export type ValidationSeverity = "error" | "warning" | "info";
export interface ValidationFinding {
    severity: ValidationSeverity;
    changeId: string;
    message: string;
    detail?: string;
}
export interface ValidationResult {
    findings: ValidationFinding[];
    hasError: boolean;
}
/**
 * Validate change directory consistency.
 *
 * Scans all change directories under `.aiws/changes/` and checks:
 *
 * - R1 (error): change directory exists but lacks `.ws-change.json`
 * - R2 (error): `.ws-change.json` exists but corresponding git branch
 *   `change/<id>` does not exist on the filesystem
 * - R3 (warning): change has `finish_done` event in metrics but is still
 *   in the active changes directory (not archived)
 * - R4 (info): change has had no activity for more than 7 days
 *
 * Only directories that look like change IDs (kebab-case, no leading dot)
 * are inspected. The special dirs `archive` and `templates` are skipped.
 */
export declare function validateChanges(workspaceRoot: string): Promise<ValidationResult>;
/**
 * Check that review files (spec-review.md, quality-review.md) have meaningful content
 * beyond just "PASS" or empty. Flags review gate bypass attempts.
 */
export declare function validateReviewQuality(workspaceRoot: string): Promise<ValidationResult>;
/**
 * Format validation findings as a human-readable string.
 */
export declare function formatValidationFindings(findings: ValidationFinding[]): string;