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ttstd-infinite-canvas/plugin-packages/agnes-image/docs/interface.md

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Agnes Image 接口字段

协议身份

  • 插件 ID:agnes-image。
  • Provider ID:agnes-image。
  • 能力:image。
  • 默认 Base URL:https://api.agnes-ai.cn。
  • 鉴权驱动:bearer。
  • 创建:POST /v1/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 "/v1/images/generations"
create.contentType "application/json"
create.body.model {"$ref":"request.model"}
create.body.prompt {"$ref":"request.prompt"}
create.body.size {"$omitEmpty":{"$if":{"condition":{"$eq":[{"$len":{"$split":[{"$trim":{"$ref":"request.aspectRatio"}},"x"]}},2]},"then":{"$trim":{"$ref":"request.aspectRatio"}},"else":{"$switch":{"cases":[{"when":{"$in":[{"$lower":{"$trim":{"$ref":"request.quality"}}},["1k","low","standard"]]},"then":"1K"},{"when":{"$in":[{"$lower":{"$trim":{"$ref":"request.quality"}}},["2k","medium","hd","high"]]},"then":"2K"},{"when":{"$in":[{"$lower":{"$trim":{"$ref":"request.quality"}}},["3k"]]},"then":"3K"},{"when":{"$in":[{"$lower":{"$trim":{"$ref":"request.quality"}}},["4k"]]},"then":"4K"}],"default":"1K"}}}}}
create.body.ratio {"$omitEmpty":{"$if":{"condition":{"$in":[{"$trim":{"$ref":"request.aspectRatio"}},["1:1","3:4","4:3","16:9","9:16","2:3","3:2","21:9"]]},"then":{"$trim":{"$ref":"request.aspectRatio"}},"else":null}}}
create.body.extra_body {"$omitEmpty":{"image":{"$omitEmpty":{"$map":{"from":{"$sortByOrder":{"$ref":"request.images"}},"as":"media","in":{"$coalesce":[{"$ref":"media.dataUrl"},{"$ref":"media.url"}]}}}},"response_format":{"$coalesce":[{"$ref":"request.providerOptions.agnes-image.response_format"},"url"]}}}

Provider 扩展键

  • providerOptions.agnes-image.response_format

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 {"$map":{"from":{"$ref":"response.data"},"as":"item","in":{"url":{"$omitEmpty":{"$ref":"item.url"}},"dataUrl":{"$if":{"condition":{"$ref":"item.b64_json"},"then":{"$concat":["data:image/png;base64,",{"$ref":"item.b64_json"}]},"else":null}}}}}
response.errorPaths[0] "error.code"
response.errorPaths[1] "code"
response.messagePaths[0] "error.message"
response.messagePaths[1] "message"
response.messagePaths[2] "msg"

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

Agnes 官方图像端点,同步返回。文生图与图生图共用 /v1/images/generations:不传 image 为文生图,传 image 为图生图或多图合成。size 必填,取 1K/2K/3K/4K 档位或 WxH 精确尺寸;画面比例走独立的 ratio 字段。参考图放在 extra_body.image,支持公共 HTTPS URL 或 Data URI Base64。顶层 response_format 是官方明确列出的错误写法,输出格式只能声明在 extra_body.response_format。该端点不接受 n,单次请求固定返回一张图片,需要多张时由上层拆分为多个任务。

