diff --git a/frontend/src/js/core/templating.ts b/frontend/src/js/core/templating.ts
index 0f2edf1..db5ebc5 100644
--- a/frontend/src/js/core/templating.ts
+++ b/frontend/src/js/core/templating.ts
@@ -2,6 +2,7 @@ import { cloneDeep } from 'lodash-es';
 
 import hash from 'object-hash';
 
+import entry from 'js/types/entry';
 import Settings from 'js/types/settings';
 // @ts-ignore
 import TemplatingWorker from 'js/workers/templating-worker?worker';
@@ -226,3 +227,22 @@ export const render = (
  */
 export const containsAi = (template: string) =>
 	(template.includes('ai') && template.includes('endai') && template.includes('user')) || template.includes('aiPrompt(');
+
+/**
+ * Add entry meta to the state it object.
+ * @param entry Entry object.
+ * @param it State it object.
+ * @returns State it object with entry meta.
+ */
+export const addEntryMeta = (entry: entry | null, it: any) => {
+	if (!it) {
+		return it;
+	}
+	return {
+		...it,
+		snd: {
+			id: entry?.id ?? 'skeleton-entry-id',
+			name: entry?.name ?? 'Skeleton Entry Name',
+		},
+	};
+};
diff --git a/frontend/src/js/ui/components/editor/template.ts b/frontend/src/js/ui/components/editor/template.ts
index 22411ee..3aecd23 100644
--- a/frontend/src/js/ui/components/editor/template.ts
+++ b/frontend/src/js/ui/components/editor/template.ts
@@ -8,7 +8,7 @@ import { fillConfigValues } from 'src/js/types/config';
 import * as API from 'js/core/api';
 import { createNunjucksCompletionProvider } from 'js/core/monaco/completion-nunjucks';
 import { settings } from 'js/core/store';
-import { render } from 'js/core/templating';
+import { addEntryMeta, render } from 'js/core/templating';
 
 import Button from 'js/ui/spectre/button';
 import Label from 'js/ui/spectre/label';
@@ -31,6 +31,7 @@ import { dialogWarning, error } from 'js/ui/toast';
 type TemplateEditorProps = {
 	template: Template;
 	onChange: (updated: Template) => void;
+	onJSONError?: (error: any | null) => void;
 	editMode?: boolean;
 };
 
@@ -41,6 +42,7 @@ type TemplateEditorState = {
 	entriesKey: string;
 	entries: Entry[];
 	listPreview: string;
+	jsonSkeleton: string;
 	errorsPrint: PrintPreviewError[];
 	errorsList: PrintPreviewError[];
 };
@@ -53,6 +55,7 @@ export default (): m.Component<TemplateEditorProps> => {
 		entriesKey: '',
 		entries: [],
 		listPreview: '',
+		jsonSkeleton: '{}',
 		errorsPrint: [],
 		errorsList: [],
 	};
@@ -88,7 +91,7 @@ export default (): m.Component<TemplateEditorProps> => {
 		render(
 			val,
 			{
-				it: attrs.template.skeletonData,
+				it: addEntryMeta(null, attrs.template.skeletonData),
 				sources: attrs.template.dataSources,
 				config: state.config,
 				settings: settings.value,
@@ -171,6 +174,7 @@ export default (): m.Component<TemplateEditorProps> => {
 	return {
 		oninit({ attrs }) {
 			renderListPreview(attrs.template.listTemplate, attrs);
+			state.jsonSkeleton = JSON.stringify(attrs.template.skeletonData, null, 2);
 			fetchEntries(attrs);
 		},
 		onupdate({ attrs }) {
@@ -318,14 +322,16 @@ export default (): m.Component<TemplateEditorProps> => {
 										m(Monaco, {
 											key: 'data-skeleton-monaco',
 											language: 'json',
-											value: JSON.stringify(attrs.template.skeletonData, null, 2),
+											value: state.jsonSkeleton,
 											className: '.flex-grow-1',
 											wordWrap: 'on',
 											onChange: (value) => {
+												state.jsonSkeleton = value;
 												try {
 													attrs.onChange({ ...attrs.template, skeletonData: JSON.parse(value) });
+													if (attrs.onJSONError) attrs.onJSONError(null);
 												} catch (e) {
-													// Monaco will show the error
+													if (attrs.onJSONError) attrs.onJSONError(e);
 												}
 											},
 										}),
@@ -346,7 +352,7 @@ export default (): m.Component<TemplateEditorProps> => {
 										className: '.flex-grow-1',
 										errors: state.errorsPrint,
 										completion: createNunjucksCompletionProvider({
-											it: attrs.template.skeletonData,
+											it: addEntryMeta(null, attrs.template.skeletonData),
 											images: attrs.template.images,
 											settings: settings.value,
 											sources: attrs.template.dataSources,
diff --git a/frontend/src/js/ui/components/print-preview-template.ts b/frontend/src/js/ui/components/print-preview-template.ts
index c0f416c..39b0e99 100644
--- a/frontend/src/js/ui/components/print-preview-template.ts
+++ b/frontend/src/js/ui/components/print-preview-template.ts
@@ -1,10 +1,11 @@
 import m from 'mithril';
 import { cloneDeep, debounce, isEqual } from 'lodash-es';
 
+import Entry from 'js/types/entry';
 import Generator from 'js/types/generator';
 import Template from 'js/types/template';
 import store, { settings } from 'js/core/store';
-import { containsAi, render } from 'js/core/templating';
+import { addEntryMeta, containsAi, render } from 'js/core/templating';
 
 import Button from 'js/ui/spectre/button';
 
@@ -24,6 +25,7 @@ export type PrintPreviewTemplateProps = {
 	generator?: Generator;
 	useListTemplate?: boolean;
 	it?: any;
+	entry?: Entry;
 	config?: any;
 	hideAiNotice?: boolean;
 	width?: number;
@@ -54,7 +56,8 @@ export default (): m.Component<PrintPreviewTemplateProps> => {
 			isEqual(lastProps.template, attrs.template) &&
 			isEqual(lastProps.it, attrs.it) &&
 			isEqual(lastProps.generator, attrs.generator) &&
-			isEqual(lastProps.config, attrs.config)
+			isEqual(lastProps.config, attrs.config) &&
+			isEqual(lastProps.entry, attrs.entry)
 		) {
 			return;
 		}
@@ -65,7 +68,7 @@ export default (): m.Component<PrintPreviewTemplateProps> => {
 
 		if (attrs.template === null && attrs.generator === null) return;
 		const printTemplate = getTemplate(attrs);
-		const it = attrs.it ?? attrs.template?.skeletonData;
+		const it = addEntryMeta(attrs.entry ?? null, attrs.it) ?? addEntryMeta(null, attrs.template?.skeletonData);
 
 		render(printTemplate ?? '', {
 			it: it ?? {},
diff --git a/frontend/src/js/ui/components/view-layout/sidebar-print-page.ts b/frontend/src/js/ui/components/view-layout/sidebar-print-page.ts
index 07aa7e0..5bd949a 100644
--- a/frontend/src/js/ui/components/view-layout/sidebar-print-page.ts
+++ b/frontend/src/js/ui/components/view-layout/sidebar-print-page.ts
@@ -1,5 +1,6 @@
 import m from 'mithril';
 
+import Entry from 'js/types/entry';
 import Generator from 'js/types/generator';
 import Template from 'js/types/template';
 
@@ -17,6 +18,7 @@ type SidebarPrintProps = {
 	template?: Template;
 	generator?: Generator;
 	it?: any;
+	entry?: Entry;
 	config?: any;
 	tabs: TabDefinition[];
 	content: Record<string, () => m.Component>;
@@ -55,6 +57,7 @@ export default (): m.Component<SidebarPrintProps> => {
 							template: vnode.attrs.template,
 							generator: vnode.attrs.generator,
 							it: vnode.attrs.it,
+							entry: vnode.attrs.entry,
 							config: vnode.attrs.config,
 							width: 380,
 							className: '.bg-black-05.ph1.ba.b--black-10',
diff --git a/frontend/src/js/ui/views/extern-print/template.ts b/frontend/src/js/ui/views/extern-print/template.ts
index 3f96258..e599405 100644
--- a/frontend/src/js/ui/views/extern-print/template.ts
+++ b/frontend/src/js/ui/views/extern-print/template.ts
@@ -3,7 +3,7 @@ import m from 'mithril';
 import Template from 'js/types/template';
 import * as API from 'js/core/api';
 import { settings } from 'js/core/store';
-import { render } from 'js/core/templating';
+import { addEntryMeta, render } from 'js/core/templating';
 
 type ExternPrintProps = {
 	id: string;
@@ -34,7 +34,7 @@ export default (): m.Component<ExternPrintProps> => {
 			API.exec<Template>(API.GET_TEMPLATE, state.id)
 				.then((tmpl) => {
 					render(tmpl.printTemplate, {
-						it: state.json,
+						it: addEntryMeta({ name: '', id: '', data: {} }, state.json), // TODO: rework this
 						images: tmpl.images,
 						sources: tmpl.dataSources,
 						config: JSON.parse(atob(attrs.config)),
diff --git a/frontend/src/js/ui/views/template/create-entity.ts b/frontend/src/js/ui/views/template/create-entity.ts
index 2289a76..a41fc54 100644
--- a/frontend/src/js/ui/views/template/create-entity.ts
+++ b/frontend/src/js/ui/views/template/create-entity.ts
@@ -153,11 +153,6 @@ export default (): m.Component<CreateTemplateEntityProps> => {
 						})
 						.catch(error);
 				}
-
-				// Testing stuff
-				// console.log(state.schema);
-				// console.log(getCategories());
-				// console.log(initialData(state.schema));
 			});
 		},
 		view({ attrs }) {
@@ -206,6 +201,7 @@ export default (): m.Component<CreateTemplateEntityProps> => {
 				m(SidebarPrintPage, {
 					template: state.template,
 					it: state.data,
+					entry: state,
 					tabs: [{ icon: 'filing', label: 'Entry' }],
 					content: {
 						Entry: () =>
diff --git a/frontend/src/js/ui/views/template/create.ts b/frontend/src/js/ui/views/template/create.ts
index a0196db..10b59ff 100644
--- a/frontend/src/js/ui/views/template/create.ts
+++ b/frontend/src/js/ui/views/template/create.ts
@@ -19,6 +19,7 @@ type TemplateCreateProps = {
 
 export default (): m.Component<TemplateCreateProps> => {
 	let state: Template = createEmptyTemplate();
+	let hadJSONError = false;
 
 	return {
 		oninit({ attrs }) {
@@ -47,7 +48,12 @@ export default (): m.Component<TemplateCreateProps> => {
 								size: 'sm',
 								intend: 'success',
 								onClick: () => {
-									if (!state) return;
+									if (hadJSONError) {
+										error('Errors in the "Data Skeleton", please fix them before saving.');
+										return;
+									}
+
+									if (!state || hadJSONError) return;
 									if (attrs.id && buildId('template', state) === attrs.id) {
 										error('You cannot duplicate a template with the same slug as the original.');
 										return;
@@ -86,6 +92,9 @@ export default (): m.Component<TemplateCreateProps> => {
 						state = template;
 						m.redraw();
 					},
+					onJSONError: (error) => {
+						hadJSONError = !!error;
+					},
 				}),
 			);
 		},
diff --git a/frontend/src/js/ui/views/template/edit.ts b/frontend/src/js/ui/views/template/edit.ts
index 2d72f32..9f88178 100644
--- a/frontend/src/js/ui/views/template/edit.ts
+++ b/frontend/src/js/ui/views/template/edit.ts
@@ -22,6 +22,7 @@ type EditTemplateProps = {
 
 export default (): m.Component<EditTemplateProps> => {
 	let state: Template | null = null;
+	let hadJSONError = false;
 
 	return {
 		oninit({ attrs }) {
@@ -52,7 +53,12 @@ export default (): m.Component<EditTemplateProps> => {
 								size: 'sm',
 								intend: 'success',
 								onClick: () => {
-									if (!state) return;
+									if (hadJSONError) {
+										error('Errors in the "Data Skeleton", please fix them before saving.');
+										return;
+									}
+
+									if (!state || hadJSONError) return;
 									API.exec<void>(API.SAVE_TEMPLATE, state)
 										.then(() => {
 											if (!state) return;
@@ -90,6 +96,9 @@ export default (): m.Component<EditTemplateProps> => {
 								state = template;
 								m.redraw();
 							},
+							onJSONError: (error) => {
+								hadJSONError = !!error;
+							},
 							editMode: true,
 					  })
 					: m(Loader),
diff --git a/frontend/src/js/ui/views/template/single.ts b/frontend/src/js/ui/views/template/single.ts
index 103a884..c49473e 100644
--- a/frontend/src/js/ui/views/template/single.ts
+++ b/frontend/src/js/ui/views/template/single.ts
@@ -325,6 +325,7 @@ export default (): m.Component<SingleTemplateProps> => {
 					  m(SidebarPrintPage, {
 							template: state.template,
 							it: state.selectedEntry?.data,
+							entry: state.selectedEntry,
 							onRendered: (html) => (state.lastRendered = html),
 							tabs: [
 								{ icon: 'filing', label: 'Entries' },