
A Feature Flag as a Cross-Team Release Gate
There’s a kind of bug I never saw in a log, because it never ran: I read it straight out of two lines of code, before writing a single line of my own. The question wasn’t “how do I fix this” — it was whether shipping something you already know will fail every single time, if flipped on too early, counts as done. Context Early this September I owned the backend piece of a second stock mode for promotional campaigns. The mode already in production: a product has to be allocated a fixed quota before it can sell in a campaign. The new mode is the reverse: a product gets no quota of its own — it sells against the warehouse’s available stock, live, at order time. The feature had a fixed ship date, and my part sat inside it. ...