Suggest: Add "Build your own AI Agent" section

[MegumiKato923]

AI Agents are becoming a major part of the ecosystem. It would be great to have a dedicated section or more tutorials focused on building AI agents from scratch, covering topics like planning, tool use, and memory.

[vedantDeogade]

@MegumiKato923, I’m interested in working on this issue. I’d love to contribute by creating documentation focused on building AI agents from scratch, including aspects like planning, tool usage, memory and others.
Please let me know if I can proceed or if you have any specific guidelines or expectations.