01
The concept
PromptVault is a Chrome extension that acts as a secure vault for your AI prompts — save any prompt in one click, and AI automatically categorizes, tags, and organizes it into a searchable library. Think 1Password, but instead of credentials, you're storing the prompts that make you productive across ChatGPT, Claude, Gemini, and every other AI tool.
02
Where it stands
The archived incubator verdict was BUILDIT. That is an internal research signal, not a current market claim.