in src/main/java/software/amazon/smithy/lsp/SmithyTextDocumentService.java [67:78]
public SmithyTextDocumentService(Optional<LanguageClient> client) {
this.client = client;
List<CompletionItem> keywordCompletions = SmithyKeywords.KEYWORDS.stream()
.map(kw -> create(kw, CompletionItemKind.Keyword)).collect(Collectors.toList());
List<CompletionItem> baseTypesCompletions = SmithyKeywords.BUILT_IN_TYPES.stream()
.map(kw -> create(kw, CompletionItemKind.Class)).collect(Collectors.toList());
baseCompletions.addAll(keywordCompletions);
baseCompletions.addAll(baseTypesCompletions);
}