This server has a single tool 'execute_skill_action' with critical definition gaps. The tool description is present but extremely generic (47 chars, below the 50-200 char LLM-optimized range). No input schema is visible in the source code, the tool accepts no documented parameters despite the client code showing three parameters (vehicle_id, odometer_km, current_soh_pct). The output schema is not documented. The tool name uses a generic verb ('execute') rather than a domain-specific action verb. No error handling, validation, or recovery guidance is present. The implementation is a stub that only prints a JSON status message and does not actually invoke the underlying client logic.

• Add explicit input schema to execute_skill_action with three parameters: vehicle_id (string, required, description: 'EV identifier e.g. EV_IONIQ5_8812'), odometer_km (number, required, min: 0, description: 'Current vehicle odometer reading in kilometers'), current_soh_pct (number, required, min: 0, max: 100, description: 'Battery state of health percentage 0-100').
• Rename tool to 'assess_ev_subscription_asset' to use a domain-specific action verb matching the client method name and actual behavior.
• Expand description to 80-150 chars: 'Assess EV subscription asset battery health and residual value. Returns monthly subscription cost, battery SOH percentage, second-life BESS residual value, and predictive maintenance status. Call this to evaluate subscription economics and battery degradation risk.'
• Document output schema with 7 fields: assessment_id (string), vehicle_id (string), all_inclusive_monthly_subscription_usd (number), battery_state_of_health_soh_pct (number), second_life_bess_residual_value_usd (number), telematics_predictive_maintenance_ok (boolean), insurance_charging_included (boolean).
• Implement actual MCP protocol in mcp_server.py: parse JSON-RPC requests from stdin, invoke the client.assess_ev_subscription_asset() method with parameters, return structured JSON-RPC responses with the result object. Use a proper MCP library or implement the full request/response cycle.