import type { RiskTier, ToolClassification, ThresholdPolicyDecision } from './types.js';
export declare function clampTtlForRiskTier(requestedTtlSec: number, risk: RiskTier): number;
export declare function requiredCaveatsForRiskTier(risk: RiskTier): string[];
export declare const RISK_TIER_REQUIREMENTS: Record<RiskTier, ThresholdPolicyDecision>;
/**
 * Map a tool classification to the spec-207 threshold-policy decision.
 *
 * Defaults to `low` (T1 Read) when `@sa-risk-tier` is unset, matching
 * the existing `evaluatePolicy` permissive default for unclassified
 * tools. Callers should run `lintClassification` to catch unset risk
 * tiers as a separate concern; this function intentionally doesn't
 * fail closed on missing classification (that's `evaluatePolicy`'s
 * job).
 */
export declare function evaluateThresholdPolicy(classification: ToolClassification): ThresholdPolicyDecision;
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