Server has 8 tools with consistent naming (verb_noun pattern) and complete input schemas. All tools have descriptions (avg 68 chars, within baseline 34-392). However, descriptions are generic and lack LLM-optimization guidance (e.g., 'when to use', 'prerequisites', 'what it returns'). Parameter descriptions are present but minimal. No output schemas documented. Error handling and recovery guidance absent. Missing tool annotations (readOnlyHint, destructiveHint). Composition is sound, tools are single-responsibility and chainable via SKU/slug identifiers.

• Document output schemas for all tools. E.g., search_products returns {products: [{sku, name, price, category}], total, page, per_page}. Include field types and descriptions.
• Enhance tool descriptions to 100-200 chars with WHEN/WHY/WHAT guidance. E.g., 'Search the product catalog by name, category, or price range. Use this to find products matching user criteria; use get_product if you already have a SKU. Returns paginated results (default 20 per page).'
• Add tool annotations: mark read-only tools (search_products, get_product, list_categories, get_cart) with readOnlyHint=true; mark clear_cart with destructiveHint=true; mark idempotent tools (get_*) with idempotentHint=true.
• Implement error handling with actionable recovery guidance. E.g., if SKU not found, return 'SKU "ABC123" not found. Call search_products to find valid SKUs.' If quantity exceeds stock, return 'Only 5 units available; requested 10. Reduce quantity or check back later.'
• Add parameter descriptions explaining constraints and trade-offs. E.g., 'per_page: Results per page (1-100, default 20). Larger values return more results but increase response time and token usage.'