The Kill Switch Blog
Stories from the front lines of runaway cloud and AI bills — and how to stop them. Written by the team that got a $91,316 Cloudflare bill and decided to build a kill switch.
The $91,316 bug: I gave every unit in my RTS its own AI agent
Side-vibing an RTS while Cursor wired every unit to its own Durable Object — connections that never closed. A few weeks later the invoice had five digits and a comma. The full autopsy — commits and all.
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Your empty S3 bucket has a credit card
An empty bucket, doing nothing, ran up a $1,300 bill on ~100 million requests the owner never sent. How the internet can spend your money — and why you need a floor under it.
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The $1M default: how WebSockets quietly taxed Recall.ai
Nothing failed. A completely reasonable WebSocket choice was just a little too slow, at enormous scale, for a year — and the cloud sent them the difference. The cloud bills your inefficiency, brutally.
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