This is a submission for the GitHub Copilot CLI Challenge
What I Built
I built a small but practical CLI tool called Explain-Error.
It takes confusing JavaScript error messages and converts them into simple, beginner-friendly explanations.
If you've ever seen something like:
TypeError: Cannot read properties of undefined
And thought:
"Okay… but what does that actually mean?"
This tool translates that into:
You're trying to access something on a variable that is undefined.
Make sure the variable has a value before using it.
As someone who teaches and mentors students, I’ve seen how intimidating error messages can be for beginners. This project is something I genuinely wish existed when I first started coding.
It’s small.
It’s focused.
And it solves a real learning pain point.
Demo
My Experience with GitHub Copilot CLI
This is where the real magic happened.
Instead of switching between browser tabs, documentation, and StackOverflow, I stayed entirely inside my terminal.
Here’s how I used GitHub Copilot CLI:
Generating the Initial Structure
I asked Copilot to:
Create a Node.js CLI tool that explains common JavaScript errors in simple language.
It generated a solid pattern-based detection system using regular expressions — something that would’ve taken me significantly longer to structure cleanly from scratch.
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