/**
 * Sandbox backend abstraction — common interface for all sandbox modes.
 *
 * Each backend (docker, sandbox-exec, bubblewrap, firejail) implements
 * this interface. The `auto` mode selects the best available backend
 * for the current platform.
 */
export interface SandboxExecResult {
    stdout: string;
    stderr: string;
    exitCode: number;
}
export interface SandboxExecOpts {
    timeout?: number;
    cwd?: string;
    abort?: AbortSignal;
    stdin?: string;
    env?: Record<string, string>;
}
/**
 * A sandbox backend that can execute commands in an isolated environment.
 */
export interface SandboxBackend {
    /** Backend identifier. */
    readonly name: string;
    /** Check whether this backend is available on the current system. */
    isAvailable(): Promise<boolean>;
    /**
     * Execute a command inside the sandbox.
     *
     * @param command - Shell command string to execute.
     * @param projectDir - Absolute path to the project directory (mounted read-write).
     * @param opts - Execution options.
     */
    exec(command: string, projectDir: string, opts?: SandboxExecOpts): Promise<SandboxExecResult>;
}
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