update

src/agentCore.jl

@@ -516,7 +516,7 @@ function prepareToolCall(
     signal::Union{Nothing, abortSignal},
 )::Union{preparedToolCall,immediateOutcome}
 
-    tool = find(t -> t.name == toolCall.name, context.tools)
+    tool = get(context.tools, toolCall.name, nothing)
     if tool === nothing
         return immediateOutcome(createErrorToolResult("Tool $toolCall.name not found"), true)
     end
@@ -996,13 +996,9 @@ function executeToolCalls(
 
     hasSequential = false
     for tc in toolCalls
-        for t in context.tools
-            if t.name == tc.name && !t.parallelToolExecute
-                hasSequential = true
-                break
-            end
-        end
-        if hasSequential
+        t = get(context.tools, tc.name, nothing)
+        if t !== nothing && !t.parallelToolExecute
+            hasSequential = true
             break
         end
     end