/** True only for a plain `X.Y.Z` release version (no prerelease/build suffix). */
export declare function isStrictSemver(v: string): boolean;
/**
 * Compare two semver strings by their `X.Y.Z` core. Returns negative if a < b,
 * 0 if equal, positive if a > b. NaN-proof: any non-numeric part reads as 0, so
 * a prerelease like `0.26.0-beta.1` compares as its core `0.26.0` rather than
 * producing NaN. Strict `X.Y.Z`-only enforcement is the caller's job.
 */
export declare function compareSemver(a: string, b: string): number;
/** Read the package version from jinn-cli's package.json. */
export declare function getPackageVersion(): string;
/** Read the instance version from config.yaml. Returns "0.0.0" if not set. */
export declare function getInstanceVersion(): string;
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