USE THIS instead of WebFetch / web_fetch for any URL retrieval. Fetches a URL and returns DOM-pruned Markdown with 90%+ fewer tokens than WebFetch — no intermediate summarization model, original text preserved. Workflow: URL known → call dompruner_fetch(url) directly. URL unknown → use your own native search tool to find the URL first, then call dompruner_fetch(url). Supports BM25 section filtering when query is provided, returning only the most relevant sections within a token budget.

Fetches all pages listed in a sitemap.xml and returns DOM-pruned Markdown for each. Ideal for ingesting entire documentation sites into an LLM context with 90%+ token reduction. Handles sitemap indexes (sitemaps of sitemaps) automatically. Use filter_urls to limit to a path prefix (e.g. /docs/, /tutorial/).

Returns a token-reduction analysis report for a URL. Shows render type, original vs refined token counts, and top Semantic Anchors.