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7/27/2026
I Built a Token-Routing Decision Tree for My OpenClaw Agent. It Cut My Bill and Stopped Three Cron Failures

I Built a Token-Routing Decision Tree for My OpenClaw Agent. It Cut My Bill and Stopped Three Cron Failures

Short summary

The author built a deterministic pre-call routing classifier for their OpenClaw agent that categorizes each tool call (heartbeat, summary, classify, reasoning, codeWrite) and routes it to the cheapest capable model. This cut their weekly bill from $87 to single digits and prevented three cron failures caused by misrouting. The key insight: routing should be a deterministic function based on call intent, not a sequential fallback chain.

  • •Pre-call classifier routes each tool call to the cheapest capable model based on intent
  • •Reduced weekly LLM costs from $87 to single digits and stopped three cron failures
  • •Includes working JavaScript code for the routing layer and wrapper with fallback logic

Generated with AI, which can make mistakes.

#ai-tools#ai-agents#open-source
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