diff --git a/adk/chatmodel.go b/adk/chatmodel.go
index 21c18eed..5691a816 100644
--- a/adk/chatmodel.go
+++ b/adk/chatmodel.go
@@ -53,6 +53,7 @@ type chatModelAgentRunOptions struct {
 	// run
 	chatModelOptions []model.Option
 	toolOptions      []tool.Option
+	toolList         []tool.BaseTool
 	agentToolOptions map[ /*tool name*/ string][]AgentRunOption // todo: map or list?
 
 	// resume
@@ -73,6 +74,13 @@ func WithToolOptions(opts []tool.Option) AgentRunOption {
 	})
 }
 
+// WithToolListOptions sets the runtime tool list for the chat model agent.
+func WithToolListOptions(tools []tool.BaseTool) AgentRunOption {
+	return WrapImplSpecificOptFn(func(t *chatModelAgentRunOptions) {
+		t.toolList = tools
+	})
+}
+
 // WithAgentToolRunOptions specifies per-tool run options for the agent.
 func WithAgentToolRunOptions(opts map[string] /*tool name*/ []AgentRunOption) AgentRunOption {
 	return WrapImplSpecificOptFn(func(t *chatModelAgentRunOptions) {
@@ -985,6 +993,9 @@ func getComposeOptions(opts []AgentRunOption) []compose.Option {
 	if len(to) > 0 {
 		co = append(co, compose.WithToolsNodeOption(compose.WithToolOption(to...)))
 	}
+	if len(o.toolList) > 0{
+		co = append(co,compose.WithToolsNodeOption(compose.WithToolList(o.toolList...)))
+	}
 	if o.historyModifier != nil {
 		co = append(co, compose.WithStateModifier(func(ctx context.Context, path compose.NodePath, state any) error {
 			s, ok := state.(*State)