# Reliability > For AI agents: the complete glossary index is at [llms.txt](https://glossary.cncf.io/llms.txt). > Markdown versions of every glossary page are available by appending `index.md` to the page URL. From a cloud native perspective, reliability refers to how well a system responds to failures. If we have a [distributed system](https://glossary.cncf.io/distributed-systems/) that keeps working as infrastructure changes and individual components fail, it is reliable. On the other hand, if it fails easily and operators need to intervene manually to keep it running, it is unreliable. The goal of [cloud native applications](https://glossary.cncf.io/cloud-native-apps/) is to build inherently reliable systems. ## In sign language Video: **Note**: While each country has its own sign language we, the [Deaf/Hoh Working Group](https://contribute.cncf.io/accessibility/deaf-and-hard-of-hearing/), aim to standardize signs for new cloud-native terms for global use. --- - Canonical URL: https://glossary.cncf.io/reliability/ - Status: Completed - Last modified March 12, 2025: ` Initial release of the Sign Language feature (#3406) ` ([763d1bd](https://github.com/cncf/glossary/commit/763d1bdb618baee8735476d443676d5a6465799a)) - Source: https://github.com/cncf/glossary/blob/main/content/en/reliability.md - License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)