Strong foundation with 19 well-named tools, comprehensive schemas, and Italian descriptions. All tools have clear verb-noun naming (fic_list_*, fic_get_*, fic_create_*, fic_update_*, fic_delete_*). Input schemas are complete with type definitions and parameter descriptions. However, descriptions are brief (avg ~80 chars, below the 194-char baseline), and output schemas are not documented. Error handling via describeError() is good but lacks recovery guidance in tool descriptions. No tool annotations visible in registration code (toolAnnotations=true in features but not evident in src/tools/). Tool composition is clean, each tool has one responsibility, and IDs chain properly across list/get/create operations.

• Document output schemas for all tools. Add a 'Returns' section to each tool description specifying JSON structure, e.g., 'Returns: {clients: [{id, name, email, ...}], total, page, perPage}'.
• Expand tool descriptions to 150 - 250 chars. Add WHEN-to-use context: 'Use fic_list_quotes to search multiple quotes; use fic_get_document for full details of a specific quote by ID.'
• Verify tool annotations are registered. In src/tools/registry.ts, confirm that destructive tools (fic_delete_product) and read-only tools (fic_list_*) are registered with readOnlyHint/destructiveHint set.
• Enhance error messages with recovery hints. E.g., 'Client not found (ID 999). Try fic_list_clients(query="...") to find the correct client ID.'
• Add confirmation step to fic_delete_product. Introduce a 'confirm' boolean parameter (default false) or split into fic_delete_product_preview + fic_delete_product_confirm to prevent accidental deletions.