feat: stream stderr from MCP servers in real-time#9
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philschmid merged 1 commit intomainfrom Jan 12, 2026
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- Pipe stderr from stdio transports to capture server output - Always stream stderr immediately during connection (not just with MCP_DEBUG) - Include captured stderr in error messages when connection fails - Enables visibility of auth prompts before connection timeout This fixes the issue where auth URLs from MCP servers like google-workspace were only visible after the connection timed out, making it impossible to complete OAuth flows in time.
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This fixes the issue where auth URLs from MCP servers like google-workspace were only visible after the connection timed out, making it impossible to complete OAuth flows in time.