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gstack

Drive a headless browser to interact with UI and capture annotated screenshots and diffs.

3|3|Updated Mar 26, 2026
Search Tags:#automation#screenshots#qa#diff#playwright#browser
One-click install
npx skills add https://github.com/tsensei/ReelMistri --skill gstack-tsensei
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: gstack
Source: https://github.com/tsensei/ReelMistri/tree/main/.claude/skills/gstack
Command: npx skills add https://github.com/tsensei/ReelMistri --skill gstack-tsensei

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

gstack provides a fast, headless browser-based QA environment that lets Claude Code drive real interactions, verify state, and capture evidence across deployments.

Core Features & Use Cases

  • Navigate pages and interact with elements
  • Diff before/after to verify changes and capture bug evidence
  • Annotated screenshots and responsive tests to document issues

Quick Start

Open a target URL, interact with the page, and capture an annotated screenshot plus a diff for evidence.

Frequently Asked Questions about gstack

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I automate QA testing with a headless browser in Claude Code?▼

Automate QA testing by using a headless browser to navigate URLs, interact with UI elements, and verify application state. This workflow operates on a target URL to perform form submissions, uploads, and responsive checks within your Claude environment.

Can I capture screenshots and visual diffs for bug evidence using Playwright?▼

Yes, you can capture screenshots and visual diffs for bug evidence using Playwright. The automation script navigates pages, interacts with elements, and produces annotated screenshots alongside before and after diffs to document UI issues.

What is the best way to verify UI state and document issues across deployments?▼

The best way to verify UI state across deployments is driving a headless browser to interact with elements and capture evidence. You navigate a target URL, perform responsive checks, and generate annotated screenshots plus visual diffs for validation.

Does gstack require external dependencies to run responsive checks and form uploads?▼

No external dependencies are required to run responsive checks and form uploads. The Skill operates independently within your Claude Code environment, driving a headless browser to interact with pages and validate state without extra setup.

Why use a headless QA browser for automated testing instead of manual checks?▼

Use a headless QA browser for automated testing to quickly verify changes and capture bug evidence. It automates interactions like form submissions and uploads, producing visual diffs and annotated screenshots that manual checks cannot generate efficiently.

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