Startup Ideas Bank
Cowart is a laundry list of features with zero market validation.
AI roast score: 45/100 (F)
The idea
A Codex plugin that saves images? Sounds like a glorified clipboard with zero evidence anyone wants it. #Fail
In the founder's own words
zhongerxin/Cowart
Cowart
Cowart 是一个面向 Codex 的本���无限画布插件。它基于 tldraw 提供可视化画布,用于构思、标注、生成图片和根据标注图迭代图片。画布运行在本地网页服务中,数据默认保存到当前用户项目的 canvas/ 目录,而不是保存到插件仓库里。
English README: README.en.md
功能
在 Codex 中打开一个本地 tldraw 无限画布。
在当前项目目录中持久化画布页面和图片资源。
在画布中创建 AI image holder,并让 Codex 生成图片填入选中的 holder。
上传或提供 Cowart 标注截图,让 Codex 根据标注生成干净的新图并放到原图旁边。
通过 Cowart MCP 工具读取选择状态、插入图片,并保存到页面本地资源目录。
安装
让 Codex 自动安装
把下面这段发给 Codex:
请从 https://github.com/zhongerxin/cowart.git 安装 Cowart Codex 插件。
请 clone 仓库到 ~/plugins/cowart,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 cowart@personal。
安装后请校验插件,并告诉我是否需要开启一个新对话来加载新技能和 MCP 工具。
手动安装
推荐把插件 clone 到 Codex personal marketplace 默认会引用的位置:
mkdir -p ~ /plugins
git clone https://github.com/zhongerxin/cowart.git ~ /plugins/cowart
cd ~ /plugins/cowart
npm install
npm run build
确保 ~/.agents/plugins/marketplace.json 中有 Cowart 条目:
{
"name" : " personal " ,
"interface" : {
"displayName" : " Personal "
},
"plugins" : [
{
"name" : " cowart " ,
"source" : {
"source" : " local " ,
"path" : " ./plugins/cowart "
},
"policy" : {
"installation" : " AVAILABLE " ,
"authentication" : " ON_INSTALL "
},
"category" : " Productivity "
}
]
}
然后先注册 personal marketplace,再安装插件:
codex plugin marketplace add ~
codex plugin add cowart@personal
安装后建议开启一个新的 Codex 对话,让新的 skill 和 MCP 工具完整加载。
使用
打开画布
在 Codex 中说:
Open the Cowart canvas for this project.
Cowart 会启动本地服务,默认��址是:
http://127.0.0.1:43217/
画布数据会保存在当前项目目录下:
canvas/pages/<page-id>/cowart-canvas.json
canvas/pages/<page-id>/assets/
生成新图
打开 Cowart 画布。
在画布里创建并选中一个 AI image holder。
在 Codex 中描述要生成的图片,例如:
Generate a new image into the selected Cowart AI image holder.
Codex 会读取选中的 holder,按它的比例生成图片,并插入到 holder 中。
根据标注图生成新图
在 Cowart 画布中对图片做标注。
截图并把标注截图发给 Codex。
使用提示:
Use my Cowart annotation screenshot to generate a clean revised image beside the original.
Codex 会读取截图里的标注和箭头,生成去掉标注痕迹的新图,并把结果放在原图旁边。原图和标注不会被删除或移动。
技能
cowart:cowart-open-canvas :打开 Cowart 本地画布。
cowart:cowart-image-gen :把生成图片插入选中的 AI image holder。
cowart:cowart-image-edit :根据用户提供的 Cowart 标注截图生成修订图。
本地开发
npm install
npm run dev
npm run build
也可以直接启动画布服务,并指定用户项目目录:
./scripts/start-canvas.sh /path/to/user/project
常用环境变量:
COWART_PORT :本地服务端口,默认 43217 。
COWART_PROJECT_DIR :画布数据所属的用户项目目录。
COWART_CANVAS_DIR :画布数据目录,默认是 $COWART_PROJECT_DIR/canvas 。
开发者
ZHONG XIN
zhongxin123456@gmail.com
https://www.jiqiren.ai
致谢
Cowart 的画布能力基于 tldraw/tldraw 实现。
The roast
Cowart attempts to position itself as an innovative Codex plugin with features that sound impressive but lack real-world necessity. The problem it addresses is nebulous at best, as it’s unclear why anyone would prefer this over existing solutions, or if there’s even a demand for such a tool. You’re building software for consumers in a global tech industry, yet your audience of 'general' users is likely confused about what exactly this product solves. Plus, launching as a solo founder in the idea stage with no funding screams 'hobby project' rather than a viable startup.
Red flags
- No clear customer need or pain point addressed by the product.
- Solo founder with no funding means limited resources and support.
- Unclear monetization strategy with 'will_pay' as the biggest unknown.
Verdict
Scrap the idea and find a real problem to solve before wasting more time.
Start with your own startup idea →
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