import type { HostProbeOptions, HostReadiness, HostRegistryCatalog, HostResolveOptions, HostRuntimeResolution, PythonRunner } from "./types.mjs";
export declare const RUNTIME_AUTO = "auto";
export declare class HostRegistryClientError extends Error {
    constructor(message: string);
}
export declare function createHostRegistryClient({ runPython }?: {
    readonly runPython?: PythonRunner;
}): {
    readonly catalog: () => Promise<HostRegistryCatalog>;
    readonly resolveHostRuntime: (options: HostResolveOptions) => Promise<HostRuntimeResolution>;
    readonly probeHost: (options: HostProbeOptions) => Promise<HostReadiness>;
};
export declare function normalizeHostRequest(value: unknown): string;
export declare function loadHostCatalog(): Promise<HostRegistryCatalog>;
export declare function resolveHostRuntime(options: HostResolveOptions): Promise<HostRuntimeResolution>;
export declare function probeHost(options: HostProbeOptions): Promise<HostReadiness>;
export declare function resolveRuntime({ requestedRuntime, command, env, capabilities, }?: HostResolveOptions): Promise<HostRuntimeResolution>;
export declare function checkRuntimeReadiness({ runtime, projectRoot, homeDir, hostRegistryClient, }: {
    readonly runtime?: string;
    readonly projectRoot: string;
    readonly homeDir?: string;
    readonly hostRegistryClient?: {
        readonly probeHost: (options: HostProbeOptions) => Promise<HostReadiness>;
    };
}): Promise<HostReadiness>;