Github Copilot for Business, failing to configure and use

[harkamals]

Describe the bug We are in corporate environment, using Copilot for Business subscriptions, not many features/models are enabled. Copilot in VScode IDE works fine, I am unable to use it with Goose CLI or the Desktop app

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To Reproduce Try to configure goose: goose configure --> I am able to perform github device auth flow. --> model listing fails.

Try to use goose: goose, fails (see screenshots)

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Expected behavior I should be able to chat with gpt-4o, this model is enabled for the organisation.

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Screenshots

Please provide the following information

• OS & Arch: MacOS
• Interface: UI / CLI
• Version: v1.14.0
• Extensions enabled: Computer Controller, Developer
• Provider & Model: gpt-4o

[SirStone]

I have a github Copilot Pro plan and the registration doesn't work for me either

using version 1.14.2

`$ goose configure

This will update your existing config files if you prefer, you can edit them directly at /home/davide/.config/goose

┌ goose-configure │ ◇ What would you like to configure? │ Configure Providers │ ◇ Which model provider should we use? │ GitHub Copilot │ ● GITHUB_COPILOT_TOKEN is already configured │
◇ Would you like to update this value? │ Yes │ ● Configuring GITHUB_COPILOT_TOKEN using OAuth device code flow... │
■ Failed to authenticate: Execution error: OAuth configuration not supported by this provider │
Error: OAuth authentication failed for GITHUB_COPILOT_TOKEN: Execution error: OAuth configuration not supported by this provider `

errors from the UI client too

[SirStone]

there's something really off somewhere. I've just run these steps:

1. from UI, configured a Tetrate account
2. from UI, deleted github copilot current configuration
3. from UI, noticed that I can't select any model from tetrate, list is empty and pasting a model results in no model
4. from terminal I start "goose configure" and selected "Tetrate Agent Router Service" to try reconfigure it
5. the cli guides me to ...connect to github copilot

[harkamals]

Today's update with a new proxy setting, i am able to move 1 bit forward, but not there yet!

` (.venv) >goose configure

This will update your existing config files if you prefer, you can edit them directly at /Users/redacted/.config/goose

┌ goose-configure │ ◇ What would you like to configure? │ Configure Providers │ ◇ Which model provider should we use? │ GitHub Copilot │ ● GITHUB_COPILOT_TOKEN is already configured │
◇ Would you like to update this value? │ Yes │ ● Configuring GITHUB_COPILOT_TOKEN using OAuth device code flow... │
◆ OAuth authentication completed successfully! │
◇ Model fetch complete │ └ Request failed: error decoding response body `

[michaelneale]

@harkamals @SirStone would you be able to share your config.yaml at all? (not sure if these things are related, don't know anything about copilot model serving

[michaelneale]

@blackgirlbytes do you you have access to copilot models to try this? And I think the oauth stuff (in GUI) is broken (or incomplete I should say which is slightly confusing - looking at that separately).

@harkamals not sure how to chase this down, as I connected it to what I have of copilot enterprise (not sure if that is the same as business) and it did list models, (I picked gpt-5 - I am lucky enough to see it in the list!). did the cli show you the link and do oauth correctly? (I am guessing by the screenshot - yes?).

One possibility is that it is hanging on to an old token - @harkamals did you have it working with goose previously? or never has worked (there may be limitations if the latter for some subscriptions).