import type { Harness } from '@mastra/core/harness';
export interface HeadlessArgs {
    prompt?: string;
    timeout?: number;
    format: 'default' | 'json';
    outputFormat?: 'text' | 'json' | 'stream-json';
    continue_: boolean;
    model?: string;
    mode?: 'build' | 'plan' | 'fast';
    thinkingLevel?: 'off' | 'low' | 'medium' | 'high' | 'xhigh';
    settings?: string;
    thread?: string;
    title?: string;
    cloneThread: boolean;
    resourceId?: string;
}
/** Returns true if argv contains --prompt or -p, indicating headless mode. */
export declare function hasHeadlessFlag(argv: string[]): boolean;
/** Parse CLI arguments for headless mode (--prompt, --timeout, --format, --output-format, --continue, --model, --mode, --thinking-level, --settings). */
export declare function parseHeadlessArgs(argv: string[]): HeadlessArgs;
/** Truncate a string to `max` characters, appending "..." if truncated. */
export declare function truncate(s: string, max: number): string;
export declare function printHeadlessUsage(): void;
/**
 * Run headless mode: subscribe to harness events with auto-approval,
 * optionally resume a thread, send the prompt, and wait for completion.
 *
 * Returns the exit code (0 = success, 1 = error/aborted, 2 = timeout).
 */
export declare function runHeadless<TState extends Record<string, unknown>>(harness: Harness<TState>, args: HeadlessArgs & {
    prompt: string;
}, effectiveDefaults?: Record<string, string>): Promise<number>;
/**
 * Headless mode main entry point: parse arguments, read stdin, initialize
 * MastraCode, and run headless mode.
 */
export declare function headlessMain(predrainedInput?: string | null): Promise<never>;
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