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VicoHu 1e228a04dc feat(plugins): 方舟 Agent Plan - 新增图片与视频协议插件
独立 /api/plan/v3 Seedream、Seedance 插件,并同步宿主能力默认值与渠道识别,避免与官方 /api/v3 凭证混用。

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-09-17 17:55:12 +08:00

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Volcengine Ark Seedream Images 接口字段

协议身份

  • 插件 ID:volcengine-ark-seedream。
  • Provider ID:volcengine-ark-image。
  • 能力:image。
  • 默认 Base URL:https://ark.cn-beijing.volces.com。
  • 鉴权驱动:bearer。
  • 创建:POST /api/v3/images/generations。
  • 生命周期:同步响应。

配置字段

字段 类型 必填 含义
apiKey secret 是 API Key

统一字段映射

统一字段 类型 必填 上游映射 说明
model string 是 model 图片模型 ID。
prompt string 是 prompt 图片提示词。
images media[] 否 provider image/reference fields 参考图或编辑源图,role 由业务层确定。
imageCount integer 否 n/sample_count 输出数量。
aspectRatio string 否 size/aspect_ratio 比例或尺寸,语义按协议说明。
resolution string 否 resolution/imageSize 分辨率档位。
quality string 否 quality 质量档位。
providerOptions object 否 provider-specific fields 插件命名空间内的厂商扩展字段。

上游请求模板逐字段清单

下表由插件请求模板生成,覆盖 body、query、headers 和 multipart 文件声明中的每个字段。

上游位置 值或转换表达式
create.method "POST"
create.path "/api/v3/images/generations"
create.contentType "application/json"
create.body.model {"$ref":"request.model"}
create.body.prompt {"$ref":"request.prompt"}
create.body.size {"$omitEmpty":{"$switch":{"cases":[{"when":{"$eq":[{"$ref":"request.aspectRatio"},"auto"]},"then":"2k"},{"when":{"$eq":[{"$ref":"request.aspectRatio"},"1:1"]},"then":"2048x2048"},{"when":{"$eq":[{"$ref":"request.aspectRatio"},"4:3"]},"then":"2304x1728"},{"when":{"$eq":[{"$ref":"request.aspectRatio"},"3:4"]},"then":"1728x2304"},{"when":{"$eq":[{"$ref":"request.aspectRatio"},"16:9"]},"then":"2560x1440"},{"when":{"$eq":[{"$ref":"request.aspectRatio"},"9:16"]},"then":"1440x2560"},{"when":{"$eq":[{"$ref":"request.aspectRatio"},"3:2"]},"then":"2496x1664"},{"when":{"$eq":[{"$ref":"request.aspectRatio"},"2:3"]},"then":"1664x2496"},{"when":{"$eq":[{"$ref":"request.aspectRatio"},"21:9"]},"then":"3024x1296"}],"default":{"$ref":"request.aspectRatio"}}}}
create.body.image {"$omitEmpty":{"$if":{"condition":{"$eq":[{"$len":{"$ref":"request.images"}},1]},"then":{"$first":{"$map":{"from":{"$ref":"request.images"},"as":"media","in":{"$ref":"media.value"}}}},"else":{"$if":{"condition":{"$gt":[{"$len":{"$ref":"request.images"}},1]},"then":{"$map":{"from":{"$ref":"request.images"},"as":"media","in":{"$ref":"media.value"}}},"else":null}}}}}
create.body.sequential_image_generation {"$omitEmpty":{"$ref":"request.providerOptions.volcengine-ark-image.sequential_image_generation"}}
create.body.sequential_image_generation_options {"$omitEmpty":{"$ref":"request.providerOptions.volcengine-ark-image.sequential_image_generation_options"}}
create.body.watermark {"$coalesce":[{"$ref":"request.providerOptions.volcengine-ark-image.watermark"},{"$ref":"request.watermark"},false]}
create.body.seed {"$omitEmpty":{"$ref":"request.providerOptions.volcengine-ark-image.seed"}}
create.body.response_format {"$coalesce":[{"$ref":"request.providerOptions.volcengine-ark-image.response_format"},"b64_json"]}

