Also, maybe a developer password manager with command-line interface (CLI) support for automation. They could use commands to retrieve or generate passwords. Or integration with tools like AWS, GitHub, etc., to fetch and store credentials.

What if the feature is about secure password sharing between team members? But that might overlap with existing tools. Alternatively, generating one-time passwords for CI/CD processes or Docker images. Or automatic rotation of credentials to enhance security.

Wait, there's also the aspect of API keys and OAuth tokens. Maybe a feature that securely stores and auto-fills these when needed. Or integration with version control systems to prevent accidental commits of sensitive info.