# Anthropic Messages 接口字段

## 协议身份

- 插件 ID：`anthropic-messages`。
- Provider ID：`claude-api`。
- 能力：`text`。
- 默认 Base URL：`https://api.anthropic.com`。
- 鉴权驱动：`anthropic`。
- 创建：`POST /v1/messages`。
- Agent：`POST /v1/messages`。
- 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` | 上游模型 ID。 |
| `messages` | message[] | 是 | `provider message container` | 包含历史消息和当前用户输入。 |
| `instructions` | string | 否 | `system/instructions` | 系统指令。 |
| `temperature` | number | 否 | `temperature` | 采样温度。 |
| `top_p` | number | 否 | `top_p` | 核采样参数。 |
| `max_tokens` | integer | 否 | `max_tokens/max_output_tokens` | 最大输出 token。 |
| `tools` | array | 否 | `tools/toolConfig` | 工具定义。 |
| `tool_choice` | object|string | 否 | `tool_choice` | 工具选择策略。 |
| `response_format` | object | 否 | `response_format/text` | 结构化输出配置。 |
| `stream` | boolean | 否 | `stream` | 流式开关；后台任务当前以最终响应归一。 |

## 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/messages"` |
| `create.contentType` | `"application/json"` |
| `create.body.model` | `{"$ref":"request.model"}` |
| `create.body.max_tokens` | `{"$coalesce":[{"$ref":"request.extra.max_tokens"},{"$ref":"request.providerOptions.claude-api.max_tokens"},4096]}` |
| `create.body.system` | `{"$omitEmpty":{"$coalesce":[{"$ref":"request.instructions"},{"$ref":"request.providerOptions.claude-api.system"}]}}` |
| `create.body.messages` | `{"$filter":{"from":{"$ref":"request.messages"},"as":"message","where":{"$ne":[{"$ref":"message.role"},"system"]}}}` |
| `create.body.temperature` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.temperature"}}` |
| `create.body.top_p` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.top_p"}}` |
| `create.body.top_k` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.top_k"}}` |
| `create.body.stop_sequences` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.stop_sequences"}}` |
| `create.body.tools` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.tools"}}` |
| `create.body.tool_choice` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.tool_choice"}}` |
| `create.body.metadata` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.metadata"}}` |
| `create.body.stream` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.stream"}}` |
| `create.body.thinking` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.thinking"}}` |
| `create.body.service_tier` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.service_tier"}}` |
| `create.headers.anthropic-version` | `{"$coalesce":[{"$ref":"request.providerOptions.claude-api.anthropic-version"},"2023-06-01"]}` |
| `create.headers.anthropic-beta` | `{"$omitEmpty":{"$ref":"request.providerOptions.claude-api.anthropic-beta"}}` |
| `agent.method` | `"POST"` |
| `agent.path` | `"/v1/messages"` |
| `agent.contentType` | `"application/json"` |
| `agent.body` | `{"$merge":[{"$ref":"request.extra.agent.claude"},{"model":{"$ref":"request.model"}}]}` |
| `agent.headers.anthropic-version` | `"2023-06-01"` |

## Provider 扩展键

- `providerOptions.claude-api.anthropic-beta`
- `providerOptions.claude-api.anthropic-version`
- `providerOptions.claude-api.max_tokens`
- `providerOptions.claude-api.metadata`
- `providerOptions.claude-api.service_tier`
- `providerOptions.claude-api.stop_sequences`
- `providerOptions.claude-api.stream`
- `providerOptions.claude-api.system`
- `providerOptions.claude-api.temperature`
- `providerOptions.claude-api.thinking`
- `providerOptions.claude-api.tool_choice`
- `providerOptions.claude-api.tools`
- `providerOptions.claude-api.top_k`
- `providerOptions.claude-api.top_p`

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.text` | `{"$map":{"from":{"$filter":{"from":{"$ref":"response.content"},"as":"part","where":{"$eq":[{"$ref":"part.type"},"text"]}}},"as":"part","in":{"$ref":"part.text"}}}` |
| `response.reasoning` | `{"$map":{"from":{"$filter":{"from":{"$ref":"response.content"},"as":"part","where":{"$eq":[{"$ref":"part.type"},"thinking"]}}},"as":"part","in":{"$ref":"part.thinking"}}}` |
| `response.usage` | `{"$ref":"response.usage"}` |
| `response.errorPaths[0]` | `"error.type"` |
| `response.messagePaths[0]` | `"error.message"` |
| `agentResponse.textPaths[0]` | `"content.0.text"` |
| `agentResponse.reasoningPaths[0]` | `"content.0.thinking"` |
| `agentResponse.toolCallsPath` | `"content"` |
| `agentResponse.toolCallIdPaths[0]` | `"id"` |
| `agentResponse.toolCallNamePaths[0]` | `"name"` |
| `agentResponse.toolCallArgumentsPaths[0]` | `"input"` |

