export type RuntimeComponent = "server" | "device" | "postgres" | "embeddings";
export interface ComponentDescriptor {
    name: string;
    version: string;
    entries: Record<string, string>;
    verify?: string;
}
export interface ComponentInstallOptions {
    cacheRoot?: string;
    offline?: boolean;
    signal?: AbortSignal;
    fetchImpl?: typeof fetch;
    /** Artifact transport seam for local release verification. */
    fetchArtifact?: (component: ComponentDescriptor, directory: string) => Promise<void>;
    installDependencies?: (directory: string, signal?: AbortSignal) => Promise<void>;
}
export declare function selectedRuntimeComponents(surface: "server" | "device", env: Record<string, string | undefined>, needsEmbeddings?: boolean): RuntimeComponent[];
export declare function runtimeCacheRoot(): string;
export declare function runtimePlatformKey(): string;
export declare function ensureComponent(component: ComponentDescriptor, options?: ComponentInstallOptions): Promise<string>;
export declare function prepareRuntime(surface: "server" | "device", env: Record<string, string | undefined>, options?: ComponentInstallOptions & {
    localEmbeddings?: boolean;
}): Promise<{
    directory: string;
    env: Record<string, string>;
    entries: Record<string, string>;
}>;
type DeviceCommands = {
    daemon: typeof import("../commands/daemon.js");
    automation: typeof import("../commands/automation.js");
    connector: typeof import("../commands/connector.js");
};
export declare function loadDeviceCommand<K extends keyof DeviceCommands>(command: K): Promise<DeviceCommands[K]>;
export declare function preinstallRuntime(keys: string[], offline?: boolean): Promise<void>;
export {};
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