gstack

Launch headless browser sessions to navigate and test web pages.

Updated Apr 4, 2026
One-click install
npx skills add https://github.com/keji94/content-scanner --skill gstack-keji94
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: gstack
Source: https://github.com/keji94/content-scanner/tree/main/.claude/skills/.claude/skills/gstack
Command: npx skills add https://github.com/keji94/content-scanner --skill gstack-keji94

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Testing and validating web applications manually is slow and error‑prone, especially when ensuring responsive layouts, form interactions, and visual regressions across deployments.

Core Features & Use Cases

  • Headless navigation: Open pages, click elements, and evaluate state without a UI.
  • Responsive layout checks: Verify how sites render on different screen sizes.
  • Annotated screenshots: Capture before/after visuals with highlights for bug evidence.
  • Use case example: A developer can run gstack to automatically log into a staging site, perform a workflow, and receive a screenshot package for QA review.

Quick Start

Ask gstack to open a website, perform the required actions, and return an annotated screenshot of the final page.

Frequently Asked Questions about gstack

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

FAQPage Schema
How do I capture annotated screenshots for QA testing using a headless browser?

You can capture annotated screenshots for QA testing by launching a headless browser session to navigate pages, interact with elements, and generate visual outputs with highlights for bug evidence.

What's the best way to verify responsive layouts across deployments without a UI?

Verifying responsive layouts without a UI involves using a headless browser to open web pages and check how sites render across different screen sizes during development and deployment workflows.

How does headless navigation work for automated site dogfooding workflows?

Headless navigation for site dogfooding works by opening pages, clicking elements, and evaluating application state without a graphical interface to validate functionality and user workflows.

Do I need to install any specific tools locally to run headless browser tests?

Yes, you need the gstack tool installed locally to run headless browser tests, which may invoke Bash commands such as gstack, browse, design, bun, and npx during execution.

Can I automate logging into a staging site and return screenshots for QA review?

Yes, you can automate logging into a staging site by running a headless browser to perform the required workflow and receive a screenshot package for QA review.