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

# Chat sidebar

The chat sidebar helps you quickly understand and navigate your pull requests (PRs) with intelligent, context-aware assistance directly within cubic.

<img src="https://mintcdn.com/cubic-2/AzoJeLhtvGZBEz71/code-review-platform/images/sidebar.png?fit=max&auto=format&n=AzoJeLhtvGZBEz71&q=85&s=ef86886e56fcb37a2dd3e72a36a2ab7e" alt="AI sidebar assistant" className="border border-zinc-800 rounded-lg" width="2974" height="1750" data-path="code-review-platform/images/sidebar.png" />

## Why use AI chat?

* Quickly understand unfamiliar code or libraries.
* Get instant answers about your PR, such as explanations for failing tests or complex changes.
* Visualize complex systems with AI-generated diagrams.
* Navigate directly to code implementations with smart search.
* Automatically draft helpful comments during code reviews.

## Opening the AI chat

To open the AI chat sidebar:

* Press `Cmd + L`.
* Or, click the AI chat icon in the top-right corner of your PR view.

The chat sidebar will appear alongside your PR, maintaining context throughout your conversation.

## Asking questions

The AI chat understands context about your specific PR, including:

* The code changes you are reviewing.
* Recent comments and review statuses.
* Repository-specific details.

Simply type your question or request, for example:

* "Why did these tests fail?"
* "Explain the use of this library."
* "Summarize changes in this PR."

The AI will respond with clear, concise information.

## Visualizing with diagrams

Ask the AI to create diagrams to better understand complex systems:

* "Draw a diagram of the data flow in this PR"
* "Visualize the component hierarchy"
* "Show me how these services interact"

<img src="https://mintcdn.com/cubic-2/AzoJeLhtvGZBEz71/code-review-platform/images/sidebar-diagram.png?fit=max&auto=format&n=AzoJeLhtvGZBEz71&q=85&s=e1d08c0d64469348cf3ab60274aae9fe" alt="AI sidebar drawing a system diagram" className="border border-zinc-800 rounded-lg" width="2443" height="1527" data-path="code-review-platform/images/sidebar-diagram.png" />

The AI generates diagrams directly in the chat, helping you grasp architectural changes and system designs at a glance.

## Finding code with smart navigation

Ask the AI to show you where specific code is implemented:

* "Where is the authentication logic?"
* "Show me the error handling for this API"
* "Find the component that renders this UI"

<img src="https://mintcdn.com/cubic-2/AzoJeLhtvGZBEz71/code-review-platform/images/highlight-code-area.gif?s=40c2ce66030985f83727d27957eacfd4" alt="AI sidebar navigating to code implementation" className="border border-zinc-800 rounded-lg" width="1064" height="720" data-path="code-review-platform/images/highlight-code-area.gif" />

The AI will navigate directly to the relevant file and highlight the specific lines, saving you time searching through the codebase.

## Suggested comments

AI chat can suggest review comments based on the PR changes:

* AI-suggested comments appear as drafts, ready for editing.
* You have full control—edit, discard, or publish suggestions directly.