browser_cdp

browser_cdp is a skill for Claude Code, Codex from agentscope-ai/QwenPaw. It costs 70 tokens per session (1,633 once invoked), scanned A, original, Apache-2.0.

Browser connection controls for finding local debugging ports, attaching to an already running Chrome browser, or sharing one browser between tools.

In plain words
What is it for?
Use it to scan for local CDP targets, connect to an existing Chrome, start a browser on a chosen debugging port, or share one browser instance.
Why use it?
It removes the need to start a separate browser when another tool or agent must use the same session. It also makes explicit browser connections and their exposure easier to manage.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for qwenpaw. Also seen: built for qwenpaw.

Good fit Use it to scan for local CDP targets, connect to an existing Chrome, start a browser on a chosen debugging port, or share one browser instance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agentscope-ai/qwenpaw/browser_cdp-en
About the project

QwenPaw is a personal AI assistant that runs on a local machine or in the cloud and connects to multiple chat applications. It provides memory, file workspaces, multiple agents, skills, plugins, and integrations with language-model providers and external tools. The catalogue entries are skills that extend its capabilities.

agentscope-ai/QwenPaw · 34,809 stars · on GitHub · qwenpaw.agentscope.io

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 agentscope-ai/QwenPaw --skill browser_cdp-en
Clone the repo
git clone --depth 1 https://github.com/agentscope-ai/QwenPaw

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_cdp

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentscope-ai/qwenpaw/browser_cdp-en/github.svg)](https://agentmods.dev/skills/agentscope-ai/qwenpaw/browser_cdp-en)
Your own site
<a href="https://agentmods.dev/skills/agentscope-ai/qwenpaw/browser_cdp-en"><img src="https://agentmods.dev/badge/skills/agentscope-ai/qwenpaw/browser_cdp-en/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 browser_cdp

Your own site · 80×15
<a href="https://agentmods.dev/skills/agentscope-ai/qwenpaw/browser_cdp-en"><img src="https://agentmods.dev/badge/skills/agentscope-ai/qwenpaw/browser_cdp-en.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,633 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. ✓ AI security review Fable 5.1 · 6 Sept 2026 📄 Read the review Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
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 $0.00070 $0.01633
Opus 5 $0.00035 $0.00816
Sonnet 5 $0.00014 $0.00327
Haiku 4.5 $0.00007 $0.00163

Measured 12d ago against content hash 5d320a9e2b69, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

browser_cdp 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 12d 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.

src/qwenpaw/agents/tools/deprecated_browser/skills/browser_cdp-en/SKILL.md · 202 lines

How it starts

The opening of the file, as written. The whole thing — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deprecated: This reference supports the stable browser implementation. hatch. Prefer the unified browser tool when experimental mode is enabled.

Browser CDP Reference

By default, browser opens no debugging port: the browser is managed directly by Playwright. This skill covers the cases where a CDP port is wanted on purpose.

This skill focuses on more "explicit" CDP usage:

  1. Scanning local CDP ports
  2. Connecting to an existing Chrome (connect_cdp)
  3. Explicitly specifying a cdp_port when launching the browser
  4. Sharing a single browser instance across multiple agents/tools

In other words:

  • The default start opens no debugging port, so users typically do not need to understand or be aware of CDP details
  • Only enter the scope of this skill when the user explicitly mentions "connect to an existing browser / scan ports / specify a port / share a browser"

Privacy Recommendation

The default start exposes nothing — no debugging port is opened. Only pass cdp_port when the user explicitly wants another local tool to attach, and warn about the exposure first.

Warning: One browser instance per workspace

Only one browser can be running or connected per workspace at a time. If a browser instance already exists, you must execute stop first before switching to a new browser or a new CDP connection.


When to Use

Use this skill only when the user explicitly expresses one of the following intentions:

  • "Connect to my already-open Chrome"
  • "Scan for available CDP ports on this machine"
  • "Launch the browser with a fixed debug port"
  • "Let other agents/tools connect to this browser too"
  • "Attach to the browser via the remote debugging port"

In the following cases, you should typically not use this skill:

  • The user just says "open the browser"
  • The user just says "open a visible window"
  • The user does not mention sharing, ports, CDP, or remote debugging

In these cases, use the standard start, adding headed=true if needed — refer to browser_visible.

Read the full file on GitHub · 202 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. 12d ago First seen · 202 lines · 70 tokens per session scan A 5d320a9e2b69

Subscribe to this mod's changes

browser_cdp is a skill published in the GitHub repository agentscope-ai/QwenPaw (34,809 stars, last pushed yesterday), licensed Apache-2.0. It adds 70 tokens to every session and 1,633 once invoked, about $0.0003 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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browser_visible

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