delivery-telemetry §6.6 reads a CMSD field back into the description
§6.1 to §6.3 write, passing over other senders' keys, and refuses with
cmsd_malformed, cmsd_type or cmsd_version; §10 lists the extension's
CMCD and CMSD custom keys in full, and the registry lists each as a wire
identifier of the new kind telemetry-key (and WPJ1, the projection
descriptor's magic). telemetry-conformance/cmsd-read/ holds the fields
and their outcomes; cmsd_read_verify.py is the second implementation.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
51fda19882