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gstack

Automate browser-based QA testing with Playwright CLI snapshots, diffs, and screenshots.

Updated Aug 23, 2026
Search Tags:#qa#diff#playwright#browser#screenshot#snapshot
One-click install
npx skills add https://github.com/harsh-pandhe/pod-transit --skill gstack-harsh-pandhe
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: gstack
Source: https://github.com/harsh-pandhe/pod-transit/tree/main/.agents/skills/gstack
Command: npx skills add https://github.com/harsh-pandhe/pod-transit --skill gstack-harsh-pandhe

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Automates browser-based QA testing and visual evidence capture to speed up verification and reduce manual steps.

Core Features & Use Cases

  • Headless browser control via a CLI with deterministic behavior
  • Snapshotting with accessibility refs for precise element targeting
  • Diffing, targeted screenshots, and visual reports of page changes
  • Interaction support: click, fill, type, scroll, and form handling
  • Real-world workflows: QA testing, design validation, and regression checks

Quick Start

Launch gstack, navigate to a URL, snapshot the page, and export diffs and screenshots.

Frequently Asked Questions about gstack

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

FAQPage Schema
How do I automate browser-based QA testing and capture visual evidence?▼

Headless browser QA testing involves running a CLI tool to control a browser without a UI. It applies Playwright to navigate URLs, interact with elements via accessibility refs, and generate snapshots, diffs, and screenshots for design validation and regression testing.

How do I generate and diff screenshots to check for visual regressions?▼

To generate and diff screenshots, navigate to a URL and take a snapshot of the page. The workflow produces visual reports of page changes by comparing current screenshots against previous ones, allowing you to quickly identify layout and design regressions.

Can I use Playwright to target specific elements during QA testing?▼

Yes, you can target specific elements during QA testing by using snapshotting with accessibility refs. This allows precise element targeting for interactions like clicking, filling, typing, and scrolling through forms and page layouts deterministically.

Does headless browser testing support form interactions like click and fill?▼

Headless browser testing supports interaction handling including click, fill, type, scroll, and form handling. It provides a deterministic CLI workflow using Playwright to automate these real-world QA testing and design validation tasks safely.

What are the limitations of using a headless browser CLI for regression testing?▼

A limitation of using a headless browser CLI for regression testing is that it runs without a visual UI, relying entirely on deterministic CLI behavior and accessibility refs for element targeting. It is designed for rapid QA and plan-mode-safe guards rather than manual visual exploration.

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