{
  "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"]
        }
      }
    ]
  }
}