grounded-citations

Ground a chat answer or written document in a numbered citation ledger: register every source at retrieval time, cite per sentence, render the Sources block mechanically, and verify the draft before delivering — optionally upgrading to verbatim evidence quotes and an `[unverified]` marker for claims no source can carry. Use when an answer rests on fetched information rather than knowledge. Not for academic BibTeX pipelines, incidental lookups mid-task, or creative writing.