


kaleb
3.5K posts

@KalebAutomates
Data & IT Pipe|Delimiters|Are|Evil| HIPAA Compliant Dennis Nedry saved the world by ruining Jurassic Park Destination: Automation This is the last 30 characters





The kicker: none of this will change her political views. She’ll still promote the same policies and vote by the same way.







Richard Dawkins has officially been one-shot







THIS GUY ACCIDENTALLY BURNED $6,000 IN CLAUDE USAGE OVERNIGHT WITH ONE COMMAND he set a /loop command to check his open PRs every 30 minutes the night before and forgot about it it ran 46 times over 26 hours on opus 4.7. completely unattended here's how claude billing ACTUALLY works: every API call sends your ENTIRE conversation history (not just the latest message). turn 1 sends a few hundred tokens. turn 46 sends 800,000 tokens anthropic uses prompt caching to make this cheaper. if your conversation was sent recently it serves from cache at a 12.5x discount but...cache expires after 5 minutes of inactivity his /loop was set to 30 minutes. so every single iteration: > loop fires, history gets cached > 30 minutes pass, cache expires > loop fires again, cache is gone > has to re-cache the entire conversation from scratch at full price > each iteration also adds its own output so the next re-cache is even bigger by hour 20 the conversation had grown to 800k tokens. every iteration was paying to re-cache 800k tokens at the expensive write rate. the actual PR check responses were nothing compared to the caching cost (obviously) anthropic's dashboard has a multi-day reporting lag. he had no idea anything was wrong until the limit email hit he woke up to a $6,000 bill for a command that was supposed to be a simple PR checker if you use /loop in claude code, keep the interval under 5 minutes so the cache stays warm. or start a fresh session for each loop



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