Cislunar space is becoming a working environment — logistics runs, relay constellations, survey craft — before any authority exists to deconflict it. Radar coverage past GEO is thin, ephemeris sharing is voluntary, and the coordination mechanisms are borrowed from an era of two spacefaring states.
Rules before rescue
The first serious cislunar incident will generate calls for a regime within weeks. Designing one now, while the traffic is still light, is cheaper than legislating from a wreck.