diff --git a/xml/System/IntPtr.xml b/xml/System/IntPtr.xml
index 6f11c818544..893532131f2 100644
--- a/xml/System/IntPtr.xml
+++ b/xml/System/IntPtr.xml
@@ -2193,12 +2193,13 @@ This member is an explicit interface member implementation. It can be used only
         <Parameter Name="provider" Type="System.IFormatProvider" Index="3" FrameworkAlternate="net-6.0" />
       </Parameters>
       <Docs>
-        <param name="destination">To be added.</param>
-        <param name="charsWritten">To be added.</param>
-        <param name="format">To be added.</param>
-        <param name="provider">To be added.</param>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <param name="destination">The span where this instance's value formatted as a span of characters should be written.</param>
+        <param name="charsWritten">When this method returns, contains the number of characters that were written in <paramref name="destination" />.</param>
+        <param name="format">The characters that represent a standard or custom format string that defines the acceptable format for <paramref name="destination" />.</param>
+        <param name="provider">An optional object that supplies culture-specific formatting information for <paramref name="destination" />.</param>
+        <summary>Tries to format the value of the current instance into the provided span of characters.</summary>
+        <returns>
+          <see langword="true" /> if the formatting was successful; otherwise, <see langword="false" />.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
diff --git a/xml/System/MemoryExtensions+TryWriteInterpolatedStringHandler.xml b/xml/System/MemoryExtensions+TryWriteInterpolatedStringHandler.xml
index 0c3b433675b..6f597d16579 100644
--- a/xml/System/MemoryExtensions+TryWriteInterpolatedStringHandler.xml
+++ b/xml/System/MemoryExtensions+TryWriteInterpolatedStringHandler.xml
@@ -31,7 +31,7 @@
     </Attribute>
   </Attributes>
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Provides a handler used by the language compiler to format interpolated strings into character spans.</summary>
     <remarks>To be added.</remarks>
   </Docs>
   <Members>
@@ -135,9 +135,9 @@
         <Parameter Name="value" Type="System.String" />
       </Parameters>
       <Docs>
-        <param name="value">To be added.</param>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <param name="value">The value to write.</param>
+        <summary>Writes the specified value to the handler.</summary>
+        <returns><see langword="true"/> on success; <see langword="false"/> otherwise.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -161,11 +161,11 @@
         <Parameter Name="format" Type="System.String" />
       </Parameters>
       <Docs>
-        <param name="value">To be added.</param>
-        <param name="alignment">To be added.</param>
-        <param name="format">To be added.</param>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <param name="value">The value to write.</param>
+        <param name="alignment">The minimum number of characters that should be written for this value. A negative value indicates left-aligned, and the required minimum is the absolute value.</param>
+        <param name="format">The format string.</param>
+        <summary>Writes the specified value to the handler.</summary>
+        <returns><see langword="true"/> on success; <see langword="false"/> otherwise.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -217,11 +217,11 @@
         <Parameter Name="format" Type="System.String" />
       </Parameters>
       <Docs>
-        <param name="value">To be added.</param>
-        <param name="alignment">To be added.</param>
-        <param name="format">To be added.</param>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <param name="value">The value to write.</param>
+        <param name="alignment">The minimum number of characters that should be written for this value. A negative value indicates left-aligned, and the required minimum is the absolute value.</param>
+        <param name="format">The format string.</param>
+        <summary>Writes a specified value to the handler using a specified format string.</summary>
+        <returns><see langword="true"/> on success; <see langword="false"/> otherwise.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -247,10 +247,10 @@
         <Parameter Name="value" Type="T" />
       </Parameters>
       <Docs>
-        <typeparam name="T">To be added.</typeparam>
-        <param name="value">To be added.</param>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <typeparam name="T">The type of the value to write.</typeparam>
+        <param name="value">The value to write.</param>
+        <summary>Writes the specified value to the handler.</summary>
+        <returns><see langword="true"/> on success; <see langword="false"/> otherwise.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -277,10 +277,10 @@
         <Parameter Name="alignment" Type="System.Int32" />
       </Parameters>
       <Docs>
-        <typeparam name="T">To be added.</typeparam>
-        <param name="value">To be added.</param>
-        <param name="alignment">To be added.</param>
-        <summary>To be added.</summary>
+        <typeparam name="T">The type of the value to write.</typeparam>
+        <param name="value">The value to write.</param>
+        <param name="alignment">The minimum number of characters that should be written for this value.A negative value indicates left-aligned, and the required minimum is the absolute value.</param>
+        <summary>Writes the specified value to the handler.</summary>
         <returns>To be added.</returns>
         <remarks>To be added.</remarks>
       </Docs>
@@ -308,11 +308,11 @@
         <Parameter Name="format" Type="System.String" />
       </Parameters>
       <Docs>
-        <typeparam name="T">To be added.</typeparam>
-        <param name="value">To be added.</param>
-        <param name="format">To be added.</param>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <typeparam name="T">The type of the value to write.</typeparam>
+        <param name="value">The value to write.</param>
+        <param name="format">The format string.</param>
+        <summary>Writes a specified value to the handler using a specified format string.</summary>
+        <returns><see langword="true"/> on success; <see langword="false"/> otherwise.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -340,12 +340,12 @@
         <Parameter Name="format" Type="System.String" />
       </Parameters>
       <Docs>
-        <typeparam name="T">To be added.</typeparam>
-        <param name="value">To be added.</param>
-        <param name="alignment">To be added.</param>
-        <param name="format">To be added.</param>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <typeparam name="T">The type of the value to write.</typeparam>
+        <param name="value">The value to write.</param>
+        <param name="alignment">The minimum number of characters that should be written for this value. A negative value indicates left-aligned, and the required minimum is the absolute value.</param>
+        <param name="format">The format string.</param>
+        <summary>Writes a specified value to the handler using a specified format string.</summary>
+        <returns><see langword="true"/> on success; <see langword="false"/> otherwise.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -368,9 +368,10 @@
         <Parameter Name="value" Type="System.String" />
       </Parameters>
       <Docs>
-        <param name="value">To be added.</param>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <param name="value">The string to write.</param>
+        <summary>Writes the specified string to the handler.</summary>
+        <returns>
+          <see langword="true" /> if the value could be formatted to the span; otherwise, <see langword="false" />.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>