GitHub Copilot

14 review comments. 11 were conventions.

Copilot guessed. Nothing told it otherwise.

What you'll learn

Why Copilot picks the most common pattern, not yours
How to count convention mistakes in a pull request
Which lines in copilot-instructions.md carry the weight

copilot 9 steps 51 seconds January 5, 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

Same Copilot, same Monday

Two new developers, one task. One clone has no instructions file.

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.

What Is GitHub Copilot Custom Instructions? (And Why Your Project Needs One)

GitHub Copilot custom instructions explained with a real Flutter app you can clone: what the file is, why every project needs one, and beginner mistakes.
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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