Climate-smart agronomy represents a critical frontier in the global pursuit of sustainable and resilient agricultural systems. As climate variability intensifies, agronomic solutions must evolve to balance productivity, adaptation, and mitigation simultaneously. Empirical evidence shows that practices such as conservation agriculture, climate-resilient crop varieties, integrated nutrient and water management, and agroecological diversification significantly enhance the capacity of farming systems to withstand biotic and abiotic stresses. These practices have demonstrated improvements in soil health, water-use efficiency, carbon sequestration, and yield stability across diverse agroecological zones. Digital technologies including remote sensing, mobile advisories, and AI-driven modeling offer new dimensions of precision and responsiveness, bridging information gaps at scale. Despite this progress, challenges such as institutional fragmentation, unequal access to innovation, limited financing, and underdeveloped monitoring systems hinder full-scale implementation. Strengthening participatory research, especially with smallholders, Indigenous groups, and women farmers, is essential to ensure that innovations are inclusive, culturally appropriate, and scalable. Policy coherence across climate, agriculture, and rural development sectors remains pivotal in fostering systemic transformation. Integrating agronomic planning with National Adaptation Plans, emissions tracking, and climate finance mechanisms will enhance accountability and long-term impact. As the agronomy discipline moves toward a more climate-integrated paradigm, emphasis must be placed on transdisciplinary approaches, landscape-level planning, and equitable benefit-sharing. By closing research gaps and addressing socioeconomic barriers, climate-smart agronomy can become the foundation for both immediate adaptation and long-term sustainability. It serves not merely as a toolkit of technologies, but as a strategic vision for navigating complex climate-agriculture interactions while promoting food security, environmental stewardship, and social equity.