Nodemancer Lite is an add-on that converts material node groups into custom nodes accessible directly from the Shift+A menu. It allows users to create clean, reusable nodes without scripting, exposing only specific sockets while keeping others hidden or constant. The tool includes project organization features for managing shared node libraries and adding descriptive notes to custom nodes. This Lite version is restricted to shader nodes, with geometry and compositor node support available in a separate Pro version.