# Overview - [What is coherence?](https://docs.coherence.io/1.0/overview/what-is-coherence.md) - [How does coherence work?](https://docs.coherence.io/1.0/overview/how-does-coherence-work.md) - [Rooms and Worlds](https://docs.coherence.io/1.0/overview/rooms-and-worlds.md): coherence provides two types of online replication services: Rooms and Worlds. Read about the different uses cases for each. - [Features and Roadmap](https://docs.coherence.io/1.0/overview/roadmap.md) - [Release Notes](https://docs.coherence.io/1.0/overview/release-notes.md): Read about new features, important changes and fixes for version 1.0 - [Known Issues and Troubleshooting](https://docs.coherence.io/1.0/overview/troubleshooting.md): Tips on how to handle common problems --- # 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.coherence.io/1.0/overview.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.