[BUG] Interactive TUI freezes after trust prompt on Windows 11 Build 26200

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?

The interactive TUI completely freezes after selecting "Yes, I trust this folder" in the trust prompt. The process hangs indefinitely - no UI renders, no input is accepted, and no error messages appear.

claude -p "..." (non-interactive/print mode) works perfectly fine. Only the interactive TUI is affected.

What Should Happen?

After accepting the trust prompt, Claude Code should render the interactive chat interface and accept user input.

Error Messages/Logs

No error messages or logs are produced. The process simply hangs silently after the trust prompt.

Debug output ($env:DEBUG="*") shows 4 successful API calls during startup:
1. GET https://raw.githubusercontent.com/anthropics/claude-code/refs/heads/main/CHANGELOG.md
2. GET https://api.anthropic.com/api/oauth/account/settings
3. GET https://api.anthropic.com/api/claude_code_grove
4. GET https://api.anthropic.com/api/claude_code_penguin_mode

After these calls complete, nothing further happens.

Steps to Reproduce

1. Install Claude Code: npm install -g @anthropic-ai/claude-code@latest
2. Run claude in any directory
3. Select "1. Yes, I trust this folder" in the trust prompt
4. TUI freezes — no chat interface appears, no input possible

Tested and confirmed with:

• Fresh install (deleted entire .claude directory)
• Empty test directory (C:\temp\claude-test)
• All environment variables cleared
• Multiple terminals: PowerShell 7.5.4, CMD, VS Code integrated terminal
• Environment variables: NO_COLOR=1, TERM=dumb, CI=true
• Killed all zombie Claude processes between attempts

Non-interactive mode works fine:
claude -p "Hello" → responds correctly

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.70 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

Additional Information:

• Node.js: v22.15.0
• npm: 10.9.4
• The same Anthropic account works perfectly with the interactive TUI on Linux (Ubuntu, same Claude Code version on a remote server)
• Windows 11 Build 26200 is an Insider Preview build — this may be a ConPTY compatibility issue with the Ink terminal renderer
• claude -p with --continue and --resume flags works as a workaround