Each tool has a clearly distinct purpose with no overlap: delete_documents removes documents, list_documents retrieves them, search finds similar content, and upsert_documents inserts or updates. An agent can easily tell them apart based on their specific actions.

All tool names follow a consistent verb_noun pattern (e.g., delete_documents, list_documents, upsert_documents), with 'search' as a slight deviation that still fits semantically. The naming is predictable and readable throughout.

With 4 tools, the server is well-scoped for document management, covering core operations like listing, searching, upserting, and deleting. Each tool earns its place without being too sparse or bloated.

The tool set provides strong coverage for basic document CRUD and search operations, but lacks explicit tools for actions like retrieving a single document by ID or updating metadata, which could be minor gaps agents might need to work around.