What problem does it solve? Rendered demo videos often ship with hidden defects — empty states, clipped text, exposed secrets, A/V desync, or placeholder graphics — because nobody systematically inspects the output before release. This Skill provides a structured QA pass that samples frames from the rendered video and grades every section against its declared success criteria. ## Core Features & Use Cases - Frame-based inspection: Extracts labelled frames and a contact sheet from the rendered MP4, then delegates detailed reading to a frame-critic subagent to keep token usage low. - Three-tier rubric: Grades findings as blocking (errors, secrets, failed takes), serious (desync, clipped text, placeholder data), or quality issues (pacing, cursor movement, music balance), with a full checklist in the bundled QA rubric reference. - Criteria-driven grading: Maps frames to timeline sections using startFrame/durationInFrames and verifies each section's successCriteria, including Final Cut Pro finishes with MotionVFX graphics. - Use Case: After rendering a draft product demo, run this Skill to get a ranked findings list with section IDs, timestamps, severities, and the exact pipeline stage to re-run — plus a plain shippable/not-shippable verdict. ## Quick Start Review the rendered video at demo/out/demo-draft.mp4 and tell me whether it is ready to ship.
