opencode-antigravity-auth-remix

v1.3.9

Published

7 hours ago

Google Antigravity IDE OAuth auth plugin for Opencode - access Gemini 3 Pro and Claude 4.5 using Google credentials

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darkstarrd

opencode google antigravity gemini oauth plugin auth claude

Antigravity + Gemini CLI OAuth Plugin for Opencode (Enhanced Fork)

English | 简体中文

This is an enhanced fork based on the excellent work of NoeFabris:
| Feature | Source | | ------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------- | | Dual Quota System, Multi-Account Rotation, Session Recovery, Thinking Recovery, google_search Tool | NoeFabris/opencode-antigravity-auth | | generate_image Tool (Native Implementation + Img2Img) | Native Implementation |
Status: Version 1.3.9 - Added endpoint auto-switching and stability improvements.

Enable Opencode to authenticate against Antigravity (Google's IDE) via OAuth so you can use Antigravity rate limits and access models like gemini-3-pro-high and claude-opus-4-5-thinking with your Google credentials.

What you get

Google OAuth sign-in with automatic token refresh via opencode auth login
Dual Quota System - Access both Antigravity quota (Claude, Gemini 3) and Gemini CLI quota from a single plugin
Multi-Account Rotation - Add multiple Google accounts; automatically rotates when one is rate-limited
Real-time SSE streaming including thinking blocks and incremental output
Extended Thinking - Native support for Claude thinking budgets and Gemini 3 thinking levels
Auto Recovery - Automatic session recovery from Claude tool_result_missing errors
Plugin Compatible - Works alongside other OpenCode plugins (opencodesync, etc.)
generate_image Tool - AI image generation with text-to-image, image-to-image (multi-image fusion), auto-save, and 4K support
google_search Tool - High-quality web search with structural citations and URL analysis.

Installation

For Humans

Option A: Let an LLM do it

Paste this into any LLM agent (Claude Code, OpenCode, Cursor, etc.):

Install the opencode-antigravity-auth-remix plugin and add the Antigravity model definitions to ~/.config/opencode/opencode.json by following: https://raw.githubusercontent.com/Darkstarrd-dev/opencode-antigravity-auth/main/README.md

Option B: Manual setup

Add the plugin to your config (~/.config/opencode/opencode.json):
```
{
  "plugin": ["[email protected]"]
}
```
Authenticate:
```
opencode auth login
```
Add models - Copy the complete configuration below to your ~/.config/opencode/opencode.json:

Use it:

opencode run "Hello" --model=google/antigravity-claude-sonnet-4-5-thinking-high

Available Models

Antigravity Quota

Models with antigravity- prefix use Antigravity quota (Claude + Gemini 3):

| # | Model | Variants | Description | |---| ------------------------------------------- | ------------------------------ | ------------------------------ | | 01| google/antigravity-gemini-3-pro | -low, -high | Gemini 3 Pro with thinking | | 02| google/antigravity-gemini-3-flash | -minimal, -low, -medium, -high | Gemini 3 Flash with thinking | | 03| google/antigravity-claude-opus-4-5-thinking | -low, -medium, -high | Claude Opus 4.5 with thinking | | 04| google/antigravity-claude-sonnet-4-5-thinking | -low, -medium, -high | Claude Sonnet 4.5 with thinking| | 05| google/antigravity-claude-sonnet-4-5 | - | Claude Sonnet 4.5 (no thinking)|

Gemini CLI Quota

Models without antigravity- prefix use Gemini CLI quota:

| # | Model | Variants | Description | |---| ------------------------------- | ------------------------------------- | ------------------------------ | | 06| google/gemini-3-pro-preview | -low, -medium, -high | Gemini 3 Pro (CLI quota) | | 07| google/gemini-3-flash-preview | -minimal, -low, -medium, -high| Gemini 3 Flash (CLI quota) | | 08| google/gemini-2.5-pro | - | Gemini 2.5 Pro | | 09| google/gemini-2.5-flash | - | Gemini 2.5 Flash | | 10| google/gemini-2.5-flash-lite | - | Gemini 2.5 Flash Lite |

