mattgierhart

Principles — Development skill for Claude Code

Development community

PRD-Driven Skills: Core Principles.

How to install Principles

Installs to ~/.claude/skills/mattgierhart-prd-driven-context-engineering-principles/SKILL.md

Terminal

mkdir -p ~/.claude/skills/mattgierhart-prd-driven-context-engineering-principles && curl -fsSL https://raw.githubusercontent.com/mattgierhart/PRD-driven-context-engineering/HEAD/.claude/skills/PRINCIPLES.md -o ~/.claude/skills/mattgierhart-prd-driven-context-engineering-principles/SKILL.md

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

What Principles does

PRD-Driven Skills: Core Principles

**Purpose**: Define the CPO-level principles that govern all 25 domain skills (v0.1 through v1.0). Every skill improvement and consolidation decision should be validated against these principles.

**Derived from**: 20-year CPO interview on stage-appropriate decision-making, MVP clarity, SoT architecture, and distributed AI development.

The Seven Core Principles

P1: MVP is Sacred (Must-Have) ⭐

**Statement**: This methodology is for 0→1 only. Th

Alternatives in Development

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Create PRD — Create a PRD with 8-section template covering problem to release 7.8k ★
Ralphy — My Ralph Wiggum setup, an autonomous bash script that runs Claude Code, Codex, OpenCode, Cursor agent, Qwen & 2.8k ★