Audit and improve GitHub repository hygiene using evidence from local files, package manifests, dependency metadata, and GitHub settings. Use when the user asks for best practices, repo cleanup, repository hygiene, project health, package.json or dependency hygiene, monorepo health, npm/package publishing readiness, GitHub setup, maintainer readiness, contribution workflow, security posture, CI checks, issue or PR templates, branch protection, Dependabot, CodeQL, licensing, release readiness, or open-source/private repository governance.
