Har
HAR: open agent harness (CLI + MCP) for coding agents. Isolated worktrees, deterministic verify, software factory workflows for Claude Code, Cursor, and Codex.
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No install snippet on purpose. A working MCP config is a command, its arguments and an environment block — the last two are where API keys live, so this catalogue never stores them and cannot publish them. Follow the link above for the authors' own instructions.
HAR is an open, agent-agnostic harness for building AI coding workflows that can be trusted and verified. HAR can be installed via npm globally. HAR works with Claude Code, Cursor, Codex, and many other coding agents.
HAR provides isolated worktrees, ports, and environments for each coding agent. HAR includes a local dashboard called Mission Control for monitoring repositories and agent slots. HAR can be extended with framework-specific stages via a plugin system.
HAR is licensed under Apache-2.0.
Summary drafted from the project's own website. Every sentence is backed by text on that page and was reviewed before publishing.