export interface McpTempSandbox {
    root: string;
    env: NodeJS.ProcessEnv;
    cleanup: () => void;
}
export interface McpTempReaperOptions {
    nowMs?: number;
    staleAfterMs?: number;
    isProcessAlive?: (pid: number) => boolean;
}
/** Remove launcher-owned roots left behind when the launcher was killed abruptly. */
export declare function reapStaleMcpTempSandboxes(parent: string, opts?: McpTempReaperOptions): number;
/**
 * Give one external MCP process exclusive ownership of its temporary files.
 *
 * Some browser drivers create launch artifacts before their own cleanup has
 * been registered. Keeping those artifacts below one launcher-owned root lets
 * Jinn remove the whole tree when the MCP process exits instead of leaking
 * thousands of siblings into the machine-wide temporary directory.
 */
export declare function createMcpTempSandbox(env?: NodeJS.ProcessEnv): McpTempSandbox;
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