import type { ExtensionAPI } from '@earendil-works/pi-coding-agent';
export interface CodexUsageSnapshot {
    planType?: string;
    primaryUsedPercent: number;
    primaryResetAtSeconds?: number;
    secondaryUsedPercent?: number;
    secondaryResetAtSeconds?: number;
    resetCredits?: number;
}
type CodexUsageTone = 'dim' | 'warning' | 'error';
export declare function is_codex_provider(provider: string | undefined): boolean;
export declare function parse_codex_usage_response(payload: unknown): CodexUsageSnapshot | null;
export declare function format_codex_usage_status(snapshot: CodexUsageSnapshot, nowMs?: number): string;
export declare function get_codex_usage_tone(snapshot: CodexUsageSnapshot): CodexUsageTone;
export declare function read_codex_access_token(authPath?: string): Promise<string | null>;
export default function codex_usage(pi: ExtensionAPI): Promise<void>;
export {};