pm-brain

A second brain for product managers. Plain markdown files in a folder on your laptop. Claude reads them before answering, writes to them after, sweeps them every Friday. No vector DB. No cloud. No agent memory tricks.

You manage one product. Your context is scattered across Notion, Linear, Slack, your dashboards, and your head. You ship a feature. Six weeks later, nobody remembers why you killed the other option. PM Brain fixes that.

See it in action: A week with PM Brain: Lena's first five days is a short story of one PM using it on a real team. New here? Start there.

Research preview. The architecture has months of dogfooding behind it on a sister content brain; the product as installed by real PMs in real organizations is days old. The eval suite (404 of 406 checks pass) is the floor. Real-world install feedback is how the next version gets better. Open issues or join the conversation per the launch post.

Install

Two stages: install the skill once, then bootstrap a brain in any folder you want.

Stage 1: install the skill (one time)

The skill is global. It lands in ~/.claude/skills/pm-brain/ and is available across every Claude Code session, in any working directory.

macOS / Linux / WSL / Git Bash:

Either path pulls only the skill folder (.claude/skills/pm-brain/) into your Claude Code skills directory. The rest of this repo (example-brain/, tests/, docs/) stays on GitHub for you to browse, not on your laptop.