Known URLs/programmatic data → `read`. Query: site: or -site:, after: or before: YYYY-MM-DD, inurl:, intitle:, filetype:, "phrase", -term, OR.{{#if xSearch}} X posts/reactions → `site:x.com`, `site:x.com/<handle>`, or `from:<handle>`; `-from:<handle>` excludes.{{/if}} Prefer primary sources; MUST link citations.