微信公众号文章生成

{
  "workflow_id": "wechat_article_full_generation",
  "input": {
    "img_num": {
      "field_name": "img_num",
      "default": 1,
      "description": "生成文章配图数量，默认1，范围0-4",
      "example": 2,
      "type": "integer",
      "required": false
    },
    "img_ratio": {
      "field_name": "img_ratio",
      "default": "1:1",
      "description": "配图画面比例，默认1:1",
      "example": "16:9",
      "type": "string",
      "required": false
    },
    "reference": {
      "field_name": "reference",
      "default": "",
      "description": "生成公众号文章的主题或原始文本，必填。如果用户要求原样保留，下游将直接使用此值不做修改",
      "example": "2026年人工智能行业发展趋势深度解读",
      "type": "string",
      "required": true
    },
    "key_point": {
      "field_name": "key_point",
      "default": "",
      "description": "用户的具体要求，选填。可能包含：主题色号（如#3a7bd5）、段落数（如5段）、SVG动画要求（如渐变动画）、封面图风格、是否修改reference（如'不对reference修改直接使用原来的'）等",
      "example": "主题色号#3a7bd5，生成5个段落，SVG做脉冲动画，不对reference修改直接使用，封面要科技感",
      "type": "string",
      "required": false
    }
  },
  "steps": [
    {
      "id": "step_1_intent_analyzer",
      "point_code": "",
      "result": [],
      "backend_type": "prompt_api",
      "api_code": "wechat_intent_analyzer",
      "status": "PENDING",
      "name": "深度解析公众号文章需求与约束",
      "action": "run",
      "params": {
        "img_num": "{{@input.img_num}}",
        "img_ratio": "{{@input.img_ratio}}",
        "reference": "{{@input.reference}}",
        "key_point": "{{@input.key_point}}"
      }
    },
    {
      "id": "step_2_content_generator",
      "point_code": "",
      "result": [],
      "backend_type": "prompt_api",
      "api_code": "wechat_content_generator",
      "status": "PENDING",
      "name": "延展生成文章分段正文与配图描述",
      "action": "run",
      "params": {
        "structured_constraints": "{{@step_1_intent_analyzer.result.data.structured_constraints}}",
        "reference": "{{@input.reference}}"
      },
      "depends_on": [
        "step_1_intent_analyzer"
      ]
    },
    {
      "id": "step_3_html_layout_generator",
      "point_code": "",
      "result": [],
      "backend_type": "prompt_api",
      "api_code": "wechat_html_layout_generator",
      "status": "PENDING",
      "name": "生成符合公众号规范的纯内联Style HTML片段",
      "action": "run",
      "params": {
        "article_title": "{{@step_2_content_generator.result.data.article_title}}",
        "img_num": "{{@input.img_num}}",
        "paragraphs": "{{@step_2_content_generator.result.data.paragraphs}}",
        "theme_color": "{{@step_1_intent_analyzer.result.data.structured_constraints.theme_color}}",
        "structured_constraints": "{{@step_1_intent_analyzer.result.data.structured_constraints}}"
      },
      "depends_on": [
        "step_2_content_generator",
        "step_1_intent_analyzer"
      ]
    },
    {
      "id": "step_4_svg_animation_generator",
      "point_code": "",
      "result": [],
      "backend_type": "prompt_api",
      "api_code": "wechat_svg_animation_generator",
      "status": "PENDING",
      "name": "生成轻量级SVG动画代码片段",
      "action": "run",
      "params": {
        "svg_count": 1,
        "svg_requirements": "{{@step_1_intent_analyzer.result.data.structured_constraints.svg_requirements}}",
        "theme_color": "{{@step_1_intent_analyzer.result.data.structured_constraints.theme_color}}"
      },
      "depends_on": [
        "step_1_intent_analyzer"
      ]
    },
    {
      "id": "step_5_image_prompt_enhance",
      "point_code": "",
      "result": [],
      "backend_type": "prompt_api",
      "api_code": "wechat_image_prompt_enhance",
      "status": "PENDING",
      "name": "优化文章配图英文生图提示词",
      "action": "run",
      "params": {
        "img_num": "{{@input.img_num}}",
        "unified_style": "digital art style, modern tech illustration",
