ffmpeg

Transform audio and video files with ffmpeg and inspect them with ffprobe. Operations are non-destructive: always write to a new output file. Re-encoding can be slow on long media — set realistic expectations.

Setup health check (run first, every session)

Verify with one solo step:

[{ "tool": "os.shell.run", "args": { "cmd": "ffmpeg", "args": ["-version"] } }]

Outcome map:

• exit 0 + version → ready, proceed.
• command not found: ffmpeg → enter Setup playbook → "ffmpeg missing".

Setup playbook (when prerequisites are missing)