First flags should be boring

Feature flags are useful when the first integration is boring enough to finish. The first goal is not a perfect rollout policy, a full targeting matrix, or a big governance system. It is one flag that serves the expected value in production and can be changed without redeploying.

Start with one server-side runtime key, one environment, one flag, and one call site. Keep the default conservative. Wire the fallback explicitly. Send one real request. Then write down what you learned.

The first useful shape

The smallest useful setup is a production environment, a temporary release flag, and one server-side SDK call near the branch you want to control. If the code already has a safe fallback, the flag should use that same value as its default.

That makes the first integration easy to reason about:

• The application keeps working if the flag is missing.
• The runtime key is scoped to one environment.
• The flag has one obvious owner and one obvious removal point.
• The team can prove the evaluation path before adding targeting.

What to avoid

Do not start with every environment, every flag type, and every team workflow. Those are real product features, but they should arrive after the runtime path is proven.

The first flag should be boring. Boring is what lets the second and third flag become habit.