Build a production-ready prompt package — system prompt, few-shot examples, output format, edge case handling, eval criteria. Use when asked to "prompt engineering", "build a prompt", "write a system prompt", or "improve this prompt".
Installation
1
Add the marketplace
/plugin marketplace add tonone-ai/tonone
2
Install plugins
/plugin
Run these commands in Claude Code to add this plugin to your environment. The marketplace must be added before you can install its plugins.