Common Lisp

About

CL-MCP-Server transforms how AI agents interact with Common Lisp by providing a persistent, stateful REPL environment. Unlike one-shot execution, it enables interactive exploratory programming, allowing agents to define functions, manage variables, load systems, and capture rich output while gracefully handling errors. This empowers Claude and other AI agents with a comprehensive, live Common Lisp workspace for complex tasks and incremental development, featuring 23 specialized tools for evaluation, introspection, and profiling.

Key Features

• 14 GitHub stars
• Persistent, Stateful REPL Session
• 23 Specialized Lisp Tools (e.g., evaluation, introspection, profiling)
• Rich Error Reporting with Backtraces and Condition Capture
• Safe Execution Environment Prevents Server Crashes
• Standards-Compliant MCP Protocol (JSON-RPC 2.0) over stdio

Use Cases

• Automated Lisp development and stateful computation through AI agents.
• Empowering AI agents like Claude to perform persistent Common Lisp code evaluation.
• Enabling interactive exploratory programming and debugging for AI-driven Lisp development.