### Preflight Checklist - [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) 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? - v2.1.89, Opus 4.6 (1M context), Claude Max - Fresh conversation, not near any limit - Conversation history disappears while actively working, only

[BUG] Aggressive clearing of conversation history at ~2k tokens on Opus 4.6 (1M context) v2.1.89

Status Fixed / completed

Reported on v2.1.89

Maintainer reply None cached

Activity 6 comments · opened Apr 1, 2026 · closed Apr 2, 2026

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?

v2.1.89, Opus 4.6 (1M context), Claude Max
Fresh conversation, not near any limit
Conversation history disappears while actively working, only "Simmering" status visible
Screenshot shows ↓ 2.0k tokens — nowhere near the 1M limit (https://i.imgur.com/smV2vQB.png)
Possibly a regression of the fixes from v2.1.21 / v2.1.75 / v2.1.88

What Should Happen?

Conversation history should remain visible and scrollable for the entire session and not get auto cleared at ~2.0k tokens on a 1M context window.

Error Messages/Logs

No error messages displayed. No dedicated log files found in ~/.claude/. The compaction happens silently — conversation history simply disappears with no warning or error. The only indicator is the "Simmering" status showing ↓ 2.0k tokens.

Steps to Reproduce

Run Claude Code v2.1.89 (CLI in terminal)
Model: Opus 4.6 (1M context), Claude Max subscription
Platform: Linux (WSL2 on Windows)
Start a new conversation (claude or /clear)
Perform a multi-turn session with tool-heavy operations (running shell scripts with large output, spawning subagents, reading files)
After ~5-6 turns, conversation history above the current exchange is compacted away
The ↓ token counter shows ~2.0k tokens — far below the 1M context limit
Cannot scroll up to see earlier messages

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Unknown

Claude Code Version

2.1.89

Platform

Anthropic Console (Claude Max)

Operating System

Windows

Terminal/Shell

WSL (Windows Subsystem for Linux)

Additional Information

Last known working version was around 2.1.86. The issue started appearing recently around v2.1.88-2.1.89.

View original on GitHub ↗

6 Comments

jhobbs · 5 months ago

hitting this as well, similar setup except using terminator on a remote box via ssh. ubuntu desktop.

matheus-rodrigues-nephi · 5 months ago

seeing same thing on my side

AleSZanello · 5 months ago

Same issue in v2.1.89
I have a previous session on v2.1.87 and can't trigger this behavior, even the CTRL+O doesn't show anything

PurgeGame · 5 months ago

I also have this issue. Regularly clearing history without affecting context.

andrewkm · 5 months ago

https://github.com/anthropics/claude-code/issues/41814

github-actions[bot] · 4 months ago

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.