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CLI Demo Generator

Turns shell commands into polished animated terminal GIFs using VHS tape recordings.

Image & VideoIntermediate1,419219AI score 9/10Last updated: Sep 22, 2026

What it does

  • Takes a list of commands and generates a VHS .tape file, then renders it into an animated GIF.
  • Builds self-bootstrapping demos where cleanup/setup commands run hidden via the HideclearShow pattern.
  • Handles real-world pain points: filtering noisy output, base64-encoding commands that VHS's parser rejects ($, backticks), speeding up GIFs with gifsicle, and verifying frames with ffmpeg.
  • Supports batch generation from a YAML config and live interactive recording via asciinema.

Who it's for

  • Open-source maintainers who need demo GIFs in their README.
  • Developers and DevRel folks documenting install/build/deploy flows visually.
  • Teams that want a reproducible demo pipeline instead of hand-recording every time.

Examples

  1. "Make a 1400x600 README GIF of npm install my-package then npm run build, sped up 2x."
  2. "Reset the previous install state before recording, but keep it out of the GIF" → uses --bootstrap.
  3. "Check frame 100 of the generated GIF to confirm the output rendered correctly" → ffmpeg frame extraction plus image review.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/daymade/claude-code-skills/HEAD/cli-demo-generator/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the cli-demo-generator folder from the GitHub repo daymade/claude-code-skills into my ~/.claude/skills/cli-demo-generator/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/daymade/claude-code-skills.git /tmp/ccs && mkdir -p ~/.claude/skills && cp -r /tmp/ccs/cli-demo-generator ~/.claude/skills/

This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Install VHS: brew install charmbracelet/tap/vhs (on Linux, grab the binary from GitHub Releases).
  3. Install optional tools: brew install gifsicle ffmpeg asciinema.
  4. Clone the repo: git clone https://github.com/daymade/claude-code-skills.git /tmp/ccs
  5. Copy the skill folder: mkdir -p ~/.claude/skills && cp -r /tmp/ccs/cli-demo-generator ~/.claude/skills/
  6. Restart Claude Code, then ask something like "record a demo GIF of these commands" to trigger the skill.