Streamlined Interagent Protocol (Slipstream): Semantic Quantization for Efficient Multi-Agent Coordination

As multi-agent LLM systems scale, coordination bandwidth becomes a primary cost driver. This paper introduces Slipstream, a protocol that performs semantic quantization: mapping free-form messages onto a shared Universal Concept Reference (UCR) and transmitting compact mnemonic anchors. Results show 82% token reduction (41.9 → 7.4 tokens average) while maintaining semantic fidelity. Reference implementation available: pip install slipcore