Strong tool naming (verb_noun pattern), comprehensive parameter schemas with enums and constraints, and good descriptions. All 4 tools have clear names (search_, get_, list_, get_), detailed input schemas with type definitions and descriptions, and actionable docstrings. However, output schemas are not formally documented, responses are returned as JSON text blobs without structured field definitions. Error handling is basic (try/catch with JSON error objects) but lacks recovery guidance. No tool annotations (readOnlyHint, idempotentHint) despite all tools being read-only. Parameter descriptions are strong (avg ~80 chars) and include format hints (e.g., 'prefix match', 'comma-separated fields'). Missing: explicit output schema documentation, error classification, and recovery hints.

• Document output schemas for all tools. Define expected fields, types, and structure (e.g., search_services returns {services: [{name, url, protocol, price_sats, health_status, ...}], total_count, limit, offset}).
• Add error classification and recovery hints. Example: 'Service not found (404). Try search_services() with a partial name or category filter.' Distinguish retryable (network timeout) vs user-fixable (invalid ID format) vs fatal errors.
• Add tool annotations via MCP SDK. Mark all 4 tools with readOnlyHint=true to signal safety. Example: server.tool(..., {...}, {readOnlyHint: true}, handler).
• Include pagination metadata in search_services response: total_count, returned_count, next_offset. Document max result limit (currently 200) and default (10).
• Validate input early and return actionable errors. Example: if max_price_usd < 0, return 'Invalid max_price_usd: must be >= 0' instead of passing to API and returning a generic error.