        "theme_color": "{{@step_1_intent_analyzer.result.data.structured_constraints.theme_color}}",
        "image_descriptions": "{{@step_2_content_generator.result.data.paragraphs}}",
        "img_ratio": "{{@input.img_ratio}}"
      },
      "depends_on": [
        "step_2_content_generator",
        "step_1_intent_analyzer"
      ]
    },
    {
      "id": "step_6_cover_prompt_enhance",
      "point_code": "",
      "result": [],
      "backend_type": "prompt_api",
      "api_code": "wechat_cover_prompt_enhance",
      "status": "PENDING",
      "name": "优化头条和次条封面图英文生图提示词",
      "action": "run",
      "params": {
        "cover_requirements": "{{@step_1_intent_analyzer.result.data.structured_constraints.cover_requirements}}",
        "article_title": "{{@step_2_content_generator.result.data.article_title}}",
        "unified_style": "digital art style, modern tech illustration",
        "theme_color": "{{@step_1_intent_analyzer.result.data.structured_constraints.theme_color}}",
        "reference": "{{@input.reference}}"
      },
      "depends_on": [
        "step_2_content_generator",
        "step_1_intent_analyzer"
      ]
    },
    {
      "result": [],
      "iterator": "{{@step_5_image_prompt_enhance.result.data.enhanced_image_prompts}}",
      "status": "PENDING",
      "aggregates": [
        {
          "field": "data.result_url",
          "into": "article_image_urls"
        }
      ],
      "params": {
        "prompt": "{{@prompt_item.enhanced_prompt}}",
        "aspect_ratio": "{{@prompt_item.aspect_ratio}}"
      },
      "depends_on": [
        "step_5_image_prompt_enhance"
      ],
      "point_code": "1",
      "id": "step_7_generate_article_images",
      "api_code": "3373",
      "backend_type": "sys_api",
      "item_name": "prompt_item",
      "name": "批量生成文章配图",
      "action": "foreach"
    },
    {
      "result": [],
      "iterator": "{{@step_7_generate_article_images.result.data.aggregated.article_image_urls}}",
      "status": "PENDING",
      "aggregates": [
        {
          "field": "data.result_url",
          "into": "polledImageUrls"
        }
      ],
      "params": {
        "result_url": "{{@image_url_item}}"
      },
      "depends_on": [
        "step_7_generate_article_images"
      ],
      "polling": {
        "interval_seconds": 5,
        "timeout_seconds": 600,
        "success_condition": "{{@step_8_poll_article_images.result.data.task_status}} === 'SUCCEEDED'"
      },
      "point_code": "",
      "id": "step_8_poll_article_images",
      "api_code": "polling",
      "backend_type": "sys_api",
      "item_name": "image_url_item",
      "name": "轮询文章配图生成状态",
      "action": "foreach"
    },
    {
      "result": [],
      "iterator": "{{@step_8_poll_article_images.result.data.aggregated.polledImageUrls}}",
      "status": "PENDING",
      "aggregates": [
        {
          "field": "data.des_pic_url",
          "into": "resized_image_urls"
        }
      ],
      "params": {
        "width": "750",
        "src_img_url": "{{@polledImageUrl}}",
        "type": "size",
        "keepRate": "1"
      },
      "depends_on": [
        "step_8_poll_article_images"
      ],
      "point_code": "8",
      "id": "step_9_resize_article_images",
      "api_code": "1",
      "backend_type": "sys_api",
      "item_name": "polledImageUrl",
      "name": "批量缩放配图至750px宽",
      "action": "foreach"
    },
    {
      "id": "step_10_generate_headline_cover",
      "point_code": "1",
      "result": [],
      "backend_type": "sys_api",
      "api_code": "3373",
      "status": "PENDING",
      "name": "生成头条封面图(16:9)",
      "action": "run",
      "params": {
        "prompt": "{{@step_6_cover_prompt_enhance.result.data.headline_cover_prompt}}",
        "aspect_ratio": "16:9"
      },
