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

# Parameter resolvers

- [Built-in parameter resolvers](https://docs.takomo.io/parameter-resolvers/built-in-parameter-resolvers.md)
- [Stack output resolver](https://docs.takomo.io/parameter-resolvers/built-in-parameter-resolvers/stack-output-resolver.md)
- [External stack output resolver](https://docs.takomo.io/parameter-resolvers/built-in-parameter-resolvers/external-stack-output-resolver.md)
- [Command resolver](https://docs.takomo.io/parameter-resolvers/built-in-parameter-resolvers/command-resolver.md)
- [File contents resolver](https://docs.takomo.io/parameter-resolvers/built-in-parameter-resolvers/file-contents-resolver.md)
- [Hook output resolver](https://docs.takomo.io/parameter-resolvers/built-in-parameter-resolvers/hook-output-resolver.md)
- [SSM parameter resolver](https://docs.takomo.io/parameter-resolvers/built-in-parameter-resolvers/ssm-parameter-resolver.md)
- [Secret resolver](https://docs.takomo.io/parameter-resolvers/built-in-parameter-resolvers/secret-resolver.md)
- [Custom parameter resolvers](https://docs.takomo.io/parameter-resolvers/custom-parameter-resolvers.md)