[BUG] View scrolls to top when context becomes large (possible compaction trigger)

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?

When the conversation context grows beyond a certain size, the terminal view automatically scrolls to the very top of the conversation instead of staying at the bottom
(latest message). This is very disruptive as I have to manually scroll back down every time.

What Should Happen?

The view should stay at the bottom, showing the latest messages.

Error Messages/Logs

The view scrolls to the very top of the conversation.

Steps to Reproduce

Steps to reproduce

1. Start a Claude Code session in Windows Terminal
2. Have a long conversation or work on a task that generates significant context
3. At some point (likely when context compaction is triggered), the view jumps to the top of the conversation

## Expected behavior

The view should stay at the bottom, showing the latest messages.

## Actual behavior

The view scrolls to the very top of the conversation.

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.81

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

## Environment

• OS: Windows 11 Pro (10.0.26200)
• Terminal: Windows Terminal
• Claude Code version: 2.1.81
• Shell: bash
• Model: claude-opus-4-6 (1M context)

## Additional context

This seems to correlate with context size rather than a specific action. It does not happen in short conversations. My guess is it's related to context compaction or TUI
re-rendering when the conversation history is large.