Unhandled Promise Rejection: Tool closeAllDiffTabs Not Found

Bug Description

This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason:
McpError: MCP error -32602: MCP error -32602: Tool closeAllDiffTabs not found
    at Mc1._onresponse (file:///Users/zer0cell/.nvm/versions/node/v22.12.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1358:20090)
    at _transport.onmessage (file:///Users/zer0cell/.nvm/versions/node/v22.12.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1358:17296)
    at X.client.transport.onmessage (file:///Users/zer0cell/.nvm/versions/node/v22.12.0/lib/node_modules/@anthropic-ai/claude-code/cl

I believe this happens in this order:

1. Claude Code uses VS Code integration to show a diff
2. The edit/update is rejected, and the diff window closed
3. I sit there, writing a prompt for 10 minutes
4. Submitting prompt causes Claude Code to attempt to close null diff tabs

Environment Info

• Platform: macos
• Terminal: vscode
• Version: 1.0.15
• Feedback ID: ecfa8c48-81d9-4dbd-a63a-c8ad1a3b4417