Search the web using multiple search engines. Use this tool when you need to find current information, articles, or references from the internet. Supports DuckDuckGo, Google, and Bing as free engines, with optional SerpAPI (requires SERPAPI_KEY env var) and Tavily (requires TAVILY_API_KEY env var) for higher-quality, more stable results. By default ('both'), queries DuckDuckGo and Bing concurrently and merges results, providing good coverage without any API keys. Each result includes title, URL, and description snippet. Rate limiting and caching are applied automatically.

Extract readable text content from a specific webpage URL. Use this tool after web_search when you need the full text of a page found in search results. The tool strips scripts, styles, and navigation elements, returning only the meaningful text content. Output is truncated to 2000 characters to stay within context limits. Returns an empty string if the page cannot be fetched or parsed.