Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.295,
Internal ChangesSection of the release
What
A tool use is one action Claude takes, such as editing a file or running a command. When one is rejected, Claude Code already records a usage-data event. That event now also records two durations:
How long the hooks (your own scripts set to run before a tool is used) took
How long the permission decision took
Why
This only adds measurements to usage data. It does not change what Claude can do or what you see.
