> For the complete documentation index, see [llms.txt](https://docs.krnl.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.krnl.xyz/core-concepts.md).

# Core Concepts

- [Workflows](https://docs.krnl.xyz/core-concepts/workflows.md)
- [KRNL Node](https://docs.krnl.xyz/core-concepts/krnl-node.md)
- [Executors](https://docs.krnl.xyz/core-concepts/executors.md)
- [Attestor](https://docs.krnl.xyz/core-concepts/attestor.md)
- [Vault](https://docs.krnl.xyz/core-concepts/vault.md)