Utilizing a library of brand-approved assets, I developed a framework to serve as a comprehensive reference for a custom Gemini Gem. This system translates concise descriptions into high-fidelity image prompts that maintain strict adherence to eDreams’ brand guidelines. I established a robust tagging taxonomy that provides the AI with the context required to meet the marketing requirements of eDreamsODIGEO and its sub-brands. This enables simple inputs to be expanded into sophisticated prompts optimized for Midjourney, resulting in realistic and brand-compliant visual assets. By streamlining the prompt engineering process, this framework accelerated production cycles and equalized the technical execution of AI-driven creative tasks across the team.