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MagesticAI: Instructions file for Codex

AGENTS.md

MagesticAI AGENTS.md is an instructions file for Codex, OpenCode from dataseeek/MagesticAI. It costs 6,761 tokens per session, scanned A, original, AGPL-3.0.

An AGENTS.md instruction file for the dataseeek/MagesticAI project. The supplied information does not include its project guidance or commands.

In plain words
What is it for?
It is intended to guide AI coding assistants in that repository, but the concrete tasks it supports are not specified here.
Why use it?
The available details are too limited to identify what specific problem it removes.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is dataseeek/MagesticAI's own configuration. It tells Codex and OpenCode how to work on MagesticAI itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything MagesticAI configures →

not rated 87repo 2mo ago A scan 6,761 tokens AGPL-3.0
View source ↗ dataseeek/MagesticAI
Reuse

Borrowing it

Nothing to install: this file belongs to dataseeek/MagesticAI. 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/dataseeek/MagesticAI/dev/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/dataseeek/MagesticAI

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.

agentmods badge for MagesticAI AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/dataseeek/magesticai/agents-md/github.svg)](https://agentmods.dev/instructions/dataseeek/magesticai/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/dataseeek/magesticai/agents-md"><img src="https://agentmods.dev/badge/instructions/dataseeek/magesticai/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.

agentmods 80×15 button for MagesticAI AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/dataseeek/magesticai/agents-md"><img src="https://agentmods.dev/badge/instructions/dataseeek/magesticai/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 6,761 This file is loaded in full into every session.
When invoked 6,761 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.06761 $0.06761
Opus 5.5 $0.02704 $0.02704
Sonnet 5.5 $0.01352 $0.01352
Haiku 4.5 $0.00676 $0.00676

Measured 2mo ago against content hash 4e7e3973c89a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

MagesticAI 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 · 710 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.

  1. 2mo ago First seen · 710 lines · 6,761 tokens per session scan A 4e7e3973c89a

Subscribe to this mod's changes

MagesticAI AGENTS.md is an instructions file published in the GitHub repository dataseeek/MagesticAI (87 stars, last pushed 2mo ago), licensed AGPL-3.0. It adds 6,761 tokens to every session, about $0.0270 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.

Related

MagesticAI AGENTS.md compared with instructions from other repositories

MagesticAI AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
MagesticAI AGENTS.mddataseeek/MagesticAIInstructions file872mo agoAGPL-3.0A6,761Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode