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1. [Software Factory Directory](/software-factories.md)
2. [Agent orchestration](/software-factories/category/agent-orchestration.md)
3. HAR

# HAR

[Agent orchestration](/software-factories/category/agent-orchestration.md) Open source

[Visit website ](https://harproject.dev/)[View on GitHub](https://github.com/os-factory/har)

Open-source agent harness with a CLI and MCP server, isolated worktrees and deterministic verification.

## Overview

HAR is an open agent harness from the OS Factory project. It provides a CLI and an MCP server, runs agent work in isolated git worktrees and checks the results with deterministic verification.

It is released under the Apache-2.0 license and installs from npm, with documentation on harproject.dev. There is no pricing or hosted tier.

## Features

* Ships as a CLI and an MCP server.
* Runs agent work in isolated git worktrees.
* Verifies results deterministically.
* Installs from npm, with public docs.

## Details

* Website

  [harproject.dev](https://harproject.dev/)

* Company

  OS Factory (HAR)

* Category

  [Agent orchestration](/software-factories/category/agent-orchestration.md)

* Source

  Open source

* Repository

  * [github.com/os-factory/har](https://github.com/os-factory/har) · 124 stars

* License

  Apache-2.0

* Commercial offering

  None found

* Topics

  * [CLI](/software-factories/?tag=cli)
  * [MCP](/software-factories/?tag=mcp)
  * [Git worktrees](/software-factories/?tag=git-worktrees)
  * [Testing & QA](/software-factories/?tag=testing)

* Listed

  October 2026

* Last verified

  October 2026

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[All agent orchestration](/software-factories/category/agent-orchestration.md)