Learning-Kit: A Claude Code Plugin for Codebase Onboarding and Exploration

What Learning-Kit Does

Learning-kit is a Claude Code plugin that addresses the problem of developers making changes to unfamiliar codebases without proper understanding. It turns any repository into an interactive walkthrough by analyzing the codebase structure and generating learning materials.

How It Works

Team leads initiate the process by running /study in a repository. Claude explores the codebase and generates a learning plan with 5-10 topics covering:

• How the system is put together
• Where data flows
• What conventions exist
• Potential pitfalls and problematic patterns

The generated plan and configuration file get committed to the repository. When a new developer opens the repo, a SessionStart hook checks their progress against the learning plan.

Configuration Options

The plugin offers three modes that can be set per-repository:

• gate: Blocks developers until they've completed required learning
• nudge: Provides gentle reminders
• off: Disables the feature

Individual developer progress is tracked separately and can be gitignored so each person maintains their own learning state.

Learning Commands

Developers interact with the learning materials through specific commands:

• /teach: Provides code walkthroughs and asks comprehension questions at the end of each topic
• /quiz: Tests understanding with mixed question styles and adjusts difficulty based on performance

Once developers reach the configured learning threshold, the SessionStart hook becomes inactive.

Practical Applications

The creator found the tool particularly useful for inherited client codebases with no documentation. Running /study on such codebases provides a structured map of the system, revealing dead code paths and questionable patterns before making changes. The learning plan doubles as an audit tool, offering a more systematic approach than searching through code manually.

Installation

To install learning-kit:

claude plugins marketplace add oldForrest/claude-plugins
claude plugins install learning-kit@oldforrest

The tool works for solo developers who want to understand unfamiliar codebases, not just team onboarding scenarios.