Harness Manager
Claim this toolUnified workspace for managing all your AI development tools
Free, no paid tierVisit WebsiteFreeVisit Website
Tracked since2026
The Bottom Line
- Price
- Free, no paid tier. Compare plans
Key facts
- Unified Mac app to manage all your AI coding tools, MCP servers, and skills in one place.
- Discover new tools and compare model performance across coding, design, and reasoning benchmarks.
- Free and open-source (Apache 2.0) with a simple drag-and-drop installation.
Pros
- Free and open-source with no paid tiers or hidden costs
- Consolidates multiple AI tool management tasks into one native Mac app
- Includes model benchmarks and rankings to help choose the right tool for the job
Cons
- Mac-only (requires a recent macOS version), no Windows or Linux support
- Early preview build is not yet notarized, requiring manual approval on first launch
- Limited to AI coding tools and MCP ecosystem, not a general-purpose tool manager
What is Harness Manager?
Harness Manager is a free and open-source Mac application that provides a unified workspace for managing your AI development tools. It automatically detects installed tools like Claude Code, Codex, Gemini CLI, Cursor, and others, displaying their versions, running processes, and available updates. The app also lets you browse and discover MCP servers, reusable skills, and harnesses (tool configurations) by popularity, helping you find new additions to your workflow. Additionally, it includes model comparison features with benchmarks across coding, design, reasoning, and other categories, sourced from Modelgrep. All provider configurations, MCP connections, and running processes are visible in one place, giving you full visibility into your AI stack. The app is designed for developers who use multiple AI coding assistants and want to keep everything organized without juggling multiple terminals or documentation pages.
Key Features
- Workspace view showing all installed AI tools, versions, and running processes
- Update management with version comparison and review-before-run workflow
- Browse and discover harnesses, MCP servers, and skills by popularity
- Model comparison with 31 ranking collections and 7 comparison metrics
- Provider configuration display alongside MCP servers and skills
- Process monitoring showing what's running and where
- Harness Briefing feed with publisher news, community finds, and official releases
- Supports Apple Silicon and Intel Macs running macOS 14 or later
Pricing
Free
Harness Manager is completely free to use with no hidden costs.
Reviews
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Harness Manager FAQ
How does Harness Manager help developers who switch between multiple AI coding assistants?
It detects installed tools like Claude Code, Codex, Gemini CLI, Cursor, and others, displaying their versions, running processes, and available updates. All provider configurations, MCP connections, and running processes are visible in one place, so you can organize everything without juggling multiple terminals. It also lets you browse and discover MCP servers and reusable skills.
How does Harness Manager differ from GitHub Copilot?
Harness Manager is a unified workspace for managing AI development tools, not an AI assistant that writes code. It automatically detects installed tools like Claude Code, Codex, and Cursor and shows their versions, processes, and updates. GitHub Copilot is listed as a direct competitor, but Harness Manager focuses on consolidating tool management rather than providing code suggestions.
Which platforms does Harness Manager support?
Harness Manager is a Mac-only application and requires a recent macOS version, with no Windows or Linux support. The early preview build is not yet notarized, so you must manually approve it on first launch. It is also limited to AI coding tools and the MCP ecosystem, so it is not a general-purpose tool manager.
What kind of user benefits most from Harness Manager?
Developers who use multiple AI coding assistants and want to keep everything organized benefit most. It is designed for people who want to avoid juggling multiple terminals or documentation pages. The app provides full visibility into your AI stack with provider configurations, MCP connections, and running processes in one place.
How is Harness Manager priced?
Harness Manager is free to use with no paid plan required. It is free and open-source with no paid tiers or hidden costs. There is no cost to access its features, including tool detection, MCP discovery, and model benchmarks.
How does Harness Manager help you choose between AI models?
It includes model comparison features with benchmarks across coding, design, reasoning, and other categories, sourced from Modelgrep. These benchmarks and rankings help you choose the right tool for the job. The comparison capability is part of its unified workspace alongside your installed tools.
Which AI development tools does Harness Manager automatically detect?
It automatically detects installed tools like Claude Code, Codex, Gemini CLI, Cursor, and others. It displays their versions, running processes, and available updates. All MCP connections and running processes are also visible in one place.
How does Harness Manager help you discover new additions to your workflow?
It lets you browse and discover MCP servers, reusable skills, and harnesses (tool configurations) by popularity. This helps you find new additions to your workflow. The app combines this discovery with visibility into your existing AI tool stack.
Source: harnessmanager.devmesh.xyz