export declare const OBS_DIRNAME = ".hayagriva-llm";
export declare const RUNS_JSONL = "runs.jsonl";
export declare const LAST_RUN_JSON = "last-run.json";
export interface AiCallAnalytics {
    step: string;
    startedAt: string;
    finishedAt: string;
    durationMs: number;
    model: string;
    systemPromptChars: number;
    userContentChars: number;
    responseChars: number;
    usage?: {
        prompt_tokens: number;
        completion_tokens: number;
        total_tokens: number;
    };
}
export interface GenerateRunAnalytics {
    id: string;
    command: 'generate';
    cwd: string;
    startedAt: string;
    finishedAt?: string;
    durationMs?: number;
    ok?: boolean;
    error?: {
        message: string;
    };
    node: {
        version: string;
        platform: string;
        arch: string;
    };
    package: {
        name: string;
        version: string;
        description?: string;
        entryPath: string | null;
    };
    flags: {
        mode: 'static' | 'ai';
        includeSrc: boolean;
        verbose: boolean;
        apiKeyProvided: boolean;
        model: string;
        freeLlmRouter?: boolean;
    };
    outputs?: {
        jsonPath: string;
        txtPath: string;
        action: 'created' | 'updated';
    };
    ai?: {
        calls: AiCallAnalytics[];
        totals?: {
            prompt_tokens: number;
            completion_tokens: number;
            total_tokens: number;
        };
        inputChars?: number;
        batches?: {
            size: number;
            batchCount: number;
        };
    };
}
export declare function ensureObsDir(cwd: string): string;
export declare function newRunId(): string;
export declare function writeLastRun(cwd: string, run: GenerateRunAnalytics): void;
export declare function appendRunJsonl(cwd: string, run: GenerateRunAnalytics): void;
export declare function readRuns(cwd: string, max?: number): GenerateRunAnalytics[];
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