GitHub plugin OAuth fails: "Incompatible auth server"
Resolved 💬 3 comments Opened Jan 18, 2026 by heytcass Closed Jan 21, 2026
The GitHub plugin (github@claude-plugins-official) shows an OAuth authentication UI but immediately fails with:``SDK auth error: Error: Incompatible auth server: does not support dynamic client registration``
Steps to reproduce:
- Install the GitHub plugin via
/plugin - Attempt to authenticate3. Authentication fails immediately
Workaround: Set GITHUB_PERSONAL_ACCESS_TOKEN environment variable.
Environment:
- Claude Code: 2.1.12
- Platform: Linux
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