dietrichgebert/ponytail ? reverse-engineered prompt

Build me a small JavaScript project that makes AI coding agents act more like a super careful senior dev who only writes the minimum needed. I want it to guide the agent to reuse what already exists, prefer native browser and platform features, and stop overbuilding simple things like date pickers or wrappers when the built in option is enough.

It should work as a plugin or skill pack for common coding assistants, with simple install steps, a few example prompts, and clear docs for how to use it in real projects. Include the safety stuff too, so it still checks validation, security, accessibility, and data loss concerns before deciding to keep code small. If you need current docs for any of the agent platforms, look them up online.

Also add a basic benchmark or demo setup that shows the idea in action, plus tests and a clean README that explains the philosophy in plain English.