fix anthropic tools

Author: SamSaffron

lib/completions/dialects/claude_tools.rb

@@ -14,22 +14,21 @@ def translated_tools
             properties = {}
             required = []
 
-            if t[:parameters]
+            if t.parameters
               properties = {}
 
-              t[:parameters].each do |param|
-                mapped = { type: param[:type], description: param[:description] }
-                mapped[:items] = { type: param[:item_type] } if param[:item_type]
-                mapped[:enum] = param[:enum] if param[:enum]
-                properties[param[:name]] = mapped
+              t.parameters.each do |param|
+                mapped = { type: param.type, description: param.description }
+                mapped[:items] = { type: param.item_type } if param.item_type
+                mapped[:enum] = param.enum if param.enum
+                properties[param.name] = mapped
               end
-              required =
-                t[:parameters].select { |param| param[:required] }.map { |param| param[:name] }
+              required = t.parameters.select { |param| param.required }.map { |param| param.name }
             end
 
             {
-              name: t[:name],
-              description: t[:description],
+              name: t.name,
+              description: t.description,
               input_schema: {
                 type: "object",
                 properties: properties,