/**
 * atr_scan MCP tool - Scan content for agent threats
 *
 * Runs all configured detection layers:
 * - Layer 1: Regex pattern matching (always)
 * - Layer 2: Skill behavioral fingerprinting (if configured)
 * - Layer 3: Semantic LLM-as-judge (if configured and triggered)
 *
 * @module agent-threat-rules/mcp-tools/scan
 */
import type { ATREngine } from '../engine.js';
export interface ScanInput {
    content: string;
    event_type?: string;
    min_severity?: string;
}
export declare function handleScan(engine: ATREngine, args: Record<string, unknown>): Promise<{
    content: Array<{
        type: string;
        text: string;
    }>;
    isError?: boolean;
}>;
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