/**
 * §3.6 LlmTask 渲染器 — 把 brain.run 返回的 pending_llm_tasks 渲染成 agent 可执行的文本指令
 *
 * 协议: BRAIN-SKILL-CONTRACT-v1 §3.6 LlmTask Protocol
 *
 * 关键分支:
 *   - kind === 'image_generation' → 引导 agent 调本地 image provider, 返回 output_images[]
 *   - kind === 'text' (或缺省) → 原有文本 LLM 任务路径
 *
 * 抽出此文件原因 (2026-04-25 工程债清理窗口):
 *   - mcp-stdio/server.ts brain_run handler 内嵌渲染逻辑没法单测
 *   - 抽成纯函数后契约一致性可机器验证 (render-pending-llm-tasks.test.ts)
 */
export type ImageGenParams = {
    prompt: string;
    style_refs?: string[];
    subject_ref?: string;
    aspect_ratio?: '1:1' | '4:3' | '3:4' | '16:9' | '9:16';
    n?: number;
    image_model_hint?: 'seedream' | 'minimax_image' | 'dalle' | 'midjourney' | string | null;
};
export type PendingLlmTask = {
    task_id: string;
    prompt: string;
    system?: string;
    schema?: object;
    max_tokens?: number;
    temperature?: number;
    visibility: string;
    kind?: 'text' | 'image_generation';
    image_params?: ImageGenParams;
    narration_pre_zh?: string;
    narration_pre_en?: string;
    narration_post_zh?: string;
    narration_post_en?: string;
    expected_seconds?: number;
};
export type PipelineProgress = {
    current_round: number;
    total_estimate: number;
    hard_cap: number;
};
/**
 * 渲染单个 image_generation task — 对应 §3.6 image_params 字段
 */
export declare function renderImageGenerationTask(task: PendingLlmTask): string[];
/**
 * 渲染单个 text task — 原有文本 LLM 任务路径
 */
export declare function renderTextTask(task: PendingLlmTask): string[];
/**
 * 渲染整个 pending_llm_tasks 块 — 含 progress + continuation_token + 多 task 列表
 *
 * 输出格式:
 *   [pipeline 进度: 1/3 轮, 上限 8]            (可选)
 *   需要你执行 N 个 LLM 任务,完成后用 continuation_token 续跑:
 *   continuation_token: <token>
 *
 *   --- task_id: T1 ---
 *   <text task 渲染 OR image_generation 渲染>
 *
 *   --- task_id: T2 ---
 *   ...
 */
export declare function renderPendingLlmTasks(tasks: PendingLlmTask[], contToken: string, progress?: PipelineProgress): string;
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