The Claude host trailer and the resolver fallback (cursor, kiro, opencode,
slate) signed commits as 'Claude Opus 4.7' whatever model ran. Both now read
'Co-Authored-By: Claude <noreply@anthropic.com>' so the trailer cannot go
stale at the next model release (the s11 report offered this neutral form;
s03 M10's hunk uses it). document-release's release body renders the same
{{CO_AUTHOR_TRAILER}} and follows on regeneration.
test/host-config.test.ts:589 only requires 'Claude' and stays green. Goldens
move on regeneration (not committed). expected red until the regeneration commit
garrytan
7e7307e650