CCHarness is a local-first, multi-model AI chat desktop app (Tauri 2 + React 18 + Rust) licensed under AGPL-3.0, bringing multiple large models into a single desktop workbench. It offers seven workflow modes (agent, plan, goal, deep reasoning, review, image generation, and custom state machines), multi-agent collaboration (arena comparison, round-table group chat, named sub-agents), vector long-term memory with automatic reflection, and request-side prefix cache hit rate as a first-class metric. It ships 16+ built-in tools, MCP, Skills, Guardrails safety rails, and multimodal input, supporting DeepSeek, GLM, Kimi, OpenAI, Anthropic, Ollama, and any OpenAI-compatible endpoint; API keys are encrypted at the system level.
Yes. CCHarness is free and open-source software released under the AGPL-3.0-or-later license.
What is the latest version of CCHarness?
The latest version is 0.2.0, released on Sep 12, 2026.
Is it safe to download CCHarness?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 0084e3210bd880c1a8f81ab16ac7a3181dc659a2299e38360cf182d97b614270.
Which Windows versions does CCHarness support?
CCHarness runs on Windows and is available for 64-bit (x64) systems.
How do I install CCHarness silently?
Run the offline installer with msiexec /i "CCHarness_0.2.0_x64_en-US.msi" /quiet /norestart, or install it with Windows Package Manager: winget install --id=Technicalflight.CCHarness -e --silent.
How do I uninstall CCHarness?
Open Settings › Apps › Installed apps, find CCHarness and select Uninstall. From the command line, run winget uninstall --id=Technicalflight.CCHarness -e.
Alternatives to CCHarness
Other AI for Productivity programs for Windows from different developers.