Complete Configuration

Copy this to ~/.config/opencode/opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["[email protected]"],
  "provider": {
    "google": {
      "models": {
        "antigravity-gemini-3-pro": {
          "id": "antigravity-gemini-3-pro",
          "name": "#01 Gemini 3 Pro (Antigravity)",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65535 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "low": { "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } } }
          }
        },
        "antigravity-gemini-3-flash": {
          "id": "antigravity-gemini-3-flash",
          "name": "#02 Gemini 3 Flash (Antigravity)",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "minimal": { "options": { "thinkingConfig": { "thinkingLevel": "minimal", "includeThoughts": true } } },
            "low": { "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingLevel": "medium", "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } } }
          }
        },
        "antigravity-claude-opus-4-5-thinking": {
          "id": "antigravity-claude-opus-4-5-thinking",
          "name": "#03 Claude Opus 4.5 Thinking (Antigravity)",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "low": { "options": { "thinkingConfig": { "thinkingBudget": 8192, "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingBudget": 16384, "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingBudget": 32768, "includeThoughts": true } } }
          }
        },
        "antigravity-claude-sonnet-4-5-thinking": {
          "id": "antigravity-claude-sonnet-4-5-thinking",
          "name": "#04 Claude Sonnet 4.5 Thinking (Antigravity)",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "low": { "options": { "thinkingConfig": { "thinkingBudget": 8192, "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingBudget": 16384, "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingBudget": 32768, "includeThoughts": true } } }
          }
        },
        "antigravity-claude-sonnet-4-5": {
          "id": "antigravity-claude-sonnet-4-5",
          "name": "#05 Claude Sonnet 4.5 (Antigravity)",
          "reasoning": false,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] }
        },
        "gemini-3-pro-preview": {
          "id": "gemini-3-pro-preview",
          "name": "#06 Gemini 3 Pro (CLI)",
          "reasoning": true,
          "limit": { "context": 1000000, "output": 64000 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "low": { "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingLevel": "medium", "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } } }
          }
        },
        "gemini-3-flash-preview": {
          "id": "gemini-3-flash-preview",
          "name": "#07 Gemini 3 Flash (CLI)",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "minimal": { "options": { "thinkingConfig": { "thinkingLevel": "minimal", "includeThoughts": true } } },
            "low": { "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingLevel": "medium", "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } } }
          }
        },
        "gemini-2.5-pro": {
          "id": "gemini-2.5-pro",
          "name": "#08 Gemini 2.5 Pro (CLI)",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] }
        },
        "gemini-2.5-flash": {
          "id": "gemini-2.5-flash",
          "name": "#09 Gemini 2.5 Flash (CLI)",
          "reasoning": false,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] }
        },
        "gemini-2.5-flash-lite": {
          "id": "gemini-2.5-flash-lite",
          "name": "#10 Gemini 2.5 Flash Lite (CLI)",
          "reasoning": false,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] }
        }
      }
    }
  }
}

Usage Examples

# Antigravity quota models
opencode run "Hello" --model=google/antigravity-claude-sonnet-4-5-thinking-high
opencode run "Hello" --model=google/antigravity-gemini-3-pro-high

# Gemini CLI quota models
opencode run "Hello" --model=google/gemini-3-pro-preview-high
opencode run "Hello" --model=google/gemini-2.5-flash

Built-in Tools

generate_image

AI image generation with automatic file saving and WebP conversion. Uses gemini-3-pro-image.

| Parameter | Type | Required | Default | Description | |-----------|------|----------|---------|-------------| | prompt | string | Yes | - | Image description | | aspect_ratio | string | No | "1:1" | Aspect ratio | | quality | string | No | "standard" | Image quality (hd = 4K) | | imagePaths | string[] | No | [] | List of reference image paths for Image-to-Image generation (max 10) |

Supported aspect ratios: 1:1, 16:9, 9:16, 4:3, 3:4, 21:9

Features:

Text-to-Image: Generate images from scratch using prompts
Image-to-Image: Provide reference images for style transfer, editing, or fusion
Auto-save: Saves to {project}/imgs/ directory
WebP: Generates optimized WebP version (75% quality) alongside original
4K Support: High-definition output via dynamic model configuration

Image-to-Image Guide

To use Image-to-Image generation, provide the absolute local paths of your reference images in the imagePaths parameter.

Scenario 1: Style Transfer

Prompt: "Turn this photo into a cyberpunk style illustration"
imagePaths: ["/path/to/your/photo.jpg"]

Scenario 2: Multi-Image Fusion

Prompt: "Combine the cat from the first image and the dog from the second image playing together in a park"
imagePaths: ["/path/to/cat.jpg", "/path/to/dog.png"]

Notes:

Paths must be absolute local file system paths.
Supports JPG, PNG, WebP.
Maximum 10 reference images.

google_search

High-quality web search and URL analysis with structural citations.

