/**
 * Trace Validator — Validate trace file format with detailed diagnostics.
 */
export interface TraceValidationResult {
    valid: boolean;
    errors: TraceValidationMessage[];
    warnings: TraceValidationMessage[];
}
export interface TraceValidationMessage {
    level: 'error' | 'warning';
    message: string;
    path?: string;
}
/**
 * Validate a trace object (already parsed from JSON).
 */
export declare function validateTraceFormat(trace: any): TraceValidationResult;
/**
 * Validate a raw JSON string as a trace file.
 */
export declare function validateTraceFile(jsonString: string): TraceValidationResult;
/**
 * Format validation results for CLI.
 */
export declare function formatTraceValidation(result: TraceValidationResult): string;
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