search_documents and cross_topic_search both perform semantic search, but their descriptions clearly distinguish single-discipline versus cross-discipline queries. Other tools (list, stats, ingest) are entirely distinct in purpose.

All tools follow a consistent snake_case verb_noun pattern: search_documents, list_documents, cross_topic_search, get_index_stats, ingest_new_documents. The pattern is uniform and predictable.

With only 5 tools, the set is tightly scoped to the core operations of searching, browsing, and maintaining a document index. Each tool serves a clear purpose without redundancy or bloat.

The surface covers core search, listing, stats, and ingestion workflows. It lacks an explicit delete/remove operation for documents, but this may be handled automatically or is a minor gap given the watcher-based ingestion model.