Add Feature Flags Automatically

The problem

Manual feature rollouts are risky. Relying on raw environment checks or scattering conditional logic leads to hard-to-maintain code, accidental data leaks, and rigid release cycles that require a full deployment to revert errors.

What it does

• Detects your project stack and existing flag infrastructure to ensure architectural consistency.
• Implements centralized flag evaluation services for local, environment-based, or hosted provider toggles.
• Creates deterministic percentage rollouts and user-based targeting without relying on unstable random values.
• Generates fail-safe kill switches and beta-access logic with clear default states.
• Updates environment templates and adds unit tests to verify both enabled and disabled code paths.

Frameworks & tools

Works with any framework. Supports local configuration patterns or hosted providers via environment-variable references. Uses Bash for dependency management and validation.

Why this beats prompting it yourself

This skill enforces strict safety rules like deterministic hashing for rollouts and centralized evaluation patterns. It prevents common DIY mistakes such as hardcoding secrets, using flags for authorization, or creating inconsistent client-side targeting.

Use cases

• Wrapping a risky new UI component in a percentage-based rollout.
• Adding an emergency kill switch to a third-party API integration.
• Enabling specific features only for internal staff or beta testers.
• Migrating scattered environment checks into a unified flag service.

Known limitations

Does not handle actual authorization or sensitive data protection. Requires existing user identifiers for tenant-based targeting.