MCP Environment & Installation Manager

Implementation Reference

• src/tools/installation-tools.ts:19-43 (handler)

  The core handler implementation for the 'list-installed-mcps' tool. It calls packageManager.getInstalledPackages() and formats the result as JSON text content for MCP response.
  server.tool( "list-installed-mcps", {}, async (_, extra) => { const packages = packageManager.getInstalledPackages(); return { content: [ { type: "text", text: JSON.stringify({ count: packages.length, packages: packages.map(pkg => ({ name: pkg.name, version: pkg.version, installedAt: pkg.installedAt, updatedAt: pkg.updatedAt, usedByConfigs: pkg.usedByConfigs })) }, null, 2) } ] }; } );
• src/server.ts:33-33 (registration)

  Top-level registration call that invokes registerInstallationTools, which registers the list-installed-mcps tool among others.
  registerInstallationTools(server, configService, packageManager);
• src/tools/installation-tools.ts:13-43 (registration)

  The registerInstallationTools function that directly registers the list-installed-mcps tool on the MCP server.
  export function registerInstallationTools( server: McpServer, configService: ConfigService, packageManager: PackageManager ): void { // List installed MCP packages server.tool( "list-installed-mcps", {}, async (_, extra) => { const packages = packageManager.getInstalledPackages(); return { content: [ { type: "text", text: JSON.stringify({ count: packages.length, packages: packages.map(pkg => ({ name: pkg.name, version: pkg.version, installedAt: pkg.installedAt, updatedAt: pkg.updatedAt, usedByConfigs: pkg.usedByConfigs })) }, null, 2) } ] }; } );
• src/services/package-manager.ts:68-70 (helper)

  Helper method getInstalledPackages() used by the tool handler to retrieve the list of all installed MCP packages from the internal registry.
  getInstalledPackages(): InstalledPackage[] { return Object.values(this.registry.packages); }