This MCP server has severe definition quality issues. Tool definitions are minimal with insufficient descriptions, missing parameter documentation, and no visible input schemas in the code. The server appears to be a stub implementation with mock responses rather than a production-grade integration. Tool naming is generic ('execute_skill_action'), parameter descriptions are sparse, and there is no evidence of schema validation or proper error handling.

• Add formal JSON Schema input definitions for both tools. At minimum, include type, description, and constraints for all parameters.
• Rename 'execute_skill_action' to a specific verb_noun pair like 'aggregate_conversions' or 'compute_affiliate_metrics'. Clarify what parameters it accepts.
• Add minimum/maximum constraints to 'tracking_window_days' parameter (e.g., 1 - 365). Add enum validation or pattern constraint to 'creator_affiliate_code' (e.g., alphanumeric, 3 - 20 chars).
• Document the output schema for 'aggregate_affiliate_conversions' with explicit field types and descriptions. Make it machine-parseable, not just inferred from examples.
• Add error handling with recovery guidance. E.g., if affiliate code not found, suggest 'Call list_valid_affiliate_codes() to see available codes' or similar.
• Implement input validation with actionable error messages. Return 'Invalid tracking_window_days: -5. Must be between 1 and 365 days.' instead of generic errors.
• Add parameter dependency notes if any. E.g., 'If creator_affiliate_code is omitted, uses default SARAH20. Ensure this is the intended code.'
• Consider splitting 'execute_skill_action' into domain-specific tools (e.g., 'get_affiliate_metrics', 'export_commission_csv') so agents can compose them more precisely.