blah-mcp

import { readFileSync } from 'fs'; import { BlahValidator } from '@blahai/schema'; // Initialize the validator once const validator = new BlahValidator(); // Define types for our manifest export interface BlahManifest { name: string; version: string; description?: string; tools: BlahTool[]; prompts?: BlahPrompt[]; resources?: BlahResource[]; flows?: BlahFlow[]; extends?: Record<string, string>; // Map of extension names to paths/URLs env?: Record<string, string>; // Environment variables [key: string]: any; } export interface BlahTool { name: string; description: string; command?: string; [key: string]: any; } export interface BlahPrompt { name: string; content: string; [key: string]: any; } export interface BlahResource { name: string; type: string; [key: string]: any; } export interface BlahFlowNode { name: string; type: string; category: string; parameters: Record<string, any>; text: string; [key: string]: any; } export interface BlahFlowEdge { name: string; startNodeName: string; endNodeName: string; condition?: string; if?: string; value?: string; [key: string]: any; } export interface BlahFlow { name: string; description?: string; nodes: BlahFlowNode[]; edges: BlahFlowEdge[]; [key: string]: any; } /** * Validates a BLAH manifest against the schema. * @param manifest The BLAH manifest to validate * @returns The validated manifest object or throws an error */ export function validateBlahManifest(manifest: any): BlahManifest { // Make a copy of the manifest to validate const manifestToValidate = { ...manifest }; // Store extends property if present const extendsValue = manifestToValidate.extends; // Remove extends property temporarily for validation // (since it might not be in the schema yet) if (extendsValue !== undefined) { delete manifestToValidate.extends; } // Validate against schema const result = validator.validate(manifestToValidate); if (!result.valid) { throw new Error(`Invalid manifest: ${JSON.stringify(result.errors, null, 2)}`); } // Restore extends property if it was present if (extendsValue !== undefined) { manifest.extends = extendsValue; } return manifest as BlahManifest; } /** * Validates a BLAH manifest file against the schema. * @param filePath Path to the BLAH manifest file * @returns The validated manifest object or throws an error */ export function validateBlahManifestFile(filePath: string): BlahManifest { try { const content = readFileSync(filePath, 'utf-8'); const manifest = JSON.parse(content); return validateBlahManifest(manifest); } catch (error) { if (error instanceof Error) { throw new Error(`Error validating manifest file: ${error.message}`); } throw new Error('Unknown error validating manifest file'); } }