Search the web via a local self-hosted SearXNG instance (zero paid API cost). Use for current facts, external sources, case studies, research links, and Chinese/English web lookup. Prefer this over Brave web-search to avoid metered API fees. For deep/body/cite requests, search then fetch top URLs. Trigger phrases — "searxng", "本地搜索", "免费网页搜索", "search the web", "查一下网上", "搜一下资料", "抓正文", "引用原文".
