https://dzarlax.dev/tags/claude-code/Recent content in Claude Code on Alexey Panfilov — Product, AI, SystemsHugoen-ushttps://dzarlax.dev/articles/how-a-sleeping-terminal-cost-me-1000-overnight/Fri, 08 May 2026 00:00:00 +0000https://dzarlax.dev/articles/how-a-sleeping-terminal-cost-me-1000-overnight/<p>Picture this: you&rsquo;re working on a project, using Claude Code to refactor a massive monorepo. Evening comes, you close your laptop lid, and in the morning you wake up to a <strong>$1,025</strong> API bill — even though you had strict spending limits set up in your billing dashboard.</p> <p>That&rsquo;s exactly what happened to me. After a deep dive into the logs, we reconstructed the timeline and found the root cause. Spoiler: the culprits were background daemons, infinite agent loops, and — ironically — the prompt caching mechanism itself.</p>