Read the source behind a search hit [read]

Rechecks ownership, workspace and deletion. Accepts memory, session_message, trace_message, memory_note, file, skill_file and agent references from search; a file that is not text reads as text null. Memory returns the current entry and flags version changes; it does not preserve old versions. Message reads return bounded text and adjacent references for surrounding context. Use nextOffset for a long main message; follow adjacent refs to continue reading. All text together is bounded to 20,000 characters per page.