diff --git a/Sources/PrincipleMacros/Builders/Declarations/Common/DeclBuilder.swift b/Sources/PrincipleMacros/Builders/Declarations/Common/DeclBuilder.swift
index 79d66ba..5b1d20e 100644
--- a/Sources/PrincipleMacros/Builders/Declarations/Common/DeclBuilder.swift
+++ b/Sources/PrincipleMacros/Builders/Declarations/Common/DeclBuilder.swift
@@ -20,29 +20,10 @@ extension DeclBuilder {
 
     public var inheritedAccessControlLevel: TokenSyntax? {
         let settings = settings.accessControlLevel
-        guard let accessControlLevel = basicDeclaration.accessControlLevel,
-              let index = TokenKind.accessControlLevels.firstIndex(of: accessControlLevel.tokenKind),
-              let maxAllowedIndex = Keyword.accessControlLevels.firstIndex(of: settings.maxAllowed)
-        else {
-            return nil
-        }
-
-        guard index <= maxAllowedIndex else {
-            let tokenKind = TokenKind.accessControlLevels[maxAllowedIndex]
-            return TokenSyntax(tokenKind, presence: .present).withTrailingSpace
-        }
-
-        switch settings.inheritingDeclaration {
-        case .member:
-            if let internalIndex = Keyword.accessControlLevels.firstIndex(of: .internal),
-               index <= internalIndex {
-                return nil
-            }
-        case .peer:
-            break
-        }
-
-        return accessControlLevel.trimmed.withTrailingSpace
+        return basicDeclaration.accessControlLevel(
+            inheritedBy: settings.inheritingDeclaration,
+            maxAllowed: settings.maxAllowed
+        )
     }
 
     public var inheritedGlobalActorIsolation: AttributeSyntax? {
diff --git a/Sources/PrincipleMacros/Syntax/Extensions/WithModifiersSyntax.swift b/Sources/PrincipleMacros/Syntax/Extensions/WithModifiersSyntax.swift
index 8a1e020..8157f6a 100644
--- a/Sources/PrincipleMacros/Syntax/Extensions/WithModifiersSyntax.swift
+++ b/Sources/PrincipleMacros/Syntax/Extensions/WithModifiersSyntax.swift
@@ -41,23 +41,55 @@ extension WithModifiersSyntax {
     }
 }
 
+extension WithModifiersSyntax {
+
+    public func accessControlLevel(
+        inheritedBy inheritingDeclaration: InheritingDeclaration,
+        maxAllowed: Keyword
+    ) -> TokenSyntax? {
+        guard let accessControlLevel,
+              let index = TokenKind.accessControlLevels.firstIndex(of: accessControlLevel.tokenKind),
+              let maxAllowedIndex = Keyword.accessControlLevels.firstIndex(of: maxAllowed)
+        else {
+            return nil
+        }
+
+        guard index <= maxAllowedIndex else {
+            let tokenKind = TokenKind.accessControlLevels[maxAllowedIndex]
+            return TokenSyntax(tokenKind, presence: .present).withTrailingSpace
+        }
+
+        switch inheritingDeclaration {
+        case .member:
+            if let internalIndex = Keyword.accessControlLevels.firstIndex(of: .internal),
+               index <= internalIndex {
+                return nil
+            }
+        case .peer:
+            break
+        }
+
+        return accessControlLevel.trimmed.withTrailingSpace
+    }
+}
+
 extension TokenKind {
 
-    static let typeScopeSpecifiers = Keyword.typeScopeSpecifiers
+    fileprivate static let typeScopeSpecifiers = Keyword.typeScopeSpecifiers
         .map(TokenKind.keyword)
 
-    static let accessControlLevels = Keyword.accessControlLevels
+    fileprivate static let accessControlLevels = Keyword.accessControlLevels
         .map(TokenKind.keyword)
 }
 
 extension Keyword {
 
-    static let typeScopeSpecifiers: [Keyword] = [
+    fileprivate static let typeScopeSpecifiers: [Keyword] = [
         .static,
         .class
     ]
 
-    static let accessControlLevels: [Keyword] = [
+    fileprivate static let accessControlLevels: [Keyword] = [
         .private,
         .fileprivate,
         .internal,