Check page size and metadata before fetching. Returns estimated tokens, content type, and whether fetch is safe for context window. Always call this first to avoid context flooding.

Fetch URL with automatic truncation if content exceeds token limit. Use web_preflight first to check size. Returns markdown content.

Extract only code blocks from a page. Ideal for documentation pages with code examples. Returns code blocks with language annotations.

Fetch only content under a specific heading. Case-insensitive heading match. Use when you only need a specific part of a large document.

Fetch large documents in chunks. Use for paginated reading of large docs. Returns chunk content plus metadata about total chunks available.

Extract all links from a page. Returns a markdown list of links with text and URL. Optionally filter by pattern or external links only.

Extract tables from a page and return as markdown tables. Handles thead/tbody, th/td cells, colspan, and captions.