In use daily
SC Console
Problem
Working inside Amazon Seller Central means repeating the same multi-step workflows endlessly. Amazon's own tooling does not automate them, and external tools cannot reach inside the Seller Central UI.
Constraints
Chrome Manifest V3 restricts how extensions execute and persist work: no long-lived background pages, strict content security, and a host page (Seller Central) that the extension must never break.
What I Built
A Chrome MV3 extension with a shadow-DOM-isolated panel injected into Seller Central, context-aware actions that know what page they are on, and a service worker state machine that carries multi-step workflows across page loads. Every action is recorded to an event-sourced ledger so there is a complete history of what the tool did and when.
Outcome
Repetitive Seller Central workflows became one-click actions, starting with bulk quantity updates, with an audit trail for everything the extension touches.