Build a provider-neutral browser extension that opens a persistent sidebar from the address bar, selected text, or current page. It should route each request to a user-selected AI provider and model, preserve preferences, include relevant page context with explicit permission, and display actionable error details when a request fails. The initial product should focus on dependable search, summarization, rewriting, citation capture, and side-by-side answer comparison rather than broad browser automation.

Users are actively retraining their search habits around direct AI answers, while competing browser integrations remain fragmented by provider, operating system, and browser configuration. The growing number of interchangeable AI models creates room for a neutral workflow layer that preserves user choice.