A playbook for building a Jev harness, claimed 200x faster and 400x cheaper
A guide to rebuilding agent workflows around Jev, with a three-step rollout: rebuild your setup, pick your most expensive workflow, and compare latency, token use, and cost before and after.
This is a playbook worth studying if you’re building with coding agents. A guide to building a Jev harness breaks down how the right setup can deliver: → Up to 200x faster execution → Up to 400x lower costs The model isn’t always the bottleneck. The harness around it can make a massive difference in both speed and cost. Here’s how to put this into practice: 1. Rebuild your setup Give the PDF and the article below to Claude Code or Codex. Ask it to redesign your agent workflow around Jev. 2. Pick your most expensive workflow Find the agent task your team spends the most money running. Try rebuilding it in one evening. 3. Show the results Compare the before-and-after latency, token usage, and cost. Bring the numbers to your manager. One evening of harness engineering could save your team a serious amount of money and give you a system most teams haven’t even thought to build. https://x.com/AnnatarXBT/status/2108868206358085779/video/1
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