GitHub Copilot CLI returns 403 Forbidden after successful login (MCP disabled, Copilot Pro active)

[MrProLopstar]

Describe the bug

Hello GitHub Support,

Account: MrProLopstar. Copilot Pro (Student) is Active.

The new copilot CLI (0.0.330) authenticates (OAuth /login OK),
but model calls return HTTP 403. MCP is disabled on my side, yet I still see 403
when the CLI attempts to reach the GitHub MCP endpoint.

Environment:

• Node: v22.10.0
• Copilot CLI: 0.0.330
• MCP disabled (COPILOT_DISABLE_MCP=1), /mcp show is empty
• Cache reset: %USERPROFILE%.copilot
• Tried models: claude-sonnet-4 and gpt-5
• Also tried classic PAT with copilot scope via GH_TOKEN/GITHUB_TOKEN

Latest logs show:

• 2025-09-30 20:35:11 UTC
• X-GitHub-Request-ID: AF0F:272D6F:FB31F:1328CD:68DC3F1B
• Error: POST https://api.individual.githubcopilot.com/mcp/readonly → 403 forbidden: access denied

It looks like my account is missing the entitlement/flag for the new Copilot CLI Chat/Models.
Could you please enable it for my account?

Thank you!

Affected version

No response

Steps to reproduce the behavior

No response

Expected behavior

No response

Additional context

No response

[MrProLopstar]

[Copilot CLI]
● Connected to GitHub MCP Server
● Logged in as user: MrProLopstar

[Me]

say ok

[Copilot]
× Model call failed: "403 403 forbidden: access denied\n"
× Authorization error, you may need to run /login