import { BaseGuardrailPlugin } from './base-plugin.js';
import { GuardrailPhase, GuardrailContext, GuardrailResult } from '../types.js';
/**
 * Pattern blocker plugin - blocks or warns on specific patterns
 */
export declare class PatternBlockerPlugin extends BaseGuardrailPlugin {
    name: string;
    phases: GuardrailPhase[];
    private blockedPatterns;
    private blockedPatternsRegex;
    private caseSensitive;
    private actionOnMatch;
    initialize(config: Record<string, unknown>): Promise<void>;
    execute(phase: GuardrailPhase, context: GuardrailContext): Promise<GuardrailResult>;
    /**
     * Find all pattern matches in text
     */
    private findMatches;
    /**
     * Redact blocked patterns from an individual text string
     */
    private redactText;
    /**
     * Get configured patterns (for testing)
     */
    getPatterns(): {
        simple: string[];
        regex: string[];
    };
}
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