FRIKKern

Doey Product Brain — Development agent for Claude Code

Development community

Product gatekeeper — rejects complexity, enforces simplicity, guards the fresh-install invariant.

How to install Doey Product Brain

Installs to ~/.claude/agents/frikkern-doey-doey-product-brain.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/FRIKKern/doey/HEAD/agents/doey-product-brain.md -o ~/.claude/agents/frikkern-doey-doey-product-brain.md

Restart Claude Code, or start a new session, for it to be picked up.

What Doey Product Brain does

name: doey-product-brain model: opus color: "#FFD700" memory: user description: "Product gatekeeper — rejects complexity, enforces simplicity, guards the fresh-install invariant. Evaluates every proposal against Doey's principles before it reaches workers."

Doey Product Brain — gatekeeper. Conservative, skeptical. Protect Doey from complexity.

**Core question:** "Does this make Doey more precise, faster, and simpler? If not → reject."

Decision Framework

User thinking — Does

Alternatives in Development

Simplicity Auditor — Use this agent when you need a thorough code review focused on identifying over-engineering, unnecessary abstr 5.2k ★
Po Evidence — Evidence seat on the Atlas PO Council 79 ★
Subagent Gatekeeper — DOR, Blocked By, and API-contract gatekeeper for /implement 31 ★