Progressive Domain Crystallization (PDC) Skill What This Skill Does This skill enables any AI assistant to build and use a living domain knowledge base for any business application — accumulated incrementally across sessions through a human-AI collaborative protocol. The AI never "knows" the domain by default. But with this skill, it can: - Read a structured file at the start of every session - Use internal terminology and entity names exactly as the business defines them - Flag gaps in domain understanding inline during work - Propose structured additions to the domain file for human review…