gstack

Name: gstack
Availability: InStock
Author: steffenpharai

Automate end-to-end QA testing of web apps with Playwright and Bun.

Updated Aug 23, 2026

Search Tags:#automation #testing #screenshots #qa #diff #playwright #headless

Ready to run

npx skills add https://github.com/steffenpharai/StartupFramework --skill gstack-steffenpharai

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: gstack
Source: https://github.com/steffenpharai/StartupFramework/tree/main/.claude/skills/gstack
Command: npx skills add https://github.com/steffenpharai/StartupFramework --skill gstack-steffenpharai

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

Automates end-to-end QA testing of web apps by driving a headless browser and validating page state.

Core Features & Use Cases

Headless navigation, interaction, and content verification across environments
Diffing page states to validate that actions had the intended effect
Annotated screenshots to document UI status and issues
Global QA dogfooding: run real user flows and catch regressions before deploy

Quick Start

Validate a URL by launching the headless QA browser and performing a simple check.

Frequently Asked Questions about gstack

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

FAQPage Schema

How do I automate headless browser testing for web apps?▼

Automate headless browser testing by driving navigation, form interactions, and content verification across environments. This approach validates page state and outputs textual diffs alongside annotated screenshots as evidence.

Can I capture visual diffs and screenshots during Playwright end-to-end QA?▼

Yes, you can capture visual diffs and screenshots during Playwright end-to-end QA. The process annotates screenshots to document UI status and diffs page states to validate that actions had the intended effect.

Do I need Playwright and Bun installed to run headless QA automation?▼

Yes, you need both Playwright and Bun installed locally to run headless QA automation. These dependencies drive the headless browser, execute scripts, and generate the resulting textual diffs and screenshot evidence.

What is the best way to validate page state and catch regressions before deploy?▼

The best way to validate page state and catch regressions before deploy is running real user flows through global QA dogfooding. This headless navigation approach extracts content and verifies interactions across environments.

How does content extraction and form interaction validation work in headless mode?▼

Content extraction and form interaction validation works by driving a headless browser to navigate web apps and interact with forms. It then diffs the page states to validate that specific actions had the intended effect.

What are the limitations of relying on headless browser automation for testing?▼

A limitation of headless browser automation is its reliance on local Playwright and Bun environments. While it provides textual diffs and annotated screenshots, complex visual rendering across different environments may still require manual review.