Spirit Room

Spirit Room helps developer teams ensure AI agents can actually use their tools. We test your MCP servers, CLIs, and APIs against real-world tasks across multiple models and agent applications, analyzing why agents fail to find, understand, or correctly invoke your tools. We identify friction points—confusing names, unclear descriptions, unhelpful error messages—then systematically test improvements. Our hands-on pilot includes comprehensive journey reports and winning changes, covering one product, up to 25 tasks, three models, and two agent apps over two weeks. A working tool means nothing if agents can't discover it. Spirit Room makes your tools discoverable and reliably useful to AI agents.