Ensure all values to be changed are wrapped in placeholders

aux/placeholder.typ

@@ -14,3 +14,15 @@
     }
   )
 }
+
+// rawPlaceholder returns the very same value and type without altering it.
+// Has the ability to panic if panicOnPlaceholder is set to true.
+#let rawPlaceholder(value) = {
+  context(
+    if panicOnPlaceholder.get() {
+      panic("Found placeholder and panicOnPlaceholder is set.")
+    }
+  )
+
+  return value
+}

main.typ

@@ -1,7 +1,7 @@
 #import "addons/addons.typ"
 #import "pages/pages.typ"
 
-#import "aux/placeholder.typ": placeholder, panicOnPlaceholder
+#import "aux/placeholder.typ": placeholder, rawPlaceholder, panicOnPlaceholder
 
 // Project-specific variables
 #panicOnPlaceholder.update(false)
@@ -10,7 +10,7 @@
 #let targetFull = placeholder("Ellingson Mineral Corporation")
 #let targetInSentence = placeholder("Ellingston Mineral")
 #let reportType = placeholder("Penetration Test Report")
-#let creationDate = datetime.today()
+#let creationDate = rawPlaceholder(datetime.today())
 
 // Document setup
 #set document(
@@ -45,9 +45,9 @@
 
 // ----- Cover & Legal disclaimer(s) -----
 #pages.cover.render(targetFull, place, author, creationDate, reportType,
-  confidential: false, // set to true for a "CONFIDENTIAL" mark on the cover
-  tlp: "amber+strict", // set to one of "RED", "AMBER+STRICT", "AMBER", "GREEN", "CLEAR", or none. See https://www.first.org/tlp/
-  draft: true // set to true for a "DRAFT" mark on the cover
+  confidential: rawPlaceholder(false), // set to true for a "CONFIDENTIAL" mark on the cover
+  tlp: rawPlaceholder("amber+strict"), // set to one of "RED", "AMBER+STRICT", "AMBER", "GREEN", "CLEAR", or none. See https://www.first.org/tlp/
+  draft: rawPlaceholder(true) // set to true for a "DRAFT" mark on the cover
 )
 #pages.legal.render(author)
 
@@ -66,7 +66,7 @@
   start: placeholder("01.01.1970"),
   end: placeholder("31.12.1970"),
   setup: placeholder([Connection to #targetFull was made through a dedicated VPN connection. The inner IP address of the test device was 10.0.0.42.]),
-  nodes: ```
+  nodes: rawPlaceholder(```
     digraph G {
       rankdir=LR;
       node [shape=rectangle];
@@ -97,7 +97,7 @@
         Target4 -> Target8
       }
     }
-  ```,
+  ```),
   scope: (
       ( type: "Address", content: placeholder("10.23.42.1"), inScope: true ),
       ( type: "Address", content: placeholder("2001:db8::2342"), inScope: true ),