Dev Browser

What this skill does

• •Executes sandboxed JavaScript automation scripts
• •Maintains persistent browser sessions for multi-step tasks
• •Supports both headless mode and existing Chrome instance attachment
• •Provides full access to Playwright API primitives
• •Captures screenshots and extracts DOM elements programmatically

When to use it

• ✓Scraping data from sites that require complex state or navigation
• ✓Testing UI workflows in web applications during development
• ✓Automating form submission processes across multiple pages
• ✓Monitoring web content for specific changes or data updates

When not to use it

• ✕Tasks requiring human-like anti-bot bypass mechanisms
• ✕High-frequency scraping that requires rotating IP addresses or proxies
• ✕Extensive browser-based media rendering or heavy graphical tasks

How to invoke it

Example prompts that trigger this skill:

• “Go to the admin dashboard at localhost:3000 and fill out the login form”
• “Navigate to the pricing page and take a screenshot of the main table”
• “Scrape all product titles from the search results page”
• “Test if the registration button remains clickable after a 5-second delay”
• “Connect to my running browser and list all currently open tabs”

Example workflow

1. Launch the browser instance using the CLI
2. Navigate to the target website URL
3. Execute a script to wait for specific DOM elements to load
4. Fill in credentials and trigger the login action
5. Extract the required data into a local JSON object

Prerequisites

• –Node.js installed on the host machine
• –Playwright and Chromium (via dev-browser install command)

Pitfalls & limitations

• !Sandboxing restricts access to local file system APIs
• !Browser processes require sufficient memory for headful operations
• !Initial setup requires manual remote-debugging port configuration for Chrome attachment

FAQ

How it compares

Unlike manual browsing or generic prompts, Dev Browser maintains persistent state across distinct script executions, allowing for long-running, reproducible automation workflows.

Source & trust

From the source: “# Dev Browser A CLI for controlling browsers with sandboxed JavaScript scripts. ## Installation ```bash npm install -g dev-browser dev-browser install ``` ## Usage Run `dev-browser --help` to learn more.…”

# Dev Browser

A CLI for controlling browsers with sandboxed JavaScript scripts.

## Installation

```bash
npm install -g dev-browser
dev-browser install
```

## Usage

Run `dev-browser --help` to learn more.

Quoted from SawyerHood/dev-browser for reference — see the original for the authoritative, latest version.

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