What is agent-stuff AGENTS.md?

Repository instructions for a project containing Pi extensions, release files, and notes. They specify that extensions live in the `extensions` folder and that the separate `pi-mono` reference code should not be changed.

Use them when developing extensions or preparing an npm release, including version updates, changelog entries, commits, tags, and publishing.

They prevent edits from going into the wrong part of the repository and describe the release steps for publishing package changes.

How mitsuhiko/agent-stuff configures Codex and OpenCode

About the project

Agent Stuff is a personal package of reusable skills, extensions, prompt commands, themes, and utilities for the Pi Coding Agent. Its author uses these tools across projects, and the catalogue entries are components from this package that support that workflow.

mitsuhiko/agent-stuff · 3,207 stars · on GitHub

Reuse

Borrowing it

Nothing to install: this file belongs to mitsuhiko/agent-stuff. 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/mitsuhiko/agent-stuff/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/mitsuhiko/agent-stuff

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/mitsuhiko/agent-stuff/agents-md/github.svg)](https://agentmods.dev/instructions/mitsuhiko/agent-stuff/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/mitsuhiko/agent-stuff/agents-md"><img src="https://agentmods.dev/badge/instructions/mitsuhiko/agent-stuff/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/mitsuhiko/agent-stuff/agents-md"><img src="https://agentmods.dev/badge/instructions/mitsuhiko/agent-stuff/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 116 This file is loaded in full into every session.

When invoked 116 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00116	$0.00116
Opus 5.5	$0.00046	$0.00046
Sonnet 5.5	$0.00023	$0.00023
Haiku 4.5	$0.00012	$0.00012

Measured 2mo ago against content hash adb013638188, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-stuff 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 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.

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 · 13 lines

What it actually says

Agent Notes

Releases

Run npm version <patch|minor|major> and verify package.json updates.
Update CHANGELOG.md for the release.
Commit the release changes and tag with the same version.
Push commits and tags, then publish with npm publish if needed.

Extensions

Pi extensions live in ./extensions. When working in this repo, add or update extensions there. You can consult the pi-mono for reference, but do not modify code in pi-mono.

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.

2mo ago First seen · 13 lines · 116 tokens per session scan A adb013638188

Subscribe to this mod's changes

agent-stuff AGENTS.md is an instructions file published in the GitHub repository mitsuhiko/agent-stuff (3,207 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 116 tokens to every session, about $0.0005 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.

agent-stuff AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
agent-stuff AGENTS.mdmitsuhiko/agent-stuff	Instructions file	3.2k	1mo ago	Apache-2.0	A	116	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

agent-stuff: Instructions file for Codex