Scaling a Multimodal AI Writing and Code Review Coach Across Classrooms and Research Labs with Gemini and Google Apps Script
In my previous article—Building a Multimodal, Suggestion-Based AI Writing Coach with Gemini and Google Docs—I introduced DocuMentor AI, an open-source Google Docs add-on built with Google Apps Script, the Google Docs API (v1), and the Gemini API (gemini-3.8-flash / gemini-4-argon). Instead of overwriting a writer's draft directly, DocuMentor AI uses the newest Google Docs API Suggestion & Comment Management features (WriteControl.writeMode = "SUGGEST", `addCommentRe





