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agent-browser

Headless browser automation CLI for AI agents.

Skill by leecyno1

IndexedMIT★ 6
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/leecyno1-agent-browser

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Headless browser automation CLI for AI agents. Use when interacting with websites — navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, scraping, testing web apps, downloading files, or automating any browser task. Triggers on requests to "open a website", "fill out a form", "click a button", "take a screenshot", "scrape data", "test this web app", "login to a site", "monitor a page", or any task requiring programmatic web interaction.

Use cases: frontend, testing, data, productivity

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
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Runs as
Shell scripts

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/agent-browser

What's inside

Skill name
agent-browser
Description
Headless browser automation CLI for AI agents. Use when interacting with websites — navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, scraping, testing web apps, downloading files, or automating any browser task. Triggers on requests to "open a website", "fill out a form", "click a button", "take a screenshot", "scrape data", "test this web app", "login to a site", "monitor a page", or any task requiring programmatic web interaction.
License
MIT
Instructions
141 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Files (4)

  • GUIDE.md
  • SKILL.md
  • commands.md · references/
  • setup.sh · scripts/

SKILL.md (first lines)

# Browser Automation with agent-browser

## Setup

Run `scripts/setup.sh` to install agent-browser and Chromium. Requires Node.js.

## Core Workflow

Every browser automation follows this pattern:

1. **Navigate**: `agent-browser open <url>`
2. **Snapshot**: `agent-browser snapshot -i` (get element refs like `@e1`, `@e2`)
3. **Interact**: Use refs to click, fill, select
4. **Re-snapshot**: After navigation or DOM changes, get fresh refs

```bash
agent-browser open https://example.com/form
agent-browser snapshot -i
# Output: @e1 [input type="email"], @e2 [input type="password"], @e3 [button] "Submit"

agent-browser fill @e1 "user@example.com"
agent-browser fill @e2 "password123"
agent-browser click @e3
agent-browser wait --load networkidle
agent-browser snapshot -i  # Check result
```

## Command Chaining

Chain with `&&` when you don't need intermediate output:

```bash
agent-browser open https://example.com && agent-browser wait --load networkidle && agent-browser snapshot -i
```

Run separately when you need to parse output first (e.g., snapshot to discover refs).

## Essential Commands

```bash
# Navigate
agent-browser open <url>
agent-browser close

# See the page (always do this first)
agent-browser snapshot -i              # Interactive elements with refs
agent-browser snapshot -i -C           # Include onclick divs

# Interact using @refs
agent-browser click @e1
agent-browser fill @e2 "text"
agent-browser select @e1 "option"
agent-browser press Enter
agent-browser scroll down 500

# Get info
agent-browser get text @e1
agent-browser get url
agent-browser get title

# Wait
agent-browser wait @e1                 # For element
agent-browser wait --load networkidle  # For network idle

# Capture
agent-browser screenshot page.png
agent-browser screenshot --full        # Full page
agent-browser pdf output.pdf
```

For the full command reference, see `references/commands.md`.

## Ref Lifecycle (Important)

Refs (`@e1`, `@e2`) are invalidated when the page changes. Always re-snapshot after:
- Clicking links/buttons that navigate
- Form submissions
- Dynamic content loading (dropdowns, modals)

## Common Patterns

### Form Submission
```bash
agent-browser open https://example.com/signup
agent-browser snapshot -i
agent-browser fill @e1 "Jane Doe"
agent-browser fill @e2 "jane@example.com"
agent-browser select @e3 "California"
agent-browser click @e5
agent-browser wait --load networkidle
```

### Login with State Persistence
```bash
agent-browser open https://app.example.com/login
agent-browser snapshot -i
agent-browser fill @e1 "$USERNAME" && agent-browser fill @e2 "$PASSWORD"
agent-browser click @e3
agent-browser wait --url "**/dashboard"
agent-browser state save auth.json

# Reuse later
agent-browser state load auth.json
agent-browser open https://app.example.com/dashboard
```

### Data Extraction
```bash
agent-browser open https://example.com/products
agent-browser snapshot -i
agent-browser get text @e5
agent-browser get text body > page.txt
```

### Screenshot & Diff
```bash
agent-browser screenshot baseline.png
# ... changes happen ...
agent-browser diff screenshot --baseline baseline.png

From leecyno1/boutique-skills, MIT.

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Last commit (this folder)
May 15, 2026 (5 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

More from leecyno1

Cite this page

agent-browser skill. Agent Mart. https://agentmart.dev/skills/leecyno1-agent-browser (last updated 2026-10-24)