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Sub-agents burning your Claude Code 5-hour window? Check their 5-minute prompt cache

This story is from 2026-09-17. It is preserved in the archive; the latest stories are on the live feed.

I keep seeing posts about the 5-hour limit getting eaten in an hour or two, and I hit exactly that last week, so I dug into what was burning it. It turned out to be one thing, it is documented, there is a one-line fix, and I've got before and after numbers. TL;DR: on a subscription, your main conve…

Read the full story at r/ClaudeAI ↗

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  1. 2026-09-17 19:55 · r/ClaudeAI
    Sub-agents burning your Claude Code 5-hour window? Check their 5-minute prompt cache

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