Aider
Terminal-based AI pair programmer — run aider in a git repo and chat with an LLM that directly edits your files and commits.
Paul Gauthier, 2023. Open source (Apache 2.0), supports Claude, GPT, Gemini, and local models via Ollama. Uses a "repo map" (an LLM-friendly summary of files/symbols) to navigate large codebases without stuffing everything into the context.
Hottest among CLI purists vs. Cursor/Windsurf. Supports voice input, browser-screenshot feedback, automatic test runs between edits. The /architect mode splits the prompt into plan+edit for better reasoning.