bridges

Sky xchain-helpers

Audit Completed: 2026-08-21
Sky (MakerDAO) logo
Client: Sky (MakerDAO)
Platform / Language: Ethereum (Solidity)

ChainSecurity has been an invaluable partner throughout years of high-stakes product launches. We prize them for their proactivity, consistency & flexibility—we’re looking forward to continuing the partnership!

Deniz Yilmaz Tech lead (Sky)

About Sky xchain-helpers

Sky implements a library for cross-chain message passing along with contracts able to receive cross-chain messages. The latest version reviewed adds support for the Sky LayerZero governance bridge.

Audit Summary

The most critical subjects covered in our audit are integration with the supported bridges, access control and functional correctness. The general subjects covered are unit testing, documentation and trustworthiness. Security regarding all the aforementioned subjects is high.

In summary, we find that the codebase provides a good level of security.

It is important to note that security audits are time-boxed and cannot uncover all vulnerabilities. They complement but don’t replace other vital measures to secure a project.