mcpArendServer

The MCP server forwards arbitrary Arend definitions directly to a local typechecker server for execution. While Arend's typechecker is generally considered a safe sandbox, the primary security risk lies in whether a maliciously crafted Arend definition could exploit the underlying Arend library for arbitrary code execution. The typechecker server listens on localhost:9999 without authentication, meaning any local process can submit code for typechecking. The 'Generate_specification' tool uses a whitelist for topic names, mitigating arbitrary file reads for that specific function. No 'eval' or explicit arbitrary command execution is present in the provided code, and Base64 encoding is used for data transfer, not obfuscation or encryption.