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Pick your workflow＃

Code Reviews offers two distinct modes that adapt to how you work. Whether you're coding with an AI assistant or writing code directly, this guide helps you understand which mode fits your workflow—and why most developers use both.

Choose your mode＃

  • Agent Mode

    For developers using AI coding assistants. Your code is reviewed automatically every time your AI generates or modifies code—no manual steps required.

    Learn more

  • Instant IDE Mode

    For developers writing code directly. Review any code on-demand with a right-click, keyboard shortcut, or sidebar button. No AI assistant needed—just you and your editor.

    Learn more

Agent Mode＃

Agent Mode integrates directly with your AI coding assistant. When the AI generates or modifies code, kluster.ai automatically analyzes the changes in real-time. You can also ask your AI to review existing files on demand—just say "review this file" and the AI triggers a manual review.

This mode is designed for developers who code with AI assistants like Claude Code, Cursor, or Copilot. The review happens seamlessly in the background, catching security vulnerabilities, logic errors, and quality issues before they become problems.

Compatible with:

  • IDE extensions: Cursor, VS Code, Windsurf, Antigravity.
  • CLI tools: Claude Code, Codex CLI.

Get started with Agent Mode

Instant IDE Mode＃

Instant IDE Mode gives you direct control over when reviews happen. Select any code in your editor and trigger a review instantly—no AI assistant required. This mode is built into the kluster.ai extension and provides three ways to review: right-click menu, keyboard shortcut, or the extension sidebar.

Use it to review code you wrote yourself, audit files before committing, or check legacy code you inherited. The reviews run the same comprehensive analysis as Agent Mode, just triggered manually instead of automatically.

Compatible with: Cursor, VS Code, Windsurf, Antigravity (IDEs only).

Not available for CLI tools

Instant IDE Mode requires an IDE extension. For CLI tools like Claude Code or Codex CLI, use Agent Mode instead.

Get started with Instant IDE Mode

Using both modes＃

If you use Cursor, VS Code, Windsurf, or Antigravity, you get the best of both worlds. Install kluster.ai once and both modes are available—switch seamlessly between AI-assisted coding and manual reviews without changing tools.

Use Agent Mode when pair-programming with AI, switch to Instant IDE Mode when writing code yourself, and run Review uncommitted changes before every commit to catch anything missed.

Next steps＃