Covas
FreeNot checkedSingle-image annotation workspace — draw boxes, arrows, freehand marks, send annotated results back into Codex conversations.
About
Single-image annotation workspace — draw boxes, arrows, freehand marks, send annotated results back into Codex conversations.
README
Covas 是一个面向 Codex 的单图标注 widget 插件。在当前会话里打开标注画布,圈图、画箭头、写备注,提交后带标注的截图自动发回对话流。
功能
- 在 Codex 中打开原生标注画布 widget,支持矩形框、箭头、自由笔、文本气泡
- 标注状态自动保存到
.covas-sessions/,关闭或重启不丢失 - 同一张图的不同变体可平铺切换,标注跟随版本保留
- 直接拖拽本地图片进入画布
- 通过 MCP 工具读取会话状态、保存进度、提交标注结果
安装
让 Codex 自动安装
把下面这段发给 Codex:
请从 https://github.com/sevenking-dev/covas.git 安装 Covas Codex 插件。
请 clone 仓库到 ~/.codex/plugins/covas,确认 .codex-plugin/plugin.json 存在,
把插件加入 personal marketplace,先运行 codex plugin marketplace add ~,
再运行 codex plugin add covas@personal。
安装后请告诉我是否需要开启新对话来加载 MCP 工具。
手动安装
mkdir -p ~/.codex/plugins
git clone https://github.com/sevenking-dev/covas.git ~/.codex/plugins/covas
cd ~/.codex/plugins/covas && npm install && npm run build
确保 ~/.agents/plugins/marketplace.json 中有 Covas 条目:
{
"name": "personal",
"interface": {
"displayName": "Personal"
},
"plugins": [
{
"name": "covas",
"source": {
"source": "local",
"path": "./plugins/covas"
},
"policy": {
"installation": "AVAILABLE",
"authentication": "ON_INSTALL"
},
"category": "Productivity"
}
]
}
然后注册 marketplace 并安装插件:
codex plugin marketplace add ~
codex plugin add covas@personal
使用
打开标注画布
在 Codex 中说:
请打开 Covas 标注画布。
Covas 会通过 render_covas_workspace_widget 在当前会话里渲染画布 widget。
提交标注
- 在画布中对图片做标注(矩形框、箭头、文本等)
- 点击 提交标注,Covas 会把带标注的截图和会话状态发回对话流
- Codex 会根据标注内容继续处理
保存会话状态
Covas 会在 .covas-sessions/ 目录下自动保存会话进度,下次打开时恢复。
本地开发
npm install
npm run build
npm run test
开发者
sevenking
[email protected]
致谢
Covas 的画布标注核心基于 Konva 开源框架构建。
Installing Covas
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/sevenking-dev/covasFAQ
Is Covas MCP free?
Yes, Covas MCP is free — one-click install via Unyly at no cost.
Does Covas need an API key?
No, Covas runs without API keys or environment variables.
Is Covas hosted or self-hosted?
Self-hosted: the server runs locally on your machine via the install command above.
How do I install Covas in Claude Desktop, Claude Code or Cursor?
Open Covas on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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