MCP-ratchet: Go package for enforcing tool call order in MCP servers (github.com)

The newly announced MCP-ratchet is a Go package designed to enforce the correct order of tool calls in Model Context Protocol (MCP) servers, addressing a common issue where large language models (LLMs) incorrectly invoke tools without meeting prerequisite requirements. This package introduces a token-based dependency system, requiring that tokens be issued by prior tools to ensure that complex workflows are followed diligently. The implications are significant: misleading API calls that stem from missing authentication or context can be avoided, thus enhancing the reliability of automated systems that rely on multi-step processes. Technical features of MCP-ratchet include the ability to configure dependencies through simple YAML files, support for multi-level dependency chains, and customizable error messages that effectively guide LLMs toward the correct workflow steps. By enforcing tool call compliance, critical functions such as authentication and data modification are protected from being executed out of order. The ease of integration and the framework-agnostic design position MCP-ratchet as a valuable tool for developers looking to enhance the robustness of their AI applications, ensuring that each tool call is both valid and contextually appropriate.