from being recorded verbatim.
