GitHub Copilot

Every request paid for one method.

Instructions are always on. Skills load on demand.

What you'll learn

Why a method in the instructions file costs every request
How Copilot reads only a Skill description until a task matches
Why the description is the trigger

copilot 9 steps 51 seconds January 29, 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

Explained four times

Firestore in the widget, setState, no test. The same chat explanation, every week.

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 Skills Deep Dive: The Missing Layer Between Prompts, Instructions, and Agents

GitHub Copilot Skills explained by an architect: what they are, how they differ from prompts and instructions, and how to build reusable Skills for teams.
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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