This MCP server defines 25 tools across two functional areas (web extraction and Amazon market analysis). While parameter schemas are present and mostly typed, there are significant quality gaps: (1) Many tool descriptions are adequate but generic, lacking LLM-optimized context on WHEN to use each tool vs alternatives. (2) Output schemas are undocumented, the code shows these are HTTP API wrappers but nowhere visible are the response field definitions that downstream agents need for chaining. (3) Parameter descriptions vary in quality; several lack format/constraint guidance. (4) No error handling patterns visible, tools return raw API responses without recovery guidance. (5) Tool naming is generally good (verb_noun pattern holds), but some tools are near-synonyms (crawl vs map vs interactive) without clear differentiation. (6) Security patterns are absent, API key handling is present but no permission scopes or audit trails visible. Overall, this reads as a thin wrapper over a third-party API with minimal agent-specific polish.

• IMMEDIATE: Document response schemas for all 25 tools. For each, specify: (1) top-level fields, (2) data types, (3) example values, (4) IDs/references needed for downstream tool chaining. A JSON response schema block for each tool is mandatory.
• Convert free-text parameters to enums. 'format' → enum: [json, markdown, rawHtml]; 'scrape_format' → enum: [json, markdown]; 'mode' (products) → enum: [fast-movers, emerging, single-variant, high-demand-low-barrier, long-tail, underserved, new-release]; 'sitemap_mode' → document valid values. Add examples in parameter descriptions.
• Rewrite 12+ tool descriptions to include: (1) what it does, (2) WHEN to use it (vs alternatives), (3) prerequisites (e.g., 'Call categories() first to get category_id'), (4) expected output shape. Target 100-180 characters. Example: 'Get detailed Amazon metrics (volume, CPC, competition) for keywords on a specific date. Returns time-series data. Use after identifying keywords with keyword-extends().'
• Rename weak tools: (a) 'map' → 'discover_site_structure' or 'map_website_pages'; (b) 'product' → 'get_product_details' or 'product_details'; (c) 'report' → 'generate_market_report'; (d) 'keyword-extends' → 'expand_keywords' or 'get_keyword_suggestions'; (e) 'opportunity' → 'identify_market_opportunities'.
• Add parameter constraints for all text fields: 'include_paths' / 'exclude_paths' → examples: '*.html, /blog/*, /product/*'; 'tbs' → valid values (e.g., qdr:d, qdr:w, qdr:m, qdr:y); 'window_periods' → numeric range (1 - 365) with description (e.g., '30 = 30-day trend window').