[BUG] Subagent planning is impossible.

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?

As your subject to "advise you on something and ask questions". It will ask questions. The answers come back like this,

I have some questions for you

1. Do you like poop?
2. Am I poop?

Should I proceed?
1. Foo
2. Bar
3. No

If you go down to "No" it'll say "press tab to write more"

Now let's say you're writing more but you want to write _"No. 1, but I don't like poo, and 2, you're not poop"_

The second you type <tab>1 the subject accepts the first option and moves on. Even though you were typing the explanation in the third option.

What Should Happen?

When typing after tab, nothing should be significant except Enter.

Error Messages/Logs

Steps to Reproduce

As your subject to "advise you on something and ask questions". It will ask questions. The answers come back like this,

I have some questions for you

1. Do you like poop?
2. Am I poop?

Should I proceed?
1. Foo
2. Bar
3. No

If you go down to "No" it'll say "press tab to write more"

Now let's say you're writing more but you want to write _"No. 1, but I don't like poo, and 2, you're not poop"_

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.9

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_