🏆 Ranked list of 187 AI agent harnesses, plus templates, playbooks, MCP, and learning resources. Rescored weekly.
Best of Agent Harnesses is a curated directory of agent harnesses, which are runtimes that let AI models act by controlling tools, permissions, context, and saved state around an action loop. It helps people compare harnesses and use related templates, playbooks, and learning resources for building agentic systems. Catalogue entries include agents and other configurations that can query or support the listed harnesses.
This repository also configures its own agents. See what best-of-Agent-Harnesses tells them →
RyanAlberts/best-of-Agent-Harnesses
MCP server Claude CodeCodexCursor +2
MCP server for best-of-Agent-Harnesses: opinionated harness recommendations (recommend/pickharness), search, and head-to-head decision guides over a hand-curated, weekly-rescored list of agent harnesses. Runs locally from the agent-harnesses-mcp Python package.