diff --git a/src/content-env.d.ts b/src/content-env.d.ts
index 470d413..be146f5 100644
--- a/src/content-env.d.ts
+++ b/src/content-env.d.ts
@@ -1,25 +1,54 @@
 declare module 'content/routes.js' {
+  /**
+   * Defines the available `views` that can be used to set up routes.
+   * Each `Template` has different configuration options
+   */
   type Template = 
     | 'markdown'
 
-  type GenericRouteDefinition = {
+  /**
+   * Defines the shared options for a route
+   */
+  type SharedRouteDefinition = {
     id: string
     stylesheetUrls: string[]
     template: Template
   }
 
-  type MarkdownDefinition = GenericRouteDefinition & {
-    template: 'markdown'
+  /**
+   * Defines a content-based route
+   */
+  type ContentfulRouteDefintion = SharedRouteDefinition & {
     content: string
   }
 
+  /**
+   * Defines the config for a route using the `markdown` {@link Template}
+   */
+  type MarkdownDefinition = ContentfulRouteDefintion & {
+    template: 'markdown'
+  }
+
+  /**
+   * Defines all available route definitions
+   */
   type RouteDefinition =
     | MarkdownDefinition
 
+  /**
+   * Defines the collection of routes the app uses
+   */
   type RouteCollection = { [key: string]: RouteDefinition }
 
+  /**
+   * The routes the app uses
+   */
   const routes: RouteCollection
 
+  /**
+   * Defines an entry in the app header.
+   * Optionally recursive by defining children instead of path.
+   */
   type HeaderEntry = {
     displayName: string
   } & ({
@@ -28,5 +57,9 @@ declare module 'content/routes.js' {
     children: HeaderEntry[]
   })
 
+  /**
+   * The header the app uses.
+   * If not present, the header will not show.
+   */
   const header: HeaderEntry[]
 }