product-os: Instructions file for Claude Code

CLAUDE.md

product-os CLAUDE.md is an instructions file for Claude Code from motorway-sandbox/product-os. It costs 3,127 tokens per session, scanned A, original, MIT.

A set of instructions for a product-management workspace containing strategy documents, customer research, project files, team notes, and process templates. It tells an agent which context and evidence to read before doing substantial work.

In plain words
What is it for?
Use it when planning product work, writing strategy or experiment documents, reviewing priorities, or using the workspace's templates and research.
Why use it?
It prevents product work from being detached from current priorities, customer information, product knowledge, and agreed ways of working. It also standardises experiment and strategy documents.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions Claude Code.

This is motorway-sandbox/product-os's own configuration. It tells Claude Code how to work on product-os 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 product-os configures →

Reuse

Borrowing it

Nothing to install: this file belongs to motorway-sandbox/product-os. 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/motorway-sandbox/product-os/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/motorway-sandbox/product-os

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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.

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Per session 3,127 This file is loaded in full into every session.
When invoked 3,127 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 $0.03127 $0.03127
Opus 5 $0.01563 $0.01563
Sonnet 5 $0.00625 $0.00625
Haiku 4.5 $0.00313 $0.00313

Measured 6d ago against content hash 550d3d7ffa29, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

product-os CLAUDE.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 6d 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.

CLAUDE.md · 203 lines

How it starts

The opening of the file, as written. The whole thing — 203 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{Your Company} Product Management Workspace

This is a product management workspace for {Your Company}'s product organisation. It contains strategy documents, research, project files, team notes, and process templates.

Key context files

Before doing substantive work, read the relevant context files:

  • context/current-priorities.md — current quarter focus areas, targets, and success metrics
  • data/funnel-context.md — funnel definitions, core metrics, and how to interpret leading vs lagging indicators
  • pm-playbook/README.md — entry point for PM process, templates, evidence standards, and training
  • context/product.md — how the product works end-to-end
  • context/personas/customer-personas.md and partner-personas.md — needs-based personas with prioritisation

About {Your Company}

Conventions

  • {Language preference} throughout all documents (e.g. UK English, US English)
  • Strategy documents apply Reforge frameworks (activation moments, PNIP pyramid, psych framework, growth loops)
  • Project/experiment documents follow the template in pm-playbook/ — always include hypothesis, evidence, success metrics, guardrails, and risks
  • Goals should be outcome-oriented, not deliverables. "Increase trial-to-paid from 4% to 10%" not "Launch new onboarding flow"
  • Tone is direct, professional, and concise. No emojis unless explicitly asked. Avoid corporate fluff

Read the full file on GitHub · 203 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. 6d ago First seen · 203 lines · 3,127 tokens per session scan A 550d3d7ffa29

Subscribe to this mod's changes

product-os CLAUDE.md is an instructions file published in the GitHub repository motorway-sandbox/product-os (9 stars, last pushed 3mo ago), licensed MIT. It adds 3,127 tokens to every session, about $0.0156 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 2026-09-04.

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