License

MIT

Antigravity + Gemini CLI OAuth Opencode 插件 (增强分支)

English | 简体中文

这是一个增强分支，完全基于 NoeFabris 的优秀项目：
| 功能 | 来源 | | ------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------- | | 双配额系统、多账号轮换、会话恢复、思考过程恢复、google_search 工具 | NoeFabris/opencode-antigravity-auth | | generate_image 工具 (原生实现 + 图生图) | 原生实现 |
状态: 版本 1.3.7 - 集成原生工具并优化稳定性。

使 Opencode 能够通过 OAuth 验证 Antigravity (Google 的 IDE)，从而让你可以使用 Google 凭据访问 Antigravity 配额并使用 gemini-3-pro-high 和 claude-opus-4-5-thinking 等模型。

核心功能

Google OAuth 登录 - 通过 opencode auth login 自动刷新令牌
双配额系统 - 单个插件即可访问 Antigravity 配额 (Claude, Gemini 3) 和 Gemini CLI 配额
多账号轮换 - 支持添加多个 Google 账号；当某个账号触发频率限制时自动切换
实时 SSE 流式传输 - 包括思考块 (Thinking blocks) 和增量输出
扩展思考能力 - 原生支持 Claude 思考预算和 Gemini 3 思考等级
自动恢复 - 自动处理 Claude 的 tool_result_missing 错误并恢复会话
插件兼容性 - 可与其他 OpenCode 插件 (如 opencodesync 等) 同时运行
generate_image 工具 - AI 图像生成，支持文生图、图生图 (多图融合)、自动保存、WebP 转换和 4K 输出
google_search 工具 - 高质量网页搜索，支持结构化引用和 URL 分析。

安装步骤

智能助手安装 (推荐)

将以下指令发送给任何 LLM 助手 (Claude Code, OpenCode, Cursor 等):

参考 https://raw.githubusercontent.com/Darkstarrd-dev/opencode-antigravity-auth/main/README.md 安装 opencode-antigravity-auth-remix 插件，并将 Antigravity 模型定义添加到 ~/.config/opencode/opencode.json。

手动安装

在配置中添加插件 (~/.config/opencode/opencode.json):
```
{
  "plugin": ["[email protected]"]
}
```
身份验证:
```
opencode auth login
```
添加模型定义 - 将下方的完整配置复制到你的 ~/.config/opencode/opencode.json。

开始使用:

opencode run "你好" --model=google/antigravity-claude-sonnet-4-5-thinking-high

可用模型

Antigravity 配额 (Antigravity Quota)

带有 antigravity- 前缀的模型使用 Antigravity 配额 (包含 Claude 和 Gemini 3):

| # | 模型 | 变体 (Variants) | 描述 | |---| ------------------------------------------- | ------------------------------ | ------------------------------ | | 01| google/antigravity-gemini-3-pro | -low, -high | Gemini 3 Pro (带思考过程) | | 02| google/antigravity-gemini-3-flash | -minimal, -low, -medium, -high | Gemini 3 Flash (带思考过程) | | 03| google/antigravity-claude-opus-4-5-thinking | -low, -medium, -high | Claude Opus 4.5 (带思考预算) | | 04| google/antigravity-claude-sonnet-4-5-thinking | -low, -medium, -high | Claude Sonnet 4.5 (带思考预算)| | 05| google/antigravity-claude-sonnet-4-5 | - | Claude Sonnet 4.5 (普通模式)|

Gemini CLI 配额 (Gemini CLI Quota)

不带 antigravity- 前缀的模型使用 Gemini CLI 配额:

| # | 模型 | 变体 (Variants) | 描述 | |---| ------------------------------- | ------------------------------------- | ------------------------------ | | 06| google/gemini-3-pro-preview | -low, -medium, -high | Gemini 3 Pro (CLI 配额) | | 07| google/gemini-3-flash-preview | -minimal, -low, -medium, -high| Gemini 3 Flash (CLI 配额) | | 08| google/gemini-2.5-pro | - | Gemini 2.5 Pro | | 09| google/gemini-2.5-flash | - | Gemini 2.5 Flash | | 10| google/gemini-2.5-flash-lite | - | Gemini 2.5 Flash Lite |

