Video Loop

Prepare a background video with an optional end-to-start crossfade and MP4/WebM encoding. Verify repeated playback before claiming an invisible transition; motion and source continuity can still make the join visible.

All ffmpeg work happens in scripts/video-loop.sh — this skill validates inputs, optionally helps pick a good fade duration, invokes the script, and turns the script's summary into a human-readable report.

Parameters

Flag	Default	Description
`-d <seconds>`	`1.5`	Crossfade duration in seconds
`-q <crf>`	`26`	H.264 CRF — 18 = high quality, 28 = smaller file
`-w <crf>`	`32`	VP9 WebM CRF
`-o <dir>`	Same as input	Output directory
`-p`	off	Also extract a poster frame (first frame as JPEG)
`-C`	off	Disable the crossfade — optimize and encode only (`-n` accepted as a deprecated alias)

No -s/-S save-mode flag. Unlike media-cluster siblings (/audio-loop, /markitdown), video-loop outputs are web assets (MP4 / WebM / poster) the user drops directly into their site's video directory. No downstream skill consumes video files via -f, so the ~/.agents/output/<skill>/<project>/ convention would add ceremony without enabling anything — -o <dir> is the direct path.