n8n-workflow-builder-mcp

/** * MCP Utilities * * Utilities for MCP protocol handling */ export interface ToolDefinition { name: string; description: string; input_schema: Record<string, unknown>; output_schema?: Record<string, unknown>; } export interface FormattedToolDefinition { name: string; description: string; parameters: Record<string, unknown>; returns?: Record<string, unknown>; } export interface SuccessResponse { status: number; data: unknown; } export interface ErrorResponse { status: number; error: { message: string; code: string; details: Record<string, unknown>; }; } /** * Format tool definitions for MCP response */ export const formatToolDefinitions = (tools: Record<string, ToolDefinition>): FormattedToolDefinition[] => { return Object.keys(tools).map(key => { const tool = tools[key]; return { name: tool.name, description: tool.description, parameters: tool.input_schema, returns: tool.output_schema }; }); }; /** * Create a standardized success response */ export const createSuccessResponse = (data: unknown, status: number = 200): SuccessResponse => { return { status, data }; }; /** * Create a standardized error response */ export const createErrorResponse = ( message: string, code: string = 'ERROR', status: number = 400, details: Record<string, unknown> = {} ): ErrorResponse => { return { status, error: { message, code, details } }; }; /** * Parse tool name from request to standardized format */ export const parseToolName = (name: string | null | undefined): string | null => { if (!name) return null; // Handle different tool naming conventions // e.g., 'node.search', 'node-search', 'nodeSearch' -> 'node_search' // Replace dots and dashes with underscores let parsedName = name.replace(/[.-]/g, '_'); // Convert camelCase to snake_case parsedName = parsedName.replace(/([a-z])([A-Z])/g, '$1_$2').toLowerCase(); return parsedName; };