爆款文章标题封面A/B对比生成

{
  "workflow_id": "article_title_cover_ab_comparison",
  "input": {
    "topic": {
      "field_name": "topic",
      "default": "",
      "description": "用户输入的任意文章主题，系统将基于此进行深度意图拆解和标题生成",
      "example": "2026 程序员如何摆脱职场精神内耗，减少无效加班焦虑",
      "required": true,
      "type": "string"
    },
    "cover_aspect_ratio": {
      "field_name": "cover_aspect_ratio",
      "default": "3:4",
      "description": "封面图的宽高比，可选值：1:1, 3:4, 4:3, 16:9, 9:16",
      "example": "3:4",
      "required": false,
      "type": "string"
    }
  },
  "steps": [
    {
      "id": "step_0_prompt_guardian",
      "point_code": "1",
      "api_code": "prompt_guardian",
      "backend_type": "sys_api",
      "status": "PENDING",
      "name": "合规校验优化",
      "action": "run",
      "params": []
    },
    {
      "id": "step_1_intent_title_analyzer",
      "point_code": "",
      "result": [],
      "api_code": "intent_title_analyzer",
      "backend_type": "prompt_api",
      "status": "PENDING",
      "name": "拆解传播意图与生成多风格标题",
      "action": "run",
      "params": {
        "topic": "{{@input.topic}}"
      }
    },
    {
      "result": [],
      "iterator": "{{@step_1_intent_title_analyzer.result.data.content_variants}}",
      "status": "PENDING",
      "aggregates": [
        {
          "field": "data.cover_prompt",
          "into": "cover_prompts"
        },
        {
          "field": "data.visual_concept",
          "into": "visual_concepts"
        }
      ],
      "params": {
        "title": "{{@variant.content}}",
        "intention_analysis": "{{@step_1_intent_title_analyzer.result.data.structured_analysis.semantic_structure.core_theme}}",
        "style_tag": "{{@variant.style}}"
      },
      "depends_on": [
        "step_1_intent_title_analyzer"
      ],
      "point_code": "",
      "id": "step_2_cover_prompt_designer",
      "api_code": "cover_prompt_designer",
      "backend_type": "prompt_api",
      "item_name": "variant",
      "name": "循环为每款标题定制专属封面排版提示词",
      "action": "foreach"
    },
    {
      "result": [],
      "iterator": "{{@step_2_cover_prompt_designer.result.data.aggregated.cover_prompts}}",
      "status": "PENDING",
      "aggregates": [
        {
          "field": "data.result_url",
          "into": "cover_image_urls"
        },
        {
          "field": "data.task_id",
          "into": "cover_task_ids"
        }
      ],
      "params": {
        "prompt": "{{@cover_prompt}}",
        "aspect_ratio": "{{@input.cover_aspect_ratio}}"
      },
      "depends_on": [
        "step_2_cover_prompt_designer"
      ],
      "point_code": "1",
      "id": "step_3_batch_cover_image_generation",
      "api_code": "3373",
      "backend_type": "sys_api",
      "item_name": "cover_prompt",
      "name": "循环批量生成封面图(提交生图任务)",
      "action": "foreach"
    },
    {
      "result": [],
      "iterator": "{{@step_3_batch_cover_image_generation.result.data.aggregated.cover_image_urls}}",
      "status": "PENDING",
      "aggregates": [
        {
          "field": "data.result_url",
          "into": "final_cover_image_urls"
        }
      ],
      "params": {
        "result_url": "{{@cover_url}}"
      },
      "depends_on": [
        "step_3_batch_cover_image_generation"
      ],
      "polling": {
        "interval_seconds": 5,
        "timeout_seconds": 1800,
        "success_condition": "{{@step_4_poll_cover_image_status.result.data.task_status}} === 'SUCCEEDED'"
      },
      "point_code": "",
      "id": "step_4_poll_cover_image_status",
      "backend_type": "sys_api",
      "api_code": "polling",
      "item_name": "cover_url",
      "name": "轮询批量封面图生成状态",
      "action": "foreach"
    },
    {
      "id": "step_5_preview_prompt_designer",
      "point_code": "",
      "result": [],
      "api_code": "preview_prompt_designer",
      "backend_type": "prompt_api",
      "status": "PENDING",
      "name": "生成A/B对比预览排版提示词",
      "action": "run",
      "params": {
        "merge_context": {
          "fusion_strategy": "structural_comparison_layout",
          "upstream_content": "{{@step_4_poll_cover_image_status.result.data.aggregated.final_cover_image_urls}}"
        },
        "title_cover_pairs": "{{@step_1_intent_title_analyzer.result.data.content_variants}}"
      },
      "depends_on": [
        "step_4_poll_cover_image_status"
      ]
    },
    {
      "id": "step_6_start_preview_image_task",
      "point_code": "1",
      "result": [],
      "api_code": "3373",
      "backend_type": "sys_api",
      "status": "PENDING",
      "name": "提交A/B对比预览大图生图任务",
      "action": "run",
      "params": {
        "prompt": "{{@step_5_preview_prompt_designer.result.data.preview_prompt}}"
      },
      "depends_on": [
        "step_5_preview_prompt_designer"
      ]
    },
    {
      "id": "step_7_poll_preview_image_status",
      "point_code": "",
      "result": [],
      "backend_type": "sys_api",
      "api_code": "polling",
      "status": "PENDING",
      "name": "轮询A/B对比预览图生成状态",
      "action": "run",
      "params": {
        "result_url": "{{@step_6_start_preview_image_task.result.data.result_url}}"
      },
      "depends_on": [
        "step_6_start_preview_image_task"
      ],
      "polling": {
        "interval_seconds": 5,
        "timeout_seconds": 1800,
        "success_condition": "{{@step_7_poll_preview_image_status.result.data.task_status}} === 'SUCCEEDED'"
      }
    }
  ],
  "output": {
    "layout_concept": {
      "field_name": "layout_concept",
      "description": "预览排版概念说明",
      "value": "{{@step_5_preview_prompt_designer.result.data.layout_concept}}",
      "type": "string"
    },
    "final_cover_image_urls": {
      "field_name": "final_cover_image_urls",
      "description": "各款标题对应的高清封面图URL数组",
      "value": "{{@step_4_poll_cover_image_status.result.data.aggregated.final_cover_image_urls}}",
      "type": "array"
    },
    "structured_analysis": {
      "field_name": "structured_analysis",
      "description": "意图分析结构化数据（含关键词、情感标签、语义结构）",
      "value": "{{@step_1_intent_title_analyzer.result.data.structured_analysis}}",
      "type": "object"
    },
    "content_variants": {
      "field_name": "content_variants",
      "description": "多风格差异化标题备选方案（含标题文案、风格标签、评分）",
      "value": "{{@step_1_intent_title_analyzer.result.data.content_variants}}",
      "type": "array"
    },
    "visual_concepts": {
      "field_name": "visual_concepts",
      "description": "各款标题封面对应的视觉概念说明",
      "value": "{{@step_2_cover_prompt_designer.result.data.aggregated.visual_concepts}}",
      "type": "array"
    },
    "preview_image_url": {
      "field_name": "preview_image_url",
      "description": "一体化A/B横向对比预览大图URL",
      "value": "{{@step_7_poll_preview_image_status.result.data.result_url}}",
      "type": "string"
    }
  }
}