win4r · Claude video skill

video-director

video-director is a Claude skill from win4r for directing, building and verifying short videos written as code (HTML, Canvas, SVG, Three.js, GSAP or Remotion) and rendered frame by frame to MP4. It is built mainly for Claude Opus 5.5 in Claude Code, and the README says other capable coding agents can follow the workflow. It is an instruction-and-QA skill, not a bundled model or hosted video-generation service. The skill contains 13 principles, a workflow with a gate at each phase, templates, and two scripts: `check_timeline.py` validates the plan before any code, and `qa_video.py` measures the render (hook text size and contrast, frame 0, flashes, cuts, freezes, loop seam, loudness, silences, contact sheets). In the author's evals, each round ran three briefs once per configuration. Round 1 passed 28/28 assertions with the skill against 25/28 without, and blind graders preferred the skill 2–1 at about twice the time and tokens. Round 2 passed 30/32 against 26/32 for the round-1 skill, preferred 3–0. The author says one run per configuration is a direction, not a measurement. It is released under the MIT licence with 393 stars and no tagged releases. The scripts need ffmpeg and Python with numpy and Pillow, and HTML rendering needs Node with Playwright and Chromium, or Remotion.