[MODEL] claude got really stupid again 1/27/26

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

Claude modified files I didn't ask it to modify

What You Asked Claude to Do

Claude forgets everything. ignores direct commands. cannot follow instructions. thrashing.

something you all changed in the last 48 hours made claude fucking stupid

What Claude Actually Did

<img width="1687" height="530" alt="Image" src="https://github.com/user-attachments/assets/2e59c641-bccf-44bf-b149-90cd5da5319a" />

Expected Behavior

it should be smarter like it was before and follow instructions and remember things

Files Affected

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

Opus

Relevant Conversation

Impact

Critical - Data loss or corrupted project

Claude Code Version

2.1.19

Platform

Anthropic API

Additional Context

_No response_