MPX68K: Instructions file for Codex

AGENTS.md

MPX68K AGENTS.md is an instructions file for Codex, OpenCode from YosAwed/MPX68K. It costs 633 tokens per session, scanned A, original, no licence file.

Project-specific instructions for coding agents working in the YosAwed/MPX68K repository. They cover the repository layout, build and test commands, code style, naming, and testing rules.

In plain words
What is it for?
Use them when an agent is exploring, editing, building, or testing the MPX68K codebase.
Why use it?
They provide the local rules and commands an agent needs to make changes that fit the project.

Instructions file for CodexOpenCode

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

This is YosAwed/MPX68K's own configuration. It tells Codex and OpenCode how to work on MPX68K 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 MPX68K configures →

Reuse

Borrowing it

Nothing to install: this file belongs to YosAwed/MPX68K. 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/YosAwed/MPX68K/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/YosAwed/MPX68K

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 MPX68K AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/yosawed/mpx68k/agents-md/github.svg)](https://agentmods.dev/instructions/yosawed/mpx68k/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/yosawed/mpx68k/agents-md"><img src="https://agentmods.dev/badge/instructions/yosawed/mpx68k/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 MPX68K AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/yosawed/mpx68k/agents-md"><img src="https://agentmods.dev/badge/instructions/yosawed/mpx68k/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 633 This file is loaded in full into every session.
When invoked 633 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 $0.00633 $0.00633
Opus 5.5 $0.00253 $0.00253
Sonnet 5.5 $0.00127 $0.00127
Haiku 4.5 $0.00063 $0.00063

Measured 2mo ago against content hash 415f4cb89c0e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

MPX68K 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 · 38 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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 · 38 lines · 633 tokens per session scan A 415f4cb89c0e

Subscribe to this mod's changes

MPX68K AGENTS.md is an instructions file published in the GitHub repository YosAwed/MPX68K (25 stars, last pushed 11d ago), with no licence file. It adds 633 tokens to every session, about $0.0025 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

MPX68K AGENTS.md compared with instructions from other repositories

MPX68K AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
MPX68K AGENTS.mdYosAwed/MPX68KInstructions file2511d agononeA633Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, 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