What is andy-universal-agent-rules AGENTS.md?

Repository instructions for a reusable set of rules and scripts for coding agents. They describe the project setup, automatically detected technology stack, quick commands, and a small knowledge-base system.

Use them when working on this repository, detecting its environment, managing stored knowledge, running the interactive agent command line, or following its documented workflows.

They give an agent consistent guidance for understanding the project and running its maintenance tools. They also document where to save, search, validate, and back up project knowledge.

How andiupn/andy-universal-agent-rules configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to andiupn/andy-universal-agent-rules. 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/andiupn/andy-universal-agent-rules/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/andiupn/andy-universal-agent-rules

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/andiupn/andy-universal-agent-rules/agents-md/github.svg)](https://agentmods.dev/instructions/andiupn/andy-universal-agent-rules/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/andiupn/andy-universal-agent-rules/agents-md"><img src="https://agentmods.dev/badge/instructions/andiupn/andy-universal-agent-rules/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/andiupn/andy-universal-agent-rules/agents-md"><img src="https://agentmods.dev/badge/instructions/andiupn/andy-universal-agent-rules/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,414 This file is loaded in full into every session.

When invoked 1,414 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	$0.01414	$0.01414
Opus 5.5	$0.00566	$0.00566
Sonnet 5.5	$0.00283	$0.00283
Haiku 4.5	$0.00141	$0.00141

Measured 2mo ago against content hash 1566bc552cc6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

andy-universal-agent-rules 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 · 250 lines

How it starts

The opening of the file, as written. The whole thing — 250 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

AI Agent Instructions for this project. Supported by GitHub Copilot, Cursor, Kiro, Windsurf, Antigravity.

Stats: 0 entries (start building your knowledge base!)

📋 Project Overview

Project: [Your Project Name]
Purpose: [What this project does]
Stack: Auto-detected in .agent/context/environment.json

🛠️ Tech Stack & Environment

NOTE: Actual versions are auto-detected. Run python .agent/scripts/detect-environment.py to update.

Check your environment:

python .agent/scripts/detect-environment.py
cat .agent/context/environment.json

⚡ Quick Commands

# Knowledge Management (Core Features)
python .agent/scripts/save-knowledge.py --category gotchas "Your gotcha here"
python .agent/scripts/search-knowledge.py "search term"
python .agent/scripts/validate-index.py --fix

# Backup & Environment
python .agent/scripts/backup-memory.py
python .agent/scripts/detect-environment.py

# Interactive CLI (Recommended - No Python needed!)
bash .agent/scripts/agent-cli.sh        # Linux/Mac
powershell .agent/scripts/agent-cli.ps1 # Windows

🔄 Workflows (AI-Powered)

Tell your AI assistant to run these workflows:

Workflow	Command	What It Does
Maintenance	"Run maintenance workflow"	Validate, backup, update environment
Save from Chat	"Save learnings from this chat"	Extract & save knowledge from session
Search	"Search for [topic]"	Find existing knowledge

📁 Workflow files: .agent/workflows/

🔧 Supported Editors

Editor	Status
VSCode + GitHub Copilot	✅
Cursor AI	✅
Kiro AI	✅
Windsurf Editor	✅
Antigravity (Gemini/Claude)	✅

⚠️ Critical Gotchas

Your knowledge base starts here! Add gotchas as you discover them.

Example Format:

Read the full file on GitHub · 250 lines

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 · 250 lines · 1,414 tokens per session scan A 1566bc552cc6

Subscribe to this mod's changes

andy-universal-agent-rules AGENTS.md is an instructions file published in the GitHub repository andiupn/andy-universal-agent-rules (2 stars, last pushed 4mo ago), licensed MIT. It adds 1,414 tokens to every session, about $0.0057 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.

Building agents agents ai-agent cursor-ai developer-tools github-copilot knowledge-management

andy-universal-agent-rules AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
andy-universal-agent-rules AGENTS.mdandiupn/andy-universal-agent-rules	Instructions file	2	4mo ago	MIT	A	1,414	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	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

andy-universal-agent-rules: Instructions file for Codex