LongHorizon-Harness alternatives
Tools that could take the place of LongHorizon-Harness, ranked by the stacks builders put them in rather than by stars alone.
Other agents in the runchr registry that do the work of LongHorizon-Harness — a tool somebody pairs with it ranks above a more popular stranger. Read the LongHorizon-Harness page or browse every agents.
Open source terminal AI coding agent with build and plan modes.
OpenAI's lightweight coding agent that runs locally in your terminal.
Self-improving terminal agent with memory, skills, and multi-platform gateway.
Open-source Gemini agent that runs in your terminal for coding and automation.
Autonomous AI pentesting agents that find and validate app vulnerabilities.
Open-source Rust terminal coding agent that works with any model or provider.
Terminal coding agent with IDE, LSP, and debugger integration.
Open-source terminal AI coding agent with subagents, MCP, and multi-model
Autonomous LLM-powered penetration testing and CTF agent.
Self-hosted AI pentesting agent that maps attack surface and exploits it.
Self-hosted agent that runs each task in its own VM with a stealth browser.
Multi-model coding agent orchestrator with graph engineering and memory.