Provider 扩展键

  • providerOptions.volcengine-ark-image.response_format
  • providerOptions.volcengine-ark-image.seed
  • providerOptions.volcengine-ark-image.sequential_image_generation
  • providerOptions.volcengine-ark-image.sequential_image_generation_options
  • providerOptions.volcengine-ark-image.watermark

动态模型或工作流允许使用文档声明的完整 parameters/input/extra_body 对象;该对象是协议本身的开放 schema,不会被宿主裁剪。

响应映射逐字段清单

映射位置 上游路径或转换表达式
response.status "succeeded"
response.images {"$ref":"response.data"}
response.usage {"$ref":"response.usage"}
response.errorPaths[0] "error.code"
response.messagePaths[0] "error.message"

响应与错误

插件把上游 task/status/text/media/usage 映射为统一结果。临时媒体 URL 标记为 ephemeral,由宿主立即下载持久化。HTTP 错误、业务 code 和 error object 保持失败语义,不包装成成功。

兼容边界

官方 Ark 推理接入:Base URL 使用 /api/v3,API Key 来自方舟推理接入控制台,不可与 Agent Plan 专属 Key 混用。

Manifest 完整接口定义

以下 JSON 与插件包内实际 manifest.json 逐字段一致,覆盖插件身份、权限、配置、鉴权、参数、校验、创建、Agent、查询、取消、结果下载、响应和 Agent 响应映射。documentation 字段的值就是当前完整文档;为避免文档在自身内部无限递归,JSON 中仅用等义占位文本表示正文。

