diff --git a/src/Bicep.Types/Serialization/TypeJsonContext.cs b/src/Bicep.Types/Serialization/TypeJsonContext.cs
index 666d231d..a9047fd7 100644
--- a/src/Bicep.Types/Serialization/TypeJsonContext.cs
+++ b/src/Bicep.Types/Serialization/TypeJsonContext.cs
@@ -15,6 +15,7 @@ namespace Azure.Bicep.Types.Serialization;
 [JsonSerializable(typeof(ObjectType))]
 [JsonSerializable(typeof(FunctionType))]
 [JsonSerializable(typeof(ResourceFunctionType))]
+[JsonSerializable(typeof(NamespaceFunctionType))]
 [JsonSerializable(typeof(ResourceType))]
 [JsonSerializable(typeof(StringLiteralType))]
 [JsonSerializable(typeof(UnionType))]
diff --git a/src/bicep-types-go/writers/markdown.go b/src/bicep-types-go/writers/markdown.go
index c6524bf9..832397c3 100644
--- a/src/bicep-types-go/writers/markdown.go
+++ b/src/bicep-types-go/writers/markdown.go
@@ -330,6 +330,14 @@ func writeComplexType(md *markdownBuilder, typesList []types.Type, t types.Type,
 		}
 		md.writeBullet("Description", description)
 
+		if concrete.EvaluatedLanguageExpression != "" {
+			md.writeBullet("Evaluated language expression", fmt.Sprintf("`%s`", concrete.EvaluatedLanguageExpression))
+		}
+
+		if concrete.VisibleInFileKind != nil {
+			md.writeBullet("Visible only in bicep file kind", formatBicepSourceFileKind(*concrete.VisibleInFileKind))
+		}
+
 		if len(concrete.Parameters) > 0 {
 			md.writeHeading(nesting+1, "Parameters")
 			for i, param := range concrete.Parameters {
@@ -337,7 +345,14 @@ func writeComplexType(md *markdownBuilder, typesList []types.Type, t types.Type,
 				if err != nil {
 					return err
 				}
-				md.writeNumbered(i+1, param.Name, paramTypeName)
+				value := paramTypeName
+				if flags := formatNamespaceFunctionParameterFlags(param.Flags); flags != "" {
+					value += fmt.Sprintf(" (%s)", flags)
+				}
+				if param.Description != "" {
+					value += ": " + param.Description
+				}
+				md.writeNumbered(i+1, param.Name, value)
 			}
 		}
 
@@ -345,7 +360,7 @@ func writeComplexType(md *markdownBuilder, typesList []types.Type, t types.Type,
 		if err != nil {
 			return err
 		}
-		md.writeBullet("Output", outputTypeName)
+		md.writeBullet("Output type", outputTypeName)
 		md.writeNewLine()
 	case *types.ObjectType:
 		if includeHeader {
@@ -612,6 +627,37 @@ func getScopeTypeLabels(scope types.ScopeType) []string {
 	return result
 }
 
