Update server.py

server.py

@@ -94,10 +94,10 @@ mcp = FastMCP("OnBase", port=port)
 @mcp.resource(
     uri="info://available_retrievers",
     name="AvailableRetrievers",
-    description="Lista completa de retrievers disponibles",
+    description="Lista de retrievers con metadatos (para uso interno)",
     mime_type="application/json"
 )
-def get_available_retrievers() -> dict:
+def _get_available_retrievers_internal() -> dict:
     available = []
     
     for source, indexes in retrievers_metadata.items():
@@ -117,6 +117,34 @@ def get_available_retrievers() -> dict:
         "count": len(available)
     }
 
+
+
+
+@mcp.tool()
+async def list_retrievers(ctx: Context) -> dict:
+    """
+    Devuelve la lista de retrievers disponibles incluyendo nombre, título y descripción.
+    
+    Returns:
+        dict: {
+            "retrievers": [{
+                "name": "vec_who_1",
+                "title": "WHO Technical Report.pdf",
+                "description": "..."
+            }],
+            "count": int
+        }
+    """
+    # Accede al resource internamente
+    resource = await ctx.read_resource("info://available_retrievers")
+    return {
+        "retrievers": resource["retrievers"],
+        "count": resource["count"]
+    }
+
+
+
+
 # Función principal de búsqueda
 @mcp.tool()
 def retrieve_docs(