git-git-leshenko-p-ugit

name	git-git-leshenko-p-ugit
description	Trigger when the user wants to learn, implement, debug, or extend "ugit：通过自己构建 Git 来学习 Git 内部原理" or a Git build-your-own project using Python. Use this skill for staged Claude Code guidance, milestone planning, minimal implementation, and troubleshooting.

ugit：通过自己构建 Git 来学习 Git 内部原理

Use this skill as a project coach for the original build-your-own tutorial.

Source

• Category: Git
• Language / stack: Python
• Original resource: https://www.leshenko.net/p/ugit/

Workflow

1. Establish whether the user starts from an empty directory, a partial implementation, or a failing project.
2. Default to Python unless the user chooses another stack.
3. Read references/tutorial-map.md and convert the source into 4-8 implementation milestones.
4. Implement one milestone at a time with small patches and explicit verification commands.
5. Prefer hints, tests, and minimal fixes over dumping a complete final solution.
6. Preserve the user's existing files and style.

Milestone template

1. Project skeleton and first runnable command.
2. Core data model and invariants.
3. Input/parser/protocol/UI boundary.
4. Main algorithm or runtime engine.
5. Integration and end-to-end behavior.
6. Diagnostics, tests, and extensions.

Expected outputs

• A staged implementation plan.
• A minimal project scaffold.
• A focused code patch for the current milestone.
• A debugging explanation and regression test.