Ralph AI Agent

Ralph is a Rust-based AI agent runtime that focuses on safe, modular, and programmable autonomous behavior. It provides a reactive loop where agents can repeatedly assess the current context, reason about the next best action using large language models, and execute actions across integrated tools and services. The runtime emphasizes safety boundaries by sandboxing operations, enforcing time and token limits, and isolating execution layers to prevent unpredictable side effects. Ralph also includes a built-in plugin system that lets developers attach custom tools, environment connectors, or monitoring hooks without modifying core logic. Designed for extensibility, the framework supports multi-model providers so agents can switch between models or fall back based on task needs. It also aims to be practical for production by including logging, error handling, and state persistence so that agents can resume interrupted workflows.