Names the domain (videos) and some actions (extract frames, short clips) with a specific tool (ffmpeg), but doesn't list more comprehensive capabilities like format conversion, time range selection, or output options.

Describes what the skill does but completely lacks a 'Use when...' clause or any explicit trigger guidance, which per the rubric caps completeness at 2, and the 'what' is also fairly minimal, placing this at 1.

Includes relevant keywords like 'frames', 'clips', 'videos', and 'ffmpeg' that users might naturally say, but misses common variations like 'screenshot from video', 'thumbnails', 'video extraction', 'keyframes', or file extensions like '.mp4', '.avi'.

The combination of video frame/clip extraction with ffmpeg is a clear, specific niche that is unlikely to conflict with other skills. The mention of ffmpeg and the specific actions of extracting frames or clips makes this quite distinct.

Very lean and efficient. No unnecessary explanations of what ffmpeg is or how video frames work. Every line serves a purpose.

Provides concrete, copy-paste ready bash commands with clear flag usage (--time, --out) and two practical examples covering the most common use cases.

This is a simple, single-purpose skill (extract a frame). The single action is unambiguous with clear commands, and there are no destructive or batch operations requiring validation checkpoints.

For a skill under 50 lines with a single focused task, the content is well-organized with a quick start section and concise notes. No external references are needed given the simplicity.