Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.225 Home All releases olderv2.1.224 v2.1.226newer

Telemetry event schema drops repl_code and git_remote_url, adds MCP and auth fields

You'll notice
Useful3 Signal0
Telemetry

Usage reporting stops sending your repo remote URL and adds MCP server and tool names.

What

The protobuf-shaped event metadata changes which fields it carries, removing two code and repo identifiers and adding MCP identity plus reported account details.

Details
  • Removed: repl_code and git_remote_url.
  • Added: mcp_server_name, mcp_tool_name, an optional event_metadata_vars string, and a client_reported_auth submessage carrying account_uuid and organization_uuid.
  • The experiment-exposure message separately gains variation_key, and user_attributes / experiment_metadata become optional, serializing as undefined rather than an empty string.
Evidence

client_reported_auth

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.225 →