> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/maps-and-imagery-fundamentals/maps-and-imagery-products-overview/metadata.md). # Metadata ISO 19115 compliant UK GEMINI discovery level metadata is provided for the data and can be found on the [AGI (The Association for Geographic Information) website](https://www.agi.org.uk/uk-gemini/). The following list gives a detailed description of the metadata elements provided on the AGI website: * **Title:** The title of the product. * **Abstract:** The abstract gives a brief description of the product. * **Currency:** The currency takes the form of date of last update for the feature. * **Lineage:** The lineage metadata takes the form of product specification name and date of product specification. * **Spatial extent:** The spatial extent is supplied in the form of geographic identifiers (for example, England, Scotland and Wales) and in the form of geographic coordinates. * **Spatial reference system:** The spatial reference system for all products takes the form of a British National Grid system, namely OSGB36. * **Data format:** Data format takes the form of the name of the format or formats the product is supplied in. * **Frequency of updates:** Frequency of updates takes the form of a stated period of time. * **Distributor’s contact details:** Distributor contact details include postal address, phone number, email address and website. * **Data originator:** Given as the company having primary responsibility for the intellectual content of the data source; in all cases, this will be Ordnance Survey. Other metadata available include keywords, start date of data capture, access constraints, use constraints, level of spatial data, supply media and presentation detail. --- # 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.os.uk/os-downloads/products/maps-and-imagery-portfolio/maps-and-imagery-fundamentals/maps-and-imagery-products-overview/metadata.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.