koan AGENTS.md

koan AGENTS.md is an instructions file for Codex, OpenCode from Anantys-oss/koan. It costs 3,700 tokens per session, scanned A, original, GPL-3.0.

A set of AGENTS.md instructions for the Anantys-oss/koan project, including its structure, documentation, wiki tools, and commands.

In plain words
What is it for?
Guiding agents when they inspect, document, or modify the koan project.
Why use it?
It gives coding agents project-specific rules and background so they can work in the repository consistently.

Instructions file for CodexOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/anantys-oss/koan/agents-md
Clone the repo
git clone --depth 1 https://github.com/Anantys-oss/koan

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 koan AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/anantys-oss/koan/agents-md.svg)](https://agentmods.dev/instructions/anantys-oss/koan/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/anantys-oss/koan/agents-md"><img src="https://agentmods.dev/badge/instructions/anantys-oss/koan/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,700 This file is loaded in full into every session.
When invoked 3,700 The same file — it is already loaded in full.
Security scan A 1 finding. Scan, not verified.
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 $0.03700 $0.03700
Opus 5 $0.01850 $0.01850
Sonnet 5 $0.00740 $0.00740
Haiku 4.5 $0.00370 $0.00370

Measured 5d ago against content hash 1074afff5f8d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

koan AGENTS.md scanned grade A with 1 finding 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 5d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

`api` level. Do not mock `app.github.subprocess.run`, because that triggers
AGENTS.md · 352 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 5d ago First seen · 352 lines · 3,700 tokens per session scan A 1074afff5f8d

Subscribe to this mod's changes

koan AGENTS.md is an instructions file published in the GitHub repository Anantys-oss/koan (46 stars, last pushed yesterday), licensed GPL-3.0. It adds 3,700 tokens to every session, about $0.0185 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.