AI Response Studio

Inspiration

Reddit is filled with nuanced, thoughtful conversations — but not everyone knows how to jump in. We wanted to create a tool that helps users participate more meaningfully by generating helpful, witty, or supportive replies using AI. We imagined a Reddit-native experience that respects context, adds value, and makes engagement easier — especially for lurkers or new users.

What it does

Summarize Reddit posts using GPT Generate three types of replies: Witty, Balanced, Supportive Provide in-depth research and feedback with optional sources Let users copy AI-generated replies to clipboard

How we built it

Devvit SDK for Reddit app creation and UI OpenAI GPT-3.5 Turbo API for summarization, reply generation, and research Custom forms for UI modals that allow copy or reuse

Challenges we ran into

Devvit API inconsistencies with hooks like useWebView and addWebView Limited form flexibility (e.g., dynamic fields, read-only + editable toggling) Debugging postId formats and figuring out t3_ vs raw ID Context loss during form submission (e.g., context.reddit being undefined) Posting comments programmatically proved unstable, so we pivoted to a clipboard-based interaction

Accomplishments that we're proud of

A smooth, working GPT-powered post companion that feels native to Reddit Successfully handling GPT formatting, Markdown, and post context Modular prompt design that includes summarization, insight, feedback, and citations One-click UX: no setup, no friction

What we learned

How to develop and deploy a Devvit app from scratch How to handle post events, context, and Reddit API permissions How to iterate fast through multiple UI paradigms (toast, modal, webview) How to craft precise GPT prompts for utility, not just creativity

What's next for AI Response Studio

Enable post replies again (when Devvit supports it cleanly) Add tone customization: sarcastic, expert, funny, etc. Store all summaries for future analytics Add a sidebar history of recent AI insights Let users vote on or suggest better AI replies

Built With

• devvit
• markdown
• node.js
• openai
• typescript