AI Personal Assistant: Design and Technical Documentation of a Browser-Based Planning, Scheduling, and Communication Assistant with User-Controlled Gmail and Calendar Integration

Personal information management—tasks, calendars, reminders, email, travel, and meetings—is fragmented across applications, and most AI assistants that unify it do so by holding the user's accounts and data on a vendor's servers. This paper describes the design and technical implementation of AI Personal Assistant, a free browser-based planning and communication assistant published by AI Verse. The application provides a daily briefing, a time-blocked day planner, a calendar with conflict detection and free-slot search, a prioritized task list, timed reminders and recurring important dates, a travel and event planner, a Gmail inbox triage and reply-drafting workspace, tools for writing, polishing, and translating messages, and a meeting-summary tool. A natural-language command bar converts requests such as “remind me to call the dentist tomorrow at 3” into structured actions that can be undone. Core data structures, scheduling arithmetic, the reminder engine, and conflict and free-time detection are deterministic and run on the device; language-model features run on a provider the user selects (a free hosted service, an AIV key, Groq, any OpenAI-compatible API, a local model, or an in-browser model). Optional Gmail and Google Calendar integration uses a user-supplied OAuth client identifier, so that tokens are held only in the browser; the application reads the 25 most recent inbox messages, saves replies as drafts, and never sends email on its own. Data are stored locally in the browser. The paper documents the architecture, algorithms, features, and a step-by-step tutorial, and discusses limitations and safeguards. No formal evaluation of time savings, scheduling quality, triage accuracy, summarization fidelity, or user satisfaction has been conducted; the benefits described are proposed rather than demonstrated.