mo-code: Instructions file for Codex

AGENTS.md

mo-code AGENTS.md is an instructions file for Codex, OpenCode from mortis-cube/mo-code. It costs 95 tokens per session, scanned A, original, MIT.

Repository instructions for an experimental coding agent called mo-code. They describe the project's goals and limits, including when an agent may submit code or change tests.

In plain words
What is it for?
Use them to guide coding work in mo-code, especially decisions about project scope, code submissions, and test modifications.
Why use it?
They give an AI coding assistant clear project rules to follow. This reduces unwanted commits and unapproved changes to existing tests.

Instructions file for CodexOpenCode

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

This is mortis-cube/mo-code's own configuration. It tells Codex and OpenCode how to work on mo-code 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 mo-code configures →

Reuse

Borrowing it

Nothing to install: this file belongs to mortis-cube/mo-code. 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/mortis-cube/mo-code/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/mortis-cube/mo-code

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 mo-code AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/mortis-cube/mo-code/agents-md"><img src="https://agentmods.dev/badge/instructions/mortis-cube/mo-code/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 95 This file is loaded in full into every session.
When invoked 95 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00095 $0.00095
Opus 5.5 $0.00038 $0.00038
Sonnet 5.5 $0.00019 $0.00019
Haiku 4.5 $0.00010 $0.00010

Measured yesterday against content hash 4c45a0772606, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mo-code 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 yesterday.

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 · 6 lines

What it actually says

项目目标

  • 本项目以快速复现 Agent 的核心和重要功能为目标,而非追求工程级实现;设计与实现应优先保持核心机制清晰、可运行,避免在非必要细节上投入精力。
  • 禁止 AI 自动提交代码,除非用户主动要求。
  • AI 禁止自动修改已有的单元测试用例;确需修改时,必须先获得开发者明确确认。
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. yesterday First seen · 6 lines · 95 tokens per session scan A 4c45a0772606

Subscribe to this mod's changes

mo-code AGENTS.md is an instructions file published in the GitHub repository mortis-cube/mo-code (85 stars, last pushed 12d ago), licensed MIT. It adds 95 tokens to every session, about $0.0004 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 2026-10-26.

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