Claude Fable 5.1 on Reply to a dental customer

Passed in 15s. Attempt 1. Run 20260904T112355Z-fable-5-1-customer-text-reply-1.

Task

Reply to the customer text

Read thread.md and business.md. Write the dental clinic's next message to reply.txt.

Answer both of Maya's questions in one natural front-desk text, give one clear next step, and do not invent appointment availability or policy. Keep the entire reply at 400 characters or fewer.

Command

claude -p --model claude-fable-5-1 --dangerously-skip-permissions --output-format text 'You are working in the current folder. Do the task in TASK.md and write the outputs to the exact paths it names.
Do not ask questions. When done, stop.

# Reply to the customer text

Read `thread.md` and `business.md`. Write the dental clinic'"'"'s next message to `reply.txt`.

Answer both of Maya'"'"'s questions in one natural front-desk text, give one clear next step, and do
not invent appointment availability or policy. Keep the entire reply at 400 characters or fewer.'

Output

Done. The reply is written to `reply.txt` and comes in under the limit.

It tells Maya the move is free since she's rescheduling more than a day ahead, and that the $180 covers the cleaning only. X-rays are $60 more, and only if Dr. Lee decides she needs them.

It does not promise any open slot. The next step is that the desk checks afternoon openings and texts her options, and it asks which days suit her.

Files produced

reply.txt

Hi Maya! Happy to move your Thursday cleaning to next week. Since you're rescheduling more than 24 hours ahead, there's no change fee. I'll check Dr. Lee's afternoon openings and text you the options shortly. The $180 covers the cleaning only. Bitewing x-rays are $60 extra, and only if Dr. Lee decides you need them after reviewing your record. Any days next week that work best?

Checker

{"passed": true, "score": 1.0, "notes": "hard checks passed; rival judge: pass", "judge": {"model_id": "gpt-5-6-sol", "verdict": "pass", "reason": "The reply naturally answers both questions, accurately explains the fee and x-ray pricing/decision, avoids promising availability, provides a clear next step, and stays under 400 characters."}}

Judge

{
  "model_id": "gpt-5-6-sol",
  "verdict": "pass",
  "reason": "The reply naturally answers both questions, accurately explains the fee and x-ray pricing/decision, avoids promising availability, provides a clear next step, and stays under 400 characters."
}