/**
 * Schema validators for canonical contracts.
 * Ensures that rule definitions and findings conform to contract invariants.
 */
import type { VersionMetadata, CompatibilityConstraint, ValidationResult } from "./types";
/**
 * Validates a version metadata object.
 */
export declare function validateVersion(version: unknown): ValidationResult;
/**
 * Compares two versions: returns -1 if v1 < v2, 0 if equal, 1 if v1 > v2.
 */
export declare function compareVersions(v1: VersionMetadata, v2: VersionMetadata): number;
/**
 * Checks if a version satisfies a compatibility constraint.
 */
export declare function satisfiesConstraint(version: VersionMetadata, constraint: CompatibilityConstraint): boolean;
/**
 * Validates a RuleDefinition against contract invariants.
 */
export declare function validateRuleDefinition(rule: unknown): ValidationResult;
/**
 * Validates a FindingSchema against contract invariants.
 */
export declare function validateFinding(finding: unknown): ValidationResult;