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  5. Feature Flag
Developer & Web Fundamentalsaka feature toggle

Feature Flag

A runtime switch that turns a feature on or off without a deploy — used for rollouts, experiments, and kill switches.

Ask Melo about this← all terms

AI products use flags to swap models, disable a tool, or hide a broken agent. Flags that stay forever become undocumented config. Pair them with an owner and an expiry, especially for safety kill switches.

Related terms

A/B TestingCanary DeploymentEnvironment VariableContinuous Integration and Continuous DeliveryOAuthCordis