完整配置示例

将以下内容复制到 ~/.config/opencode/opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["[email protected]"],
  "provider": {
    "google": {
      "models": {
        "antigravity-gemini-3-pro": {
          "id": "antigravity-gemini-3-pro",
          "name": "#01 Gemini 3 Pro (Antigravity)",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65535 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "low": { "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } } }
          }
        },
        "antigravity-gemini-3-flash": {
          "id": "antigravity-gemini-3-flash",
          "name": "#02 Gemini 3 Flash (Antigravity)",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "minimal": { "options": { "thinkingConfig": { "thinkingLevel": "minimal", "includeThoughts": true } } },
            "low": { "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingLevel": "medium", "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } } }
          }
        },
        "antigravity-claude-opus-4-5-thinking": {
          "id": "antigravity-claude-opus-4-5-thinking",
          "name": "#03 Claude Opus 4.5 Thinking (Antigravity)",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "low": { "options": { "thinkingConfig": { "thinkingBudget": 8192, "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingBudget": 16384, "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingBudget": 32768, "includeThoughts": true } } }
          }
        },
        "antigravity-claude-sonnet-4-5-thinking": {
          "id": "antigravity-claude-sonnet-4-5-thinking",
          "name": "#04 Claude Sonnet 4.5 Thinking (Antigravity)",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "low": { "options": { "thinkingConfig": { "thinkingBudget": 8192, "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingBudget": 16384, "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingBudget": 32768, "includeThoughts": true } } }
          }
        },
        "antigravity-claude-sonnet-4-5": {
          "id": "antigravity-claude-sonnet-4-5",
          "name": "#05 Claude Sonnet 4.5 (Antigravity)",
          "reasoning": false,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] }
        },
        "gemini-3-pro-preview": {
          "id": "gemini-3-pro-preview",
          "name": "#06 Gemini 3 Pro (CLI)",
          "reasoning": true,
          "limit": { "context": 1000000, "output": 64000 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "low": { "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingLevel": "medium", "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } } }
          }
        },
        "gemini-3-flash-preview": {
          "id": "gemini-3-flash-preview",
          "name": "#07 Gemini 3 Flash (CLI)",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "variants": {
            "minimal": { "options": { "thinkingConfig": { "thinkingLevel": "minimal", "includeThoughts": true } } },
            "low": { "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } } },
            "medium": { "options": { "thinkingConfig": { "thinkingLevel": "medium", "includeThoughts": true } } },
            "high": { "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } } }
          }
        },
        "gemini-2.5-pro": {
          "id": "gemini-2.5-pro",
          "name": "#08 Gemini 2.5 Pro (CLI)",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] }
        },
        "gemini-2.5-flash": {
          "id": "gemini-2.5-flash",
          "name": "#09 Gemini 2.5 Flash (CLI)",
          "reasoning": false,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] }
        },
        "gemini-2.5-flash-lite": {
          "id": "gemini-2.5-flash-lite",
          "name": "#10 Gemini 2.5 Flash Lite (CLI)",
          "reasoning": false,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0, "output": 0 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] }
        }
      }
    }
  }
}

使用示例

# 使用 Antigravity 配额模型
opencode run "你好" --model=google/antigravity-claude-sonnet-4-5-thinking-high
opencode run "你好" --model=google/antigravity-gemini-3-pro-high

# 使用 Gemini CLI 配额模型
opencode run "你好" --model=google/gemini-3-pro-preview-high
opencode run "你好" --model=google/gemini-2.5-flash

内置工具

generate_image (生图工具)

基于 gemini-3-pro-image 实现的 AI 图像生成工具，支持自动保存和 WebP 格式转换。

| 参数 | 类型 | 是否必填 | 默认值 | 描述 | |-----------|------|----------|---------|-------------| | prompt | string | 是 | - | 图像描述词 | | aspect_ratio | string | 否 | "1:1" | 纵横比 | | quality | string | 否 | "standard" | 图像质量 (hd = 4K) | | imagePaths | string[] | 否 | [] | 图生图参考图片路径列表 (最多10张) |

支持的纵横比: 1:1, 16:9, 9:16, 4:3, 3:4, 21:9

主要特性:

文生图: 通过提示词生成图片
图生图: 提供参考图片进行风格迁移、编辑或融合
自动保存: 保存至项目目录下的 {project}/imgs/
WebP: 同时生成 WebP 版本 (75% 质量) 以节省空间
高清支持: 支持动态配置 4K (HD) 高清输出

图生图 (Image-to-Image) 使用指南

要使用图生图功能，只需在调用工具时通过 imagePaths 参数提供参考图片的本地绝对路径。

示例场景 1：风格迁移

Prompt: "Turn this photo into a cyberpunk style illustration"
imagePaths: ["/path/to/your/photo.jpg"]

示例场景 2：多图融合

Prompt: "Combine the cat from the first image and the dog from the second image playing together in a park"
imagePaths: ["/path/to/cat.jpg", "/path/to/dog.png"]

注意:

图片路径必须是本地文件系统的绝对路径。
支持 JPG, PNG, WebP 格式。
最多支持 10 张参考图片。

google_search (搜索工具)

高质量网页搜索和 URL 分析，支持结构化引用来源。

开源协议

MIT