import type { HarnessDescriptor } from "../knowledge/descriptor.js";
/** The latest published version of an npm package, or null when the
 * registry cannot be reached. One owner; the version-check script imports
 * it (RFC-02 change 12). */
export declare const npmLatest: (pkg: string) => Promise<string | null>;
/** The locally installed CLI's version from `<bin> --version`, or null
 * when the binary is absent or reports none. */
export declare const installedVersion: (bin: string, options?: {
    readonly cwd?: string;
    readonly env?: Readonly<Record<string, string | undefined>>;
    readonly timeoutMs?: number;
}) => Promise<string | null>;
/** Where a descriptor's latest version is found, per its versionSource:
 * the npm registry, or the installed binary. */
export declare const resolveLatest: (h: HarnessDescriptor) => Promise<{
    latest: string | null;
    source: string;
}>;
export declare const check: (rawArgs: string[]) => Promise<void>;
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