{
  "apiVersion": "yingce.plugin/v2",
  "id": "volcengine-ark-seedream",
  "name": "Volcengine Ark Seedream Images",
  "version": "2.0.0",
  "author": "Volcengine / 影策",
  "description": "Volcengine Ark Seedream Images 独立请求协议插件。",
  "documentation": "<当前插件的完整 documentation,由 README.md 与 docs/interface.md 拼接而成;为避免 JSON 递归,此处不重复展开正文。>",
  "permissions": [
    "generation.run",
    "media.read"
  ],
  "configuration": {
    "fields": [
      {
        "name": "apiKey",
        "type": "secret",
        "label": "API Key",
        "required": true
      }
    ]
  },
  "contributes": {
    "providers": [
      {
        "id": "volcengine-ark-image",
        "label": "Volcengine Ark Seedream Images",
        "capabilities": [
          "image"
        ],
        "scopes": [
          "admin.system-channel",
          "user.custom-channel",
          "canvas",
          "creation",
          "agent"
        ],
        "baseUrl": "https://ark.cn-beijing.volces.com",
        "requiresPublicMediaUrls": false,
        "auth": {
          "type": "bearer",
          "field": "apiKey"
        },
        "parameters": [
          {
            "name": "model",
            "type": "string",
            "required": true,
            "mapping": "model",
            "description": "图片模型 ID。"
          },
          {
            "name": "prompt",
            "type": "string",
            "required": true,
            "mapping": "prompt",
            "description": "图片提示词。"
          },
          {
            "name": "images",
            "type": "media[]",
            "required": false,
            "mapping": "provider image/reference fields",
            "description": "参考图或编辑源图,role 由业务层确定。"
          },
          {
            "name": "imageCount",
            "type": "integer",
            "required": false,
            "mapping": "n/sample_count",
            "description": "输出数量。"
          },
          {
            "name": "aspectRatio",
            "type": "string",
            "required": false,
            "mapping": "size/aspect_ratio",
            "description": "比例或尺寸,语义按协议说明。"
          },
          {
            "name": "resolution",
            "type": "string",
            "required": false,
            "mapping": "resolution/imageSize",
            "description": "分辨率档位。"
          },
          {
            "name": "quality",
            "type": "string",
            "required": false,
            "mapping": "quality",
            "description": "质量档位。"
          },
          {
            "name": "providerOptions",
            "type": "object",
            "required": false,
            "mapping": "provider-specific fields",
            "description": "插件命名空间内的厂商扩展字段。"
          }
        ],
        "create": {
          "method": "POST",
          "path": "/api/v3/images/generations",
          "contentType": "application/json",
          "body": {
            "model": {
              "$ref": "request.model"
            },
            "prompt": {
              "$ref": "request.prompt"
            },
            "size": {
              "$omitEmpty": {
                "$switch": {
                  "cases": [
                    {
                      "when": {
                        "$eq": [
                          {
                            "$ref": "request.aspectRatio"
                          },
                          "auto"
                        ]
                      },
                      "then": "2k"
                    },
                    {
                      "when": {
                        "$eq": [
                          {
                            "$ref": "request.aspectRatio"
                          },
                          "1:1"
                        ]
                      },
                      "then": "2048x2048"
                    },
                    {
                      "when": {
                        "$eq": [
                          {
                            "$ref": "request.aspectRatio"
                          },
                          "4:3"
                        ]
                      },
                      "then": "2304x1728"
                    },
                    {
                      "when": {
                        "$eq": [
                          {
                            "$ref": "request.aspectRatio"
                          },
                          "3:4"
                        ]
                      },
                      "then": "1728x2304"
                    },
                    {
                      "when": {
                        "$eq": [
                          {
                            "$ref": "request.aspectRatio"
                          },
                          "16:9"
                        ]
                      },
                      "then": "2560x1440"
                    },
                    {
                      "when": {
                        "$eq": [
                          {
                            "$ref": "request.aspectRatio"
                          },
                          "9:16"
                        ]
                      },
                      "then": "1440x2560"
                    },
                    {
                      "when": {
                        "$eq": [
                          {
                            "$ref": "request.aspectRatio"
                          },
                          "3:2"
                        ]
                      },
                      "then": "2496x1664"
                    },
                    {
                      "when": {
                        "$eq": [
                          {
                            "$ref": "request.aspectRatio"
                          },
                          "2:3"
                        ]
                      },
                      "then": "1664x2496"
                    },
                    {
                      "when": {
                        "$eq": [
                          {
                            "$ref": "request.aspectRatio"
                          },
                          "21:9"
                        ]
                      },
                      "then": "3024x1296"
                    }
                  ],
                  "default": {
                    "$ref": "request.aspectRatio"
                  }
                }
              }
            },
            "image": {
              "$omitEmpty": {
                "$if": {
                  "condition": {
                    "$eq": [
                      {
                        "$len": {
                          "$ref": "request.images"
                        }
                      },
                      1
                    ]
                  },
                  "then": {
                    "$first": {
                      "$map": {
                        "from": {
                          "$ref": "request.images"
                        },
                        "as": "media",
                        "in": {
                          "$ref": "media.value"
                        }
                      }
                    }
                  },
                  "else": {
                    "$if": {
                      "condition": {
                        "$gt": [
                          {
                            "$len": {
                              "$ref": "request.images"
                            }
                          },
                          1
                        ]
                      },
                      "then": {
                        "$map": {
                          "from": {
                            "$ref": "request.images"
                          },
                          "as": "media",
                          "in": {
                            "$ref": "media.value"
                          }
                        }
                      },
                      "else": null
                    }
                  }
                }
              }
            },
            "sequential_image_generation": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.volcengine-ark-image.sequential_image_generation"
              }
            },
            "sequential_image_generation_options": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.volcengine-ark-image.sequential_image_generation_options"
              }
            },
            "watermark": {
              "$coalesce": [
                {
                  "$ref": "request.providerOptions.volcengine-ark-image.watermark"
                },
                {
                  "$ref": "request.watermark"
                },
                false
              ]
            },
            "seed": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.volcengine-ark-image.seed"
              }
            },
            "response_format": {
              "$coalesce": [
                {
                  "$ref": "request.providerOptions.volcengine-ark-image.response_format"
                },
                "b64_json"
              ]
            }
          }
        },
        "response": {
          "status": "succeeded",
          "images": {
            "$ref": "response.data"
          },
          "usage": {
            "$ref": "response.usage"
          },
          "errorPaths": [
            "error.code"
          ],
          "messagePaths": [
            "error.message"
          ]
        }
      }
    ]
  }
}