      "depends_on": [
        "step_6_cover_prompt_enhance"
      ]
    },
    {
      "point_code": "",
      "id": "step_11_poll_headline_cover",
      "result": [],
      "backend_type": "sys_api",
      "api_code": "polling",
      "status": "PENDING",
      "name": "轮询头条封面图生成状态",
      "action": "run",
      "params": {
        "result_url": "{{@step_10_generate_headline_cover.result.data.result_url}}"
      },
      "depends_on": [
        "step_10_generate_headline_cover"
      ],
      "polling": {
        "interval_seconds": 5,
        "timeout_seconds": 600,
        "success_condition": "{{@step_11_poll_headline_cover.result.data.task_status}} === 'SUCCEEDED'"
      }
    },
    {
      "id": "step_12_generate_subline_cover",
      "point_code": "1",
      "result": [],
      "backend_type": "sys_api",
      "api_code": "3373",
      "status": "PENDING",
      "name": "生成次条封面图(1:1)",
      "action": "run",
      "params": {
        "prompt": "{{@step_6_cover_prompt_enhance.result.data.subline_cover_prompt}}",
        "aspect_ratio": "1:1"
      },
      "depends_on": [
        "step_6_cover_prompt_enhance"
      ]
    },
    {
      "point_code": "",
      "id": "step_13_poll_subline_cover",
      "result": [],
      "backend_type": "sys_api",
      "api_code": "polling",
      "status": "PENDING",
      "name": "轮询次条封面图生成状态",
      "action": "run",
      "params": {
        "result_url": "{{@step_12_generate_subline_cover.result.data.result_url}}"
      },
      "depends_on": [
        "step_12_generate_subline_cover"
      ],
      "polling": {
        "interval_seconds": 5,
        "timeout_seconds": 600,
        "success_condition": "{{@step_13_poll_subline_cover.result.data.task_status}} === 'SUCCEEDED'"
      }
    },
    {
      "id": "step_14_html_assembler",
      "point_code": "",
      "result": [],
      "backend_type": "prompt_api",
      "api_code": "wechat_html_assembler",
      "status": "PENDING",
      "name": "拼合最终完整HTML，回填SVG和图片URL",
      "action": "run",
      "params": {
        "html_fragments": "{{@step_3_html_layout_generator.result.data.html_fragments}}",
        "headline_cover_url": "{{@step_11_poll_headline_cover.result.data.result_url}}",
        "resized_image_urls": "{{@step_9_resize_article_images.result.data.aggregated.resized_image_urls}}",
        "subline_cover_url": "{{@step_13_poll_subline_cover.result.data.result_url}}",
        "theme_color": "{{@step_1_intent_analyzer.result.data.structured_constraints.theme_color}}",
        "svg_snippets": "{{@step_4_svg_animation_generator.result.data.svg_snippets}}"
      },
      "depends_on": [
        "step_3_html_layout_generator",
        "step_4_svg_animation_generator",
        "step_9_resize_article_images",
        "step_11_poll_headline_cover",
        "step_13_poll_subline_cover"
      ]
    }
  ],
  "output": {
    "subline_cover_url_1_1": {
      "field_name": "subline_cover_url_1_1",
      "description": "次条封面图URL(1:1比例，不缩放)",
      "value": "{{@step_14_html_assembler.result.data.cover_images.subline_cover_url_1_1}}",
      "type": "string"
    },
    "headline_cover_url_16_9": {
      "field_name": "headline_cover_url_16_9",
      "description": "头条封面图URL(16:9比例，不缩放)",
      "value": "{{@step_14_html_assembler.result.data.cover_images.headline_cover_url_16_9}}",
      "type": "string"
    },
    "final_html": {
      "field_name": "final_html",
      "description": "最终完整HTML片段，可直接粘贴到第三方编辑器",
      "value": "{{@step_14_html_assembler.result.data.final_html}}",
      "type": "string"
    },
    "usage_instructions": {
      "field_name": "usage_instructions",
      "description": "公众号使用提示，说明需借助第三方编辑器粘贴HTML及封面图上传方式",
      "value": "{{@step_14_html_assembler.result.data.usage_instructions}}",
      "type": "string"
    }
  }
}