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agh-ui-screenshot

Official

Create deterministic UI PNGs with CDP.

Design & Creative#ui testing#cdp#storybook#visual regression#screenshot#headless chrome#font rendering
Authorcompozy
Version1.0.0
Installs0

System Documentation

What problem does it solve?

It solves the problem of flaky and inconsistent UI screenshots caused by Storybook iframes and font-loading race conditions, which makes visual regression comparisons unreliable.

Core Features & Use Cases

  • Deterministic PNG capture via CDP: Drives headless Chrome through the Chrome DevTools Protocol to capture stable screenshots without relying on Chrome’s built-in screenshot behavior.
  • Font-stable rendering: Waits for document.fonts.ready (and a React/Storybook settle window) to avoid mid-FOUT captures and fallback-font artifacts.
  • Flexible target support: Captures Storybook isolation iframes using story-id URL grammar and also captures arbitrary local URLs (including the proposal mock HTML).
  • Batch-friendly workflow: Reuses a single Chrome instance for multiple captures per run and emits per-shot failures as FAIL lines while continuing the batch.

Quick Start

Run: bash .agents/skills/agh-ui-screenshot/scripts/setup-workdir.sh /tmp/agh-ui-screenshot to prepare an isolated workdir for deterministic screenshot capture.

Dependency Matrix

Required Modules

bunchrome-launcherchrome-remote-interfacepython3curl

Components

scriptsreferences

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: agh-ui-screenshot
Download link: https://github.com/compozy/agh/archive/main.zip#agh-ui-screenshot

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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