GitHub Copilot

The draft is true. It is not enough.

/init describes the code. It decides nothing.

What you'll learn

What Copilot /init gets right when it drafts AGENTS.md
Which sections only a person can write
How to audit an AGENTS.md file in five grep lines

copilot 9 steps 50 seconds January 21, 2026 —

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Understand it one step at a time

The short runs these in order in about 50 seconds. Here they are written out — pick any step to jump the short straight to it.

1 Step 1 of 9

/init writes a draft

Copilot scans the repo and drafts AGENTS.md from what it finds.

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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.

The Complete AGENTS.md Playbook: Build AI Coding Agents That Work Like Your Best Engineer

What belongs in an AGENTS.md file (architecture, security, testing, AI rules), plus what to leave out, common mistakes and a reusable template.
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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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