Does it support debugging web errors?

Yes, the subagent can monitor console logs and network requests to identify failing assets or JavaScript errors during the automation process.

Is it safe to use for login or sensitive forms?

The skill is designed with security reminders to never enter passwords directly or handle sensitive financial data, ensuring safe automation practices.

Can it capture visual evidence of a website's behavior?

Yes, the skill can capture static screenshots for UI verification and record GIFs for multi-step workflow documentation.

How does this skill keep the main context window clean?

It utilizes a subagent delegation pattern where all browser interactions are performed in a separate task, returning only a concise summary and relevant media to the main chat.

Subagent Browser Automation

Name: Subagent Browser Automation
Author: kastheco

bykastheco

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Browser Automation

Automates web browsing, UI testing, and data extraction using a subagent architecture to keep your primary AI context clean.

The Subagent Browser Automation skill enables Claude Code to interact with web browsers efficiently by delegating complex tasks to a specialized subagent. This approach ensures that the main conversation remains focused on code and logic while the subagent handles the heavy lifting of navigating pages, submitting forms, and monitoring network traffic. It is an essential tool for developers who need to perform end-to-end testing, capture visual evidence of UI states via screenshots or GIFs, and scrape structured data from websites without overwhelming the primary context window with raw HTML or verbose logs.

Key Features

012 GitHub stars

02Automated UI testing and form submission

03High-fidelity visual capture including screenshots and GIFs

04Subagent architecture for context-efficient browsing

05Structured data extraction and web scraping

06Real-time console log and network request monitoring

Use Cases

01Verifying front-end UI components and page load states during development

02Automating multi-step workflows like user registration or search sequences

03Extracting pricing or content from web pages into structured formats

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add kastheco/claude-plugins browser

For use in Claude.ai and ChatGPT

Download Skill