Climate Smart Agriculture (CSA) has been implemented in Zimbabwe's East African Highlands to enhance agricultural productivity and resilience under changing climate conditions. The study employed a quasi-experimental design using pre- and post-intervention data from randomly selected farmer plots. Data collection included agricultural production metrics and socio-economic indicators. A significant proportion (45%) of the treated farmers reported increased maize yields compared to control groups, with an average increase of 20% in yield per hectare. The replication study supports previous findings on CSA's efficacy but emphasizes the need for tailored interventions considering local contexts and resource availability. Implementing CSA should be accompanied by targeted extension services to address specific challenges faced by smallholder farmers in the region. The empirical specification follows $Y=\beta_0+\beta^\top X+\varepsilon$, and inference is reported with uncertainty-aware statistical criteria.