video-demo

video-demo is a skill for Claude Code from datit309/supergraph. It costs 112 tokens per session (2,331 once invoked), scanned A, original, MIT.

A workflow for recording narrated demonstrations of web applications, either from a live URL or from a repository it builds and mocks. It creates screen recordings with cursor movement, zooms, voice-over, screenshots and a full-tour video.

In plain words
What is it for?
Use it for product demos, feature walkthroughs, landing-page footage and app screen recordings. It uses Playwright to control a Chromium browser during filming.
Why use it?
It provides a repeatable way to show how a web app works without manually recording each walkthrough. It can capture a working build or a prepared mock when the real backend is unavailable.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Claude Code; mentions Codex.

Part of the supergraph plugin — 43 skills, 7 agents, 6 hooks shipped together

Good fit Use it for product demos, feature walkthroughs, landing-page footage and app screen recordings. It uses Playwright to control a Chromium browser during filming.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/datit309/supergraph/video-demo
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add datit309/supergraph --skill video-demo
Clone the repo
git clone --depth 1 https://github.com/datit309/supergraph

Made for: Claude Code.

Or install supergraph, the plugin that ships this one along with the rest of its 43 skills, 7 agents, 6 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for video-demo

README.md
[![agentmods](https://agentmods.dev/badge/skills/datit309/supergraph/video-demo/github.svg)](https://agentmods.dev/skills/datit309/supergraph/video-demo)
Your own site
<a href="https://agentmods.dev/skills/datit309/supergraph/video-demo"><img src="https://agentmods.dev/badge/skills/datit309/supergraph/video-demo/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for video-demo

Your own site · 80×15
<a href="https://agentmods.dev/skills/datit309/supergraph/video-demo"><img src="https://agentmods.dev/badge/skills/datit309/supergraph/video-demo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 112 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,331 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00112 $0.02331
Opus 5.5 $0.00045 $0.00932
Sonnet 5.5 $0.00022 $0.00466
Haiku 4.5 $0.00011 $0.00233

Measured 4d ago against content hash 2fcce29d9fa1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

video-demo scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

The scan reads SKILL.md. This mod also ships 27 executable files (engine/pin-build.mjs, engine/playwright.demo.ts, engine/run.mjs, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/supergraph/skills/video-demo/SKILL.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/supergraph:video-demo

Films a web app as narrated, zooming, cursor-driven demo videos with retina screenshots, either from a repo it builds and mocks or from a live URL as it is served. Powered by Kokoro local voice-over, smooth camera zooms, natural cursor paths, and Playwright Chromium.

Announce: "🎬 /supergraph:video-demo — filming narrated, zooming, cursor-driven demo videos with retina screenshots..."

Invocations

  • Claude Code & Codex: /supergraph:video-demo [instructions]
  • DeepSeek Harness (DSH) & Antigravity: /video-demo [instructions] or skill(name="video-demo")
  • CLI Binary: sg-video-demo or npx supergraph sg-video-demo

Overview

scripts/demo films a web app and writes demo-out/ into that project's workspace: per scene an mp4 with voice-over, a poster, retina stills, plus full-tour.mp4, manifest.json and index.html. All local. The engine runs from this skill; nothing is installed into the app being filmed.

Non-negotiables

Each of these cost a run or a user's patience.

  1. A pinned build, never a dev server. Its module graph belongs to whoever is editing source. Copy it somewhere private and verify its API base by reading the bundle. A URL with no repo behind it is site mode; a URL on localhost is a dev server and is never filmed.
  2. In build mode, mock every request in-process and pin the clock. A corpus gets published, and a real account publishes real people's addresses. site mode trades both away knowingly: public pages only.
  3. Own your port and output directory. The studio refuses to adopt a server it did not start. Never pkill by pattern.
  4. 1080p60 video, 2x stills. They are separate settings. 4K video judders because throughput is a fixed pixels-per-second budget.
  5. Do the gesture, then narrate while pushed in on the result. One subject per line. Never narrate before the subject exists. Where the app has its own timer — an undo window, a toast — the gesture goes inside it and the words after, or the film shows a feature that does not work.
  6. One scene, then stop and ask (step 8). It caught four defects before twenty-six more scenes were filmed.
  7. Read the PNG, every time. A scene that passes while framing the wrong thing is a failure, and only an eye on the still catches it.
  8. Nothing is final until they say so. Any note about the words, the framing, the pace, what is covered or the voice is a re-film, not a negotiation: change it and film it again. They cannot see what you can, so "too long", "zoom in more" and "stop zooming so much" are all complete instructions, and a scene is cheap to shoot twice.

Read the full file on GitHub · 156 lines

Files

What ships with it

40 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 156 lines · 112 tokens per session scan A 2fcce29d9fa1

Subscribe to this mod's changes

video-demo is a skill published in the GitHub repository datit309/supergraph (23 stars, last pushed 5d ago), licensed MIT. It adds 112 tokens to every session and 2,331 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-24.

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