AgentSkillsCN

BrightData

四层渐进式URL抓取与多页面爬取——先用WebFetch，再用Chrome头部curl，然后用Playwright浏览器，最后用Bright Data代理。下层失败时自动升级。适用于Bright Data、抓取URL、网络爬虫、网站被屏蔽、无法访问、机器人检测、爬取网站、爬取页面、蜘蛛、CAPTCHA、四层抓取、渐进式抓取、Chrome头部等场景。

SKILL.md
--- frontmatter
name: BrightData
description: 4-tier progressive URL scraping and multi-page crawling — WebFetch, then Chrome-header curl, then Playwright browser, then Bright Data proxy. Auto-escalates when lower tiers fail. USE WHEN Bright Data, scrape URL, web scraping, site blocking me, can't access, bot detection, crawl site, crawl pages, spider, CAPTCHA, four tier scrape, progressive scraping, Chrome headers.

Customization

Before executing, check for user customizations at: ~/.claude/PAI/USER/SKILLCUSTOMIZATIONS/BrightData/

If this directory exists, load and apply any PREFERENCES.md, configurations, or resources found there. These override default behavior. If the directory does not exist, proceed with skill defaults.

🚨 MANDATORY: Voice Notification (REQUIRED BEFORE ANY ACTION)

You MUST send this notification BEFORE doing anything else when this skill is invoked.

  1. •

    Send voice notification:

    bash
    curl -s -X POST http://localhost:8888/notify \
  -H "Content-Type: application/json" \
  -d '{"message": "Running the WORKFLOWNAME workflow in the BrightData skill to ACTION"}' \
  > /dev/null 2>&1 &
  2. •

    Output text notification:

    code
    Running the **WorkflowName** workflow in the **BrightData** skill to ACTION...

This is not optional. Execute this curl command immediately upon skill invocation.

Workflow Routing

When executing a workflow, output this notification directly:

code
Running the **WorkflowName** workflow in the **Brightdata** skill to ACTION...

Route to the appropriate workflow based on the request.

When user requests scraping/fetching a single URL: Examples: "scrape this URL", "fetch this page", "get content from [URL]", "pull content from this site", "retrieve [URL]", "can't access this site", "this site is blocking me", "use Bright Data to fetch" → READ: Workflows/FourTierScrape.md → EXECUTE: Four-tier progressive scraping workflow (WebFetch → Curl → Browser Automation → Bright Data MCP)

When user requests crawling multiple pages from a site: Examples: "crawl this site", "crawl all pages under /docs", "spider this domain", "map this website", "get all pages from", "crawl [URL]", "scrape the whole site", "extract all pages" → READ: Workflows/Crawl.md → EXECUTE: Crawl workflow (Light Crawl for <50 pages, Full Crawl via Bright Data Crawl API for larger sites)

When to Activate This Skill

Direct Scraping Requests (Categories 1-4)

  • •"scrape this URL", "scrape [URL]", "scrape this page"
  • •"fetch this URL", "fetch [URL]", "fetch this page", "fetch content from"
  • •"pull content from [URL]", "pull this page", "pull from this site"
  • •"get content from [URL]", "retrieve [URL]", "retrieve this page"
  • •"do scraping on [URL]", "run scraper on [URL]"
  • •"basic scrape", "quick scrape", "simple fetch"
  • •"comprehensive scrape", "deep scrape", "full content extraction"

Access & Bot Detection Issues (Categories 5-7)

  • •"can't access this site", "site is blocking me", "getting blocked"
  • •"bot detection", "CAPTCHA", "access denied", "403 error"
  • •"need to bypass bot detection", "get around blocking"
  • •"this URL won't load", "can't fetch this page"
  • •"use Bright Data", "use the scraper", "use advanced scraping"

Result-Oriented Requests (Category 8)

  • •"get me the content from [URL]"
  • •"extract text from [URL]"
  • •"download this page content"
  • •"convert [URL] to markdown"
  • •"need the HTML from this site"

Crawling Requests (Categories 9-11)

  • •"crawl this site", "crawl [URL]", "spider this domain"
  • •"map this website", "get all pages from [URL]", "scrape the whole site"
  • •"crawl all pages under /docs", "extract all pages from", "site crawl"
  • •"get every page on this site", "full site extraction"
  • •"crawl depth 3", "crawl up to 50 pages"

