Common Lisp REPL

Provides a REPL evaluation tool that executes Common Lisp code safely with read-time evaluation disabled, enabling mathematical calculations, data processing, and symbolic computation tasks using Lisp's expressive power while maintaining security through disabled reader macros.

This Common Lisp MCP server by cxxxr provides a REPL evaluation tool that allows AI assistants to execute Lisp code safely with read-time evaluation disabled to prevent security issues from constructs like #.(). Built using ASDF with dependencies on Alexandria, Yason, usocket, and bordeaux-threads, it supports both stdio and TCP transport modes with structured JSON logging and comprehensive test coverage using the Rove framework. The implementation features a single repl-eval tool that evaluates Common Lisp forms sequentially and returns the last value as printed text, making it valuable for AI assistants that need to perform mathematical calculations, data processing, or symbolic computation tasks using the expressive power of Lisp while maintaining security through disabled reader macros.