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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.

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Claude Code v2.1.233

Entrypoint and SDK version are sanitized before being reported

Under the hood
Useful2 Signal3
Telemetry not in their notes

Your entrypoint and SDK version are checked against known values before being reported.

CLAUDE_CODE_ENTRYPOINTCLAUDE_AGENT_SDK_VERSION
What

Request metadata used to pass the raw CLAUDE_CODE_ENTRYPOINT and CLAUDE_AGENT_SDK_VERSION environment values through untouched. The entrypoint is now checked against a known list and reported as "other" if unrecognised, and the SDK version must match a version pattern or is reported as "other" or "none", with "unknown" allowed through. Arbitrary environment strings no longer reach the payload.

Evidence

agentSdkVersion

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.233 →