import type { OperatorMethodOutput } from '../../types/generated/foundation-client-types.js';
import type { OpsEvent } from '../../../events/ops.js';
/** ops.memory.get output, the full governor snapshot. */
export type MemoryGovernorSnapshotResult = OperatorMethodOutput<'ops.memory.get'>;
/** The OPS_MEMORY_PRESSURE event payload (a tier change or a tripwire firing). */
export type MemoryPressurePayload = Extract<OpsEvent, {
    type: 'OPS_MEMORY_PRESSURE';
}>;
/** Human MB (the governor already reports MB as numbers; round to 1 decimal). */
export declare function formatMb(mb: number | null | undefined): string;
/** Human byte size for a cache footprint estimate. */
export declare function formatMemoryBytes(bytes: number | null | undefined): string;
/** A plain-language note for the current tier (the governor's posture at this tier). */
export declare function memoryTierNote(tier: MemoryGovernorSnapshotResult['tier']): string;
/**
 * The /health memory (doctor) rows, the honest account of the daemon defending
 * its footprint. Order: tier + posture, budget vs RSS, heap, tier thresholds,
 * per-cache footprints the governor can shrink, which deferrable jobs are
 * paused, and the leak-tripwire state.
 */
export declare function memoryStatusLines(snapshot: MemoryGovernorSnapshotResult): string[];
/**
 * The attention line OPS_MEMORY_PRESSURE produces: a one-liner naming the new
 * tier and the RSS/budget, plus a distinct escalation when the leak tripwire
 * fires (the daemon is about to exit for a clean supervisor restart). Returned
 * as a single string so the notice/attention surface can push it directly.
 */
export declare function memoryPressureLine(event: MemoryPressurePayload): string;
/** Severity for the notice feed: critical tier (or a tripwire) is critical; high is a warning. */
export declare function memoryPressureLevel(event: MemoryPressurePayload): 'info' | 'warning' | 'critical';
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