Use Case Indicators

  • •User needs web content for research or analysis
  • •Standard methods (WebFetch) are failing
  • •Site has bot detection or rate limiting
  • •Need reliable content extraction
  • •Converting web pages to structured format (markdown)
  • •User needs multiple pages from a site, not just one
  • •User wants to map a site's structure or extract a section

Core Capabilities

Progressive Escalation Strategy:

  1. •Tier 1: WebFetch - Fast, simple, built-in Claude Code tool
  2. •Tier 2: Customized Curl - Chrome-like browser headers to bypass basic bot detection
  3. •Tier 3: Browser Automation - Full browser automation using Playwright for JavaScript-heavy sites
  4. •Tier 4: Bright Data MCP - Professional scraping service that handles CAPTCHA and advanced bot detection

Key Features:

  • •Automatic fallback between tiers
  • •Preserves content in markdown format
  • •Handles bot detection and CAPTCHA
  • •Works with any URL
  • •Efficient resource usage (only escalates when needed)

Workflow Overview

FourTierScrape.md - Complete URL content scraping with four-tier fallback strategy

  • •When to use: Any single URL content retrieval request
  • •Process: Start with WebFetch → If fails, use curl with Chrome headers → If fails, use Browser Automation → If fails, use Bright Data MCP
  • •Output: URL content in markdown format

Crawl.md - Multi-page crawling with link discovery and site mapping

  • •When to use: Crawling multiple pages from a site, mapping site structure, extracting a section
  • •Process: Light Crawl (MCP scrape_batch + link extraction loop, up to 50 pages) or Full Crawl (Bright Data Crawl API for entire sites)
  • •Output: Site map + page contents in markdown, with crawl stats and cost summary

Extended Context

Integration Points:

  • •WebFetch Tool - Built-in Claude Code tool for basic URL fetching
  • •Bash Tool - For executing curl commands with custom headers
  • •Browser Automation - Playwright-based browser automation for JavaScript rendering
  • •Bright Data MCP - mcp__Brightdata__scrape_as_markdown and scrape_batch for advanced scraping
  • •Bright Data Crawl API - HTTP POST to api.brightdata.com/datasets/v3/trigger for full-site crawls

When Each Tier Is Used:

  • •Tier 1 (WebFetch): Simple sites, public content, no bot detection
  • •Tier 2 (Curl): Sites with basic user-agent checking, simple bot detection
  • •Tier 3 (Browser Automation): Sites requiring JavaScript execution, dynamic content loading
  • •Tier 4 (Bright Data): Sites with CAPTCHA, advanced bot detection, residential proxy requirements

Configuration: No configuration required - all tools are available by default in Claude Code

Examples

Example 1: Simple Public Website

User: "Scrape https://example.com"

Skill Response:

  1. •Routes to three-tier-scrape.md
  2. •Attempts Tier 1 (WebFetch)
  3. •Success → Returns content in markdown
  4. •Total time: <5 seconds

Example 2: Site with JavaScript Requirements

User: "Can't access this site https://dynamic-site.com"

Skill Response:

  1. •Routes to four-tier-scrape.md
  2. •Attempts Tier 1 (WebFetch) → Fails (blocked)
  3. •Attempts Tier 2 (Curl with Chrome headers) → Fails (JavaScript required)
  4. •Attempts Tier 3 (Browser Automation) → Success
  5. •Returns content in markdown
  6. •Total time: ~15-20 seconds

Example 3: Site with Advanced Bot Detection

User: "Scrape https://protected-site.com"

Skill Response:

  1. •Routes to four-tier-scrape.md
  2. •Attempts Tier 1 (WebFetch) → Fails (blocked)
  3. •Attempts Tier 2 (Curl) → Fails (advanced detection)
  4. •Attempts Tier 3 (Browser Automation) → Fails (CAPTCHA)
  5. •Attempts Tier 4 (Bright Data MCP) → Success
  6. •Returns content in markdown
  7. •Total time: ~30-40 seconds

Example 4: Explicit Bright Data Request

User: "Use Bright Data to fetch https://difficult-site.com"

Skill Response:

  1. •Routes to four-tier-scrape.md
  2. •User explicitly requested Bright Data
  3. •Goes directly to Tier 4 (Bright Data MCP) → Success
  4. •Returns content in markdown
  5. •Total time: ~5-10 seconds

Related Documentation:

  • •~/.claude/PAI/SkillSystem.md - Canonical structure guide
  • •~/.claude/PAI/CONSTITUTION.md - Overall PAI philosophy

Last Updated: 2026-02-22