import type { ExtensionAPI, ExtensionCommandContext } from "@earendil-works/pi-coding-agent";
import type { CodexUsageSnapshot } from "./payload.ts";
export declare function startUsageAnalysis(pi: ExtensionAPI, ctx: ExtensionCommandContext): Promise<void>;
export declare function captureSpendReport(snapshot: CodexUsageSnapshot, options: {
    sessionDir: string;
    signal?: AbortSignal | undefined;
    onProgress?: (lines: string[]) => void;
}): Promise<string[]>;
export declare function readSpendReport(key: string): Promise<string[]>;