biscuit
About
Biscuit targets developers who want a fast, hackable editor without the gigabyte-scale installs of Electron IDEs. Built in Python on Tk, it ships tree-sitter syntax parsing, completions, LSP integration via extensions, ripgrep-powered search, git operations with split diffs, and a DAP debugging client in a package under 20MB installed with pip. Its AI layer supports Gemini and Anthropic models with a planning agent that wields ReadFile, EditFile, Grep, and RunTerminalCmd tools, plus file-attach chat context and LLM calls directly in terminals. An extension marketplace, GUI and CLI-based, adds language servers, debuggers, and themes, and vim mode plus DAP debugging round out the editing core. It is MIT-licensed, actively maintained, and aimed at developers who want a lightweight, extensible editor with built-in agentic assistance.