nunchuck AGENTS.md

nunchuck AGENTS.md is an instructions file for Codex, OpenCode from JordanGunn/nunchuck. It costs 137 tokens per session, scanned A, original, MIT.

Repository instructions for Nunchuck, including special index and summary files that help agents find information quickly.

In plain words
What is it for?
Use it to locate documentation through the index files, follow the project’s information lookup rules, and apply its rules when creating or changing skills.
Why use it?
It gives agents a documented way to navigate the repository and protects the instruction file from accidental edits.

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/jordangunn/nunchuck/agents-md
Clone the repo
git clone --depth 1 https://github.com/JordanGunn/nunchuck

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 nunchuck AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/jordangunn/nunchuck/agents-md.svg)](https://agentmods.dev/instructions/jordangunn/nunchuck/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/jordangunn/nunchuck/agents-md"><img src="https://agentmods.dev/badge/instructions/jordangunn/nunchuck/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 137 This file is loaded in full into every session.
When invoked 137 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00137 $0.00137
Opus 5 $0.00068 $0.00068
Sonnet 5 $0.00027 $0.00027
Haiku 4.5 $0.00014 $0.00014

Measured 5d ago against content hash ac853814885b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

nunchuck 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 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.

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 · 20 lines

What it actually says

AGENTS INSTRUCTIONS

Special files

The following files are specially included for agent consumption:

  • .INDEX.md: Directory indices throughout the repository. Use for fast information discovery and content lookup.
  • .SUMMARY.md: High-level summaries of directories. Use for quick overview.

Information Lookup

Use the index files to navigate documentation:

Rules

  • Do not modify this file unless explicitly asked.
  • When creating or modifying skills, treat https://github.com/JordanGunn/asi as the authoritative governance and skill design documentation source; follow its llms.txt entry points (progressive disclosure).
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 · 20 lines · 137 tokens per session scan A ac853814885b

Subscribe to this mod's changes

nunchuck AGENTS.md is an instructions file published in the GitHub repository JordanGunn/nunchuck (9 stars, last pushed 7mo ago), licensed MIT. It adds 137 tokens to every session, about $0.0007 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.