What Is Cursor IDE Automation? How to Use the Next-Generation AI Agent Feature
Originally published in Turkish. Read the original →
We look at the revolutionary 'Automation' feature that arrived with Cursor IDE's latest update and how multi-step autonomous AI agents manage writing code, debugging and testing.
For software developers, AI assistants have gone beyond simple code completion (autocomplete) and chatbots to become fully autonomous AI Agents. Cursor, one of the most popular code editors in the industry, introduced a revolutionary feature in its latest update that crowns this transformation: Automation.
In this post, we go step by step through what Cursor's new Automation feature is, how it works with the Composer tool, how it will speed up your software development processes and how you can use this new agent most efficiently in your projects.
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What Is Cursor Automation?
Cursor Automation is an AI agent feature that starts from a single high-level command (prompt) from the developer and then performs tasks such as creating files, editing existing code, running terminal commands, reading error output and automatically fixing errors in a chained and autonomous way.
With classic AI assistants (and older Cursor versions), the process usually went like this:
1. The developer has the AI write a block of code. 2. They copy the generated code into the relevant file. 3. They open the terminal and run the project. 4. If they get an error, they copy it and ask the AI again. 5. They paste the new code from the AI, and the loop continues.
Cursor Automation breaks this human-AI loop. You say "Add a mechanism that updates user roles in the database, and write and test the corresponding Next.js API route"; the AI creates the files on its own, updates the data model, writes the API code, writes the tests, runs the tests from the terminal, revises its code if a test fails and keeps working until the tests pass.
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How Does the Automation Feature Work? (The Composer Agent)
The Automation feature is built on top of Composer (Ctrl+I or Cmd+I), Cursor's multi-file editing tool. When you run Composer in "Agent" or "Automation" mode instead of normal mode, Cursor gets full access to your project's terminal and file system.
Behind the scenes, the process goes through these steps:
1. Reasoning and Planning: The AI model (usually Claude 3.5 Sonnet or GPT-4o) examines your project's directory structure and code and produces a list of steps to take.
2. File and Code Operations: It makes code additions and changes in all the necessary files.
3. Terminal Integration: To verify the code, it runs npm run build, npm run test or whatever build command the project requires in the terminal.
4. Self-Healing: If the terminal command fails (for example, a TypeScript or compiler error), the AI reads the error. It identifies the files causing the error, fixes them and runs the command again.
5. Completion: It reports back that the operation is finished and everything has passed the tests.
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3 Big Advantages Cursor Automation Gives Developers
This latest Cursor update is the most mature example of the trend known in the software world as "Vibe Coding," where the developer only states their intent and leaves the code writing entirely to the AI.
1. Zero Copy-Paste and No Loss of Context
Copying code from the AI and pasting it into the editor becomes tiring over time, especially in large projects, and leads to loss of context. Because Automation sees your whole project and updates files directly, you no longer need to copy and paste.
2. Automatic Error Fixing (Self-Correction)
Small typos, missing imports or data type mismatches that slip through while coding can keep a developer busy for minutes. Automation reading the terminal directly and solving the error on its own increases development speed by at least 3-4x.
3. Easy Multi-File Refactoring
For example, when you update a data model or a shared function, you also need to change the 15 different files that use that function. Automation searches across the whole project, finds those 15 files and autonomously refactors all of them in one go according to your intent.
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Using Cursor Automation Step by Step
You can follow these steps to actively use this feature in your project:
1. Open the Composer Panel: Open the Composer panel using the Ctrl + I shortcut on Windows or Cmd + I on Mac.
2. Select Agent Mode: Activate the "Agent" or "Automation" option from the mode options at the top or side of the Composer window.
3. Define the Task: Describe in detail what you want to do. For example:
> "Create a new 'Contact Us' page in the project. It should have name, email and message fields. Have it send the form data to my email using the Resend API key in the .env.local file. When you're done, make sure there are no errors left in the TypeScript build (npm run build)."
4. Manage Permissions: While Cursor Automation is running, it may ask you for approval to run terminal commands or edit critical files. Follow the process by approving the steps that appear on screen.
5. Review the Changes (Diff View): When the agent finishes its work, it presents all its changes in a green/red Git diff view. Save the changes to the project by approving them (Accept).
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Security and Things to Watch Out For
Cursor Automation is an extremely powerful tool, but because it can run terminal commands autonomously, you should take some security precautions when using it:
* Use Git: Before running the automation, make sure you have committed all the changes in your project or are on a clean branch. Git is vital so you can easily revert any faulty code the agent writes. * Critical Commands: Closely monitor the process in areas such as database migration files that the agent could delete or overwrite, and approve each step after reviewing it instead of auto-approving. * Token and API Spending: Because agents work in chains and constantly consume reasoning tokens, a single command can quickly use up your API quota. Moving forward in small (incremental) steps is more economical than making tasks very large.
Cursor's Automation update opens the door to a new era in developer tools. Thanks to this new agent structure that doesn't just write code but manages, builds and tests the project on your behalf, you can get rid of routine work and focus entirely on system architecture and business logic. If you use Cursor, now is the perfect time to open the Composer panel and give it its first automation task!
