Add disclaimer about Duende Agent Skills and MCP Server reliability and testing recommendations

Author: maartenba

astro/src/content/docs/general/ai-agent-tools.mdx

@@ -258,3 +258,8 @@ For questions, feedback, or to report issues with either the Agent Skills or the
   title="Duende Community Forum"
   target="_blank"
 />
+
+## Disclaimer
+
+The Duende Agent Skills and Duende Documentation MCP Server extend the functionality of Large Language Model (LLM) agents and enhance the AI's "expertise",
+they are not a guarantee of reliability, safety, or accuracy. Always test skills thoroughly in your own environment before relying on them for critical tasks.