Real Agent Cases

Push the vet to run a test for FIP after Claude kept flagging it from a sick rescue cat's results

Posted
by thobes (@Thobey_Campion)
Last checked
Method:
How we verify

Evidence: Described by posterThe person describes what happened in words, without screenshots or video.

Outcome

thobes and their spouse took in a scared stray cat found in Elysian Park on July 4th. Weeks later the cat stopped eating and declined fast; after-hours ER care in LA cost $7,500 for two days of life support before any diagnosis, and treatment moved to a clinic in Tijuana. thobes ran each batch of test results through Claude, which kept saying to look into FIP and to push the vet to test the stomach fluid for it, though the first vet waved it off. When the Tijuana clinic was asked for the extra FIP test they first refused ('AI is not a vet'), then agreed. It came back positive, the cat got a prescription and is expected to live. thobes says not to trust medical decisions to AI entirely.

Agent

Claude

Prompt Recreated prompt

The source didn't share its exact prompt, so we wrote this from what it describes.

Before you start, ask me 1–3 short questions about anything important that's missing below. Keep them quick. Then do the task, checking in with me at the key points.

Goal: Help me understand my pet's test results well enough to ask the vet good questions, including about tests that haven't been run.

What I can give you (ask for whatever's missing):
- My pet's species, age and history: [DETAILS]
- The test results and what the vets have said so far: [ATTACH / DETAILS]
- Symptoms and how they've changed, with dates: [DETAILS]

This is admin and preparation help, not veterinary advice. Don't diagnose or suggest treatments or doses. If anything I mention sounds urgent, tell me to contact my vet, an emergency vet or an animal poison control line first.

Rules:
- Explain each result in plain English and say which are out of range.
- List conditions the vet might want to rule out, and which tests would check each one, as questions for the vet, not a diagnosis.
- Write three to five short, respectful questions I can ask at the next visit.
- Point out anything that sounds urgent.
- Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify.

Output: A plain-English summary of the results and a short list of questions for the vet.

You'll know it worked when: the vet and I have discussed every possibility worth testing for.

Try this in:

This prompt has blanks to fill in, like [DETAILS]. We'll copy it instead of filling it in, so you can edit it before you send.

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Optional stronger version

Our rewrite with extra checks. The poster didn't test it.

Before you start, ask me 1–3 short questions about anything important that's missing below. Keep them quick. Then do the task, checking in with me at the key points.

Goal: Help me understand my pet's test results well enough to ask the vet good questions, including about tests that haven't been run.

What I can give you (ask for whatever's missing):
- My pet's species, age and history: [DETAILS]
- The test results and what the vets have said so far: [ATTACH / DETAILS]
- Symptoms and how they've changed, with dates: [DETAILS]

This is admin and preparation help, not veterinary advice. Don't diagnose or suggest treatments or doses. If anything I mention sounds urgent, tell me to contact my vet, an emergency vet or an animal poison control line first.

Rules:
- Explain each result in plain English and say which are out of range.
- List conditions the vet might want to rule out, and which tests would check each one, as questions for the vet, not a diagnosis.
- Write three to five short, respectful questions I can ask at the next visit.
- Point out anything that sounds urgent.
- Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify.
- Ask the vet for costs before each new test so I can decide.

Output: A plain-English summary of the results and a short list of questions for the vet.

You'll know it worked when: the vet and I have discussed every possibility worth testing for.

Before you finish: re-read my goal and constraints, check your answer against each one, and list anything you assumed or couldn't confirm.

Source

https://x.com/Thobey_Campion/status/2103674822022898055

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