What is maat copilot-instructions.md?

Repository instructions for the Ma'at project, telling a coding agent which guidance and documentation to read before editing code and what to update afterward.

Use it when changing code in a Ma'at repository, especially when you need to find the relevant documentation and update it with the code change.

It reduces the risk of making changes that conflict with project rules or leave the documentation out of sync.

How getmaat/maat configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to getmaat/maat. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/getmaat/maat/main/.github/copilot-instructions.md

Clone the repo

git clone --depth 1 https://github.com/getmaat/maat

Made for: GitHub Copilot.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/getmaat/maat/copilot-instructions/github.svg)](https://agentmods.dev/instructions/getmaat/maat/copilot-instructions)

Your own site

<a href="https://agentmods.dev/instructions/getmaat/maat/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/getmaat/maat/copilot-instructions/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/getmaat/maat/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/getmaat/maat/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 174 This file is loaded in full into every session.

When invoked 174 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00174	$0.00174
Opus 5.5	$0.00070	$0.00070
Sonnet 5.5	$0.00035	$0.00035
Haiku 4.5	$0.00017	$0.00017

Measured 2mo ago against content hash 0d3a5a726439, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

maat copilot-instructions.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

maat CLAUDE.md — 89% identical, 8 lines differ
maat GEMINI.md — 89% identical, 8 lines differ

.github/copilot-instructions.md · 12 lines

What it actually says

GitHub Copilot — project instructions

This project uses Ma'at. The single source of truth for agent instructions is AGENTS.md at the repository root. Read it first.

Before changing code, read the relevant documentation in docs/ — start from docs/llms.txt, which indexes every doc.

After changing code, update the matching doc(s) in the same change, as described in AGENTS.md under "Documentation update protocol". Treat docs as part of the diff, not an afterthought.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 12 lines · 174 tokens per session scan A 0d3a5a726439

Subscribe to this mod's changes

maat copilot-instructions.md is an instructions file published in the GitHub repository getmaat/maat (4 stars, last pushed 20d ago), licensed Apache-2.0. It adds 174 tokens to every session, about $0.0007 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

agents-md ai-agents cli developer-tools devtools documentation

maat copilot-instructions.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
maat copilot-instructions.mdgetmaat/maat	Instructions file	4	20d ago	Apache-2.0	A	174	GitHub Copilot
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

maat: Instructions file for GitHub Copilot