## 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

该包只代表上述线协议 profile；同一品牌的其他 endpoint、云区域或网关包装必须使用独立插件，不能根据模型名猜测。

<!-- YINGCE_MANIFEST_CONTRACT_START -->
## 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。

```json
{
  "apiVersion": "yingce.plugin/v2",
  "id": "anthropic-messages",
  "name": "Anthropic Messages",
  "version": "2.0.0",
  "author": "Anthropic / 影策",
  "description": "Anthropic Messages 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": "claude-api",
        "label": "Anthropic Messages",
        "capabilities": [
          "text"
        ],
        "scopes": [
          "admin.system-channel",
          "user.custom-channel",
          "canvas",
          "creation",
          "agent"
        ],
        "baseUrl": "https://api.anthropic.com",
        "requiresPublicMediaUrls": false,
        "auth": {
          "type": "anthropic",
          "field": "apiKey"
        },
        "parameters": [
          {
            "name": "model",
            "type": "string",
            "required": true,
            "mapping": "model",
            "description": "上游模型 ID。"
          },
          {
            "name": "messages",
            "type": "message[]",
            "required": true,
            "mapping": "provider message container",
            "description": "包含历史消息和当前用户输入。"
          },
          {
            "name": "instructions",
            "type": "string",
            "required": false,
            "mapping": "system/instructions",
            "description": "系统指令。"
          },
          {
            "name": "temperature",
            "type": "number",
            "required": false,
            "mapping": "temperature",
            "description": "采样温度。"
          },
          {
            "name": "top_p",
            "type": "number",
            "required": false,
            "mapping": "top_p",
            "description": "核采样参数。"
          },
          {
            "name": "max_tokens",
            "type": "integer",
            "required": false,
            "mapping": "max_tokens/max_output_tokens",
            "description": "最大输出 token。"
          },
          {
            "name": "tools",
            "type": "array",
            "required": false,
            "mapping": "tools/toolConfig",
            "description": "工具定义。"
          },
          {
            "name": "tool_choice",
            "type": "object|string",
            "required": false,
            "mapping": "tool_choice",
            "description": "工具选择策略。"
          },
          {
            "name": "response_format",
            "type": "object",
            "required": false,
            "mapping": "response_format/text",
            "description": "结构化输出配置。"
          },
          {
            "name": "stream",
            "type": "boolean",
            "required": false,
            "mapping": "stream",
            "description": "流式开关；后台任务当前以最终响应归一。"
          }
        ],
        "create": {
          "method": "POST",
          "path": "/v1/messages",
          "contentType": "application/json",
          "body": {
            "model": {
              "$ref": "request.model"
            },
            "max_tokens": {
              "$coalesce": [
                {
                  "$ref": "request.extra.max_tokens"
                },
                {
                  "$ref": "request.providerOptions.claude-api.max_tokens"
                },
                4096
              ]
            },
            "system": {
              "$omitEmpty": {
                "$coalesce": [
                  {
                    "$ref": "request.instructions"
                  },
                  {
                    "$ref": "request.providerOptions.claude-api.system"
                  }
                ]
              }
            },
            "messages": {
              "$filter": {
                "from": {
                  "$ref": "request.messages"
                },
                "as": "message",
                "where": {
                  "$ne": [
                    {
                      "$ref": "message.role"
                    },
                    "system"
                  ]
                }
              }
            },
            "temperature": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.temperature"
              }
            },
            "top_p": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.top_p"
              }
            },
            "top_k": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.top_k"
              }
            },
            "stop_sequences": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.stop_sequences"
              }
            },
            "tools": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.tools"
              }
            },
            "tool_choice": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.tool_choice"
              }
            },
            "metadata": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.metadata"
              }
            },
            "stream": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.stream"
              }
            },
            "thinking": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.thinking"
              }
            },
            "service_tier": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.service_tier"
              }
            }
          },
          "headers": {
            "anthropic-version": {
              "$coalesce": [
                {
                  "$ref": "request.providerOptions.claude-api.anthropic-version"
                },
                "2023-06-01"
              ]
            },
            "anthropic-beta": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.claude-api.anthropic-beta"
              }
            }
          }
        },
        "agent": {
          "method": "POST",
          "path": "/v1/messages",
          "contentType": "application/json",
          "body": {
            "$merge": [
              {
                "$ref": "request.extra.agent.claude"
              },
              {
                "model": {
                  "$ref": "request.model"
                }
              }
            ]
          },
          "headers": {
            "anthropic-version": "2023-06-01"
          }
        },
        "response": {
          "status": "succeeded",
          "text": {
            "$map": {
              "from": {
                "$filter": {
                  "from": {
                    "$ref": "response.content"
                  },
                  "as": "part",
                  "where": {
                    "$eq": [
                      {
                        "$ref": "part.type"
                      },
                      "text"
                    ]
                  }
                }
              },
              "as": "part",
              "in": {
                "$ref": "part.text"
              }
            }
          },
          "reasoning": {
            "$map": {
              "from": {
                "$filter": {
                  "from": {
                    "$ref": "response.content"
                  },
                  "as": "part",
                  "where": {
                    "$eq": [
                      {
                        "$ref": "part.type"
                      },
                      "thinking"
                    ]
                  }
                }
              },
              "as": "part",
              "in": {
                "$ref": "part.thinking"
              }
            }
          },
          "usage": {
            "$ref": "response.usage"
          },
          "errorPaths": [
            "error.type"
          ],
          "messagePaths": [
            "error.message"
          ]
        },
        "agentResponse": {
          "textPaths": [
            "content.0.text"
          ],
          "reasoningPaths": [
            "content.0.thinking"
          ],
          "toolCallsPath": "content",
          "toolCallIdPaths": [
            "id"
          ],
          "toolCallNamePaths": [
            "name"
          ],
          "toolCallArgumentsPaths": [
            "input"
          ]
        }
      }
    ]
  }
}
```
<!-- YINGCE_MANIFEST_CONTRACT_END -->