Plandex

Plandex is an open-source, terminal-based AI coding agent designed to facilitate the development of real-world software projects. It distinguishes itself by handling large projects, files, and tasks with its effective 2M token context window and tree-sitter project maps. Key architectural features include a diff review sandbox for isolating and reviewing changes, a full auto mode for hands-free operation, and smart context management. It allows users to combine models from Anthropic, OpenAI, Google and more, avoiding vendor lock-in. Plandex is designed for developers who need a robust and configurable workflow for leveraging generative AI, from building entire features to debugging existing applications. Its open-source nature promotes community contributions and customization.