craft: Instructions file for Codex

AGENTS.md

craft AGENTS.md is an instructions file for Codex, OpenCode from agentpatterns/craft. It costs 2,734 tokens per session, scanned C, original, no licence file.

A set of AGENTS.md instructions for the agentpatterns/craft project. It covers Claude instructions, skill-writing rules, file headers, planning, and creating new skills.

In plain words
What is it for?
Writing or updating skills, following the required file format, using the project’s planning workflow, and creating new agent instructions.
Why use it?
It gives a coding agent the project-specific rules and workflow needed to modify or extend the project consistently.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 craft AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/agentpatterns/craft/agents-md"><img src="https://agentmods.dev/badge/instructions/agentpatterns/craft/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,734 This file is loaded in full into every session.
When invoked 2,734 The same file — it is already loaded in full.
Security scan C 2 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 $0.02734 $0.02734
Opus 5.5 $0.01094 $0.01094
Sonnet 5.5 $0.00547 $0.00547
Haiku 4.5 $0.00273 $0.00273

Measured 2mo ago against content hash 3ed9c56d6182, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

craft AGENTS.md scanned grade C with 2 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

Install: `curl -fsSL https://raw.githubusercontent.com/mattwynne/yaks/main/install.sh | bash`

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Install: `curl -fsSL https://raw.githubusercontent.com/mattwynne/yaks/main/install.sh | bash`
AGENTS.md · 282 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. 2mo ago First seen · 282 lines · 2,734 tokens per session scan C 3ed9c56d6182

Subscribe to this mod's changes

craft AGENTS.md is an instructions file published in the GitHub repository agentpatterns/craft (5 stars, last pushed 7mo ago), with no licence file. It adds 2,734 tokens to every session, about $0.0109 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

craft AGENTS.md compared with instructions from other repositories

craft AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
craft AGENTS.mdagentpatterns/craftInstructions file57mo agononeC2,734Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file275k2d agoMITA4,313Codex, OpenCode