Web Fetcher

Fetch any URL as clean markdown. Two paths: known platforms go through OpenCLI (uses browser login state), everything else falls back through a chain of free markdown services.

Strategy Overview

1. Known platforms (Twitter/X, zhihu, reddit, weibo, xiaohongshu, bilibili, etc.) → OpenCLI first. It uses the user's browser login state, is deterministic, and costs zero LLM tokens.
2. Generic URLs (blogs, docs, articles) → Jina Reader > defuddle.md > markdown.new > WebFetch.

These are soft priorities — skip obviously wrong strategies (e.g., don't try OpenCLI for a random blog post, don't try Jina for a login-walled zhihu page).

Known Platform → OpenCLI Commands