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

# Crisis

The crisis module halts the blockchain under the circumstance that a blockchain invariant is broken. Invariants can be registered with the application during the application initialization process.