Search the web and return ranked, content-rich results.

Queries multiple search engines, fetches full page content, extracts clean text, scrubs prompt injections, chunks by semantic boundaries, and ranks chunks by cosine similarity to the query.

Use this when the user asks about current information, facts, documentation, or anything that requires up-to-date web results.

Returns markdown-formatted ranked chunks with cosine similarity scores, source URLs, and surrounding parent context for each chunk.