This report sets out the findings of the technical development work completed as part of the Use Cases for Generative AI in Education project, commissioned by the Department for Education (DfE) in September 2023. It has been published alongside the User Research Report, which sets out the findings from the ongoing user engagement activity conducted as part of this project. As part of exploratory work by DfE into the use of Generative AI within education, Faculty has built a bespoke AI-powered tool to demonstrate the potential of using Large Language Models (LLMs) for a specific use case. The tool is a proof of concept (PoC), limited to just the evaluation of Year 4 Literacy work, however, its design acts as a good approximation for other bespoke or open-source tooling that an institution could feasibly set up for its staff or pupils.