Single tool 'execute_skill_action' has critical definition gaps. Description is present (67 chars) but lacks WHEN/WHY context and actionable guidance. Input schema visible but severely incomplete: 'customer_lat_lng' typed as 'tuple' (non-standard JSON Schema) with minimal description; 'order_sku_list' typed as 'array' with no item type or constraints. No output schema documented. No error handling guidance. Tool name uses 'execute' (generic verb) rather than domain-specific action like 'dispatch_order' or 'route_delivery'. No parameter validation rules, ranges, or format constraints visible. Baseline: A+ tools average 194-char descriptions with 100% param coverage; this tool has ~67 chars and incomplete schemas.

• Rename tool to 'dispatch_order' or 'route_delivery' to signal domain action clearly.
• Replace 'tuple' with proper JSON Schema: {"type": "object", "properties": {"latitude": {"type": "number", "minimum": -90, "maximum": 90}, "longitude": {"type": "number", "minimum": -180, "maximum": 180}}, "required": ["latitude", "longitude"]}
• Add output schema documenting all returned fields: dispatch_id (string), assigned_darkstore (string), picker_pick_and_pack_time_seconds (integer), courier_motorcycle_speed_kmh (number), distance_to_door_km (number), estimated_delivery_time_mins (number), on_time_guarantee_met (boolean).
• Expand description to 150-200 chars: 'Dispatch and route an ultra-fast grocery order to the nearest darkstore. Returns dispatch ID, assigned hub, pick/pack time, and delivery ETA. Call when customer location and SKU list are confirmed.'
• Add parameter descriptions: 'customer_lat_lng: Customer delivery address as (latitude, longitude). Latitude -90 to 90, longitude -180 to 180.' and 'order_sku_list: Array of SKU identifiers (e.g. ["SKU_MILK_FRESH", "SKU_BREAD"]). Min 1 item, max 50 items.'