jcm-router

import { experimental_evaluate as evaluate } from 'ai';

const { answers } = await evaluate({
  model: 'typesafe-ai/jev',
  state,
  questions: {
    model: { type: 'choice', instructions: 'Which model tier fits the task in `latest_user_message`?',
      criteria: { what: 'The hardest and longest work: ambiguous goals that need research and planning before code, large refactors or migrations across a codebase, architecture with many tradeoffs, tasks where a mistake is very costly and hard to undo.', not_for: 'Anything with a clear, bounded scope, even if difficult (opus).' } },
    effort: { type: 'choice', instructions: 'How much deliberation does the task in `latest_user_message` need before answering or acting?',
      criteria: { what: 'Correctness dominates cost and time: security analysis, complex algorithms, large migrations, anything hard to undo.', not_for: 'Anything that is merely difficult (xhigh).' } },
    is_followup: { type: 'boolean', instructions: 'Is `latest_user_message` a short continuation of `previous_assistant_reply` that only makes sense given that reply: a confirmation (\'yes\', \'do it\', \'go ahead\', \'continue\'), a choice among options the assistant offered, or a small tweak to what was just proposed?' },
  },
});