Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.233,
Internal ChangesSection of the release
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.