Two tools with identical descriptions ('Add two numbers together') despite different names and purposes. Tool 'list-listing' has a misleading description, it performs addition, not listing. Both tools have proper JSON Schema with typed parameters (a, b as numbers) and descriptions for each param. However, naming is problematic: 'list-listing' violates verb_noun convention and does not reflect its actual behavior (addition). Schemas are present and valid, but descriptions fail to disambiguate tools or explain when to use each. No error handling, no output schema documentation, no tool annotations. Resources feature is present (greeting resource in server.ts) but not evaluated as a tool.

• Rename 'list-listing' to 'add_numbers' or simply 'add' to match verb_noun convention and clarify intent.
• Rewrite descriptions to be distinct and LLM-optimized (50 - 200 chars). E.g., 'add': 'Add two numbers and return their sum. Accepts any real numbers.'; 'add_numbers' (if keeping both): 'Perform arithmetic addition on two numeric inputs.'
• Document output schema explicitly: 'Returns an object with a single field: result (number, the sum of a and b).'
• Add error handling: validate inputs are numbers; return 'Invalid input: a and b must be numbers' if validation fails.
• Add tool annotations to schema: set readOnlyHint=true and idempotentHint=true for both tools to signal they are safe to retry.