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": "agnes-image",
  "name": "Agnes Image",
  "version": "2.0.0",
  "author": "Agnes AI / 影策",
  "description": "Agnes Image 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": "agnes-image",
        "label": "Agnes Image",
        "capabilities": [
          "image"
        ],
        "scopes": [
          "admin.system-channel",
          "user.custom-channel",
          "canvas",
          "creation",
          "agent"
        ],
        "baseUrl": "https://api.agnes-ai.cn",
        "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。"
          }
        ],
        "validations": [
          {
            "assert": {
              "$or": [
                {
                  "$in": [
                    {
                      "$trim": {
                        "$ref": "request.aspectRatio"
                      }
                    },
                    [
                      "",
                      "auto",
                      "1:1",
                      "3:4",
                      "4:3",
                      "16:9",
                      "9:16",
                      "2:3",
                      "3:2",
                      "21:9"
                    ]
                  ]
                },
                {
                  "$eq": [
                    {
                      "$len": {
                        "$split": [
                          {
                            "$trim": {
                              "$ref": "request.aspectRatio"
                            }
                          },
                          "x"
                        ]
                      }
                    },
                    2
                  ]
                }
              ]
            },
            "message": "Agnes 图像只支持 1:1、3:4、4:3、16:9、9:16、2:3、3:2、21:9 比例或 WxH 像素尺寸"
          }
        ],
        "create": {
          "method": "POST",
          "path": "/v1/images/generations",
          "contentType": "application/json",
          "body": {
            "model": {
              "$ref": "request.model"
            },
            "prompt": {
              "$ref": "request.prompt"
            },
            "size": {
              "$omitEmpty": {
                "$if": {
                  "condition": {
                    "$eq": [
                      {
                        "$len": {
                          "$split": [
                            {
                              "$trim": {
                                "$ref": "request.aspectRatio"
                              }
                            },
                            "x"
                          ]
                        }
                      },
                      2
                    ]
                  },
                  "then": {
                    "$trim": {
                      "$ref": "request.aspectRatio"
                    }
                  },
                  "else": {
                    "$switch": {
                      "cases": [
                        {
                          "when": {
                            "$in": [
                              {
                                "$lower": {
                                  "$trim": {
                                    "$ref": "request.quality"
                                  }
                                }
                              },
                              [
                                "1k",
                                "low",
                                "standard"
                              ]
                            ]
                          },
                          "then": "1K"
                        },
                        {
                          "when": {
                            "$in": [
                              {
                                "$lower": {
                                  "$trim": {
                                    "$ref": "request.quality"
                                  }
                                }
                              },
                              [
                                "2k",
                                "medium",
                                "hd",
                                "high"
                              ]
                            ]
                          },
                          "then": "2K"
                        },
                        {
                          "when": {
                            "$in": [
                              {
                                "$lower": {
                                  "$trim": {
                                    "$ref": "request.quality"
                                  }
                                }
                              },
                              [
                                "3k"
                              ]
                            ]
                          },
                          "then": "3K"
                        },
                        {
                          "when": {
                            "$in": [
                              {
                                "$lower": {
                                  "$trim": {
                                    "$ref": "request.quality"
                                  }
                                }
                              },
                              [
                                "4k"
                              ]
                            ]
                          },
                          "then": "4K"
                        }
                      ],
                      "default": "1K"
                    }
                  }
                }
              }
            },
            "ratio": {
              "$omitEmpty": {
                "$if": {
                  "condition": {
                    "$in": [
                      {
                        "$trim": {
                          "$ref": "request.aspectRatio"
                        }
                      },
                      [
                        "1:1",
                        "3:4",
                        "4:3",
                        "16:9",
                        "9:16",
                        "2:3",
                        "3:2",
                        "21:9"
                      ]
                    ]
                  },
                  "then": {
                    "$trim": {
                      "$ref": "request.aspectRatio"
                    }
                  },
                  "else": null
                }
              }
            },
            "extra_body": {
              "$omitEmpty": {
                "image": {
                  "$omitEmpty": {
                    "$map": {
                      "from": {
                        "$sortByOrder": {
                          "$ref": "request.images"
                        }
                      },
                      "as": "media",
                      "in": {
                        "$coalesce": [
                          {
                            "$ref": "media.dataUrl"
                          },
                          {
                            "$ref": "media.url"
                          }
                        ]
                      }
                    }
                  }
                },
                "response_format": {
                  "$coalesce": [
                    {
                      "$ref": "request.providerOptions.agnes-image.response_format"
                    },
                    "url"
                  ]
                }
              }
            }
          },
          "originPath": true
        },
        "response": {
          "status": "succeeded",
          "images": {
            "$map": {
              "from": {
                "$ref": "response.data"
              },
              "as": "item",
              "in": {
                "url": {
                  "$omitEmpty": {
                    "$ref": "item.url"
                  }
                },
                "dataUrl": {
                  "$if": {
                    "condition": {
                      "$ref": "item.b64_json"
                    },
                    "then": {
                      "$concat": [
                        "data:image/png;base64,",
                        {
                          "$ref": "item.b64_json"
                        }
                      ]
                    },
                    "else": null
                  }
                }
              }
            }
          },
          "errorPaths": [
            "error.code",
            "code"
          ],
          "messagePaths": [
            "error.message",
            "message",
            "msg"
          ]
        }
      }
    ]
  }
}