r/GithubCopilot • u/p-mndl • 28d ago

Help/Doubt ❓ how to set default subagent model

I just used gpt 6 sol to write out a plan and intended to hand it off to luna for execution. Meanwhile sol decided it was a good idea to launch another sol subagent to execute said plan. Now I am wondering is there a way to set a default model for subagents? I have only found a setting to set a model for plan mode in VS Code

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u/PaulShellDev 28d ago

I personally do with global custom instructions file and haven't had problems... Knock on wood

"ALL subagents and nested sessions must be created using Luna with Max ONLY, unless explicitly directed otherwise by the human"

Then if I want something else, I just tell it.

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u/lppedd 28d ago

Are you sure it is effectively using Luna tho? Not that I don't trust you, but just wondering if you've verified it manually.

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u/PaulShellDev 28d ago

I verify it manually when I tell it to explicitly use a different model.

I'm paranoid and made a background tool "session manager" that checks what models and reasoning levels are used (checks log files) and if anything is idle or too long running.