mcp-oauth-debug

MCP OAuth compliance simulator — walks the exact path a real client would (unauthenticated probe → 401 challenge → discovery → registration → authorization → token exchange → MCP calls) and reports spec compliance at each step. Use when investigating auth failures, testing server compliance, or onboarding new OAuth MCP servers. Triggers on "debug oauth", "test oauth flow", "oauth compliance", "oauth-debug", "why is auth failing".