fix loop

pkg/tools/base.go

@@ -9,6 +9,20 @@ type Tool interface {
 	Execute(ctx context.Context, args map[string]interface{}) (string, error)
 }
 
+// ParallelSafeTool is an optional capability interface.
+// If implemented by a tool, AgentLoop should trust this declaration
+// over name-based whitelist when deciding parallel execution safety.
+type ParallelSafeTool interface {
+	ParallelSafe() bool
+}
+
+// ResourceScopedTool is an optional capability interface.
+// If implemented by a tool, AgentLoop can avoid running calls that touch
+// the same resource keys in parallel.
+type ResourceScopedTool interface {
+	ResourceKeys(args map[string]interface{}) []string
+}
+
 func ToolToSchema(tool Tool) map[string]interface{} {
 	return map[string]interface{}{
 		"type": "function",