MCP server
Harness
macOS app that runs AI user tests against an iOS Simulator, macOS or web app: give a goal and persona, and an LLM agent works through the UI and reports success, the replayable path and points of friction. Includes an MCP server; alpha (v0.8.x).
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Install
Download Harness-v0.8.4-Universal.zip from https://github.com/awizemann/harness/releases/latest (macOS 14+).Copied from the upstream source on 17 Oct 2026. Check the repository before you run it. Works with Claude Code, MCP clients.