majiayu000/claude-arsenal
xiaohongshu
xiaohongshu
286 148
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Fetching Blocked URLs
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.
SKILL.md
Full skill instructions
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
- Primary: Use web_fetch (native tool)
- Fallback: This skill with retry when web_fetch fails
- 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 titleURL Source:original URLMarkdown 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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