jina-web-fetch（吉娜网络获取）

Jina Web Fetch

Use this skill to capture content from hard-to-fetch pages while keeping a deterministic workflow:

1. Try direct fetch first.
2. If direct fetch fails or looks blocked, retry via jina.ai.

Quick Start

bash "<path-to-skill>/scripts/fetch_with_jina_fallback.sh" "<url>" "<output_file>"

Example:

bash "<path-to-skill>/scripts/fetch_with_jina_fallback.sh" \
  "https://x.com/trq212/status/2027463795355095314" \
  "raw/x-status.txt"

The script prints source=direct or source=jina to stderr so you can see which path was used.

If output_file is omitted, content is printed to stdout.

Default Workflow

1. Run the script with the target URL.
2. Save raw output under a traceable path like raw/<slug>.txt.
3. Parse extracted text/markdown for:

- main body - media links (images/videos) - referenced URLs

1. Keep original URL + raw capture together for auditability.

Blocking Heuristics

The script auto-falls back to jina.ai when direct content looks like:

• login wall / sign-up prompt
• JS-required page
• anti-bot / captcha / access denied page
• very small shell-like HTML page (default threshold < 800 bytes)

Environment Knobs

• FETCH_TIMEOUT (default 25)
• FETCH_CONNECT_TIMEOUT (default 10)
• FETCH_MIN_BYTES (default 800)
• JINA_FORCE=1 to skip direct fetch and always use jina.ai

URL Format Note

Fallback URL is built as: https://r.jina.ai/http://<original-host-and-path>