agent-browser

agent-browser is a skill for Claude Code from ouro-ai-labs/ouro. It costs 108 tokens per session (4,805 once invoked), scanned A, original, MIT.

A command-line browser automation tool for agents. It can navigate websites and interact with pages such as forms and buttons.

In plain words
What is it for?
Use it to open websites, fill in forms, click controls, take screenshots, extract information, and test web applications.
Why use it?
It removes the need to perform repetitive browser actions manually and includes guidance for sites that detect automated browsing.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to open websites, fill in forms, click controls, take screenshots, extract information, and test web applications.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ouro-ai-labs/ouro/agent-browser
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.

Any agent
npx skills add ouro-ai-labs/ouro --skill agent-browser
Clone the repo
git clone --depth 1 https://github.com/ouro-ai-labs/ouro

Made for: Claude Code.

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 agent-browser

README.md
[![agentmods](https://agentmods.dev/badge/skills/ouro-ai-labs/ouro/agent-browser/github.svg)](https://agentmods.dev/skills/ouro-ai-labs/ouro/agent-browser)
Your own site
<a href="https://agentmods.dev/skills/ouro-ai-labs/ouro/agent-browser"><img src="https://agentmods.dev/badge/skills/ouro-ai-labs/ouro/agent-browser/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for agent-browser

Your own site · 80×15
<a href="https://agentmods.dev/skills/ouro-ai-labs/ouro/agent-browser"><img src="https://agentmods.dev/badge/skills/ouro-ai-labs/ouro/agent-browser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,805 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Data Exfiltration · line 331
    Code or instructions that leak agent conversation context to external services, potentially exposing sensitive user interactions.
    Fix: Remove any code that sends prompts, responses, or session data externally. Preserve user privacy; never exfiltrate conversation content.
  • medium MCP Rug Pull · line 4
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Rogue Agent · line 518
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
How audits are shown
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 5.1 $0.00108 $0.04805
Opus 5 $0.00054 $0.02403
Sonnet 5 $0.00022 $0.00961
Haiku 4.5 $0.00011 $0.00481

Measured 9d ago against content hash 2aa9dd9e2f87, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

agent-browser 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 9d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (templates/authenticated-session.sh, templates/capture-workflow.sh, templates/form-automation.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

ouro/capabilities/skills/system/agent-browser/SKILL.md · 553 lines

How it starts

The opening of the file, as written. The whole thing — 553 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Browser Automation with agent-browser

Anti-Detection (Bot Fingerprint Evasion)

When visiting sites with aggressive bot detection (e.g. xiaohongshu.com, ctrip.com, trip.com, taobao.com, jd.com), the default headless mode will be blocked. Always use --headed mode to avoid detection.

Use Headed Mode

The default headless Chromium exposes detectable fingerprints (navigator.webdriver, headless-specific WebGL/Canvas values, etc.). Using --headed launches a visible browser window that behaves like a normal user's browser.

agent-browser --headed open https://xiaohongshu.com
agent-browser snapshot -i

Login Strategy

When a site requires login, prefer these methods in order:

  1. SMS verification code (preferred) — fill in the user's phone number, ask the user for the verification code they receive, then complete login. This is the most reliable method and rarely triggers extra risk checks.
  2. QR code scanning (fallback) — switch to the QR code login tab, take a screenshot of the QR code, and send it to the user so they can scan it with their phone.

Avoid username/password login when possible — it is more likely to trigger CAPTCHAs and additional verification.

# SMS login flow
agent-browser --headed open https://xiaohongshu.com/login
agent-browser snapshot -i
# Switch to SMS login tab if needed
agent-browser click @e1
agent-browser snapshot -i
# Fill phone number (ask user for it)
agent-browser fill @e2 "13800138000"
agent-browser click @e3  # Send verification code
# Ask user for the SMS code they received, then fill it in
agent-browser fill @e4 "123456"
agent-browser click @e5  # Submit
agent-browser wait --url "**/explore" --timeout 60000
agent-browser state save xhs-auth.json
# QR code login flow (fallback)
agent-browser --headed open https://xiaohongshu.com/login
agent-browser snapshot -i
# Switch to QR code login tab
agent-browser click @e1
agent-browser wait 2000
# Capture the QR code and send to user
agent-browser screenshot qr-code.png
# Send qr-code.png to the user, then wait for them to scan
agent-browser wait --url "**/explore" --timeout 120000
agent-browser state save xhs-auth.json

Read the full file on GitHub · 553 lines

Files

What ships with it

8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 553 lines · 108 tokens per session scan A 2aa9dd9e2f87

Subscribe to this mod's changes

agent-browser is a skill published in the GitHub repository ouro-ai-labs/ouro (44 stars, last pushed 1mo ago), licensed MIT. It adds 108 tokens to every session and 4,805 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 2026-08-30.

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