pep

This skill should be used when the user says "create a PEP", "update PEP", "PEP status", "document this", "spike", "investigate", "explore", "look into", "scout", "research", "scope out", "figure out", or references PEP-*.md files. Manages PEP (Project Enhancement Proposal) documents covering both investigation ("I don't know the shape yet") and execution ("here's the plan"). Wave shapes, mandatory adversarial review before execution, and evidence-required wave completion. The markdown file is the source of truth; an audit hook records what actually ran.