Completely free and incredibly easy to deploy LLM-powered solution for code reviewing. The architecture is based on Claude Code as the primary reasoning engine, Claude Code Router for dynamic sub-agent invocation, and OpenRouter, which provides access to numerous free-tier LLMs.

Custom Agents is a terminal-based AI coding assistant that runs entirely on your machine. It gives you specialized AI agents — explorer, coder, and reviewer — that can read, write, search, and reason about your codebase. Think of it as your own local Claude Code, powered by any OpenAI-compatible API (OpenRouter, OpenAI, Ollama, LM Studio).