Server instructions added to IMcpClient (#17)

src/mcpdotnet/Client/IMcpClient.cs

@@ -25,6 +25,13 @@ public interface IMcpClient : IAsyncDisposable
     /// </summary>
     Implementation? ServerInfo { get; }
 
+    /// <summary>
+    /// Instructions describing how to use the server and its features.
+    /// This can be used by clients to improve the LLM's understanding of available tools, resources, etc. 
+    /// It can be thought of like a "hint" to the model. For example, this information MAY be added to the system prompt.
+    /// </summary>
+    string? ServerInstructions { get; }
+
     /// <summary>
     /// Gets or sets the handler for server sampling requests.
     /// </summary>

src/mcpdotnet/Client/McpClient.cs

@@ -37,6 +37,9 @@ internal class McpClient : IMcpClient
     /// <inheritdoc/>
     public Implementation? ServerInfo { get; private set; }
 
+    /// <inheritdoc/>
+    public string? ServerInstructions { get; private set; }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="McpClient"/> class.
     /// </summary>
@@ -154,6 +157,7 @@ internal class McpClient : IMcpClient
             _logger.ServerCapabilitiesReceived(_serverConfig.Id, _serverConfig.Name, JsonSerializer.Serialize(initializeResponse.Capabilities), JsonSerializer.Serialize(initializeResponse.ServerInfo));
             ServerCapabilities = initializeResponse.Capabilities;
             ServerInfo = initializeResponse.ServerInfo;
+            ServerInstructions = initializeResponse.Instructions;
 
             // Validate protocol version
             if (initializeResponse.ProtocolVersion != _options.ProtocolVersion)

src/mcpdotnet/mcpdotnet.csproj

@@ -9,7 +9,7 @@
   <PropertyGroup>
     <!-- license and package properties -->
     <PackageId>mcpdotnet</PackageId>
-    <Version>0.8.0.1</Version>
+    <Version>0.9.0.1</Version>
     <Authors>PederHP</Authors>
     <Description>.NET client library for the Model Context Protocol (MCP)</Description>
     <PackageProjectUrl>https://github.com/PederHP/mcpdotnet</PackageProjectUrl>