You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
TelemetryArea: what it touches
ImprovementsKind: in v2.1.301,
ImprovementsSection of the release
What
Each time Claude Code allows or blocks a tool call (an action Claude takes, such as running a command or editing a file), it can report the decision as a tool_decision telemetry event. Telemetry is usage data you can send to your own monitoring through OpenTelemetry, a standard way of collecting it. These events now include:
permission_mode: the permission mode the decision was made under
Extra fields giving the reason, when the decision came from your configuration
Before, the event carried only the decision, its source, the tool's name and ID, MCP details and the tool's parameters.
Why
If you collect Claude Code telemetry, you can now see which permission mode was active when a tool was allowed or blocked. This only matters if telemetry is turned on.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeAdded classifier_verdict and permission_mode to OpenTelemetry tool_decision events, so auto mode classifier decisions can be told apart from…
