Default agent keeps spinnig up subagents with expensive models, eating all th...

Default agent keeps spinnig up subagents with expensive models, eating all the credits in minutes.

Adding copilot-instructions.md won't prevent it.

I don't see any setting to turn this off, either.

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| Field | Value |
| --- | --- |
| App version | 1.1.12 |
| OS | Windows 10.0.26100 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 9 |

Reproduce the behavior in the /chat path on app version 1.1.12 using the reported Windows environment, and inspect whether copilot-instructions.md affects subagent creation. Clarify the intended control for disabling automatic expensive-model subagents; done means the default agent no longer starts them unexpectedly or provides a usable setting to prevent it.

Written by the indexing model from the issue text.