# Web Search

> Search systems, retrieval pipelines, source selection, grounding, and the evidence agents need from the open web.

## Field notes

- [When can an agent trust a web search result?](https://www.searchforagents.com/blog/when-can-an-agent-trust-a-web-search-result) — A 2026 UK holiday calendar says Scotland has nine bank holidays; official records list ten. Follow a search result to its source and learn a five-check method for verifiable answers.