Long-form video skill
Plans and makes a long-form video chapter by chapter: a script with each chapter's words on screen, picture and narration, one picture per chapter in one look, a voiceover per chapter, and an edit that puts them together with any screen recordings. Use for product demos and walkthroughs, explainers, launch films, webinar intros and course lessons.
A SKILL.md for Claude Code, Codex and any agent that reads skills. It’s the craft behind Fil’s Long-form product video workflow, written out so your agent can follow it too.
Install it
Unzip it into your agent’s skills folder. The agent reads its name and description, and the rest only when a task needs it.
curl -fsSL https://fil.design/skills/long-form-video.zip -o /tmp/long-form-video.zip && unzip -o /tmp/long-form-video.zip -d ~/.claude/skillscurl -fsSL https://fil.design/skills/long-form-video.zip -o /tmp/long-form-video.zip && unzip -o /tmp/long-form-video.zip -d ~/.codex/skillsInstall the Long-form video skill from https://fil.design/skills/long-form-video: unzip https://fil.design/skills/long-form-video.zip into your skills folder (~/.claude/skills for Claude Code, ~/.codex/skills for Codex), then read its SKILL.md.The skill
Read first
Script.md for the video: its title, what kind of video it is, who it's for, the one idea, the look, the voice, and every chapter's words on screen, picture and what's said; the style reference and logo wired in.
The script
- Chapters sized to what the video has to say: about 20 to 30 seconds each, one point each, in the order a viewer's questions come (a product demo: the problem, the product, how it works step by step, what it's like to use, the proof, how to start; an explainer: the question, the idea, how it works, an example, what it means; a lesson: the goal, each step, the recap).
- The first chapter opens it: the title and the promise. The last closes it: one line to remember, new words rather than the title again, and what to do next.
- Say: what the narrator reads aloud, 50 to 75 words, in plain spoken sentences in the script's voice, each chapter picking up where the last one ended. Written as it's said: no headings, notes, stage directions or symbols, and a site spelled as it's spoken ("fil dot design").
- On screen: at most eight words, usually two to five, spelled exactly as Script.md writes them.
- Picture: one strong picture that carries the chapter's point (a metaphor, a scene, an object, the product at work), new each chapter: never the same scene twice, nor the same layout under new words.
One look on every picture
- The wired Chapter 1's look on every chapter: the same background, typefaces, colours, margins and kind of picture, as if one designer made them all, in the video's shape.
- The words set big on the picture's calm side, clear of the frame's edges, which a slow push-in crops a little.
- Each picture's words exactly as its prompt gives them, and no other words anywhere: no captions, footers, page numbers, labels, logos or made-up interface text.
- Only the first chapter carries a small line under its title (who's behind it, the event), and only the last one where to find them; the chapters between carry their own words alone.
- The last chapter's picture pays off the first chapter's picture: the same things, shown whole, in clear light.
- An app or website appears as its world or a crafted object that stands for it, never as a made-up screen: real screens come from the screen recordings dropped into Footage.
Voiceovers
Each chapter's Say line, read word for word in one voice for the whole video.
The edit
Each chapter lasts as long as its voiceover and a beat: its picture first with a slow push-in, then its footage if it has any, the voiceover starting 0.4 seconds in, 0.4-second dissolves between them, fading in at the start and out at the end. Captions are made in the video editor, from the voiceovers, when they're wanted.
Avoid
Walls of text, bullet lists, small type, a picture in a different style, misspelled words, made-up interface, clip-art, stock-photo clichés and numbers Script.md doesn't give.
What it reads
It was written for Fil’s Long-form product video workflow, which wires these into every step. Elsewhere, give your agent the same, or let it ask.
- Script.mdThe video, the look, the voice and each chapterBrief
- Style referenceA picture whose look every chapter’s picture follows.Optional
- LogoYour logo, for the first and last chapters.Optional
- FootageA screen recording or clip of what this chapter shows. It plays after the chapter’s picture, without its sound.Optional
Questions
What does the Long-form video skill do?
Plans and makes a long-form video chapter by chapter: a script with each chapter's words on screen, picture and narration, one picture per chapter in one look, a voiceover per chapter, and an edit that puts them together with any screen recordings. Use for product demos and walkthroughs, explainers, launch films, webinar intros and course lessons.
How do I install it in Claude Code?
Download https://fil.design/skills/long-form-video.zip and unzip it into ~/.claude/skills, or into a project’s .claude/skills folder, or run the command on this page. Claude Code reads the skill’s description and loads the rest when a request needs it.
Does it work in Codex and other agents?
Yes. Unzip it into ~/.codex/skills for Codex. It’s one SKILL.md file, so any agent that reads skills can use it, and you can paste it into a chat as well.
Do I need Fil to use it?
No. It was written for Fil’s Long-form product video workflow, which wires in Script.md, Style reference, Logo and Footage: give your agent the same, or let it ask. In Fil, the workflow runs it with the best models and shows the price before anything runs.
Is it free?
Yes. The skill is free to download.
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