/**
 * Run a Forge .cjs tool as a subprocess.
 *
 * @param toolPath   Absolute path to the .cjs tool.
 * @param argv       Arguments passed after "node <toolPath>".
 * @param cwd        Directory containing .forge/ — becomes subprocess cwd.
 * @param timeoutMs  Subprocess timeout in milliseconds.
 */
export declare function runCjsMcp(toolPath: string, argv: string[], cwd: string, timeoutMs: number): Promise<{
    stdout: string;
    stderr: string;
}>;