This repository provides a disciplined approach to working with AI coding assistants by introducing architectural constraints, validation hooks, and session governance patterns. The core component is PAG (Pattern Abstract Grammar), described as an AI-first language with explicit validation gates, phase sequencing, and constraint enforcement designed for agentic workflows. It includes a claude-setup/ directory that can be copied into projects to enforce structured AI collaboration, addressing issues like code bloat, architectural drift, and behavioral inconsistency in AI-assisted development.