I have released the Tinderbox Action Code LSP , a VS Code extension.
I built this extension as a winter holiday project.

It was built using “vibe coding” with Gemini Cli and Antigravity. The language is automatically detected when the file extension is .tbxc.
It should function similarly to a standard LSP. For the hover information, I am using Mark Anderson’s excellent “A Tinderbox Reference File”,and I would like to express my sincere thanks to @mwra.
It might still have some bugs, but it currently supports features like checking for missing semicolons and smart quotes. Please feel free to give it a try.