KeyPressCounter - Technical Summary KeyPressCounter is a lightweight Windows system tray utility built in C# (.NET 10.0) that monitors keyboard and mouse activity alongside real-time system performance metrics, designed to run silently in the background without recording keystroke content or transmitting data. The application provides comprehensive input tracking (keystroke/click counts, peak activity rates, inactivity detection) and performance monitoring (CPU, memory, disk I/O, network throughput) through a three-tab WinForms dashboard with 60-second rolling graphs, hardware information via WMI, and configurable activity logging with daily summaries. The architecture leverages SharpHook for global low-level input event hooking on background threads, System.Management for WMI-based hardware enumeration and Windows Performance Counters for real-time system metrics, and implements thread-safe counters with lock-protected increments to handle concurrent input events. Key design patterns include an ApplicationContext subclass managing tray integration and lifecycle, GDI+ anti-aliased graph rendering for historical data visualization, P/Invoke wrappers around GetLastInputInfo for idle detection, and JSON configuration persistence with Windows Registry synchronization for autostart capabilities. Notable features include idle-period filtering with configurable thresholds, single-instance enforcement, direct access to Windows system tools (Task Manager, Resource Monitor, Performance Monitor), and comprehensive logging at user-configurable intervals with automatic daily summary generation at midnight. The project targets individual users and productivity analysts seeking passive activity monitoring and system performance awareness without privacy concerns, with declining recent activity (3 commits in 90 days) suggesting maintenance mode rather than active development, though the codebase demonstrates professional separation of concerns and Windows-native integration patterns suitable for production desktop applications.