diff --git a/OpenNest.Mcp/Tools/InputTools.cs b/OpenNest.Mcp/Tools/InputTools.cs
index 3024737..e3f1a28 100644
--- a/OpenNest.Mcp/Tools/InputTools.cs
+++ b/OpenNest.Mcp/Tools/InputTools.cs
@@ -10,6 +10,7 @@ using CncProgram = OpenNest.CNC.Program;
 
 namespace OpenNest.Mcp.Tools
 {
+    [McpServerToolType]
     public class InputTools
     {
         private readonly NestSession _session;
diff --git a/OpenNest.Mcp/Tools/InspectionTools.cs b/OpenNest.Mcp/Tools/InspectionTools.cs
index 3968a7f..50c95eb 100644
--- a/OpenNest.Mcp/Tools/InspectionTools.cs
+++ b/OpenNest.Mcp/Tools/InspectionTools.cs
@@ -8,6 +8,7 @@ using OpenNest.Math;
 
 namespace OpenNest.Mcp.Tools
 {
+    [McpServerToolType]
     public class InspectionTools
     {
         private readonly NestSession _session;
diff --git a/OpenNest.Mcp/Tools/NestingTools.cs b/OpenNest.Mcp/Tools/NestingTools.cs
index 893823d..46b865d 100644
--- a/OpenNest.Mcp/Tools/NestingTools.cs
+++ b/OpenNest.Mcp/Tools/NestingTools.cs
@@ -7,6 +7,7 @@ using OpenNest.Geometry;
 
 namespace OpenNest.Mcp.Tools
 {
+    [McpServerToolType]
     public class NestingTools
     {
         private readonly NestSession _session;
diff --git a/OpenNest.Mcp/Tools/SetupTools.cs b/OpenNest.Mcp/Tools/SetupTools.cs
index ab2a1ad..d093738 100644
--- a/OpenNest.Mcp/Tools/SetupTools.cs
+++ b/OpenNest.Mcp/Tools/SetupTools.cs
@@ -5,6 +5,7 @@ using OpenNest.Geometry;
 
 namespace OpenNest.Mcp.Tools
 {
+    [McpServerToolType]
     public class SetupTools
     {
         private readonly NestSession _session;