query and execute both run SQL but are clearly differentiated by whether results are returned, while the remaining tools have distinct management purposes. isAttached, getUserStats, and listUsers target different aspects of user database state. Only query/execute could potentially be confused, but the descriptions resolve the boundary.

Tool names mix lowercase single-word verbs like query and execute with camelCase compound names like getUserStats and detachUser. isAttached also follows a different predicate-style pattern rather than verb_noun. The naming style is inconsistent across the set.

Six tools is a well-scoped size for this server's purpose. Each tool covers a distinct need: SQL execution, user statistics, cache status, cache eviction, and user listing. No tool feels redundant or extraneous.

The tool surface covers the core workflow of querying and executing SQL, inspecting user state, and managing cached database attachment. A manual attach tool is missing, but automatic attachment on first use likely makes it unnecessary. Overall the domain is well covered with only minor optional gaps.