env-manager

Environment variable and configuration management toolkit — dotenv patterns and precedence rules (Node.js, Python, Go), type-safe env validation (Zod, t3-env, Pydantic, Go envconfig), secret management (1Password CLI, cloud vaults, rotation strategies), 12-factor config patterns and feature flags, .env.example sync and developer onboarding, and env security (leak prevention, gitleaks, secret scanning, audit). 6 skills, 3 commands, 1 agent. No dependencies.