dev-browser
A CLI tool for controlling browser sessions, automating form entry, and extracting data from websites.
Install
mkdir -p .claude/skills/dev-browser && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/460" && unzip -o skill.zip -d .claude/skills/dev-browser && rm skill.zipInstalls to .claude/skills/dev-browser
Activation
This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.
Browser automation with persistent page state. Use when users ask to navigate websites, fill forms, take screenshots, extract web data, test web apps, or automate browser workflows. Trigger phrases include "go to [url]", "click on", "fill out the form", "take a screenshot", "scrape", "automate", "test the website", "log into", or any browser interaction request.Key capabilities
- →Navigate websites and fill forms
- →Capture screenshots of web elements
- →Maintain persistent browser page state
- →Execute sandboxed JavaScript scripts
- →Manage browser idle timeouts for unattended tasks
How it works
The tool operates as a CLI that launches and controls browser instances using sandboxed JavaScript. It manages persistent profiles to maintain login sessions across automated tasks.
Inputs & outputs
When to use dev-browser
- →Automate website login workflows
- →Extract data from a web page
- →Test web application functionality
- →Take screenshots of specific elements
About this skill
dev-browser
CLI for controlling a real Chrome with short Puppeteer scripts. One warm daemon; named pages persist between runs.
npm install -g dev-browser # bun add -g dev-browser works too; the first run downloads the binary if the install script was blocked
dev-browser install # only if the first run says "No Chrome found"
Run dev-browser --help (full guide; dev-browser help <topic> for one section) before non-trivial work. Quick start:
dev-browser <<'EOF'
const page = await browser.getPage("main"); // named page persists across runs
await page.goto("https://example.com"); // default waitUntil: domcontentloaded
await page.snapshot({ interactive: true }) // ARIA tree with refs; last expression is printed
EOF
dev-browser -e 'const p = await browser.getPage("main"); await p.click("ref/e6"); await p.waitForLoad(); p.url()'
Gotchas: end lines with semicolons (a line starting with ( continues the previous one); return an object as
({ a, b }); page.click never waits (use waitForSelector first); page names are per browser (--headless and
headed are separate Chromes and profiles); refs reset on navigation — re-snapshot; file paths resolve against your cwd
(uploadFile, screenshot/pdf path); do not run parallel dev-browser calls against the same named page.
When not to use it
- →Non-browser based automation tasks
- →Environments where CLI installation is restricted
Prerequisites
Limitations
- →Requires manual installation of browser binaries via CLI
- →Idle timeout settings may prematurely close browsers if not configured correctly
How it compares
Unlike manual browser control, this tool automates interactions through a CLI and maintains persistent state for multi-step workflows.
Compared to similar skills
dev-browser side by side with the closest alternatives in the catalog.
| Skill | Installs | Updated | Safety | Difficulty |
|---|---|---|---|---|
| dev-browser (this skill) | 53 | 6mo | Review | Intermediate |
| agent-browser | 30 | 4mo | Review | Intermediate |
| browser-tools | 6 | 10mo | Review | Intermediate |
| browser | 3 | 8mo | Review | Intermediate |
Try saying
Example prompts that trigger this skill in your AI assistant.
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