Critical issues: 4 tools are exact duplicates (get_current_time appears 3x, search_contacts appears 2x, search_products appears 2x), indicating poor tool registration or data quality. Unique tools: get_current_time, search_contacts, search_products. Descriptions are present but generic (avg 120 chars, below 194-char baseline). Parameters lack descriptions in several variants (tools 7-8 have bare 'query' and 'category' with no descriptions). Schemas are present but inconsistent across duplicates. No error handling guidance, no output schema documentation, no tool annotations. STDIO transport caps score at 50 maximum; combined with definition gaps, score is 32.

• Deduplicate tool definitions: consolidate 3 get_current_time variants into 1, 2 search_contacts into 1, 2 search_products into 1. Use a single server.py or merge server_advanced.py into server.py.
• Add parameter descriptions to all tools: 'timezone' should explain IANA format and UTC default; 'query' should explain what fields are searched; 'category' should list valid enum values ('Consulting', 'Implementation', 'Support').
• Document output schemas: define the structure of each tool's response (e.g., get_current_time returns {timezone, datetime, day_of_week, utc_offset}; search_contacts returns {query, count, contacts: [{id, name, email, company, role}]}).
• Add error recovery guidance: replace 'Unknown timezone' with 'Unknown timezone: {tz_name}. Use IANA format (e.g., America/New_York, Europe/London). Call list_timezones() for valid options.' Categorize errors as retryable vs user-fixable.
• Add tool annotations: set readOnlyHint=true on all tools to signal to LLMs that these are safe to call without confirmation. Consider adding idempotentHint=true to search tools.