Codex skill generates Office docs from brand templates with AI

A developer known as u/Ambitious-Pie-7827 recently faced a common enterprise challenge: make AI consistently generate Office documents that adhere to pre-approved brand templates. The task required Codex to output DOCX, PPTX, and XLSX files with exact design elements, layouts, styles, and images—without approximation. Initial tests with Claude’s official document generation capabilities showed promise but lacked the reliability needed for production use. The developer then built a custom solution, leveraging AI to accelerate the three-day development process, and has now open-sourced it on GitHub.

Called 'brand-docs' (github.com/ferdinandobons/brand-docs), the solution works by first extracting the characteristics of a given template—fonts, colors, images, placeholders—then using Codex to generate new documents with variable content while strictly preserving those elements. This approach ensures that every generated file is on-brand without requiring manual recreation. The tool handles all three major Office formats and is designed for autonomous, repeatable document generation. For teams struggling to balance AI creativity with corporate brand compliance, this open-source project offers a practical, ready-to-use workflow.