FRAILE

First things first, for me feature flags is all about experimentation and testing hypothesis. I just use feature flags which are short lived so the code related to the flag itself is not so long inside the code, usually they are "if's" or lambdas, so once tested the hypothesis I would clean them up, if hte hypothesis for a particular feature works, the rest of the code remains, if not, the rest of the code is cleaned. So when using a feature flag, it is important to track its life cycle so no "dead code" is left behind... Next thing is almost obvious, if we are testing an experiment or a hypothesis, how and when we do know it worked or not?. We must work with business on this particular decisions and ask the stakeholders and team that question, this will lead us to something which is crucial, which metrics do we need to track for the feature we are experimenting, so be sure to track the usage and provide good metrics and a way to check them so you can take a decision about the..