Harness

Harness

Tiny apps for agents and humans

Productivity
Unknown
Product Hunt

3

Product Hunt Upvotes

Apr 7, 2026

Launch Date

1d ago

First Tracked

About

AI Summary

Harness is a standalone desktop application that interacts with AI agents via localhost APIs, allowing users to manage tasks on their kanban board, receive alerts, and communicate asynchronously, all without requiring accounts or cloud connectivity. It supports various AI models and operates locally on the user's machine.

Harness is standalone desktop apps that talk to any AI agent through localhost APIs. Not a plugin, not a platform. Just apps on your machine. The agent reads your kanban board, respects your "don't do" list, sends you alerts, leaves async questions, and checks how much time it has left. Works with Claude Code, Codex, Cursor, or anything that can make HTTP requests. Drop a markdown file in your project and the agent knows the apps exist. No accounts, no cloud, no tracking.

Tags

Productivity
Artificial Intelligence
Tech