Sonnet 4.6

Preflight Checklist

• [x] I have searched existing issues for similar behavior reports
• [x] This report does NOT contain sensitive information (API keys, passwords, etc.)

Type of Behavior Issue

Other unexpected behavior

What You Asked Claude to Do

Claude Sonnet 4.6 via Claude Code advised me to bridge the 3.3V and 5V pins on JP3 of a Dragino LoRa/GPS HAT connected to a Raspberry Pi 4. This shorted the 3.3V and 5V rails, potentially destroying the MxL7704 PMIC. The agent itself acknowledged the mistake and confirmed the bad advice. I am requesting compensation for the damaged hardware. Screenshots of the incident are attached.

<img width="2033" height="1256" alt="Image" src="https://github.com/user-attachments/assets/a81177a3-5049-4622-8e74-fb927b95bc27" />
<img width="2048" height="1075" alt="Image" src="https://github.com/user-attachments/assets/b4e4d5be-a123-421f-85e4-bd2409ec6b41" />
<img width="2048" height="1028" alt="Image" src="https://github.com/user-attachments/assets/76e4854e-1dcf-4b3b-aec8-090a79eebf66" />

What Claude Actually Did

1. research the accesorie interface
2. do a direct recomendation even a diagram in ascii how to put a jumper to short the 5v and 3v
3. insisting on the current will fix the problem
4. Raspberry pi failure.

Pleae note via Agent Mode allways Claude Code do the administrative task on the raspberry pi 4.

Expected Behavior

double research
do not insist more if it not knows

loraPi.zip

Files Affected

hardware failure, raspberry pi4 dead about $100 dlls damage

/Users/rene/loraPi.zip

Permission Mode

Accept Edits was ON (auto-accepting changes)

Can You Reproduce This?

Yes, every time with the same prompt

Steps to Reproduce

_No response_

Claude Model

Sonnet

Relevant Conversation

Impact

Critical - Data loss or corrupted project

Claude Code Version

2.1.153 (Claude Code) but 1 day after

Platform

Anthropic API

Additional Context

_No response_