> For the complete documentation index, see [llms.txt](https://cc32d9.gitbook.io/antelope-smart-contract-developers-handbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cc32d9.gitbook.io/antelope-smart-contract-developers-handbook/design-guidelines.md).

# Design guidelines

- [Smart contract security](https://cc32d9.gitbook.io/antelope-smart-contract-developers-handbook/design-guidelines/smart-contract-security.md)
- [Data design](https://cc32d9.gitbook.io/antelope-smart-contract-developers-handbook/design-guidelines/data-design.md)
- [Performance optimization](https://cc32d9.gitbook.io/antelope-smart-contract-developers-handbook/design-guidelines/performance-optimization.md)
- [Customizing the Antelope software](https://cc32d9.gitbook.io/antelope-smart-contract-developers-handbook/design-guidelines/customizing-the-antelope-software.md)