/**
 * Severity Classification Engine
 *
 * Maps injection pattern categories to standardized severity levels.
 * Used for threat reporting and compliance documentation.
 */
export type Severity = 'CRITICAL' | 'HIGH' | 'MEDIUM' | 'LOW';
export type OverallSeverity = Severity | 'CLEAN';
/**
 * Classify severity for a single pattern category
 */
export declare function classifySeverity(patternCategory: string): Severity;
/**
 * Interface for a threat finding
 */
export interface Finding {
    pattern_category: string;
    severity: Severity;
}
/**
 * Aggregate severity across multiple findings
 * Returns the highest severity level found, or CLEAN if no findings
 */
export declare function aggregateSeverity(findings: Finding[]): OverallSeverity;
/**
 * Count findings by severity level
 */
export declare function countBySeverity(findings: Finding[]): Record<Severity, number>;
/**
 * Get emoji for severity level (for Markdown reports)
 */
export declare function getSeverityEmoji(severity: Severity | OverallSeverity): string;
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