/**
 * Validation Status Checker
 *
 * Provides programmatic interface to check if validation has already passed
 * for the current working tree state using git notes.
 */
import type { VibeValidateConfig } from '@vibe-validate/config';
/**
 * Check validation status for current working tree
 *
 * Exit codes:
 *   0 = Validation already passed (skip validation)
 *   1 = Validation not passed or needed (run validation)
 *   2 = No history found (run validation)
 *   3 = Git tree hash changed (run validation)
 *
 * @param _config - vibe-validate configuration (unused, kept for API compatibility)
 * @param yaml - If true, output YAML to stdout instead of human-readable text
 */
export declare function checkValidationStatus(_config: VibeValidateConfig, yaml?: boolean): Promise<void>;
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