docs(agents): read vendored .repos with git show when sparse-excluded (#22764)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
6490a9e874Theo Browne committed on 10/21/2026, 8:51:51 AM· committed by GitHubparentefdda5e
1 file changedLine totals unavailable