There are 5 6 NINE (or 63*, depending how you count) different ways to write multi-line strings in YAML. TL;DR Use > if you want to break a string up for readability but for it to still be treated as a single-line string: interior line breaks will be stripped out, there will only be one line break at the end: key: > Your long string here. Use | if you want those line breaks to be preserved as \n (

