/**
 * Nexus Prime — Pressure Detector
 *
 * Detects machine pressure on macOS and Linux.
 * Used by the Governor to decide when to degrade.
 */
import type { PressureLevel } from './types.js';
/**
 * Detect current machine memory pressure.
 *
 * macOS: reads from `memory_pressure` or `vm_stat`
 * Linux: reads from `/proc/meminfo`
 * Falls back to 'nominal' if detection fails.
 */
export declare function detectMemoryPressure(): PressureLevel;
/**
 * Count active Node.js child processes (best-effort).
 */
export declare function estimateProcessCount(): number;
