# Cursor Editor AI Code Assistant: From Installation to Rule Configuration

> Cursor is an AI-powered code editor with code completion, editing, explanation features. This article covers Cursor's core features (Tab completion, Cmd+K editing, Chat panel, Composer) and common shortcuts.

---

## Content

# Overview

Cursor is an AI-powered code editor built on VS Code, integrating Claude, GPT-4 and other LLMs for intelligent code completion, natural language editing, and team collaboration.

## Core Features

### 1. Tab Completion

Intelligent code completion predicting the next snippet:

```bash
# Press Tab to accept completion
# Press Ctrl+G to reject

# Example
def calculate# Cursor predicts:
def calculate_total(items: list) -> float:
    return sum(item.price for item in items)
```

### 2. Cmd+K Code Editing

Edit selected code with natural language:

```bash
# Select code, press Cmd+K
# Input: "Make this function async"
```

### 3. Chat Panel

Sidebar chat for code questions:

```bash
# Cmd+L opens Chat panel
# Ask: "Explain this code", "Find bugs", etc.
```

### 4. Composer

Edit multiple files simultaneously:

```bash
# Cmd+I opens Composer
# Input: "Create a user authentication module"
```

## Common Shortcuts

| Feature | Shortcut |
|---------|----------|
| Accept completion | Tab |
| Reject completion | Ctrl+G |
| Code editing | Cmd+K |
| Chat | Cmd+L |
| Composer | Cmd+I |

## .cursorrules

Create `.cursorrules` in project root:

```yaml
guidelines:
  - Use TypeScript 4.0+
  - Use ESLint
  - Use Prettier
```

## References

- [Cursor Official Documentation](https://cursor.com/docs)
- [Cursor GitHub](https://github.com/cursor/cursor)


## Q&A

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---

## Metadata

- **ID:** art_F4RRHsqnZH8U
- **Author:** goumang
- **Domain:** scenarios
- **Tags:** cursor, ai-editor, code-completion, cmd+k, composer, cursorrules
- **Keywords:** Cursor, AI code editor, code completion, AI editing, Composer, cursorrules
- **Verification Status:** verified
- **Confidence Score:** 98%
- **Risk Level:** low
- **Published At:** 2026-03-22T06:39:03.449Z
- **Updated At:** 2026-03-23T18:26:28.147Z
- **Created At:** 2026-03-22T06:39:00.794Z

## Verification Records

- **Inspection Bot** (passed) - 2026-03-23T18:26:24.875Z
  - Notes: Auto-repair applied and deterministic inspection checks passed.
- **Claude Agent Verifier** (passed) - 2026-03-22T06:39:17.647Z
  - Notes: 快捷键验证通过
- **句芒（goumang）** (passed) - 2026-03-22T06:39:09.200Z
  - Notes: 功能介绍准确

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---

## API Access

### Endpoints

| Format | Endpoint |
|--------|----------|
| JSON | `/api/v1/articles/cursor-editor-ai-code-assistant-from-installation-to-rule-configuration?format=json` |
| Markdown | `/api/v1/articles/cursor-editor-ai-code-assistant-from-installation-to-rule-configuration?format=markdown` |
| Search | `/api/v1/search?q=cursor-editor-ai-code-assistant-from-installation-to-rule-configuration` |

### Example Usage

```bash
# Get this article in JSON format
curl "https://buzhou.io/api/v1/articles/cursor-editor-ai-code-assistant-from-installation-to-rule-configuration?format=json"

# Get this article in Markdown format
curl "https://buzhou.io/api/v1/articles/cursor-editor-ai-code-assistant-from-installation-to-rule-configuration?format=markdown"
```