Definition ∞ A reactive protocol is a set of rules or procedures within a blockchain or decentralized system designed to automatically adjust its behavior in response to specific network conditions or external events. These protocols often incorporate dynamic parameters that modify operations such as transaction fees, block rewards, or consensus mechanisms. This adaptability aims to maintain network stability and efficiency under varying loads or market states.
Context ∞ The implementation and performance of reactive protocols are often central to discussions about blockchain scalability and resilience in crypto news. Debates frequently address how effectively these systems can respond to network congestion or sudden market shifts. Understanding a protocol’s reactive capabilities is important for assessing its long-term viability and operational robustness.