/**
 * Tier 2 Scanner — LLM-based security analysis via Workers AI.
 *
 * Takes SKILL.md content + Tier 1 findings and uses Cloudflare Workers AI
 * (Llama 3.1 70B) to provide a semantic security assessment with a score,
 * verdict, and rationale.
 */
import type { SecurityFinding, Tier2Result } from './types.js';
/** Minimum interface for the Workers AI binding */
export interface AIBinding {
    run(model: string, input: {
        messages: Array<{
            role: string;
            content: string;
        }>;
    }): Promise<{
        response?: string;
    }>;
}
/**
 * Runs Tier 2 LLM-based security analysis.
 *
 * Retries up to MAX_RETRIES times with exponential backoff on transient
 * failures (network errors, timeouts, 5xx). Only returns FAIL after all
 * retries are exhausted.
 *
 * @param content - The SKILL.md file content
 * @param tier1Findings - Findings from the Tier 1 pattern scanner
 * @param ai - The Workers AI binding (env.AI)
 * @returns Tier2Result with score, verdict, rationale, and model
 */
export declare function runTier2Scan(content: string, tier1Findings: SecurityFinding[], ai: AIBinding): Promise<Tier2Result>;