Demo Video

What it does

When your agent uses it

• The user asks to create a demo video
• Product walkthrough
• Feature showcase
• Animated presentation

Example prompts

• “make a demo video”
• “create a product video”
• “demo walkthrough”
• “/demo-video”

Requirements

• Python 3
• Compatibility (from SKILL.md): Designed for Claude Code
• Pre-approved tools (allowed-tools): Read, Write, Edit, Bash(uv:*), Glob

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

1. 1Story design -- Choose a narrative arc (problem-solution, hero journey, before-after)
2. 2Scene authoring -- Write HTML scenes with CSS animations, or use built-in templates
3. 3Rendering -- Playwright captures frames, Edge TTS generates voiceover, FFmpeg composites

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Read
  • Write
  • Edit
  • Bash(uv:*)
  • Glob

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • uv
  • claude
  • ffmpeg
  • brew

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Links to these hosts (documentation or services it may open):

  • github.com
  • learn.microsoft.com
  • playwright.dev
  • ffmpeg.org

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

• Compatibility

  Designed for Claude Code

  From compatibility in the SKILL.md frontmatter.

Context cost

Demo Video loads about 953 tokens when it runs. Until then it costs about 71 tokens; SKILL.md has 265 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~71

When it runs · the whole SKILL.md, loaded when a task matches

~953

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 265 words, ~953 tokens.

name

demo-video

description

Generate polished demo videos from a single prompt. Use when the user asks to create a demo video, product walkthrough, feature showcase, or animated presentation. Trigger with "make a demo video", "create a product video", "demo walkthrough", or "feature showcase video".

allowed-tools

Read, Write, Edit, Bash(uv:*), Glob

compatibility

Designed for Claude Code

version

1.3.0

author

Srinivas Vaddisrinivas <vaddisrinivas170497@gmail.com>

license

MIT

tags

video, demo, playwright, ffmpeg, edge-tts, mcp

claude plugin marketplace add jeremylongshore/claude-code-plugins-plus-skills
claude plugin install framecraft@claude-code-plugins-plus

uv run python framecraft.py init my-demo        # scaffold a project
uv run python framecraft.py render scenes.json --auto-duration
uv run python framecraft.py validate output.mp4  # quality check

{
  "scenes": [
    {
      "title": "Meet YourApp",
      "subtitle": "The smarter way to manage tasks",
      "narration": "24 tasks. One dashboard. Zero stress.",
      "voice": "en-US-AndrewNeural",
      "bullets": ["Smart priorities", "Team sync", "One-click reports"],
      "duration": 0
    }
  ],
  "output": "demo.mp4",
  "width": 1920, "height": 1080,
  "voice": "en-US-AndrewNeural",
  "transition": "crossfade"
}

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/.curated/demo-video of jeremylongshore/tons-of-skills-marketplace.

Open the folder on GitHubat commit cfae287