xby-calculator-kel: An MCP-Based Numerical Calculator Plugin

xby-calculator-kel is a numerical computation plugin based on the Model Context Protocol (MCP), designed to address potential precision errors that large models may encounter when handling complex mathematical operations. Maintained by developer xby-skill, it provides a reliable numerical computation backend for the DeepSeek Harness (DSH) ecosystem. Its core features include basic operations (addition, subtraction, multiplication, and division) and advanced operations (exponentiation, square roots, and factorials), with support for setting and automatically persisting an API key via `set_xby_apikey`. To use the plugin, users must first obtain an API key from the official Xiaobenyang website and then call the corresponding mathematical functions. It is suitable for scenarios such as financial statement generation and scientific computing assistance, and it takes effect when the DSH process starts after installation.