Single tool 'search_items' is well-defined with clear naming, comprehensive description (89 chars), and complete input/output schemas using Zod. Tool name starts with action verb 'search' and accurately reflects behavior. Input schema includes proper type constraints (minLength, min/max for limit). Output schema is documented with structured results array. Tool annotations (readOnlyHint) are present. No destructive operations, so confirmation patterns not applicable.

• Add description to 'limit' parameter in Zod schema: `.describe('Maximum number of results to return (1-50, default 10)')` to match the 72-char baseline for param annotations.
• Document error cases in tool description: 'Returns empty results if no items match the query. Query is case-insensitive and matches partial titles.'
• Add a 'total' field to output schema to indicate total matching items, enabling the LLM to understand if results are truncated.
• Consider adding a 'match_type' parameter (enum: 'contains', 'starts_with', 'exact') to give agents finer control over search behavior.
• Add explicit validation error message if query is empty or whitespace-only, guiding the LLM to retry with a non-empty keyword.