- add CLAUDE.md (project description, architecture, domain notes, git workflow) - add shared .claude/settings.json (allowed commands, .env read protection) - pin Prisma agent skills in skills-lock.json and document how to restore them - ignore generated skills, local settings and Postman skills in .gitignore - add .gitattributes to normalize line endings to LF Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>