# Proxy/Upgrade Structure Given the nature of Hashstack's integrations, there was a requirement to have an upgrade structure robust enough to handle additions of integrations over time and the addition of new functionality frequently, while maintaining previous user balances without the need for migration. Therefore, the Open protocol is designed using the Modular Smart Contract standard, which closely mirrors the Diamond standard outlined in . There are two diamonds: the Open protocol diamond, which contains core Open functionality, and the L3-Integrations diamond, which contains all integration functionality, allowing us to independently add integrations or new functionality in a modular and seamless fashion. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.hashstack.finance/developers/proxy-upgrade-structure.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.