RAIL Protocol: Remote Agent Invocation Layer for AI Application Control

Summary

RAIL (Remote Agent Invocation Layer) is a protocol that enables AI systems to directly control applications by adding just one line of code. It serves as a universal bridge connecting any application (C#, C++, Python, Node.js) to any large language model (GPT, Claude, Gemini), allowing AI to call application methods directly without rewriting the application. The project includes components like RailOrchestrator (main AI application with UI and LLM routing), RailBridge.Native (native DLL for cross-language IPC), and RailSDK.Universal (client SDK for .NET). The article describes the project architecture and its goal of making applications AI-controllable through a minimal code integration approach.