TL;DR Link to heading I had reduced my OpenClaw heartbeat cadence a few weeks ago expecting a big drop in LLM credit usage. It barely moved the bill. Digging into the per-call usage logs, I found that every persistent session had compactionCount: 0, so each cron run and group chat reply was replaying its own growing transcript on top of a 12k-character bootstrap. The fixes that helped were elsewhere: a 500 KB compaction trigger, deduplicated overlap between the heartbeat and a daily cron, and a reset of the stale sessions. Together they took my daily token total from ~2.2M to ~256k. Slowing the heartbeat to once a day contributed a small share.
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