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 v2.1.219 Home All releases olderv2.1.218 v2.1.220newer
Claude Code v2.1.219

Telemetry values routed through explicit sanitiser wrappers

Under the hood
Useful1 Signal0
Telemetry

Telemetry values now pass through marker helpers that declare them safe; nothing sent actually changed.

What

Several telemetry values are now tagged at the call site with marker helpers that declare them safe to emit, with no change to what is actually sent.

Details
  • Three new identity-function helpers: one for nullable values coerced to string, one for joining an array, and one that validates each array element against the ID pattern ^[A-Za-z0-9_-]{1,128}$ before joining.
  • The plugin telemetry id now passes through one of these wrappers. That id is still a sha256 of plugin@version salted with a fixed string and truncated to 16 hex characters.
  • The hashing is unchanged and the wrappers return their input unmodified, so there is no runtime behaviour change in this build.
Evidence

claude-plugin-telemetry-v1

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

See this entry in the whole of v2.1.219 →