Takes an existing video clip and generates more frames that continue it, using Google Veo 3-1's extend endpoints via the RunComfy CLI. Useful when you hit the per-call duration cap on a generated clip or when you want to build a narrative shot by shot without re-generating from scratch. The full endpoint maintains identity and lighting consistency across extends; the fast variant trades quality for iteration speed. Prompting works best when you describe only the next beat rather than re-describing the entire scene, and you anchor the camera explicitly to avoid drift. Chain consecutive extends for longer sequences, though identity coherence degrades after three or four generations.
npx skills add https://github.com/runcomfy-com/skills --skill video-extend