Add AI Chat guide

docs/use-cases/AI_ML/AIChat/index.md

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+---
+slug: /use-cases/AI_ML/AIChat
+sidebar_label: 'AI Chat'
+title: 'Using AI Chat in ClickHouse Cloud'
+pagination_prev: null
+pagination_next: null
+description: 'Guide to enabling and using the AI Chat feature in ClickHouse Cloud Console'
+keywords: ['AI', 'ClickHouse Cloud', 'Chat', 'SQL Console', 'Agent', 'Docs AI']
+show_related_blogs: true
+sidebar_position: 2
+---
+
+import Link from '@docusaurus/Link';
+import Image from '@theme/IdealImage';
+import img_open from '@site/static/images/use-cases/AI_ML/AIChat/1_open_chat.png';
+import img_consent from '@site/static/images/use-cases/AI_ML/AIChat/2_consent.png';
+import img_modes from '@site/static/images/use-cases/AI_ML/AIChat/3_modes.png';
+import img_thinking from '@site/static/images/use-cases/AI_ML/AIChat/4_thinking.png';
+import img_history from '@site/static/images/use-cases/AI_ML/AIChat/5_history.png';
+import img_result_actions from '@site/static/images/use-cases/AI_ML/AIChat/6_result_actions.png';
+import img_new_tab from '@site/static/images/use-cases/AI_ML/AIChat/7_open_in_editor.png';
+
+# Using AI Chat in ClickHouse Cloud
+
+> This guide explains how to enable and use the AI Chat feature in the ClickHouse Cloud Console.
+
+<VerticalStepper headerLevel="h2">
+
+## Prerequisites {#prerequisites}
+
+1. You must have access to a ClickHouse Cloud organization with AI features enabled (contact your org admin or support if unavailable).
+
+## Open the AI Chat panel {#open-panel}
+
+1. Navigate to a ClickHouse Cloud service.
+2. In the left sidebar, click the sparkle icon labeled “Ask AI”.
+3. (Shortcut) Press <kbd>⌘</kbd> + <kbd>'</kbd> (macOS) or <kbd>Ctrl</kbd> + <kbd>'</kbd> (Linux/Windows) to toggle open.
+
+<Image img={img_open} alt="Open AI Chat flyout" size="md"/>
+
+## Accept the data usage consent (first run) {#consent}
+
+1. On first use you are prompted with a consent dialog describing data handling and third‑party LLM sub-processors.
+2. Review and accept to proceed. If you decline, the panel will not open.
+
+<Image img={img_consent} alt="Consent dialog" size="md"/>
+
+## Choose a chat mode {#modes}
+
+AI Chat currently supports:
+
+- **Agent**: Multi‑step reasoning over schema + metadata (service must be awake).
+- **Docs AI (Ask)**: Focused Q&A grounded in official ClickHouse documentation and best‑practice references.
+
+Use the mode selector at the bottom-left of the flyout to switch.
+
+<Image img={img_modes} alt="Mode selection" size="sm"/>
+
+## Compose and send a message {#compose}
+
+1. Type your question (e.g. “Create a materialized view to aggregate daily events by user”).  
+2. Press <kbd>Enter</kbd> to send (use <kbd>Shift</kbd> + <kbd>Enter</kbd> for a newline).  
+3. While the model is processing you can click “Stop” to interrupt.
+
+## Understanding “Agent” thinking steps {#thinking-steps}
+
+In Agent mode you may see expandable intermediate “thinking” or planning steps. These provide transparency into how the assistant forms its answer. Collapse or expand as needed.
+
+<Image img={img_thinking} alt="Thinking steps" size="md"/>
+
+## Starting new chats {#new-chats}
+
+Click the “New Chat” button to clear context and begin a fresh session.
+
+## Viewing chat history {#history}
+
+1. The lower section lists your recent chats.
+2. Select a previous chat to load its messages.
+3. Delete a conversation using the trash icon.
+
+<Image img={img_history} alt="Chat history list" size="md"/>
+
+## Working with generated SQL {#sql-actions}
+
+When the assistant returns SQL:
+
+- Review for correctness.
+- Click “Open in editor” to load the query into a new SQL tab.
+- Modify and execute within the Console.
+
+<Image img={img_result_actions} alt="Result actions" size="md"/>
+
+<Image img={img_new_tab} alt="Open generated query in editor" size="md"/>
+
+## Stopping or interrupting a response {#interrupt}
+
+If a response is taking too long or diverging:
+
+1. Click the “Stop” button (visible while processing).
+2. The message is marked as interrupted; you can refine your prompt and resend.
+
+## Keyboard shortcuts {#shortcuts}
+
+| Action | Shortcut |
+| ------ | -------- |
+| Open AI Chat | `⌘ + '` / `Ctrl + '` |
+| Send message | `Enter` |
+| New line | `Shift + Enter` |
+
+</VerticalStepper>