piercelamb/deep-plan

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![deep-plan hero](assets/hero.jpeg)

# /deep-plan, a Claude Code plugin

![Version](https://img.shields.io/badge/version-0.3.2-blue)
![Status](https://img.shields.io/badge/status-beta-orange)
![License](https://img.shields.io/badge/license-MIT-green)
![Claude Code](https://img.shields.io/badge/Claude%20Code-Plugin-purple)
![Python](https://img.shields.io/badge/python-3.11%2B-blue)

> **Blog posts:**
> - [Building /deep-plan](https://pierce-lamb.medium.com/building-deep-plan-a-claude-code-plugin-for-comprehensive-planning-30e0921eb841) - The story behind this plugin
> - [The Deep Trilogy](https://pierce-lamb.medium.com/the-deep-trilogy-claude-code-plugins-for-writing-good-software-fast-33b76f2a022d) - How the three plugins work together
> - [What I Learned](https://pierce-lamb.medium.com/what-i-learned-while-building-a-trilogy-of-claude-code-plugins-72121823172b) - Technical lessons from plugin development

`/deep-plan` transforms vague feature requests into detailed, production-ready implementation plans through AI-assisted research, stakeholder interviews, and multi-LLM review.

[`/deep-implement`](https://github.com/piercelamb/deep-implement), its companion plugin, takes these section files and implements them with TDD methodology, integrated code review, and atomic commits.

For large projects with broad, vague requirements, use [`/deep-project`](https://github.com/piercelamb/deep-project) first to decompose into focused planning units before running `/deep-plan` on each.

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