pm-brain: Instructions file for Codex

AGENTS.md

pm-brain AGENTS.md is an instructions file for Codex, OpenCode from andreaskelm/pm-brain. It costs 4,118 tokens per session, scanned A, original, no licence file.

Project instructions for pm-brain stored in an AGENTS.md file. AGENTS.md is a file that tells coding assistants how to work in a project.

In plain words
What is it for?
Use them to configure pm-brain's product-management coaching, startup process, voice, and operating rules.
Why use it?
They keep the assistant's coaching rules, startup steps, and guiding principles available while working on the project.

Instructions file for CodexOpenCode

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

This is andreaskelm/pm-brain's own configuration. It tells Codex and OpenCode how to work on pm-brain 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 pm-brain configures →

Reuse

Borrowing it

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

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 pm-brain AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/andreaskelm/pm-brain/agents-md"><img src="https://agentmods.dev/badge/instructions/andreaskelm/pm-brain/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 4,118 This file is loaded in full into every session.
When invoked 4,118 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 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 $0.04118 $0.04118
Opus 5.5 $0.01647 $0.01647
Sonnet 5.5 $0.00824 $0.00824
Haiku 4.5 $0.00412 $0.00412

Measured 17d ago against content hash 619e3e3b227d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pm-brain 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 17d 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 · 189 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 17d ago Changed · +3 lines · +208 tokens per session 619e3e3b227d
  2. 28d ago Changed · +94 lines · +1,984 tokens per session 18c3cfb66c67
  3. 2mo ago First seen · 92 lines · 1,926 tokens per session scan A d28dd748da72

Subscribe to this mod's changes

pm-brain AGENTS.md is an instructions file published in the GitHub repository andreaskelm/pm-brain (234 stars, last pushed 18d ago), with no licence file. It adds 4,118 tokens to every session, about $0.0165 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.

Related

pm-brain AGENTS.md compared with instructions from other repositories

pm-brain AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
pm-brain AGENTS.mdandreaskelm/pm-brainInstructions file23418d agononeA4,118Codex, 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