/**
 * Survival monitor — translates USDC/SOL balances into a Depth tier and the
 * matching pulse interval. Called every tail-flick and every pulse-tick.
 */
import { Balances } from '../identity/balances.js';
import type { Depth } from '../types/index.js';
export declare function depthFor(balances: Balances): Depth;
export declare function pulseIntervalFor(depth: Depth): number;
export declare function modelFor(depth: Depth): string;
/**
 * Decide whether the leviathan should beach itself this turn.
 * The runtime is expected to call exit() if so.
 */
export declare function shouldBeach(balances: Balances): boolean;