SuperAI NEXT Hackathon 2026
Autonomous Guardian for Elderly Safety & Dignity
Echo is a proactive, always-on multi-agent ecosystem that detects risk before it becomes harm — built for the moment families need it most.
Team Common Sense Society — Bryan Ho & Vivian Lim
The Problem
The crisis no one is solving fast enough
Every 11 seconds, an older adult is treated in an emergency room — and most incidents were preventable. Existing solutions are reactive: they respond after harm, not before it.
The Solution
Echo: the ambient AI guardian
Echo is a proactive, always-on multi-agent system that detects risk before it becomes harm.
Zero friction
Monitors audio and video streams continuously — no button-pressing required.
Real-time detection
Identifies scams, physical hazards, and cognitive anomalies as they unfold.
Built for dignity
Assists without surveilling, acts without alarming.
Architecture
Three agents. One mission.
Echo's architecture separates observation, verification, and action so no single task ever blocks another. A 10-second Exa search never freezes a real-time safety feed.
Executive Agent
Observation
Watches continuous audio and video streams in real time, flagging social engineering language, falls, and cognitive anomalies the moment they appear.
Research Agent
Verification
Fires non-blocking Exa queries to retrieve live evidence — eliminating hallucinated safety advice before any action is taken.
Action Agent
Response
Alerts caregivers with cited sources via sub-100ms edge delivery, so families can review and respond remotely.
Decoupled design ensures continuous monitoring regardless of downstream processing time.
Technology
The stack was chosen, not bolted on
Every sponsor technology maps directly to a distinct stage of the agent lifecycle — from reasoning to sustainability.
AWS Bedrock
ReasoningReal-time multimodal inference over continuous audio/video streams.
Exa
VerificationRetrieves live evidence to eliminate hallucinated safety advice and research scams.
Vercel
DeliveryEdge Functions push caregiver alerts globally at sub-100ms latency.
Stripe
SustainabilitySubscription gates the Family Safety Network — core to the business model.
100% of code built with Kiro
From architecture to deployment, every line of Echo was written with Kiro.
Use Case Walkthrough
The scam detection flow
“The phone company wants my banking info to verify my account.”
- 01
Pattern flagged
Executive Agent flags social engineering language pattern in live audio.
- 02
Evidence retrieved
Research Agent fires non-blocking Exa query: "phone company verification scam 2026".
- 03
Caregiver alerted
Evidence confirmed — Action Agent alerts caregiver with cited sources.
- 04
Dignity intact
Caregiver reviews and responds remotely — senior is protected, dignity intact.
Video Demo
Elderly fall detection, end to end
Webcam → Bedrock → Exa → Vercel → Stripe — a live working demo hosted on AWS.
- 1
Tired hackathon participant turns on camera. Executive Agent detects nothing abnormal — no alerts fired.
- 2
Sample video plays of an elderly man walking and falling to the floor.
- 3
Executive Agent detects danger. Action Agent alerts the caregiver.
- 4
Webhook alert received by the family in real time.
Business Model
A business model built into the product
Stripe doesn't power a feature — it controls who receives caregiver alerts, making it foundational to Echo's access layer.
Guardian
$12/mo
- Real-time alerts
- Family dashboard
- 30-day history
Guardian Pro
Most popular$29/mo
- Smart device overrides
- Cognitive trend reports
- Priority escalation
Caregiver+
$49/mo
- Multi-senior households
- Care team access
- API integration
Stripe webhooks notify the Action Agent when subscriptions lapse — no senior left unmonitored.
Why Echo Wins
We didn't build a chatbot. We built a guardian.
Echo targets a $50B+ global eldercare market at the exact moment AI makes it solvable. 10,000 Americans turn 65 every day — the TAM is growing faster than the solution space.
Working demo
Webcam → Bedrock → Exa → Vercel → Stripe — end to end, live today.
Architectural clarity
Three agents, three responsibilities, zero blocking dependencies.
Platform vision
Caregiving is the first vertical — not the only one.
“Problem → Agent Decision → Tool Usage → Outcome.”
Echo makes that chain traceable, auditable, and real.