Learn a codebase by re-deriving its design decisions yourself. A Claude Code skill.
# Add to your Claude Code skills
git clone https://github.com/EricJujianZou/rederiveSee how rederive compares with popular alternatives.
rederive is an open-source ai agents skill for AI coding assistants such as Claude Code, Codex CLI, and ChatGPT, built by EricJujianZou. Learn a codebase by re-deriving its design decisions yourself. A Claude Code skill. It has 52 GitHub stars.
rederive's catalog security scan is still queued. You can run an instant dependency and prompt-injection check now with the "Scan for vulnerabilities" button above.
Clone the repository with "git clone https://github.com/EricJujianZou/rederive" and add it to your Claude Code skills directory (see the Installation section above).
rederive is primarily written in Python. It is open-source under EricJujianZou on GitHub, so you can review or fork the full source.
Yes. SkillsLLM lists many other AI Agents skills you can browse and compare side by side. Open the AI Agents category from the badge at the top of this page, or use the Related Skills and comparison links further down to weigh rederive against similar tools.
No comments yet. Be the first to share your thoughts!
Available after the catalog security scan passes.
⚠️ Third-Party Software Notice
This skill is third-party open-source software developed and hosted independently on GitHub. SkillsLLM is an informational directory and does not control or maintain the underlying repository.
Any security checks, ratings, or warnings displayed by SkillsLLM are automated and limited in scope. They do not constitute a security certification or guarantee that the software is safe, error-free, or free from malicious code, vulnerabilities, compromised dependencies, or prompt-injection risks.
Review the source code, permissions, dependencies, and configuration before installing or running any third-party skill. Use is at your own risk. To the maximum extent permitted by applicable law, SkillsLLM is not liable for losses arising from third-party software.
The deep catalog scan for this skill is still queued. Run an instant dependency check now instead.
rederive is a skill for coding agents that teaches you a codebase by making you design it yourself from first principles. It only asks you questions to guide you to the right answer, and it won't explain things. We made this on purpose to aim for understanding through derivation, instead of memorizing what the agent says.
npx skills add EricJujianZou/rederive
The same command installs it in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, opencode, Windsurf, Amp, Goose and about 15 other agents. It puts the skill in every agent folder it finds in your project. Add -g to install it for every project instead. Then type /rederive in your agent.
It needs git, bash and python3.
As a Claude Code plugin:
/plugin marketplace add EricJujianZou/rederive
/plugin install rederive@rederive
By hand, clone the repo and copy skills/rederive into your agent's skills folder, such as ~/.claude/skills/ or ~/.agents/skills/:
git clone https://github.com/EricJujianZou/rederive
cp -r rederive/skills/rederive ~/.agents/skills/
The start of a session on Express (an example, shortened):
/rederive # the repo you are in
/rederive ~/code/myapp # a local repo
/rederive https://github.com/expressjs/express # clones it into the current folder
Talk to it in plain words. Tell it you're stuck, ask to skip a problem, or say you want to start over.
.rederive/map.md. Don't open it until you're done, because it has the answers..rederive/log.md: where you struggled and what you worked out alone. Read it at the end to see what to practice.Everything stays on your machine. .rederive/ goes in the repo's local git exclude list, so it never shows up in your commits. rederive sends no telemetry.
MIT