Find notes by words in their text, across your brain and the brains shared with you. Returns note paths with the matching LINES as excerpts (marked with …). A hit from a shared brain is tagged [<owner>'s brain · workspace=<id>]: pass that workspace to read_file/load_context/start_session for it. Excerpts are not the note: before answering from one, call read_file on its path; for the surrounding context, load_context on the note's folder. Each hit carries the note's date (from its frontmatter or file name, else when it was written). Hits under a Maybe related line match only SOME of the words: prefer the ones above it. Use 2-4 keywords, not a sentence. path narrows the search to one branch (a client, a project): use it whenever you already know where you are working.