What is reina?

Reina is a desktop app that acts as an AI agent for your local projects. Instead of chatting in a browser tab, you install it on Windows or macOS and it holds an ongoing conversation about your files and tasks, helping organize information and push multi step work forward. You provide your own AI model and API key in the app's settings, and those keys are stored only on your machine, never sent through any company server owned by the project. One of its main ideas is working as a team. When a single agent is not enough, a coordinator agent breaks a goal into smaller connected tasks and directs a set of worker agents through the steps until each part is finished, rather than stopping early and calling the job done. The app also supports something called MCP servers and Skills, which are add ons you can connect or install from built in marketplaces, and the agent itself can look for and add new skills while working on a task. Before any action that could change files or systems, Reina asks for your approval, and each step it takes is visible so you can pause or resume the process. The app is organized into separate windows for chatting, viewing your workspace, and adjusting settings, and it updates itself automatically once installed. To try it, you download an installer for your operating system from the project's releases page, pick a workspace, enter your model and API key, then give it a task. Building it from source requires Node.js and involves cloning the repository and running install and build commands. Reina is released under the AGPL-3.0 license, meaning you can use, change, and share it freely, but any modified version, including one offered as an online service, must also share its full source code. The author offers a separate commercial license for closed source use.