fast-agent --url http://localhost:3001/mcp?mix=hub_repo_details_readme --auth $HF_TOKEN -m "can you tell me details about these models: microsoft/VibeVoice-1.5B, 'openai/gpt-oss-120b', xai-org/grok-2, NousResearch/Hermes-4-70B" --model groq.openai/gpt-oss-20b