I'm Stasia, founder of Deck.
Deck is an AI teammate for busy operators, professionals, and teams that is constantly working in the background. You can email it, use it in the app, sign it up for services you use, email alerts/newsletters, or set it up to run recurring work. It can read project files, summarize messy context, generate or edit decks/memos/sheets, answer questions over your knowledge base, and proactively surface things that need attention.
Importantly, it doesn't require blanket inbox authorization to be effective and only emails you.
We made email a first-class interface because delegation already happens there and it's a decades old, hardened protocol. People forward a thread, CC someone, attach files, subscribe it to email alerts and newsletters and ask for help. We believe Deck fits that behavior instead of asking users to move work into another chat app. But the system underneath is shared with the web app: automations, workflows, project search, document editing, and integrations.
Happy to answer anything about how it works, the trust model, or what we're learning from early users.