agentmods.dev

skills: Instructions file for Codex

AGENTS.md

skills AGENTS.md is an instructions file for Codex, OpenCode from vtex/skills. It costs 2,185 tokens per session, scanned A, original, no licence file.

Repository-specific instructions for the vtex/skills project. They cover contributor guidance, skill templates, frontmatter formatting, and required constraint formatting.

In plain words
What is it for?
Use them when contributing to vtex/skills, creating or updating skill files, or checking their metadata and constraints.
Why use it?
They help agents follow the project's structure and formatting requirements when editing its skills.

Instructions file for CodexOpenCode

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

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

not rated 47repo changed 24d ago A scan 2,185 tokens no licence
View source ↗ vtex/skills
Reuse

Borrowing it

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

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/vtex/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/vtex/skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,185 This file is loaded in full into every session.
When invoked 2,185 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 $0.02185 $0.02185
Opus 5.5 $0.00874 $0.00874
Sonnet 5.5 $0.00437 $0.00437
Haiku 4.5 $0.00218 $0.00218

Measured 24d ago against content hash 378a2cd70606, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 24d 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 · 145 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. 24d ago Changed · +8 tokens per session 378a2cd70606
  2. 2mo ago First seen · 145 lines · 2,177 tokens per session scan A 857b3bff52aa

Subscribe to this mod's changes

skills AGENTS.md is an instructions file published in the GitHub repository vtex/skills (47 stars, last pushed 24d ago), with no licence file. It adds 2,185 tokens to every session, about $0.0087 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

skills AGENTS.md compared with instructions from other repositories

skills AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
skills AGENTS.mdvtex/skillsInstructions file4724d agononeA2,185Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA2,022GitHub Copilot