Fix KeyError command

[rvernica]

Fix:

tiny-agents run agent.json

An unexpected error occurred: 'command'
Traceback (most recent call last):
  File "/home/vernica/proj/prep/huggingface-mcp/.venv/lib/python3.13/site-packages/huggingface_hub/inference/_mcp/cli.py", line 152, in 
run_agent
    await agent.load_tools()
  File "/home/vernica/proj/prep/huggingface-mcp/.venv/lib/python3.13/site-packages/huggingface_hub/inference/_mcp/agent.py", line 58, in 
load_tools
    await self.add_mcp_server(**cfg)
  File "/home/vernica/proj/prep/huggingface-mcp/.venv/lib/python3.13/site-packages/huggingface_hub/inference/_mcp/mcp_client.py", line 162, 
in add_mcp_server
    logger.info(f"Connecting to stdio MCP server with command: {params['command']} {params.get('args', [])}")
                                                                ~~~~~~^^^^^^^^^^^
KeyError: 'command'


An unexpected error occurred: 'command'