This is a test framework server with 8 basic tools. All tools have descriptions (10-30 chars, below the 50-200 char LLM-optimized baseline) and complete input schemas with typed parameters. However, descriptions are minimal and lack context about when/why to use each tool. No output schemas documented. Error handling present but generic. Tool names follow verb_noun convention (get_user, create_user, delete_user) which is good, but descriptions do not explain state-modifying consequences or recovery paths. Composition is sound, each tool has one responsibility. No tool annotations (readOnlyHint, destructiveHint) despite clear risk levels (WRITE, DESTRUCTIVE). This is a typical community test server: functional but not production-grade.

• Expand tool descriptions to 50-200 characters. Example: 'add' → 'Add two numbers and return the sum. Use for arithmetic operations. Returns a single numeric result.'
• Document output schemas for all tools. E.g., add returns {result: number}, get_user returns {id: string, name: string, email: string}.
• Add tool annotations: mark create_user with destructiveHint=false (it's a write but not destructive), delete_user with destructiveHint=true, and all read tools with readOnlyHint=true.
• Add pagination to list_users: accept optional limit (default 20, max 100) and offset parameters; return {users: [...], total: number, hasMore: boolean}.
• Enhance error messages with recovery guidance: 'User not found: {id}. Call list_users() to see available users, or create_user() to add a new one.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry