diff --git a/stsg/definitions.py b/stsg/definitions.py
new file mode 100644
index 0000000..d1e254f
--- /dev/null
+++ b/stsg/definitions.py
@@ -0,0 +1,26 @@
+from typing import TypedDict
+
+
+class ArticleConfig(TypedDict):
+    slug: str
+    name: str
+    iso_date: str
+    author: str
+
+
+class ArticleContext(TypedDict):
+    slug: str
+    name: str
+    url: str
+    date: str
+    iso_date: str
+    author: str
+    
+
+class ArticleTranslationContext(TypedDict):
+    slug: str
+    name: str
+    url: str
+    date: str
+    iso_date: str
+    author: str