LongHorizon

LongHorizon is an agent app that keeps AI agents working on long desktop and terminal tasks until results are verified for developers.

What it is good for

  • Keeping a long desktop task on track across many steps
  • Checking that an agent's finished work actually meets the goal
  • Resuming an interrupted multi-step task without starting over

At a glance

Who it is for
Setup
Guided command-line setup

Level 4 of 5. You copy and paste commands into a terminal by following the instructions. Comfortable territory for vibe coders.

Cost
Free and open source
Type
Agent app
Tasks
Works with
Claude Code, Codex, OpenCode, OpenClaw

Momentum

Rank this week
Not ranked yet
Best rank
None yet
GitHub stars
1,813

GitHub numbers as of Nov 2, 2026. Updated weekly.

1,599 1,714 1,829 Sep 24, 2026 Nov 2, 2026
GitHub stars for LongHorizon: 1,615 on Sep 24, 2026, 1,813 on Nov 2, 2026. Source: GitHub.

Official links

Setup steps are on the official pages. We do not repeat them here, since they change.

Questions

Is LongHorizon free?
Yes. It is free and open source (MIT license).
Do I need to know how to code to use LongHorizon?
You do not need to write code, but setup means copying and pasting commands into a terminal by following its instructions.
What does LongHorizon work with?
According to its own documentation, it works with Claude Code, Codex, OpenCode, and OpenClaw.
What is LongHorizon good for?
Keeping a long desktop task on track across many steps, checking that an agent's finished work actually meets the goal, and resuming an interrupted multi-step task without starting over.

Similar agents

  • Atomic Agent

    Atomic Agent is a local-first agent app that runs on your own machine to browse the web, edit files, and run approved commands for people who want to keep their data local.

  • AlphaCode

    AlphaCode is an agent app that writes, edits, and tests code from your terminal for developers, with a free built-in model.

  • Dodaios

    Dodaios is an open-source desktop app that runs coding agents, browser tasks and apps by voice or chat on your own machine for developers and power users.

  • Celesto

    Celesto is a secure, persistent virtual computer that gives AI agents their own desktop for running code and browsing for developers.

  • Eido

    Eido is an agent app that helps developers describe a coding task, let an AI agent make changes, and review them in a macOS code editor.

  • rtk

    rtk is a command-line proxy that shrinks the output of developer commands before an AI coding agent reads it, to cut token costs.

Last updated Nov 2, 2026. Tracked since Oct 28, 2026. Parts of this summary required judgment because the source material was brief. The summary was written by an AI model from the project's own description and checked against our copy rules. Spotted an error? Tell us.