> For the complete documentation index, see [llms.txt](https://no0dles.gitbook.io/hammerkit/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://no0dles.gitbook.io/hammerkit/specs/task/needs.md).

# needs

A task can declare needs on services. Hammerkit starts the services and waits until they are ready before the task runs.