/** Descriptive data supplied by the authorizing business, never an identity or instruction. */
export type AgentSubjectDisplay = {
    name: string;
};
export type AgentSubjectDisplayStatus = 'provided' | 'missing' | 'unsupported' | 'unavailable';
export type AgentSubjectDisplayView = {
    subjectDisplay: AgentSubjectDisplay | null;
    subjectDisplayStatus: AgentSubjectDisplayStatus;
};
export type AgentSubjectDisplayBinding = {
    connectionKey: string;
    baseUrl: string;
    clientAppId: string;
    workspace: string;
    sessionId: string;
};
/** An optional display field cannot turn successful authorization into a failed login. */
export declare function parseAgentSubjectDisplay(record: Record<string, unknown>): AgentSubjectDisplayView;
type CachedDisplay = AgentSubjectDisplayView & {
    subjectDisplayCachedAt: string;
};
/** Public display data is separate from both credentials and the backwards-compatible registry. */
export declare class AgentSubjectDisplayCache {
    private readonly platform;
    readonly directory: string;
    constructor(registryPath: string, platform?: NodeJS.Platform);
    private path;
    load(binding: AgentSubjectDisplayBinding): Promise<CachedDisplay | undefined>;
    save(binding: AgentSubjectDisplayBinding, display: AgentSubjectDisplayView, now: number): Promise<void>;
}
export {};
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