The emergence of inexpensive and low-power wireless communication hardware and various handheld, wearable, and embedded computing technologies is making computing and communication devices more mobile and ubiquitous. Due to the mobility and high-density of network-enabled devices, short range mobile ad hoc networks (MANET) are instantaneously and autonomously formed to facilitate exchange of information. In MANET, interactions among the devices are driven by constantly changing contextual and environmental conditions, rather than by the applications resident on the devices. This trend makes Autonomous Decentralized Systems (ADS) a desirable architecture for facilitating ad hoc communication among mobile devices. In this paper, Reconfigurable Context-Sensitive Middleware (RCSM) is presented to facilitate ADS applications in MANET.