export interface Telemetry {
    tokens_in?: number;
    tokens_out?: number;
    /** Live context-window size from the last turn_end (pi's getContextUsage). */
    context_tokens?: number;
    model?: string;
    updated_at?: string;
}
/** Read a node's telemetry record. Missing/corrupt → {}. Never throws. */
export declare function readTelemetry(nodeId: string): Telemetry;
/** The node's current context-window size in tokens, or null when unknown.
 *  Prefers the live `context_tokens` gauge; falls back to cumulative
 *  `tokens_in` (the dashboard's coarse proxy) only when no live gauge exists. */
export declare function readContextTokens(nodeId: string): number | null;