skillfile: Instructions file for Codex

AGENTS.md

skillfile AGENTS.md is an instructions file for Codex, OpenCode from eljulians/skillfile. It costs 4 tokens per session, scanned A, a copy of superpowers AGENTS.md, Apache-2.0.

Project instructions for finding, installing, tracking, and deploying AI skills and agents across coding tools. A skill is a reusable capability or set of instructions for an AI assistant.

In plain words
What is it for?
Use it to search a large community catalogue, manage selected skills, and deploy them to tools such as Claude Code, Codex, and Cursor.
Why use it?
It helps keep AI skills managed in one declared setup instead of installing and tracking them separately in each tool.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md.

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

Reuse

Borrowing it

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

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 skillfile AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/eljulians/skillfile/agents-md"><img src="https://agentmods.dev/badge/instructions/eljulians/skillfile/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 4 This file is loaded in full into every session.
When invoked 4 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 100% copy Near-identical to another mod 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 $0.00004 $0.00004
Opus 5.5 $0.00002 $0.00002
Sonnet 5.5 $0.00001 $0.00001
Haiku 4.5 $0.00000 $0.00000

Measured 1mo ago against content hash 6ebdb617a810, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skillfile 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 1mo 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.

Origin

This is a copy

100% identical to superpowers AGENTS.md — 123 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

AGENTS.md · 1 lines

What it actually says

CLAUDE.md

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. 1mo ago First seen · 1 lines · 4 tokens per session scan A 6ebdb617a810

Subscribe to this mod's changes

skillfile AGENTS.md is an instructions file published in the GitHub repository eljulians/skillfile (176 stars, last pushed 23d ago), licensed Apache-2.0. It adds 4 tokens to every session, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to superpowers AGENTS.md, differing in 123 lines, and is treated as a copy.

Related

Other instructions, from other repositories