[BUG] Getting request too large error during normal usage, cannot submit feedback, session blocked (no compaction, short session)

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?

During normal usage, Claude Code is getting blocked on reading small files (46 line / 2KB TS file). Happened earlier while reading screenshots as well. Other issues mention multi-day compaction. I have auto-compact disabled. I use a custom context restoration that just reviews git history, and clear session after every 1-2 hour session.

• Using 330K tokens / 1M (~33% context)
• Cannot submit feedback either, cannot submit logs
• Session is blocked without recovery

What Should Happen?

This is normal usage pattern without auto-compaction and short sessions. Claude should continue running, and feedback tool should not be blocked.

Error Messages/Logs

Request too large (max 20MB). Double press esc to go back and try with a smaller file.

Steps to Reproduce

• At 330K tokens / 1M (~33% context)
• Reading 46 LOC / 2KB file

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.80

Claude Code Version

2.1.81

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

_No response_