export const BUILD_CEILING_WINDOW_MS: number;
export const BUILD_CEILING_HARD_MULTIPLIER: number;
export const BUILD_CEILING_DEFAULTS: Readonly<{ free: number; paid: number }>;
export const BUILD_CEILING_VARS: Readonly<{ free: string; paid: string }>;
export const BUILD_CEILING_STORAGE_KEY: string;
export function resolveBuildCeilingLimits(env: Record<string, unknown> | undefined | null): { free: number; paid: number };
export function buildCeilingLimitFor(env: Record<string, unknown> | undefined | null, modules?: string[]): number;
export function buildCeilingFor(env: Record<string, unknown> | undefined | null, modules: string[] | undefined, target: string): { limit: number; cap: number };
export function buildCeilingStep(input: { stamps?: unknown; now: number; cap: number }):
  { allowed: boolean; stamps: number[]; used: number; retryAtMs?: number };
export function buildCeilingRefusalText(input: { limit: number; cap?: number; retryAtMs?: number; target?: string }): string;
export function buildCeilingRefusalParams(input: { limit: number; cap?: number; retryAtMs?: number; target?: string }): { key: string; params: Record<string, string | number> };