VCR Debugger

Debug VCR failures quickly with a deterministic triage sequence.

Triage Sequence

1. Validate manifest shape and references:
   • vcr check <scene>.vcr
   • vcr lint <scene>.vcr
2. Inspect frame-level state:
   • vcr dump <scene>.vcr --frame <n>
3. Reproduce with a single frame:
   • vcr render-frame <scene>.vcr --frame <n> -o renders/debug_f<n>.png
4. Verify runtime/dependency health:
   • vcr doctor
5. If determinism is in question:
   • vcr determinism-report <scene>.vcr --frame <n> --json