Server has 16 tools with explicit definitions, descriptions, and parameter schemas. Naming follows verb_noun convention (browser_start, search_products, etc.). Descriptions are present and moderately detailed (avg ~120 chars), explaining WHAT each tool does and key constraints. However, parameter descriptions are inconsistent: some params lack descriptions entirely (e.g., browser_start has empty input {}), and several critical parameters have minimal guidance. Output schemas are not formally documented, responses are inferred from code. Error handling is present but lacks recovery guidance. Security constraints are well-articulated in tool descriptions (e.g., 'defaults only read', 'blocks purchase/payment'), but no formal permission gates or audit logging visible. Composition is sound: tools chain logically (search_products → get_product_detail). Major gaps: no pagination support despite potentially large result sets, no per-item error reporting for batch operations, and no documented output schema structure.

• Add explicit JSON Schema input definitions for browser_start, browser_status, go_back, browser_close. Even empty-input tools should declare 'type: object, properties: {}, required: []' for clarity.
• Document output schemas for all tools. For search_products and get_product_detail, formally specify: { product_url: string, product_parameters: object, good_reviews: array, bad_reviews: array, status: { success: boolean, reason?: string } }.
• Implement pagination: add page/limit parameters to search_products and list_page_elements; return total_count and next_cursor in responses. Cap default limit at 20-50 items.
• Enhance error responses with recovery guidance. Instead of raw SafetyError, return { success: false, error: 'Click blocked: element is a purchase button', recovery: 'Use search_products or get_product_detail instead' }.
• Add tool annotations via FastMCP: mark browser_start, open_login, open_url, page_snapshot, scroll_page, go_back, take_screenshot as readOnlyHint=true; mark click_page_element, type_into_element as destructiveHint=true; mark search_products, get_product_detail as idempotentHint=true.