browser-automation

browser-automation is a skill for Claude Code, Codex from ClawCap/ManoBrowser. It costs 103 tokens per session (7,324 once invoked), scanned A, original, MIT.

A toolset for controlling a web browser through Chrome's developer interface. It can navigate pages, interact with identified elements, upload files, take screenshots, and extract page content.

In plain words
What is it for?
Use it to fill forms, browse websites, test web applications, take screenshots, upload files, send requests using browser cookies, or extract web data.
Why use it?
It removes the need to perform repetitive browser actions by hand and provides a structured way to find and operate page elements.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/clawcap/manobrowser/browser-automation
Any agent
npx skills add ClawCap/ManoBrowser --skill browser-automation
Clone the repo
git clone --depth 1 https://github.com/ClawCap/ManoBrowser

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for browser-automation

README.md
[![agentmods](https://agentmods.dev/badge/skills/clawcap/manobrowser/browser-automation.svg)](https://agentmods.dev/skills/clawcap/manobrowser/browser-automation)
Your own site
<a href="https://agentmods.dev/skills/clawcap/manobrowser/browser-automation"><img src="https://agentmods.dev/badge/skills/clawcap/manobrowser/browser-automation.svg" alt="Measured on agentmods" height="20"></a>
Per session 103 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,324 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00103 $0.07324
Opus 5 $0.00051 $0.03662
Sonnet 5 $0.00021 $0.01465
Haiku 4.5 $0.00010 $0.00732

Measured 4d ago against content hash 30ff8f40e151, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

browser-automation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

browser-automation/SKILL.md · 875 lines

How it starts

The opening of the file, as written. The whole thing — 875 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Browser Automation Skill

Complete browser automation workflow based on MCP Browser Server, providing stable and reliable web page operations.

Core Capabilities

  • CDP-Powered Automation: Chrome DevTools Protocol for reliable, background operations
  • Smart Navigation System: Auto-detect open tabs, avoid redundant navigation
  • Advanced Element Interaction: UID-based targeting, accessibility tree analysis
  • Content Extraction: HTML/text extraction, saved locally
  • Network Requests: Send HTTP requests with browser cookies
  • Advanced Features: File upload, script injection, history navigation

📖 Quick Start

🎯 Execution Flow

Standard Workflow (CDP-Powered, Recommended)

1. get_windows_and_tabs                        (Check browser state)
2. chrome_navigate(url)                        (Navigate to target page, background mode)
3. chrome_screenshot(tabId)                    (Verify loading)
4. [Optional] chrome_page_protection_enable    (Protect from user interference)
5. [Optional] chrome_accessibility_snapshot    (Get interactive elements with UIDs)
6. [Optional] chrome_click_element(uid)        (Click using UID - most reliable)
7. chrome_get_web_content(tabId)               (Extract content)
8. [Optional] chrome_page_protection_disable   (Restore user control)
9. chrome_close_tabs                           (Clean up: close opened tabs after completion)

⚠️ User Intervention: When encountering login/CAPTCHA/complex decisions, use mcp__user_interaction_tools__ask_user_confirmation:

Example parameters:

{
    "type": "user_takeover",
    "message": "Detected login required. Please complete login and click confirm.",
    "confirm_text": "Continue",
    "cancel_text": "Cancel",
    "tabId": "1625463389",
    "timeout": 300
}

CDP Advantages:

  • Background execution: No tab activation, faster performance
  • UID-based targeting: Most reliable element location method
  • Better error handling: CDP provides detailed error information
  • Persistent state: Maintains page state across operations

Read the full file on GitHub · 875 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 875 lines · 103 tokens per session scan A 30ff8f40e151

Subscribe to this mod's changes

browser-automation is a skill published in the GitHub repository ClawCap/ManoBrowser (9 stars, last pushed 4mo ago), licensed MIT. It adds 103 tokens to every session and 7,324 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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