> For the complete documentation index, see [llms.txt](https://docs.symm.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.symm.io/contract-documentation/symmio-perps-v0.8.5/diamond-core-facets.md). # Diamond Core Facets Facets are an essential component of the Diamond architecture, allowing functions to execute logic on the Diamond’s storage. Each facet contract is paired with an associated implementation contract that encapsulates the logic component of the facet. *** ### Overview Facets serve as modular units within the Diamond architecture. Their design allows for isolated updates to specific areas of the system without necessitating a full redeployment of the contract. This modularity is key to maintaining system flexibility and ensuring that enhancements can be applied with minimal disruption. *** ### Functionality and Implementation Each facet is responsible for managing a distinct segment of the system’s functionality. The corresponding implementation contract handles the logic, ensuring that: * Facets can adjust the Diamond’s storage in a targeted manner. * Isolated updates are made possible, reducing the risk of widespread system impact during modifications. * The separation of logic and storage responsibilities streamlines both development and troubleshooting. The following sections will delve into the specifics of SYMM’s facet contracts, outlining the functions within each and how they interact with the Diamond’s core architecture. *** --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## 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, and the optional `goal` query parameter: ``` GET https://docs.symm.io/contract-documentation/symmio-perps-v0.8.5/diamond-core-facets.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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.