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JoacoMarc/jev-harness-router

Answers four routing questions about an agent turn, model tier, effort, tools and skill, in a single Jev call under 350ms with a hard deadline, and ships a Claude Agent SDK adapter.

npm run route: six turns routed live, with the reasons for each decision
Image from github.com

JoacoMarc/jev-harness-router on GitHub

Stars
1
Forks
1
Language
TypeScript
License
MIT
Last push
21 Sep 2026

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How it uses Jev

  // of this two-word one changed nothing, also four out of four.
  const warm = { state: "warmup", questions: { warm: noul("Is this a warmup request?") } };
  const options = { timeout: 10_000, retry: { maxRetries: 0 } } as const;
  await this.getClient().systemOne(warm, options);
  await this.getClient().systemOne(warm, options);
  return true;
} catch {
  // Warming is best-effort. A failure here says nothing about whether routing works.
  return false;

View in src/jev.ts

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