What is magistra AGENTS.md?

Project-specific instructions for Italian-Builders-Org/magistra. They define how agent files should be organised, including one concept per file, required YAML metadata, and approved type names.

Use them when adding or editing magistra agent files so their metadata, file layout, and type fields follow project rules.

They help contributors create files that match the project's structure and vocabulary.

How Italian-Builders-Org/magistra configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to Italian-Builders-Org/magistra. 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/Italian-Builders-Org/magistra/dev/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/Italian-Builders-Org/magistra

Made for: Codex, OpenCode.

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/italian-builders-org/magistra/agents-md/github.svg)](https://agentmods.dev/instructions/italian-builders-org/magistra/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/italian-builders-org/magistra/agents-md"><img src="https://agentmods.dev/badge/instructions/italian-builders-org/magistra/agents-md/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/italian-builders-org/magistra/agents-md"><img src="https://agentmods.dev/badge/instructions/italian-builders-org/magistra/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,905 This file is loaded in full into every session.

When invoked 1,905 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 unknown 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	$0.01905	$0.01905
Opus 5.5	$0.00762	$0.00762
Sonnet 5.5	$0.00381	$0.00381
Haiku 4.5	$0.00191	$0.00191

Measured 2mo ago against content hash 85bc28f20db4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

magistra AGENTS.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.

AGENTS.md · 123 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 · 123 lines · 1,905 tokens per session scan A 85bc28f20db4

Subscribe to this mod's changes

magistra AGENTS.md is an instructions file published in the GitHub repository Italian-Builders-Org/magistra (27 stars, last pushed 3mo ago), licensed AGPL-3.0. It adds 1,905 tokens to every session, about $0.0076 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 2026-08-30.

magistra AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
magistra AGENTS.mdItalian-Builders-Org/magistra	Instructions file	27	3mo ago	AGPL-3.0	A	1,905	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	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

magistra: Instructions file for Codex