video-extend

Continue existing video clips with consistent motion, lighting, and identity using Google Veo 3-1.

- Routes to two endpoints: full-quality extend-video for hero shots and final delivery, or faster fast/extend-video for cost-controlled iteration and drafts

- Accepts a source video URL and a prompt describing what happens next; the model generates a continuation clip that maintains physics, framing, and subject consistency

- Supports chaining multiple extend calls shot-by-shot to build longer narratives, with identity holding reliably across 3–4 consecutive extends

- Prompts should anchor camera movement explicitly and describe only the next beat, not re-describe the existing scene; one main action per extend call yields best results

Video Extend

Continue an existing video clip past its per-call duration cap, or chain a narrative shot-by-shot from a single seed. This skill routes to Google Veo 3-1's extend-video endpoints and ships the documented prompting patterns + the exact runcomfy run invoke.

runcomfy.com · Veo 3-1 extend-video · CLI docs

Powered by the RunComfy CLI

# 1. Install (see runcomfy-cli skill for details)
npm i -g @runcomfy/cli      # or:  npx -y @runcomfy/cli --version

# 2. Sign in
runcomfy login              # or in CI: export RUNCOMFY_TOKEN=<token>