Best practices
- Use one key per environment — separate keys for development, staging, and production make rotation easy and limit blast radius if a key is compromised.
- Use one key per service — this allows you to revoke a single service’s access without affecting others.
- Rotate keys regularly — create a new key, update your secret store, then archive the old key.
- Never hardcode keys — use environment variables or a secrets manager. Never commit keys to version control.
- Monitor
last_used_at— keys with no recent activity may be safe to archive.