Harness Manager

Harness Manager is a native Mac app for managing your AI coding tools, skills, MCPs, and model configurations in one place. It provides a visual interface for comparing model performance, organizing coding agent skills and tools, managing MCP server connections, and tracking which configurations work best for different tasks. The app runs entirely local on macOS 14 and later, supporting both Apple silicon and Intel Macs. It is free and open source under the Apache 2.0 license. The current release is an early preview that is not yet notarized. Built by Juan Sebastian Solano.