How does Web CLI differ from standard WebFetch tools?

Web CLI renders JavaScript and handles dynamic content like React, Vue, or Phoenix LiveView, whereas standard fetch tools usually only retrieve static HTML.

Can I see what the browser sees during automation?

Yes, you can use the --screenshot flag to save a visual representation of the page to a file for visual verification and debugging.

Can I test login-protected pages using this skill?

Yes, Web CLI supports session persistence and named profiles, allowing you to log in to a site and perform subsequent actions within the same authenticated session.

Is it possible to run custom scripts on the page?

Yes, the --js option allows you to execute arbitrary JavaScript after the page loads, which is perfect for clicking buttons or triggering specific UI events.

Does it work with local development servers?

Absolutely. It is specifically designed to interact with localhost environments to verify features and build status as you develop.

Web CLI Browser

Name: Web CLI Browser
Author: forest

byforest

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Browser Automation

Provides a full-featured browser CLI for interacting with, testing, and scraping JavaScript-heavy web applications during development.

Web CLI is a robust browser automation tool designed for Claude to interact with modern web applications. Unlike basic fetch utilities, it handles complex JavaScript-rendered content, Phoenix LiveView states, and persistent user sessions across multiple steps. It allows developers to verify UI output, test authenticated workflows through form submissions, capture screenshots for visual audits, and scrape data from dynamic sites. This makes it an essential tool for full-stack development, enabling Claude to confirm features work in a real browser environment as they are being built.

Key Features

01Persistent session management with multiple profile support

02Native support for Phoenix LiveView and dynamic UI states

03Full JavaScript and Single Page Application (SPA) rendering

041 GitHub stars

05Automated form submission and authenticated workflow testing

06Visual verification via high-quality page screenshots

Use Cases

01Verifying build status and UI functionality of local development servers

02Testing login flows and protected routes using session persistence

03Scraping data from dynamic, JavaScript-heavy websites that require user interaction

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add forest/agent-skills web-cli

For use in Claude.ai and ChatGPT