Tool Filter MCP

import { ProxyConfig, FilteredTool } from './types.js'; import { UpstreamConnection, MCPClient } from './upstream-client.js'; import { applyFilters } from './filter.js'; import { formatCommandDisplay } from './utils/command-formatter.js'; export class ProxyOrchestrator { private config: ProxyConfig; private upstreamConnection: UpstreamConnection; private filteredTools: FilteredTool[] | null = null; private ready: boolean = false; constructor(config: ProxyConfig, client: MCPClient) { this.config = config; // Determine identifier string based on config mode const identifier = config.mode === 'http' ? config.upstreamUrl : formatCommandDisplay(config.upstreamCommand, config.upstreamArgs); this.upstreamConnection = new UpstreamConnection( identifier, client, config.timeouts ); } async startup(): Promise<void> { await this.upstreamConnection.connect(); const tools = await this.upstreamConnection.fetchTools(); const filterResult = applyFilters(tools, this.config.denyPatterns); this.filteredTools = filterResult.allowed; this.ready = true; } getCachedTools(): FilteredTool[] { if (!this.ready || this.filteredTools === null) { throw new Error('Proxy not ready'); } return [...this.filteredTools]; } isToolAllowed(name: string): boolean { if (!this.ready || this.filteredTools === null) { throw new Error('Proxy not ready'); } return this.filteredTools.some((tool) => tool.name === name); } isReady(): boolean { return this.ready; } getUpstreamConnection(): UpstreamConnection { return this.upstreamConnection; } shutdown(): void { this.upstreamConnection.disconnect(); this.ready = false; } }