WitcherScript IDE is an unofficial Witcher 3 modding tool aimed at improving developer experience by supplying them with powerful code analysis tools in the form of an editor extension making use of a Language Server.
Currently the only supported client is Visual Studio Code.
Website: https://spontancombust.github.io/witcherscript-ide
The IDE is distributed in form of code editor extension. Currently only the VSCode extension is available. Releases can be found in Visual Studio Marketplace, Open VSX Registry or can be directly downloaded from the releases page.
Check out the user manual for more information.
You can find information on building the project and contributions in the developer section on the website.