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
Bug FixesKind: in v2.1.309,
Bug FixesSection of the release
What
When it records usage statistics, Claude Code sorts each tool into a category, such as a skill, an MCP tool or a tool added while the session runs. If a tool's name cannot be read, it is now labelled unreadable instead of causing an error. The category labels now come from a single shared list, so their exact wording may have changed.
Why
A tool with an odd name can no longer cause an error in the code that records usage.
