Update Slack AI agent documentation to clarify single app routing (#404)

* Update guides/ai-agents/getting-started.mdx

Co-Authored-By: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>

* Update references/integrations/slack-integration.mdx

Co-Authored-By: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>

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Co-authored-by: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>

Author: mintlify[bot]

guides/ai-agents/getting-started.mdx

@@ -182,4 +182,6 @@ Once you're set up - whether in the UI or in Slack - you can start asking questi
 
 ## Setting up multiple agents
 
-You can create multiple AI agents, each configured for different tasks, tones, languages, or teams. Each agent can have access to different datasets to focus results and give more accurate answers. Multiple AI agents can be used in the same Slack channel. Based on your question, the best agent to respond will be chosen - if it's unclear, you'll be prompted to choose which agent you'd like to answer.
+You can create multiple AI agents, each configured for different tasks, tones, languages, or teams. Each agent can have access to different datasets to focus results and give more accurate answers.
+
+Multiple AI agents can be used in the same Slack channel. When you mention the Lightdash app in Slack, you don't need to specify which agent you want to talk to - there's only one Lightdash Slack app name to mention. Lightdash automatically routes your question to the most appropriate agent based on your question. If it's unclear which agent should respond, you'll be prompted to choose which agent you'd like to answer.

references/integrations/slack-integration.mdx

@@ -117,7 +117,9 @@ In addition to scheduled deliveries, you can also set up [alerts on saved charts
 
 ## AI analyst agents
 
-The Slack integration is also used by AI analyst agents to chat with your data and build charts in Slack. Once you have access to AI analysts you can give them access to Slack threads in your integration settings. Remember, to trigger AI responses you need to mention the agent name in every message.
+The Slack integration is also used by AI analyst agents to chat with your data and build charts in Slack. Once you have access to AI analysts you can give them access to Slack threads in your integration settings.
+
+To trigger AI responses, mention the Lightdash app in your message. There's only one Lightdash Slack app name to mention - you don't need to specify a particular agent. Lightdash automatically routes your question to the most appropriate agent. If it's unclear which agent should respond, you'll be prompted to choose.
 
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