add missing namespace summaries

Author: gewarren

xml/ns-System.Cloud.DocumentDb.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.Cloud.DocumentDb">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides types and interfaces for managing document-oriented (NoSQL) databases, including database configuration, query execution, transactional operations, and exception handling. </summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.Cloud.Messaging.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.Cloud.Messaging">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides types and extension methods for building and managing asynchronous message processing pipelines.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.Collections.Frozen.xml

@@ -1,6 +1,8 @@
 <Namespace Name="System.Collections.Frozen">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>
+      Contains types that provide immutable, read-only collections optimized for fast lookup and enumeration.
+    </summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.CommandLine.Binding.xml

@@ -1,6 +1,9 @@
 <Namespace Name="System.CommandLine.Binding">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>
+      Provides types for binding command-line input to objects, including support for custom types,
+      binding contexts, and value descriptors.
+    </summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.CommandLine.Builder.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.CommandLine.Builder">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides classes and extension methods for building and configuring command-line applications.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.CommandLine.Completions.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.CommandLine.Completions">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides types and interfaces for command-line completion operations, including contexts, items, and sources for generating completions.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.CommandLine.Help.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.CommandLine.Help">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides types and methods for formatting and displaying command-line help.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.CommandLine.IO.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.CommandLine.IO">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides types for working with standard input, output, and error streams, including in-memory and console-based implementations.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.CommandLine.Invocation.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.CommandLine.Invocation">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides types for handling command invocation, including context, handlers, results, middleware, and middleware ordering.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.CommandLine.Parsing.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.CommandLine.Parsing">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides types and methods for parsing command-line input, including arguments, options, commands, and tokens.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.CommandLine.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.CommandLine">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides types for defining commands, options, arguments, and their relationships in command-line applications.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.Formats.Nrbf.xml

@@ -1,6 +1,9 @@
 <Namespace Name="System.Formats.Nrbf">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>
+      Provides classes and utilities for working with .NET Remoting Binary Format (NRBF) encoded data,
+      including support for decoding payloads, handling serialization records, and managing array and class records.
+    </summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.Net.ServerSentEvents.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.Net.ServerSentEvents">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides classes and delegates for working with server-sent events, including formatting, parsing, and representing event data.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.Numerics.Tensors.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.Numerics.Tensors">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides types and methods for tensor operations and memory management.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.Runtime.Diagnostics.xml

@@ -1,6 +1,6 @@
 <Namespace Name="System.Text.Json.Schema">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides functionality for generating JSON schema objects from .NET types using metadata and context.</summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>

xml/ns-System.Runtime.Intrinsics.Arm.Arm64.xml

@@ -1,6 +1,8 @@
 <Namespace Name="System.Text.Json.Serialization.Metadata">
   <Docs>
-    <summary>To be added.</summary>
+    <summary>
+      Contains classes, structs, and interfaces that provide metadata and configuration for JSON serialization and deserialization in System.Text.Json.
+    </summary>
     <remarks>To be added.</remarks>
   </Docs>
 </Namespace>