Onboard to a new codebase faster
New job, new repo, no docs? Get plain-English explanations of the modules you need to touch so your first weeks are productive, not just reading.
The first weeks on a new codebase are mostly archaeology: figuring out how the pieces fit, which file owns what, and why a thing is done the strange way it is done. Documentation, when it exists, is usually out of date.
This tool accelerates that ramp-up. Paste the modules and files you need to work in and get clear explanations of their responsibilities and interactions, so you can make your first meaningful change in days instead of weeks. Pair it with a code review pass on your first PR for a confidence boost.
The tool for this
🧩Legacy Code Explainer
Paste unfamiliar code and get a plain-English walkthrough, data flow and risks.
Frequently asked questions
How can I learn a new codebase fast? +
Explain the modules you will touch first rather than reading everything. Paste them here for plain-English summaries of responsibilities and data flow.
Does it need the whole repo? +
No. Work file by file or module by module; you do not need to paste the entire project.
What about my first pull request? +
Run the code review tool on your change to catch issues before a human reviewer does.
Related tools
🧩Legacy Code Explainer
Paste unfamiliar code and get a plain-English walkthrough, data flow and risks.
🔬Code Review
Paste a diff or file and get a ranked review — bugs, logic, security, performance — with fixes.
📘README Generator
Turn project details into a polished, complete README.md.
Browse the full tools directory, or see all Panshi services.