[BUG] The workflow that had been working until now is no longer being followed

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Claude Code CLI has started ignoring parts of the "normal workflow" I've established so far.
It fails to correctly recognize the results returned by the tool and tries to proceed to the next step with a misunderstanding.
It's not a response that appears directly in the terminal, but rather something goes wrong while Claude is thinking, and it seems to fall into a delirium-like state.
Despite the correct judgment script being executed and presenting a normal result, Claude ignores that "mechanically returned accurate result" and insists on a non-existent "work result," marking the task as complete and trying to move on arbitrarily.
This clearly seems to have started happening after a recent update.

This is rapidly consuming more than 10 times the normal amount of tokens in a single turn by repeatedly mishandling the process, and my 5-hour rate limit is also being consumed at an abnormal rate.
My 7-day rate limit is scheduled to reset in a few hours, but if this problem isn't resolved soon, I won't be able to work properly next week.

Feedback ID: 0a1ebbe5-111a-4f45-a317-1844fc93b1a3

What Should Happen?

Claude should proceed as usual, following the established workflow, running the tools correctly, understanding the results, and moving forward with the work appropriately.

Error Messages/Logs

Steps to Reproduce

It happened immediately after I started one session.
It's unclear if it happens in other sessions.
I simply instructed the PM to start work based on the workflow I've been using for a long time, as I normally would.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.170

Claude Code Version

2.1.173

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_