Nitish developed a feature for the duneanalytics/spellbook repository that ensures accurate pricing for aTokens by mapping them to their underlying assets and integrating real-time price data from prices.usd. Using SQL and data engineering skills, Nitish implemented logic to derive aToken prices directly from authoritative sources, aligning trade price calculations with the true value of underlying assets. This approach reduces pricing risk and increases trust in aToken trades by ensuring that all price references are up to date and reliable. The work demonstrates a focused application of smart contract knowledge and data integration within a targeted, well-defined engineering scope.