Device Context Protocol: A Compact, Safety-First Architecture for LLM-Driven Control of Constrained Devices
Large language models are increasingly used as orchestrators of external tools via the Model Context Protocol (MCP), but MCP is built for software services with megabytes of memory and does not descend to the microcontrollers that dominate the long tail of physical devices. Recent work (IoT-MCP) ports MCP to edge gateways at 74 KB peak memory; this still excludes the smallest commodity MCUs and, critically, does not address the safety problem of giving an unreliable caller (an LLM that may hallucinate or be prompt-injected) direct control of physical hardware. We present the Device Context Protocol (DCP): a sub-50-byte typical frame (6-byte header + CBOR payload + optional 16-byte HMAC), ...
| Authors | Dongxu Yang |
|---|---|
| Primary category | cs.NI |
| Published | 24 May 2026 |
| Last updated at source | 24 May 2026 |
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