y-times-y/y
88 stars · Last commit 2026-07-10
Malleable coding agent app. Use Claude Code and Codex to code and reshape the app itself live.
README preview
# y
<p align="center">
<img src="docs/assets/y-readme-hero.png" alt="y desktop app showing a chat-first coding workspace" width="100%" />
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https://github.com/user-attachments/assets/24f10277-bb0e-4c3f-8a05-6833363d07a2
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<a href="https://github.com/y-times-y/y/releases/latest/download/y.dmg">
<img alt="Download for macOS" src="https://img.shields.io/badge/Download%20for-macOS-000000?style=for-the-badge&logo=apple&logoColor=white" />
</a>
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**y** is a malleable desktop coding-agent app.
It is built around a simple idea: software should become malleable while you use it. The main interface is a chat, but the app can reshape its own UI through a protected Modify surface. You can ask y to change how y itself works, keep the change if it renders safely, or roll it back if it does not.
y is not a new agent model. It is a local, chat-first workspace for the coding agents you already use: Claude Code, OpenAI Codex, and other CLI-native agents over time.