Amazon Q Developer vs CursorUpdated 2026-03-16

SUMMARY

Amazon Q Developer (CLI) uses markdown configuration while Cursor (IDE) uses mdc. They differ on 6 of 11 compared features. Both tools provide AI-assisted development but take different approaches to project configuration.

FEATURE COMPARISON

FeatureAmazon Q DeveloperCursor
Config formatmarkdownmdc
Hierarchy support
Global config
Project config
Subdirectory scoping
File inclusion / imports
Ignore file.cursorignore
IDE integrationCLI
Schema / structureFree-form (Markdown)Hybrid (MDC frontmatter + Markdown)
Git committed
EncodingUTF-8UTF-8

FILE MAPPING

PurposeAmazon Q DeveloperCursor
Project rules.amazonq/rules/*.md.cursor/rules/*.mdc

SIDE-BY-SIDE CODE SAMPLES

Amazon Q Developer
.amazonq/rules/*.md
markdown
# React Component Standards

## Purpose
Ensure consistent React component patterns across the frontend codebase.

## Priority
High

## Instructions
- Use functional components with TypeScript
- Define props interfaces above the component
- Use React.FC only when children are expected
- Colocate styles using CSS Modules (*.module.css)
- Extract hooks into separate files when reused
- Memoize expensive computations with useMemo
- Use React.lazy for route-level code splitting

Cursor
.cursor/rules/*.mdc
mdc
---
description: React component conventions and patterns
globs: "*.tsx"
alwaysApply: false
---

# React Component Rules

- Use functional components with explicit return types
- Define props interface directly above the component
- Export components as named exports, never default
- Use Tailwind CSS utility classes exclusively

KEY DIFFERENCES

1. Config format

Amazon Q Developer: markdown. Cursor: mdc.

2. Hierarchy support

Amazon Q Developer: Not supported. Cursor: Supported.

3. Subdirectory scoping

Amazon Q Developer: Not supported. Cursor: Supported.

4. Ignore file

Amazon Q Developer: Not supported. Cursor: .cursorignore.

5. IDE integration

Amazon Q Developer: CLI. Cursor: Supported.

6. Schema / structure

Amazon Q Developer: Free-form (Markdown). Cursor: Hybrid (MDC frontmatter + Markdown).

WHICH SHOULD I USE?

Recommendation

Choose based on your IDE/CLI preference. If you use Amazon Q Developer, configure .amazonq/rules/*.md. If you use Cursor, configure .cursorrules. Many projects include config files for multiple tools so each team member can use their preferred editor.

PORTABILITY TIP

sync-instructions.sh
bash
# Maintain a single source of truth:
cp AI-INSTRUCTIONS.md CLAUDE.md
cp AI-INSTRUCTIONS.md .cursorrules
cp AI-INSTRUCTIONS.md AGENTS.md

SEE ALSO

agentconfig.ing2026-03-16COMPARE(1)