pm-skills: Instructions file for Codex

AGENTS.md

pm-skills AGENTS.md is an instructions file for Codex, OpenCode from product-on-purpose/pm-skills. It costs 8,400 tokens per session, scanned A, original, Apache-2.0.

A set of product-management instructions for AI agents, organized around a framework for exploring product ideas and defining what to build.

In plain words
What is it for?
Use it for tasks such as testing product assumptions, deciding whether to build, framing a business idea with a one-page canvas, and preparing product-management materials.
Why use it?
It helps turn vague product work into structured decisions and documents, including early risk checks before development begins.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions subagents; mentions Claude Code; mentions Codex.

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

Reuse

Borrowing it

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

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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Per session 8,400 This file is loaded in full into every session.
When invoked 8,400 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.08400 $0.08400
Opus 5 $0.04200 $0.04200
Sonnet 5 $0.01680 $0.01680
Haiku 4.5 $0.00840 $0.00840

Measured 10d ago against content hash ef27274cf67b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

pm-skills 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 10d 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 · 475 lines

How it starts

The opening of the file, as written. The whole thing — 475 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PM-Skills

Open source Product Management skills for AI agents

This repository contains professional PM skills organized by the Triple Diamond framework plus foundation capabilities. Each skill helps AI agents produce high-quality PM artifacts.

Skills

Foundation Classification

build-risk-review

Path: skills/foundation-build-risk-review/SKILL.md

Runs a fast pre-build risk review on a product idea, feature request, or scope change, naming the single assumption most likely to make it fail and returning a clear verdict (build small, validate first, pivot first, or don't build yet) with a no-code validation step. Use before committing build effort, when triaging whether to honor a feature request, or when deciding whether to expand scope, ahead of writing a PRD. For a launched product's pivot-or-persevere decision, use iterate-pivot-decision instead.

lean-canvas

Path: skills/foundation-lean-canvas/SKILL.md

Produces a one-page lean canvas across nine interlocking blocks (problem, customer, UVP, solution, channels, revenue, cost, metrics, unfair advantage) with optional inline HTML and SVG visual rendering. Use when framing a new product thesis, stress-testing an existing strategy, comparing strategic options side-by-side, or aligning a team on business-model assumptions. Works as a strategic hub that cross-links to deeper PM skills without duplicating them.

meeting-agenda

Path: skills/foundation-meeting-agenda/SKILL.md

Produces an attendee-facing agenda that sets what will be discussed, who owns each topic, and how time will be spent. Supports ten meeting type variants (standup, planning, review, decision-making, brainstorm, 1-on-1, stakeholder-review, project-kickoff, working-session, exec-briefing). Emits a shareable summary suitable for Slack or email plus a full agenda with time-boxed topics, type tags, owners, attendee prep, and logistics.

Read the full file on GitHub · 475 lines

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. 10d ago First seen · 475 lines · 8,400 tokens per session scan A ef27274cf67b

Subscribe to this mod's changes

pm-skills AGENTS.md is an instructions file published in the GitHub repository product-on-purpose/pm-skills (657 stars, last pushed today), licensed Apache-2.0. It adds 8,400 tokens to every session, about $0.0420 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 2026-08-30.

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