GitHub Copilot

All green. Still wrong.

AI reviews how code is written, not whether it is right.

What you'll learn

What an AI review Skill reliably catches
Why a clean, tested pull request can still be wrong
Where the human reviewer still has to decide

copilot 9 steps 51 seconds March 2, 2026 —

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Understand it one step at a time

The short runs these in order in about 51 seconds. Here they are written out — pick any step to jump the short straight to it.

1 Step 1 of 9

A refund pull request

A use case, a button and three tests. It goes up for review.

Free app · no app store

These are built for a phone

Every short is drawn at full portrait height, the shape a phone already is. Installed, it opens full-bleed with no address bar across the top — and the whole library reads offline.

Read deeper on GitHub Copilot

Twenty seconds gets the shape of an idea across. These go into how it behaves in production.

GitHub Copilot Can't Replace Your Code Reviewer: Here's What It Can Actually Automate

A software architect on GitHub Copilot code review: build a Skill that automates the mechanical layer, and the limits that keep a human in the loop.
Building a GitHub Copilot Security Agent for Legacy Systems (Honestly)

Learn what a GitHub Copilot security agent can find in a legacy system, what it can miss, and why scanners and people must still approve changes.
Making GitHub Copilot Understand a Legacy Codebase Nobody Documented

A repeatable method for legacy discovery: turning the business rules, workflows and history a codebase never documented into knowledge Copilot uses.

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