> ## Documentation Index
> Fetch the complete documentation index at: https://docs.genai.scale.com/llms.txt
> Use this file to discover all available pages before exploring further.

> A Message is a piece of content and [Annotations](/core-resources/annotation) that are relevant to that Message.

# Message

Messages represent the content that is sent to / returned from LLMs. They contain the message text, any associated files with the content, the author of the content, and the role in which the content applies.

[Annotations](/core-resources/annotation) at the Message level directly apply to this specific message. For example, the annotation for "response formatting" will be at this level.