.Net: Bug: function_choice_behavior config not work

[MayueCif]

Describe the bug
agent-templates create agent,function_choice_behavior not work.

To Reproduce
yaml

execution_settings:
  default:
    temperature: 0.0
    top_p: 0.0
    top_k: 1
    function_choice_behavior:
      type: auto

Expected behavior

PromptTemplateConfig templateConfig = KernelFunctionYaml.ToPromptTemplateConfig(yamlContent);
ChatCompletionAgent chatCompletionAgent =
    new ChatCompletionAgent(templateConfig, new KernelPromptTemplateFactory())
    {
        Kernel = _kernel,
        Arguments = new KernelArguments
        {
            { "global_analysis_guidelines", globalGuidelines },
        }
    };

chatCompletionAgent InvokeAsync can not call function,Change to the following writing style

PromptTemplateConfig templateConfig = KernelFunctionYaml.ToPromptTemplateConfig(yamlContent);

var promptExecutionSettings = new OpenAIPromptExecutionSettings()
{
    FunctionChoiceBehavior = FunctionChoiceBehavior.Auto(options: new()
    {
        AllowParallelCalls = true,
        AllowStrictSchemaAdherence = true,
        RetainArgumentTypes = true
    })
};

ChatCompletionAgent chatCompletionAgent =
    new ChatCompletionAgent(templateConfig, new KernelPromptTemplateFactory())
    {
        Kernel = _kernel,
        Arguments = new KernelArguments
        {
            { "global_analysis_guidelines", globalGuidelines },
        }
    };

it work,why?

Platform

• Language: [C#]
• Source: [1.56.0]
• AI model: [Qwen3-32B]
• IDE: [Visual Studio,]
• OS: [Windows]

[SuvitKumar003]

Hi @MayueCif ,
Thanks for the amazing work on this agentic AI framework!

I came across what seems to be an inconsistency when configuring function_choice_behavior via YAML vs. programmatically.

When setting function_choice_behavior through YAML like this:
execution_settings:
default:
temperature: 0.0
top_p: 0.0
top_k: 1
function_choice_behavior:
type: auto
and then loading it using::
PromptTemplateConfig templateConfig = KernelFunctionYaml.ToPromptTemplateConfig(yamlContent);
ChatCompletionAgent chatCompletionAgent = new ChatCompletionAgent(templateConfig, new KernelPromptTemplateFactory())
{
Kernel = _kernel,
Arguments = new KernelArguments
{
{ "global_analysis_guidelines", globalGuidelines },
}
};
the InvokeAsync() call doesn't seem to trigger the function as expected.

However, when I configure it manually like this:
var promptExecutionSettings = new OpenAIPromptExecutionSettings()
{
FunctionChoiceBehavior = FunctionChoiceBehavior.Auto(options: new()
{
AllowParallelCalls = true,
AllowStrictSchemaAdherence = true,
RetainArgumentTypes = true
})
};
and attach that to the execution pipeline, the function executes correctly.
I had questions as well if @MayueCif you can help me in answering them
Is there something missing in the YAML-to-config pipeline that skips these function options?

Should FunctionChoiceBehavior.Auto options like AllowParallelCalls be explicitly supported in YAML?
Thanks for your time and response.

[MayueCif]

Hi @MayueCif , Thanks for the amazing work on this agentic AI framework!感谢您在这个自主式 AI 框架上的出色工作！

I came across what seems to be an inconsistency when configuring function_choice_behavior via YAML vs. programmatically.我发现通过 YAML 配置 function_choice_behavior 与通过编程配置时似乎存在不一致。

When setting function_choice_behavior through YAML like this:当通过 YAML 这样设置 function_choice_behavior： execution_settings:  执行设置： default:  默认： temperature: 0.0  温度：0.0 top_p: 0.0  top_p：0.0 top_k: 1 function_choice_behavior: type: auto and then loading it using::然后使用以下方式加载它： PromptTemplateConfig templateConfig = KernelFunctionYaml.ToPromptTemplateConfig(yamlContent); ChatCompletionAgent chatCompletionAgent = new ChatCompletionAgent(templateConfig, new KernelPromptTemplateFactory()) { Kernel = _kernel, Arguments = new KernelArguments { { "global_analysis_guidelines", globalGuidelines }, } }; the InvokeAsync() call doesn't seem to trigger the function as expected.调用 InvokeAsync() 似乎没有按预期触发函数。

However, when I configure it manually like this:然而，当我手动这样配置时： var promptExecutionSettings = new OpenAIPromptExecutionSettings() { FunctionChoiceBehavior = FunctionChoiceBehavior.Auto(options: new() { AllowParallelCalls = true, AllowStrictSchemaAdherence = true, RetainArgumentTypes = true }) }; and attach that to the execution pipeline, the function executes correctly.并将其附加到执行管道，函数可以正确执行。 I had questions as well if @MayueCif you can help me in answering them我也有问题，如果你能帮助我回答它们 Is there something missing in the YAML-to-config pipeline that skips these function options?YAML 到配置的流程中是否缺少某些功能选项，导致这些选项被跳过？

Should FunctionChoiceBehavior.Auto options like AllowParallelCalls be explicitly supported in YAML?FunctionChoiceBehavior.Auto 选项（如 AllowParallelCalls）是否应该在 YAML 中明确支持？ Thanks for your time and response.感谢您的时间和回复。

Sorry, I'm also seeking help