Production-grade development environment for Claude Code with 11 specialized agents, 33 slash commands, 24 skills, 15 hooks + 9 opt-in examples (21 events), 9 rules, and 4 MCP servers (playwright, context7, jina-reader, chrome-devtools pinned at 0.23.0). Includes TDD workflow, security review, code review, architecture analysis, build error resolution, and Chrome DevTools Lighthouse / Core Web Vitals audits.