My Role
AI product designer and full-stack engineer
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Interactive prototypeFlagship case study
Khan OS
AI Personal Operations System
Personal assistants often stop at chat instead of safely coordinating the tools, files, reminders, and actions behind a request.
Interactive preview
Full demoWhat I Built
Personal AI operating system that combines multimodal conversation, local utilities, reminders, alarms, calculations, and structured agent planning. It separates intent from execution, exposes tool permissions, latency, and cost, and keeps consequential actions inside an explicit approval flow.
Evidence
Working interface, documented system behavior, and implementation-level decisions.
Technical Architecture
From system input to explainable output.
The control gate is shown as a first-class stage, not an afterthought added around the workflow.
Technical Decisions
- Built a React 19 and TypeScript assistant shell with real-time voice interaction, streaming responses, and an orchestration layer that routes each request to the right capability.
- Implemented autonomous tool use for alarms, timers, reminders, and task capture, with the model deciding the tool and the runtime enforcing what it may call.
- Designed a glassmorphic interface with an animated Neural Sphere driven only by transform and opacity, keeping the animation off the layout path.
- Built with Vite for fast iteration and a small production bundle, keeping the interface responsive on modest hardware.
Security Considerations
- Gated every tool holding a write, exec, or network-egress scope behind explicit approval, so the agent cannot escalate its own privileges.
Outcome & Evidence
- Built a React 19 and TypeScript assistant shell with real-time voice interaction, streaming responses, and an orchestration layer that routes each request to the right capability.
React 19TypeScriptAI OrchestrationTailwind CSSViteAI AgentsTool OrchestrationNatural Language Processing
Working product
Try the interactive demo.
The product experience is part of this case study. Explore it here, reset its state, or switch viewport sizes without leaving the project page.
khan-os.zainkhalilkhan.com
Khan OS
Personal operations environment
Khan OSWorkspace6 updates
K
LOCAL RUNTIMEKHAN OS
PERSONAL OPERATIONS SYSTEM
ACTIVE SESSION
Good evening, Zain.
What would you like to get done?
K
System ready. I can manage time, alarms, reminders, and calculations locally.
Zain Khalil Khan
Client-side sandbox. State is in memory and nothing is sent to a server.
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