Can it handle responsive design testing?

Yes, the skill includes a dedicated phase for testing layouts across mobile, tablet, and desktop viewports using automated browser resizing.

How does it identify potential bugs?

It launches a specialized sub-agent that analyzes the codebase for logic errors, UI/UX issues, data integrity risks, and security concerns before testing begins.

What environments does this skill support?

The e2e-test-agent-browser skill supports Linux, macOS, and WSL environments. It is not compatible with native Windows.

Does it only test the frontend UI?

No, it performs full-stack validation by interacting with the UI through a browser and querying the database directly to ensure records are created correctly.

Can I export the results of the test?

Yes, after testing is complete, you can generate a detailed markdown report containing journey breakdowns, screenshot references, and database validation results.

End-to-End Browser Testing Agent

Name: End-to-End Browser Testing Agent
Author: stonelyd

bystonelyd

0•

Security & Testing

Performs autonomous end-to-end browser testing with parallel research, visual validation, and database verification.

This skill transforms Claude into a sophisticated QA engineer capable of conducting deep, autonomous end-to-end application testing. It coordinates multiple sub-agents to map out codebase structures, database schemas, and potential bug vectors simultaneously. Using the Vercel Agent Browser CLI, it navigates real user journeys, captures annotated screenshots for visual regression, validates data integrity directly in the database, and performs responsive testing across multiple viewports—ensuring your application is production-ready before code review.

Key Features

01Automated reporting with detailed markdown exports and bug summaries

02Parallel multi-agent codebase research and bug hunting

03Visual testing with annotated screenshots and responsive viewport checks

040 GitHub stars

05Integrated database record validation for Postgres and SQLite

06Autonomous user journey execution via Vercel Agent Browser

Use Cases

01Validating new feature implementations before submitting pull requests

02Verifying complex data flows that span both the UI and the database layer

03Automated regression testing across desktop, tablet, and mobile viewports

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add stonelyd/seiraiyu-skills e2e-test-agent-browser

For use in Claude.ai and ChatGPT

Key Features

01Automated reporting with detailed markdown exports and bug summaries

02Parallel multi-agent codebase research and bug hunting

03Visual testing with annotated screenshots and responsive viewport checks

040 GitHub stars

05Integrated database record validation for Postgres and SQLite

06Autonomous user journey execution via Vercel Agent Browser

Use Cases

01Validating new feature implementations before submitting pull requests

02Verifying complex data flows that span both the UI and the database layer

03Automated regression testing across desktop, tablet, and mobile viewports

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add stonelyd/seiraiyu-skills e2e-test-agent-browser

For use in Claude.ai and ChatGPT