agent-skills: Instructions file for Codex

AGENTS.md

agent-skills AGENTS.md is an instructions file for Codex, OpenCode from b-mendoza/agent-skills. It costs 1,204 tokens per session, scanned A, original, no licence file.

An AGENTS.md instruction guide for the b-mendoza/agent-skills project. It documents how the agent should work with the project, its users, and other agents.

In plain words
What is it for?
Use it when working in the agent-skills project and needing its documented process or guidance for subagents.
Why use it?
It gives an agent project-specific working rules instead of leaving those decisions implicit.

Instructions file for CodexOpenCode

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

This is b-mendoza/agent-skills's own configuration. It tells Codex and OpenCode how to work on agent-skills 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 agent-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to b-mendoza/agent-skills. 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/b-mendoza/agent-skills/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/b-mendoza/agent-skills

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 agent-skills AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/b-mendoza/agent-skills/agents-md.svg)](https://agentmods.dev/instructions/b-mendoza/agent-skills/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/b-mendoza/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/b-mendoza/agent-skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,204 This file is loaded in full into every session.
When invoked 1,204 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 $0.01204 $0.01204
Opus 5 $0.00602 $0.00602
Sonnet 5 $0.00241 $0.00241
Haiku 4.5 $0.00120 $0.00120

Measured today against content hash 737b3ec116c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

agent-skills 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 today.

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 · 50 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. today Changed · +23 tokens per session 737b3ec116c2
  2. 7d ago First seen · 50 lines · 1,181 tokens per session scan A 1a81d88bdeba

Subscribe to this mod's changes

agent-skills AGENTS.md is an instructions file published in the GitHub repository b-mendoza/agent-skills (1 stars, last pushed today), with no licence file. It adds 1,204 tokens to every session, about $0.0060 per session on Opus 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.

Related

Other instructions, from other repositories