To configure VS Code for debugging the generator, specifically visitors, add the following to your launch.json in the root of the workspace
{
"version": "0.2.0",
"configurations": [
{
"name": "Debug OpenAI Library Plugin",
"type": "coreclr",
"request": "launch",
"program": "dotnet",
"args": [
"${workspaceFolder}/codegen/dist/generator/Microsoft.TypeSpec.Generator.dll",
"${workspaceFolder}",
"-g",
"OpenAILibraryGenerator"
],
}
]
}