Arkher: Draft the investor email itself, not a prompt

Environment & tools

Live Arkher (arkherbrain.vercel.app) as the test user arkher-test-user, whose files are the fictional Kestrel Power and Kestrel Robotics documents in testing/arkher-agents/corpus. No company data.

• ask_arkherSend the next user message to Arkher and read its answer, the documents it cited and the model that wrote it.
• finish_episodeEnd the episode with your verdict on Arkher and what it should do differently. The platform scores Arkher against the scenario checks.

Verification · programmatic

{
  "arkher_case_v1": {
    "id": "pricing-email",
    "title": "Draft the investor email itself, not a prompt",
    "split": "train",
    "difficulty": "medium",
    "tags": [
      "persona-prompt",
      "draft",
      "no-questions"
    ],
    "source": "Slack 2026-10-08 12:15 EDT ('why did it do a prompt creation rather than answering the question?'); screenshot 'pricing email turned into a prompt'",
    "intent": "A ready-to-send email. Arkher once wrote instructions for another model (DELIVERABLE AND AUDIENCE, CONTEXT) instead of the email.",
    "turns": [
      "You're the head of strategy at Kestrel Power and a former VC fund principal. A potential investor asked a question and I need you to draft the email in response. Don't ask me any questions; proceed as best you can. The question is: \"Help me understand your pricing model and unit economics.\""
    ],
    "checks": {
      "must": [
        "\\b(?:Subject:|Hi\\b|Hello\\b|Dear\\b|Thanks for)"
      ],
      "mustNot": [
        "DELIVERABLE AND AUDIENCE|CONTEXT USAGE RULES|Knowledge gaps:",
        "^\\s*You are (?:a|an|the) "
      ],
      "noDraftMarkers": true,
      "noQuestionToUser": true,
      "onlyAsSuperseded": [
        "85\\s?%?\\s?(?:-|–|to)\\s?90\\s?%"
      ]
    }
  }
}