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browser-harness Skill Install & Guide

SkillSkillsMP

skillsmp.browser-use-browser-harness-skill-md

Always use browser-harness for any web interaction: automation, scraping, testing, or site/app work.

View on SkillsMP ↗

Copy the install config on this page first, then verify docs and permissions upstream.

Popularity

Repo stars16k

Overview

Always use browser-harness for any web interaction: automation, scraping, testing, or site/app work. browser-harness is a Agent Skill listed from SkillsMP. This page includes an overview, setup tutorial, install commands, and use cases for Trae, Tongyi Lingma, Cursor, Claude Code, and VS Code.

Use cases

Browser automation

AgentHub Verified AvailabilityTested & Ready

Automated pipeline validated install commands, protocol & client compatibility

Verified At2026-07-18
Install Snippets TestedCLI & JSON config syntax verified
Protocol Handshake ReadyComplies with JSON-RPC 2.0 specifications
Origin Registry ActiveSourced from skillsmp
Verified ClientsClaude Code、Claude Desktop、Cursor 等
Security Tier: A+ 级 · 零权限本地沙盒 (A+)·Scanned for high-risk vulnerabilities. Recommended to run with project-scoped permissions.
No auto-generated install guide — see the source repository README.

Troubleshooting & Common ErrorsFAQ

Common connection errors and verified fixes for browser-harness

Getting 'connection closed' or exit code 1 in Cursor / Claude Code for browser-harness?

Usually caused by missing runtime paths or IDE environment inheritance. Fix steps: 1. Verify Node.js 18+ (npx) or Python 3.10+ (uvx) is installed; 2. Run 'which npx' or 'which uvx' in terminal, and replace 'command' with absolute path; 3. Reload or restart the client window after modifying config.

Fix Snippet
# Check binary path in terminal:
which npx
node -v
Getting 'spawn npx ENOENT' or 'command not found'?

The editor background process does not inherit your full terminal PATH. Solution: Globally install the package, or set the absolute binary path (e.g. C:\Program Files\nodejs\npx.cmd on Windows, or /usr/local/bin/npx on macOS).

Tool calls timing out or failing to download packages?

First-time package downloading might be slow or timeout due to network limits. Configure a reliable mirror or check outbound proxy settings.

Agent does not match or apply browser-harness during conversations?

Verify SKILL.md is located at .cursor/skills/browser-harness/SKILL.md (Cursor) or ~/.claude/skills/browser-harness/SKILL.md (Claude Code). You can explicitly mention the skill name in your prompt to boost match confidence.

Still not connecting? Read the MCP troubleshooting guide →

Tool Mock Playground

Sandbox

browser-harness Rule Injection & Agent Behavior Simulation · Preview tool schema & outputs without local runtime

Sandbox Ready
fn: agent_skill_runtimeInject system prompt guidelines & workflow constraints from browser-harness
Request ArgumentsJSON Schema
{
  "skill": "browser-harness",
  "rulePath": ".cursor/skills/browser-harness/SKILL.md",
  "userGoal": "请使用 browser-harness 的方法与标准帮我完成当前任务",
  "client": "Cursor / Claude Code"
}
💡Parameters generated dynamically by Agent runtime
Agent Tool Output

Click 'Run Mock' above

to preview the raw response returned to the LLM

Env: AgentHub Virtual SandboxJSON-RPC 2.0

Decision Guide: Why & When to Use

Assess suitability before installing to save trial-and-error time

Best Suited For
  • E2E testing
  • Headless screenshots
  • Form automation
When NOT to Use
  • Bulk fetch when a stable REST API exists
  • CAPTCHA bypass (compliance risk)
Recommended Workflow Pairing:View Scenario →

Playwright MCP + Filesystem MCP → AI writes tests and runs browser actions

Skill hands-on: install to visible results

Follow the full lab (expected UI/output + contrast checks). After installing this item, verify with the tutorial prompts.

Open tutorial →

An Agent Skill is a folder with SKILL.md instructions. After install, the AI loads it automatically when your task matches its description.

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Copy either snippet into your project homepage, docs, or GitHub README. The badge is a hotlinked SVG — nothing to host — and it links back to this page so visitors can find the install steps.

PreviewListed on AgentHub: browser-harness
HTML
<a href="https://myagenthub.cn/p/skillsmp.browser-use-browser-harness-skill-md" title="Listed on AgentHub: browser-harness" target="_blank" rel="noopener">
  <img src="https://myagenthub.cn/badge/skillsmp.browser-use-browser-harness-skill-md?lang=en" alt="Listed on AgentHub: browser-harness" height="20" style="border:0"/>
</a>
Markdown (GitHub README)
[![Listed on AgentHub: browser-harness](https://myagenthub.cn/badge/skillsmp.browser-use-browser-harness-skill-md?lang=en)](https://myagenthub.cn/p/skillsmp.browser-use-browser-harness-skill-md)

Badges are generated on the fly from /badge/<package-id>, so name and listing changes propagate automatically. Keep the link target unchanged — it is what counts as the referral.

Unified Manifest

{
  "id": "skillsmp.browser-use-browser-harness-skill-md",
  "type": "skill",
  "version": "main",
  "displayName": "browser-harness",
  "description": "Always use browser-harness for any web interaction: automation, scraping, testing, or site/app work.",
  "author": {
    "name": "browser-use"
  },
  "homepage": "https://skillsmp.com/creators/browser-use/browser-harness/skill",
  "distribution": {
    "packages": [
      {
        "registryType": "source",
        "identifier": "browser-use-browser-harness-skill-md",
        "version": "main",
        "runtimeHint": "npx skills add"
      }
    ],
    "remotes": []
  },
  "dependencies": [],
  "installTargets": [
    "claude-code",
    "claude-desktop",
    "cursor",
    "codex",
    "vscode"
  ],
  "keywords": [
    "repo_stars:16038"
  ],
  "provenance": {
    "origin": "skillsmp",
    "originalId": "browser-use-browser-harness-skill-md",
    "originalUrl": "https://skillsmp.com/creators/browser-use/browser-harness/skill",
    "isOfficial": false,
    "status": "active"
  }
}
browser-harness Skill Install & Guide - AgentHub