GitHub Copilot

The whole feature. In the controller.

Copilot writes the common shape, not yours.

What you'll learn

Why Copilot puts business logic in ASP.NET controllers
Why a Skill description is its activation trigger
How rules, a workflow and a checklist produce a thin controller

copilot 9 steps 51 seconds February 6, 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

Add a query

A developer asks Copilot for a GetOrderById query. No Skill exists yet.

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.

Building Your First GitHub Copilot Skill: A .NET Clean Architecture SKILL.md, Start to Finish

A build-along for .NET developers: create one GitHub Copilot Skill (SKILL.md) that enforces Clean Architecture, CQRS and your API contract.
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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