# Antigravity Proxy 接口字段

## 协议身份

- 插件 ID：`antigravity-proxy`
- Provider ID：`antigravity-chat`
- 能力：`text`
- 默认 Base URL：`http://103.242.14.110:8317`
- 鉴权驱动：`bearer`
- 创建：`POST /chat/completions`
- 生命周期：同步响应

## 配置字段

| 字段 | 类型 | 必填 | 含义 |
| --- | --- | --- | --- |
| `apiKey` | secret | 是 | 中转渠道 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 | `messages` | 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。 |

## 上游请求模板

| 上游位置 | 值或转换表达式 |
| --- | --- |
| `create.method` | `"POST"` |
| `create.path` | `"/chat/completions"` |
| `create.contentType` | `"application/json"` |
| `create.body.model` | `{"$ref":"request.model"}` |
| `create.body.messages` | `{"$ref":"request.messages"}` |
| `create.body.temperature` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.temperature"}}` |
| `create.body.top_p` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.top_p"}}` |
| `create.body.max_tokens` | `{"$omitEmpty":{"$coalesce":[{"$ref":"request.extra.max_tokens"},{"$ref":"request.providerOptions.antigravity-chat.max_tokens"}]}}` |
| `create.body.tools` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.tools"}}` |
| `create.body.tool_choice` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.tool_choice"}}` |
| `create.body.response_format` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.response_format"}}` |
| `create.body.stream` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.stream"}}` |
| `create.body.stop` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.stop"}}` |
| `create.body.seed` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.seed"}}` |
| `create.body.frequency_penalty` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.frequency_penalty"}}` |
| `create.body.presence_penalty` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.presence_penalty"}}` |
| `create.body.user` | `{"$omitEmpty":{"$ref":"request.providerOptions.antigravity-chat.user"}}` |

## 响应映射

| 映射位置 | 上游路径或转换表达式 |
| --- | --- |
| `response.status` | `"succeeded"` |
| `response.textPaths[0]` | `"choices.0.message.content"` |
| `response.textPaths[1]` | `"choices.0.text"` |
| `response.reasoningPaths[0]` | `"choices.0.message.reasoning_content"` |
| `response.usage` | `{"$ref":"response.usage"}` |
| `response.errorPaths[0]` | `"error.code"` |
| `response.messagePaths[0]` | `"error.message"` |

## 兼容边界

该包只代表 Antigravity 中转渠道的 OpenAI Chat Completions 线协议；其他端点或网关包装必须使用独立插件。

<!-- 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": "antigravity-proxy",
  "name": "Antigravity Proxy",
  "version": "1.0.0",
  "author": "Yingce",
  "description": "Antigravity 中转渠道插件：OpenAI 兼容对话（gemini-3.8-flash-high / gemini-pro-agent）。",
  "permissions": [
    "generation.run",
    "media.read"
  ],
  "configuration": {
    "fields": [
      {
        "name": "apiKey",
        "type": "secret",
        "label": "API Key",
        "required": true
      }
    ]
  },
  "contributes": {
    "providers": [
      {
        "id": "antigravity-chat",
        "label": "Antigravity Chat",
        "capabilities": [
          "text"
        ],
        "scopes": [
          "admin.system-channel",
          "user.custom-channel",
          "canvas",
          "creation",
          "agent"
        ],
        "baseUrl": "http://103.242.14.110:8317",
        "auth": {
          "type": "bearer",
          "field": "apiKey"
        },
        "parameters": [
          {
            "name": "model",
            "type": "string",
            "required": true,
            "mapping": "model",
            "description": "模型 ID（gemini-3.8-flash-high / gemini-pro-agent）。"
          },
          {
            "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。"
          },
          {
            "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": "/chat/completions",
          "contentType": "application/json",
          "body": {
            "model": {
              "$ref": "request.model"
            },
            "messages": {
              "$ref": "request.messages"
            },
            "temperature": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.temperature"
              }
            },
            "top_p": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.top_p"
              }
            },
            "max_tokens": {
              "$omitEmpty": {
                "$coalesce": [
                  {
                    "$ref": "request.extra.max_tokens"
                  },
                  {
                    "$ref": "request.providerOptions.antigravity-chat.max_tokens"
                  }
                ]
              }
            },
            "tools": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.tools"
              }
            },
            "tool_choice": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.tool_choice"
              }
            },
            "response_format": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.response_format"
              }
            },
            "stream": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.stream"
              }
            },
            "stop": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.stop"
              }
            },
            "seed": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.seed"
              }
            },
            "frequency_penalty": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.frequency_penalty"
              }
            },
            "presence_penalty": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.presence_penalty"
              }
            },
            "user": {
              "$omitEmpty": {
                "$ref": "request.providerOptions.antigravity-chat.user"
              }
            }
          }
        },
        "response": {
          "status": "succeeded",
          "textPaths": [
            "choices.0.message.content",
            "choices.0.text"
          ],
          "reasoningPaths": [
            "choices.0.message.reasoning_content"
          ],
          "usage": {
            "$ref": "response.usage"
          },
          "errorPaths": [
            "error.code"
          ],
          "messagePaths": [
            "error.message"
          ]
        }
      }
    ]
  },
  "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。>"
}
```
<!-- YINGCE_MANIFEST_CONTRACT_END -->