default-mode-can-follow-plan-mode-in-the-same-thread.md

Default mode can follow plan mode in the same thread

Feature/Change Name

Composer collaboration mode changes send default explicitly so a thread can leave plan mode without opening a new chat.

Prerequisites/Setup

1. Dev server running at http://127.0.0.1:4173
2. A Codex account/session with both Default and Plan collaboration modes available
3. A project folder selected for a new or existing thread

Steps

1. Select Plan mode in the composer
2. Send a prompt asking Codex to create a plan
3. After the turn completes, switch the composer back to Default mode
4. Send a follow-up prompt asking Codex to implement the plan in the same thread
5. Repeat the Default follow-up once more in the same thread

Expected Results

• The implementation prompts run in Default mode instead of staying in Plan mode
• The thread remains usable without opening a new chat
• The composer selection and the backend turn mode stay aligned across consecutive turns

Rollback/Cleanup

• Archive the test thread if it was created only for verification

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