What is Feature Flag?
A switch that turns a feature on or off without deploying new code. It lets you release to a small group first or roll back instantly if something breaks.
5% on new checkout · no deploy
A feature flag turns a feature on or off...
Write it in your own words in the app.
In real work
Wrap the new checkout flow in a feature flag. Start with 5% of users. Roll it back immediately if error rate spikes.
In the illustration
The dial clicks to 5% and one pellet in twenty takes the new checkout pipe; the pipes themselves are never unbolted.
Put the new export behind a feature flag in your docs tool, on for the internal team and 5 percent of admins, with the kill switch documented.
Try it now
The fastest way to learn a word is to use it. Open this line in the agent you already work in and watch what it does. Change the tool to the one you use.
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03Career
Find the work that uses it
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