SpookVault is a web-based prompt manager that helps users save, organize, and reuse AI prompts that actually work.
This project was vibe coded using Gemini 3 Pro inside Google AI Studio during the Kaggle hackathon by Google DeepMind. Since it was the Holiday season, the product was intentionally given a Halloween-themed identity, while solving a very real, everyday problem.
Although the project could not be submitted to the hackathon due to time constraints and my midterms, it evolved into a fully working application that is now actively used and open-sourced as a contribution to the community.
The app is currently deployed on Netlify and used regularly by me and my buddies.
Modern workflows rely heavily on LLMs like ChatGPT and Gemini.
But prompts — the most important part of working with LLMs are usually:
- scattered across chat history
- saved in sticky notes
- buried in Google Sheets or Docs
- lost in screenshots or random files
There is no single place to store personal prompts that already worked.
Public prompt libraries exist, but they solve discovery, not reuse.
SpookVault was built to solve my own problem first and that aligns with a well-known insight shared by Shark Tank judges:
People who solve their own problems well are often capable of solving much bigger problems.
With that mindset, I started building SpookVault.
Later, I had a conversation with Joana Carrasqueira, who serves as a Lead in Vibe Coding at Google DeepMind, and she encouraged me to share the app once it’s fully done.
SpookVault is a personal prompt vault similar in concept to a note-taking app like Notion, but focused only on prompts.
It allows users to:
- Save prompts privately
- Label them meaningfully
- Search and filter instantly
- Reuse prompts from anywhere
Each user sees only their own prompts.
There are no generic or public prompts by default.
- Code: Gemini 3 Pro
- Authentication: Supabase Auth
- Database: Supabase
- Frontend: Typescript & Vite
- Deployment: Netlify
The stack was chosen to support fast iteration, vibe coding, and real-world usability.
SpookVault is shared as an open-source project to:
- demonstrate practical vibe coding with modern AI tooling
- showcase a real-world problem-solving approach
- provide a foundation others can build upon
This repository represents my open-source contribution, and improvements, forks, and ideas are welcome.
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