Agent skill
env-setup
Environment configuration and secrets management. Use when setting up .env files, managing secrets, or configuring environments.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/env-setup-tibsfox-gsd-skill-creator
SKILL.md
Environment Configuration
Non-Negotiable Rules
| Rule | Why |
|---|---|
| NEVER commit .env to git | Secrets persist in history forever |
| NEVER log secret values | Logs stored in plain text, forwarded |
| NEVER hardcode secrets | Source code is widely shared |
| ALWAYS use .env.example | Documents vars without exposing values |
| ALWAYS add .env* to .gitignore FIRST | Prevents accidental commit |
| ALWAYS validate config at startup | Fail fast, not hours into production |
.gitignore (add before creating .env)
.env
.env.*
!.env.example
*.pem
*.key
credentials.json
Naming Conventions
- UPPER_SNAKE_CASE:
DATABASE_URL,JWT_SECRET - Prefix by service:
DB_,REDIS_,AWS_ - Booleans:
ENABLE_CACHE=true(not 1/yes) - Feature flags:
FEATURE_*
Key Patterns
- No defaults for secrets — force explicit configuration
- Validate at startup with Zod/Joi/Pydantic, not at first use
- Unique secrets per environment — one leak shouldn't compromise all
- Rotate leaked secrets immediately — check git history, audit access logs
- Process env always wins — CI/CD overrides file-based config
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