Aegis is a guardrails proxy, not a primary MCP server. Tool definitions are minimal and scattered across test files and demo assets. Only 2 of 5 tools have visible input schemas in the provided code (echo, get_weather, publish_post, list_posts, admin_reset). Descriptions are present but generic (10-50 chars). No parameter descriptions visible. No output schemas documented. No error handling guidance. Tool definitions appear inferred from test fixtures rather than formally registered. This is a proxy/middleware tool, not a production-grade MCP server.

• Add explicit parameter descriptions to all tools. E.g., 'city: City name (string, 2-50 chars, e.g., 'San Francisco'). Used to fetch current weather conditions.'
• Document output schemas for each tool. E.g., publish_post returns {post_id: string, created_at: ISO8601, title: string, content: string}.
• Implement confirmation pattern for destructive tools (admin_reset, publish_post). Require explicit approval before executing irreversible operations.
• Add error handling guidance. E.g., 'If city not found, try search_cities() first' or 'Permission denied: admin_reset requires admin role.'
• Formalize tool registration in main server code (not test fixtures). Use explicit tool definitions with name, description, inputSchema, and outputSchema.