diff --git a/mcp-servers/navi-3d/app/mcp_server.py b/mcp-servers/navi-3d/app/mcp_server.py
index c70d63f..508e3ab 100644
--- a/mcp-servers/navi-3d/app/mcp_server.py
+++ b/mcp-servers/navi-3d/app/mcp_server.py
@@ -45,7 +45,7 @@
     return Settings()
 
 
-@mcp.tool()
+@mcp.tool(name="compile_scad")
 def compile_scad_tool(
     session_id: Annotated[str, Field(description="Navi session ID — files are resolved inside session_files/<session_id>/.")],
     source_path: Annotated[str, Field(description="Relative or absolute path to the .scad file.")],
@@ -56,7 +56,7 @@
     return _json(result)
 
 
-@mcp.tool()
+@mcp.tool(name="render_stl")
 def render_stl_tool(
     session_id: Annotated[str, Field(description="Navi session ID — files are resolved inside session_files/<session_id>/.")],
     source_path: Annotated[str, Field(description="Path to the STL file to render.")],
@@ -67,7 +67,7 @@
     return _json(result)
 
 
-@mcp.tool()
+@mcp.tool(name="lint_scad")
 def lint_scad_tool(
     session_id: Annotated[str, Field(description="Navi session ID — files are resolved inside session_files/<session_id>/.")],
     source_path: Annotated[str, Field(description="Path to the .scad file.")],