[8.19] Replace default quick prompts with prompt tiles

docs/AI-for-security/ai-security-assistant.asciidoc

@@ -83,19 +83,19 @@ NOTE: Each user's chat history (up to the 99 most recent conversations) and cust
 [[interact-with-assistant]]
 == Interact with AI Assistant
 
-Use these features to adjust and act on your conversations with AI Assistant:
+Use these optional features to adjust and act on your conversations with AI Assistant:
 
-* (Optional) Select a _System Prompt_ at the beginning of a conversation by using the **Select Prompt** menu. System Prompts provide context to the model, informing its response. To create a System Prompt, open the System Prompts dropdown menu and click *+ Add new System Prompt...*.
-* (Optional) Select a _Quick Prompt_ at the bottom of the chat window to get help writing a prompt for a specific purpose, such as summarizing an alert or converting a query from a legacy SIEM to {elastic-sec}.
-+
-[role="screenshot"]
-image::images/quick-prompts.png[Quick Prompts highlighted below a conversation,90%]
-+
-* System Prompts and Quick Prompts can also be configured from the corresponding tabs on the **Security AI settings** page.
-+
-image::images/assistant-settings-system-prompts.png[The Security AI settings menu's System Prompts tab,90%]
-+
-* Quick Prompt availability varies based on context—for example, the **Alert summarization** Quick Prompt appears when you open AI Assistant while viewing an alert. To customize existing Quick Prompts and create new ones, click *Add Quick Prompt*.
+* Select a _System Prompt_ at the beginning of a conversation by using the **Select Prompt** menu. System Prompts provide context to the model, informing its response. To create a System Prompt, open the System Prompts dropdown menu and click *+ Add new System Prompt...*.
+* Select a _prompt tile_ to start your conversation with a predefined goal or topic. Prompt tiles help you begin structured tasks or investigations into common {elastic-sec} workflows. The available prompt tiles include:
+
+** **Alerts**: Quickly identify and prioritize the most important alerts from the last 24 hours.
+** **Research**: Get a summary of the latest {elastic-sec} Labs research articles.
+** **Query**: Generate {esql} queries based on a specific goal or requirement.
+** **Suggest**: Explore the types of questions you can ask AI Assistant about {elastic-sec}.
+
+* Create new custom Quick Prompts by clicking **Add quick prompt**.
+
+TIP: System Prompts and Quick Prompts can also be configured from the corresponding tabs on the **Security AI settings** page.
 
 * In an active conversation, you can use the inline actions that appear on messages to incorporate AI Assistant's responses into your workflows: