diff --git a/src/app/components/generator/McdocRenderer.tsx b/src/app/components/generator/McdocRenderer.tsx
index 2055e143..4ad56d2f 100644
--- a/src/app/components/generator/McdocRenderer.tsx
+++ b/src/app/components/generator/McdocRenderer.tsx
@@ -397,7 +397,7 @@ function Body({ type, optional, node, makeEdit, ctx }: BodyProps) {
 		return <UnionBody type={type} optional={optional} node={node} makeEdit={makeEdit} ctx={ctx} />
 	}
 	if (type.kind === 'struct') {
-		if (!JsonObjectNode.is(node) || optional || type.fields.length === 0) {
+		if (!JsonObjectNode.is(node) || type.fields.length === 0) {
 			return <></>
 		}
 		return <div class="node-body">
@@ -678,8 +678,14 @@ function getDefault(type: McdocType, range: core.Range, ctx: McdocContext): Json
 		const object = JsonObjectNode.mock(range)
 		if (type.kind === 'struct') {
 			for (const field of type.fields) {
-				if (field.kind === 'pair' && !field.optional && typeof field.key === 'string') {
-					const key: JsonStringNode = { type: 'json:string', range, options: json.parser.JsonStringOptions, value: field.key, valueMap: [{ inner: core.Range.create(0), outer: core.Range.create(range.start) }] }
+				if (field.kind === 'pair' && !field.optional && (typeof field.key === 'string' || field.key.kind === 'literal')) {
+					const key: JsonStringNode = {
+						type: 'json:string',
+						range,
+						options: json.parser.JsonStringOptions,
+						value: typeof field.key === 'string' ? field.key : field.key.value.value.toString(),
+						valueMap: [{ inner: core.Range.create(0), outer: core.Range.create(range.start) }],
+					}
 					const value = getDefault(field.type, range, ctx)
 					const pair: core.PairNode<JsonStringNode, JsonNode> = {
 						type: 'pair',
diff --git a/src/app/services/Spyglass.ts b/src/app/services/Spyglass.ts
index 8a67244b..c2604fa8 100644
--- a/src/app/services/Spyglass.ts
+++ b/src/app/services/Spyglass.ts
@@ -15,7 +15,7 @@ import type { Position, Range } from 'vscode-languageserver-textdocument'
 import { TextDocument } from 'vscode-languageserver-textdocument'
 import type { ConfigGenerator } from '../Config.js'
 import siteConfig from '../Config.js'
-import { computeIfAbsent, genPath } from '../Utils.js'
+import { computeIfAbsent, genPath, message } from '../Utils.js'
 import type { VersionMeta } from './DataFetcher.js'
 import { fetchBlockStates, fetchRegistries, fetchVanillaMcdoc, fetchVersions, getVersionChecksum } from './DataFetcher.js'
 import type { VersionId } from './Versions.js'
@@ -332,6 +332,23 @@ function registerAttributes(meta: core.MetaRegistry, release: ReleaseVersion, ve
 			}
 		},
 	})
+
+	// Until spyglass implements this attribute itself
+	mcdoc.runtime.registerAttribute(meta, 'regex_pattern', () => undefined, {
+		checker: (_, typeDef) => {
+			if (typeDef.kind !== 'literal' || typeDef.value.kind !== 'string') {
+				return undefined
+			}
+			const pattern = typeDef.value.value
+			return (node, ctx) => {
+				try {
+					RegExp(pattern)
+				} catch (e) {
+					ctx.err.report(message(e), node, 2)
+				}
+			}
+		},
+	})
 }
 
 function getLsPosition(offset: number, doc: TextDocument): Position {