import type { AnyDefinedTool } from "../agent/types.js";
export interface ExternalToolInstallation {
    installed: ReadonlySet<AnyDefinedTool>;
    shadowed: ReadonlyMap<string, AnyDefinedTool>;
}
export declare function replaceExternalTools(currentTools: readonly AnyDefinedTool[], externalTools: readonly AnyDefinedTool[], previous: ExternalToolInstallation): {
    installation: ExternalToolInstallation;
    tools: readonly AnyDefinedTool[];
};