diff --git a/samples/csharp/hosted-agents/AgentFramework/AgentWithLocalTools/main.py b/samples/csharp/hosted-agents/AgentFramework/AgentWithLocalTools/main.py
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+++ b/samples/csharp/hosted-agents/AgentFramework/AgentWithLocalTools/main.py
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+# Optimization candidate C: load additional optimization skill file
+# Skill file: skills/optimization-additional-skill.md
diff --git a/samples/csharp/hosted-agents/AgentFramework/AgentWithLocalTools/skills/optimization-additional-skill.md b/samples/csharp/hosted-agents/AgentFramework/AgentWithLocalTools/skills/optimization-additional-skill.md
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+++ b/samples/csharp/hosted-agents/AgentFramework/AgentWithLocalTools/skills/optimization-additional-skill.md
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+# Additional Optimization Skill
+
+- Use retrieval when user intent references external facts.
+- Prefer concise outputs with explicit next actions.
+- Ask one clarification question when ambiguity blocks a direct answer.