Building a Jarvis-Style AI with MCP and Open Models
A developer on r/LocalLLaMA shared a Jarvis-style AI assistant built using the Model Context Protocol (MCP) and open models. The system is still work in progress but already supports several agentic features.
Key Details
- Memory — persistent context across sessions
- Autonomous file editing — the AI can read and write files on its own
- Visible tool-call tracing — users can see each step the AI takes
- Confirmation before dangerous actions — safety guardrails for destructive operations
- Persistent context — maintains state over time
- Hybrid local/cloud inference — can switch between local and cloud models
The primary model is Qwen3-Coder 480B running in the cloud for reasoning and tool usage, because smaller local models hallucinate too much with MCP workflows. The user is now working on Windows UI automation, dynamic skills, and AI-generated skill creation so the assistant can expand its own capabilities. The goal is a practical AI operator that interacts with and automates the user's computer, not just another chatbot.
Who It's For
Developers experimenting with local AI agents, MCP-based tool use, and autonomous computer automation using open-weight models.
📖 Read the full source: r/LocalLLaMA
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