Change to build agent when answering questions in plan mode

[escorponox]

Description

When I'm in plan mode and questions are asked by the agent (with several questions and options) I'm forced to submit another prompt with plan agent. I'm not able to answer questions and send them directly to build agent, event with ctrl+x a.

Here I'm not able to answer and go directly to build agent

[github-actions]

This issue doesn't fully meet our contributing guidelines.

What needs to be fixed:

• Steps to reproduce are missing ("No response") — please describe the exact steps to trigger the issue
• OpenCode version is missing — please include your version (run opencode --version)
• Operating System and Terminal are missing — these help narrow down platform-specific behavior

Please edit this issue to address the above within 2 hours, or it will be automatically closed.

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This issue might be a duplicate of existing issues. Please check:

• Blocked TAB switching during predefined answer selection and logical inconsistency in Plan Mode prompts #8867: Blocked TAB switching during predefined answer selection and logical inconsistency in Plan Mode prompts — describes the same core problem of being unable to switch to Build mode when the agent presents questions/options in Plan Mode
• When the plan is approved, it does not automatically switch to Build mode. #15231: When the plan is approved, it does not automatically switch to Build mode — related plan mode / agent switching issue

For keybind-related issues (you mentioned ctrl+x a), please also check our pinned keybinds documentation: #4997

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

Thanks for updating the issue! It now includes a clear description of the problem and a helpful screenshot. Everything looks good.