Single tool 'execute_skill_action' has a reasonable name starting with verb, but critical gaps undermine quality. Description is 67 chars (below 10-char minimum for meaningful context). Input schema present with 3 parameters, all typed (string, number, number) and described, but output schema is completely absent, LLMs cannot plan downstream calls or extract results. No error handling, no validation guidance, no recovery paths. Tool appears minimally functional for a telematics skill but lacks production-grade documentation and structure.

• Add a complete output schema documenting all 7 response fields (telematics_packet_id, vehicle_vin, fuel_cell_efficiency_pct, hydrogen_tank_soc_pct, estimated_zero_emission_range_km, type4_composite_cylinder_safety_status, tailpipe_emissions_water_only) with types and descriptions.
• Expand tool description to 120 - 180 chars: 'Monitor hydrogen fuel cell vehicle telematics in real-time. Returns efficiency, tank state-of-charge, range estimate, and safety status. Use this to track fleet health and detect anomalies.'
• Add parameter constraints: tank_pressure_bar (350 - 700 bar, typical hydrogen tank range), ambient_temp_c ( - 40 to +60°C, typical vehicle operating range). Include units in descriptions.
• Implement error handling: validate VIN format (17 alphanumeric chars), pressure bounds, temperature bounds. Return structured errors like '{"error": "Invalid tank pressure: 800 bar exceeds safe limit of 700 bar. Check sensor calibration."}'
• Migrate from STDIO to HTTP+SSE or Streamable HTTP transport to enable remote client access and compliance with current MCP spec (2026-07-28).