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How to have a coding agent build a demo clip for your product with Agentic Product Demo

Point Claude Code or Cursor at your product and let the skill file drive a shot list and render.

Who it is forA product lead or developer with an existing product codebase who wants a coding agent to draft and render the demo.

The problemWriting a demo composition by hand needs knowledge of the motion rules and the render steps, which slows down a first version.

The outcomeA new composition named after your product, a preview contact sheet and a rendered mp4, with the agent showing its shot list before it writes code.

What you need first

  • Node 20 or later
  • npm
  • A local clone of the repo
  • Roughly 100 MB free for the headless Chromium download on first render
  • Your product's stylesheet or UI source, if you want the demo to match your product

Steps

  1. Clone the repo and run npm install
  2. Open the repo in Claude Code or Cursor so it reads AGENTS.md and the product-demo skill
  3. Point the agent at your product source and let it propose a shot list
  4. Correct the shot list, then let the agent write the composition
  5. Run sh scripts/preview.sh <name> to check the stills, then sh scripts/render.sh <name> <poster-frame> (inferred, check the README)

Prompt for your agent

In the repo Alexwtlf/agentic-product-demo, read AGENTS.md and the product-demo skill, then read the product at <product-path> and propose a shot list before writing code. After approval, build a composition named <name>, render it, and output out/<name>.mp4 and out/<name>-preview/contact.jpg. Verify that the frame gate passes and that button labels match the real UI.

Caveat. The README says the agent should be corrected at the shot list stage, so an unchecked run can produce a flow or copy that the real product does not have.

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