# Usage Notes - [Developing with SSE](https://engine.sygnal.com/usage/developing-with-sse.md): The basics of developing with Sygnal Site Engine. - [Building & Deploying Code](https://engine.sygnal.com/usage/building-and-deploying-code.md) - [Functional Interactions (FIX)](https://engine.sygnal.com/usage/functional-interactions-fix.md) - [FIX Elements](https://engine.sygnal.com/usage/functional-interactions-fix/fix-elements.md) - [Code Structure](https://engine.sygnal.com/usage/code-structure.md) - [Page Router](https://engine.sygnal.com/usage/page-router.md) - [Components](https://engine.sygnal.com/usage/components.md) - [Components Future Notes](https://engine.sygnal.com/usage/components/components-future-notes.md) - [Source Structure & Key Files](https://engine.sygnal.com/usage/source-structure-and-key-files.md) - [Utilities](https://engine.sygnal.com/usage/source-structure-and-key-files/utilities.md) - [Route Dispatcher](https://engine.sygnal.com/usage/source-structure-and-key-files/route-dispatcher.md) - [Infrastructure](https://engine.sygnal.com/usage/source-structure-and-key-files/infrastructure.md) - [Usage Notes](https://engine.sygnal.com/usage/source-structure-and-key-files/usage-notes.md) - [SCSS](https://engine.sygnal.com/usage/scss.md) - [Useful Library Additions](https://engine.sygnal.com/usage/useful-library-additions.md) - [Adding Libraries](https://engine.sygnal.com/usage/useful-library-additions/adding-libraries.md) - [Luxon](https://engine.sygnal.com/usage/useful-library-additions/luxon.md) - [Cookies](https://engine.sygnal.com/usage/useful-library-additions/cookies.md) - [Core Libraries](https://engine.sygnal.com/usage/useful-library-additions/core-libraries.md): These are included in the base Engine configuration. - [Extending Capabilities](https://engine.sygnal.com/usage/useful-library-additions/extending-capabilities.md) - [Best Practices](https://engine.sygnal.com/usage/best-practices.md) - [Sygnal DevTools](https://engine.sygnal.com/usage/sygnal-devtools.md) - [Unit Testing](https://engine.sygnal.com/usage/unit-testing.md) - [Using Google Sheets as a Unit Test Data Source](https://engine.sygnal.com/usage/unit-testing/using-google-sheets-as-a-unit-test-data-source.md) - [Datetime & Timezone Tests](https://engine.sygnal.com/usage/unit-testing/datetime-and-timezone-tests.md) - [Best Practices](https://engine.sygnal.com/usage/unit-testing/best-practices.md) - [Page 1](https://engine.sygnal.com/usage/unit-testing/page-1.md) --- # 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://engine.sygnal.com/usage.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.