update AI agent data access (#83)

Author: jpetey75

guides/ai-agents.mdx

@@ -16,6 +16,12 @@ Ask questions about your data, and it will:
 * Present results in the most insightful format, whether that's a visualization, table, or natural language summary
 * Ask clarifying questions when needed to ensure you get exactly what you're looking for
 
+<Info>
+AI Agents in the Lightdash app will follow row-level, column-level, and table-level data access based on [user attributes](/references/user-attributes). 
+
+In Slack, the AI will have the user attributes of the user who set up the agent. We plan to respect user attributes based on Slack user email in the future, reach out if you need that feature! 
+</Info>
+
 
 ## Preparing your data for AI