+func formatBicepSourceFileKind(kind types.BicepSourceFileKind) string {
+	switch kind {
+	case types.BicepSourceFileKindBicepFile:
+		return "BicepFile"
+	case types.BicepSourceFileKindParamsFile:
+		return "ParamsFile"
+	default:
+		return fmt.Sprintf("Unknown(%d)", int(kind))
+	}
+}
+
+func formatNamespaceFunctionParameterFlags(flags types.NamespaceFunctionParameterFlags) string {
+	labels := []struct {
+		flag  types.NamespaceFunctionParameterFlags
+		label string
+	}{
+		{types.NamespaceFunctionParameterFlagsRequired, "Required"},
+		{types.NamespaceFunctionParameterFlagsCompileTimeConstant, "CompileTimeConstant"},
+		{types.NamespaceFunctionParameterFlagsDeployTimeConstant, "DeployTimeConstant"},
+	}
+
+	names := make([]string, 0, len(labels))
+	for _, entry := range labels {
+		if flags&entry.flag == entry.flag {
+			names = append(names, entry.label)
+		}
+	}
+
+	return strings.Join(names, ", ")
+}
+
 func formatPropertyFlags(flags types.TypePropertyFlags) string {
 	labels := []struct {
 		flag  types.TypePropertyFlags
diff --git a/src/bicep-types/src/writers/markdown.ts b/src/bicep-types/src/writers/markdown.ts
index 7640fcf2..3c7d7c53 100644
--- a/src/bicep-types/src/writers/markdown.ts
+++ b/src/bicep-types/src/writers/markdown.ts
@@ -1,6 +1,6 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
-import { ArrayType, BuiltInType, DiscriminatedObjectType, getBuiltInTypeKindLabel, getObjectTypePropertyFlagsLabels, getScopeTypeLabels, ObjectTypeProperty, ObjectType, ResourceFunctionType, ResourceType, StringLiteralType, StringType, BicepType, TypeBaseKind, TypeIndex, TypeReference, UnionType, IntegerType, FunctionType, NamespaceFunctionType, TypeFile } from '../types';
+import { ArrayType, BuiltInType, DiscriminatedObjectType, getBuiltInTypeKindLabel, getNamespaceFunctionParameterFlagsLabels, getObjectTypePropertyFlagsLabels, getScopeTypeLabels, ObjectTypeProperty, ObjectType, ResourceFunctionType, ResourceType, StringLiteralType, StringType, BicepType, TypeBaseKind, TypeIndex, TypeReference, UnionType, IntegerType, FunctionType, NamespaceFunctionType, BicepSourceFileKind, TypeFile } from '../types';
 import { groupBy, orderBy } from '../utils';
 
 class MarkdownFile {
@@ -222,14 +222,22 @@ export function writeMarkdown(types: BicepType[], fileHeading?: string) {
         const namespaceFunctionType = type as NamespaceFunctionType;
         md.writeHeading(nesting, `Namespace Function ${namespaceFunctionType.name}`);
         md.writeBullet("Description", namespaceFunctionType.description || "(none)");
+        if (namespaceFunctionType.evaluatedLanguageExpression !== undefined) {
+          md.writeBullet("Evaluated language expression", `\`${namespaceFunctionType.evaluatedLanguageExpression}\``);
+        }
+        if (namespaceFunctionType.visibleInFileKind !== undefined) {
+          md.writeBullet("Visible only in bicep file kind", BicepSourceFileKind[namespaceFunctionType.visibleInFileKind]);
+        }
         if (namespaceFunctionType.parameters && namespaceFunctionType.parameters.length > 0) {
           md.writeHeading(nesting + 1, "Parameters");
           for (let i = 0; i < namespaceFunctionType.parameters.length; i++) {
             const param = namespaceFunctionType.parameters[i];
-            md.writeNumbered(i + 1, param.name, getTypeName(types, param.type));
+            const flagsString = param.flags ? ` (${getNamespaceFunctionParameterFlagsLabels(param.flags).join(', ')})` : '';
+            const descriptionString = param.description ? `: ${param.description}` : '';
+            md.writeNumbered(i + 1, param.name, `${getTypeName(types, param.type)}${flagsString}${descriptionString}`);
           }
         }
-        md.writeBullet("Output", getTypeName(types, namespaceFunctionType.outputType));
+        md.writeBullet("Output type", getTypeName(types, namespaceFunctionType.outputType));
 
         md.writeNewLine();
         return;
diff --git a/src/bicep-types/test/integration/baselines/foo/foo/types.md b/src/bicep-types/test/integration/baselines/foo/foo/types.md
index ce8cac22..a6b44b53 100644
--- a/src/bicep-types/test/integration/baselines/foo/foo/types.md
+++ b/src/bicep-types/test/integration/baselines/foo/foo/types.md
@@ -19,9 +19,11 @@
 
 ## Namespace Function binding
 * **Description**: Binding function
+* **Evaluated language expression**: `[externalInput('binding', parameters('bindingKey'))]`
+* **Visible only in bicep file kind**: ParamsFile
 ### Parameters
-1. **bindingKey**: string
-* **Output**: any
+1. **bindingKey**: string (Required): The binding key parameter
+* **Output type**: any
 
 ## def
 ### Properties