State management is crucial in modern web apps but becomes opaque as apps scale. Developers waste hours tracing state changes.
A browser extension that hooks into popular state libraries (Redux, Zustand) and shows a real-time visualization of state mutations with stack traces.
Freemium model - basic visualization free, time-travel debugging as paid feature. Agencies would pay for better debugging tools.
MVP could support just one state library. Expand based on demand.
Risk is framework churn - need to support emerging state solutions quickly.