Claude Code is only as good as the context and guardrails it gets. I set up yours as shared config in your repo:

CLAUDE.md with your real commands, architecture and conventions

Permissions: tests and lint run freely; secrets, destructive git, deploys and production database access are blocked

Skills for the work you repeat, and hooks that format code and stop secrets being written

MCP for one tool you use (GitHub, Playwright, Linear, Sentry, docs)

Subagents and a review workflow (local and CI), plus a team playbook

Each piece is tested in your repo, and you get a short report of what ran and what passed. Delivered as a pull request, branch or zip. I never need your secrets.