PR #22503 real runtime verification, Linux, Chrome 151 + Playwright 1.60
main: 49a9e80e0b30e3012412bcc564bb5e52e09d1c1d
PR: b164e5826ad7565f347eb9e5a23e98ee17b8c92f
Model: Codex gpt-6.1-sol through local CLIProxyAPI
Repo: /home/user/textconv-verification (real provider-created commits)
Push destination: /home/user/textconv-push.git (no hosted test PR)

main client/server transcript:
request: git.runStackedAction create_pr
action_started: 
phase_started: Preparing PR...
phase_started: Generating PR content...
phase_started: Creating pull request...
action_failed: Source control provider github failed in createChangeRequest: GitHub returned an error: Validation Failed; head invalid
textconv marker: CREATED
actual generated body:
## Summary
- assign the `probe` diff driver to `.doc` files.
- add document and binary files for textconv verification.
- add a release checklist note requiring a rollback contact.

## Testing
- Not run; no verification results were provided.

pr client/server transcript:
request: git.runStackedAction create_pr
action_started: 
phase_started: Preparing PR...
phase_started: Generating PR content...
phase_started: Creating pull request...
action_failed: Source control provider github failed in createChangeRequest: GitHub returned an error: Validation Failed; head invalid
textconv marker: ABSENT
actual generated body:
## Summary
- assign the `probe` diff driver to `.doc` files.
- add launch approval and rollback contact notes.
- add a 16-byte binary file.

## Testing
- Not run; no verification checks were recorded.

Neighbor checks: review diff shows source notes.doc and plain.txt; binary file is listed with 0 line changes; follow-up Codex response rendered "follow-up works".

Capture retry note: a later background fetch replaced local origin/main with the real GitHub main (unrelated history), so a repeat capture failed before generation. Restored the real local base ref and restricted the fetch refspec to the task branch before recapturing. No production source was changed.