mcp-async-error-handling-when-an-async-context-manager-e-g-stdio-client-ins-5ec07225

THEN Wrap the async context manager lifecycle (e.g., stdio_client) in a try-except block to capture and log the original exception before it is replaced by the cancel scope error. Alternatively, ensure AsyncExitStack is properly closed in all code paths to prevent the overshadowing RuntimeError.

# Instead of relying on async context manager exit, explicitly handle exceptions:
# async with client as session:
#     try:
#         yield session
#     except Exception as e:
#         logger.error('Original error: %s', e)
#         raise
# Then ensure cancel scope is only exited in the same task.