Tab Oscillating Blocker

Tab Oscillating Blocker is a local-first focus-assistance Chrome extension. It detects whether a user is frequently switching tabs within a short period. When the switching behavior exceeds a local threshold, the extension opens a full-screen breathing reset page on the current tab, interrupting unconscious attention fluctuations with a short countdown and breathing guidance. All settings, ignored sites, work periods, and reset statistics are stored on the user's local machine in `chrome.storage.local`. No account is required, and no data is uploaded to a server. Core Features: - Detects frequent tab switching using a sliding time window. - Opens a full-screen breathing reset page upon triggering. - Provides today's reset count and the local trend for the past 7 days. - Supports adjusting the trigger count, time window, and breathing lock duration. - Supports work period control. - Supports an ignored site list to avoid accidentally blocking frequently used work tools or document sites. - Minimal permissions: Only uses storage, tabs, and activeTab. Applicable Scenarios: - Reduce unconscious switching between work and distraction tabs. - Add a brief, clear mindfulness pause before attention wanes. - See your tab-switching patterns without relying on cloud tracking.