---
title: "RunwayML Gen-3 Alpha Video Composer"
description: "Composes AI-generated video clips using the RunwayML Gen-3 Alpha API with text-to-video and image-to-video modes. Manages generation tasks, polling, and output stitching via FFmpeg."
verification: "security_reviewed"
source: "https://github.com/FFmpeg/FFmpeg"
author: "FFmpeg"
category:
  - "Image & Creative Automation"
framework:
  - "Claude Code"
tool_ecosystem:
  github_repo: "FFmpeg/FFmpeg"
  github_stars: 58548
---

# RunwayML Gen-3 Alpha Video Composer

Composes AI-generated video clips using the RunwayML Gen-3 Alpha API with text-to-video and image-to-video modes. Manages generation tasks, polling, and output stitching via FFmpeg.

## Installation

Choose whichever fits your setup:

1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/runwayml-gen-3-alpha-video-composer/)