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fetching-blocked-urls

Retrieve clean markdown from URLs when web_fetch fails. Converts pages via Jina AI reader service with automatic retry. Use when web_fetch or curl returns 403, blocked, paywall, timeout, JavaScript-rendering errors, or empty content or user explicitly suggests using jina.

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包含的文件(3)

  • SKILL.md1.9 KB
  • CHANGELOG.md283 B
  • README.md298 B

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

Fetching Blocked URLs

Retrieve readable content from URLs that web_fetch cannot access. Jina AI's reader service renders JavaScript, bypasses soft blocks, and returns clean markdown.

Activation Triggers

Invoke this skill immediately when web_fetch returns:

  • 403 Forbidden or access denied
  • Paywall or login wall indicators
  • Empty, garbled, or truncated content
  • JavaScript-heavy SPA failures
  • Timeout errors

Core Command

curl -s --max-time 30 "https://r.jina.ai/TARGET_URL"

The service returns markdown with page title, body text, and preserved links.

Retry Pattern

Jina's backend has ~10% intermittent failures. Use retry logic to achieve 99%+ success:

for attempt in 1 2 3; do
  result=$(curl -s --max-time 30 "https://r.jina.ai/TARGET_URL" 2>&1)
  echo "$result" | grep -q "upstream connect error" || { echo "$result"; break; }
  [ $attempt -lt 3 ] && sleep 1
done

Workflow Integration

  1. Primary: Use web_fetch (native tool)
  2. Fallback: This skill with retry when web_fetch fails
  3. Escalate: Request user assistance only after retry exhaustion

Attempt this fallback before asking users to copy-paste content manually.

Output Format

Jina returns structured markdown:

  • Title: page title
  • URL Source: original URL
  • Markdown Content: extracted body text, links preserved

Limitations

  • Long pages may truncate
  • Sites blocking all scrapers remain inaccessible
  • Login-required content limited to public portions
  • Real-time dynamic content may not render

Domain Access

r.jina.ai is whitelisted in Claude container network configuration.

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中文简介正在准备中。当前显示原文说明。

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中文简介正在准备中。当前显示原文说明。

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中文简介正在准备中。当前显示原文说明。

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中文简介正在准备中。当前显示原文说明。

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