import { GuardrailPlugin, GuardrailPhase, GuardrailContext, GuardrailResult } from '../types.js';
/**
 * Abstract base class for guardrail plugins
 */
export declare abstract class BaseGuardrailPlugin implements GuardrailPlugin {
    abstract name: string;
    abstract phases: GuardrailPhase[];
    enabled: boolean;
    priority: number;
    protected config: Record<string, unknown>;
    initialize(config: Record<string, unknown>): Promise<void>;
    abstract execute(phase: GuardrailPhase, context: GuardrailContext): Promise<GuardrailResult>;
    shutdown(): Promise<void>;
    /**
     * Helper to create an 'allow' result
     */
    protected allow(context: GuardrailContext): GuardrailResult;
    /**
     * Helper to create a 'block' result
     */
    protected block(context: GuardrailContext, reason: string): GuardrailResult;
    /**
     * Helper to create a 'modify' result
     */
    protected modify(context: GuardrailContext): GuardrailResult;
    /**
     * Helper to add a violation to context
     */
    protected addViolation(context: GuardrailContext, phase: GuardrailPhase, rule: string, severity: 'info' | 'warning' | 'error' | 'critical', message: string, details?: Record<string, unknown>): void;
    /**
     * Helper to add a modification to context
     */
    protected addModification(context: GuardrailContext, phase: GuardrailPhase, field: string, reason: string, originalValue?: unknown, newValue?: unknown): void;
}
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