Are you wasting time on inefficient tasks when building WordPress themes or developing plugins? “Having to look up PHP function arguments and return values in the Codex every time,” “getting a blank screen due to minor syntax errors (typos),” “spending an entire day just setting up the development environment for custom blocks (React)”… There are countless “time-wasters” lurking in the development process.
However, in modern web development, a powerful tool has emerged to eliminate these challenges. This tool is the AI code editor “Cursor” and the next generation of AI tools, represented by the autonomous AI agent “Google Antigravity.” We are entering an era where, simply by conveying your requirements to AI, tasks such as converting static HTML into WordPress (adding loops and conditional branching) or generating custom plugins with advanced security features can be completed in just a few minutes.
In this article, we’ll explain a practical workflow for “AI WordPress development” that leverages the latest AI tools, moving away from the inefficient methods of manual coding of the past. We’ll share our firsthand insights—without holding anything back—on how to use AI to solve common challenges in real-world operations and how it transforms actual work speeds.
- The Role and Proper Use of AI Tools in WordPress Development
- WordPress Custom Block Development Workflow Using Cursor
- Comparison of Actual Work Speeds Between Traditional Coding and AI Development
- Points to Note (Pitfalls) in AI-Powered WordPress Development
- Frequently Asked Questions (FAQ)
- Summary: A Return to Human Creativity
The Role and Proper Use of AI Tools in WordPress Development
While we refer to them collectively as “AI tools,” each has distinct functions and areas of expertise. To achieve dramatic productivity gains in WordPress development, the key to success lies in understanding the characteristics of multiple AI tools—such as “Cursor” and “Antigravity”—and using them appropriately.
Cursor (Agent Mode): Instantly Modifies Your Current Codebase
Cursor is an AI-native code editor developed as a fork of VS Code, the world’s most widely used editor. The tool’s greatest strength lies in its ability to deeply understand the context of your “entire current project (codebase).”
- Loads and suggests custom functions defined in functions.php or class syntax within a theme
- Using the Agent Mode (or Composer) feature to edit multiple files (PHP, CSS, JavaScript, etc.) simultaneously
- It correctly uses WordPress-specific template tags (such as `get_template_part` and `get_header`)
For example, simply instructing Cursor to “convert the newly created HTML card element (div tag) into a loop structure that displays a list of WordPress posts” will automatically generate and apply the corresponding index.php file and associated style code. When it comes to customizing existing themes or adding new features, Cursor’s usability and value for money are unmatched.
Autonomous Research and Plugin Development with Google Antigravity
On the other hand, autonomous agents (such as Google Antigravity), which have garnered significant attention in recent years, excel at processing more advanced and abstract instructions. They independently plan and execute tasks ranging from interpreting text-based instructions to running terminal commands, creating directories, and web crawling for the latest documents.
The development approach using this is called “Vibe Coding” (a style where you complete code while interacting with AI suggestions).For example, if you issue the instruction, “Create a secure PDF file management plugin that allows only specific users to preview and download files,” it will carefully consider the necessary action hooks internally, generate and compress the files, and even prepare a plugin file (Zip) for functional testing all at once. This goes beyond the realm of a simple code editor, providing a sensation akin to “pair programming with a skilled engineer.”
Which one should you use? (Organizing decision criteria)
| Use Cases | Optimal Tool | Reason |
|---|---|---|
| Adding hooks to existing files / Bug fixes | Cursor | Because it allows you to instantly grasp the context of the currently open file and your local environment, enabling fast inline editing. |
| Designing custom blocks (Gutenberg) | Cursor | Because it allows you to adjust complex React (JSX) build settings and block.json property definitions while previewing them. |
| Complete New Plugin Development (From Scratch) | Antigravity | Because I can handle cross-functional tasks such as requirements definition, directory design, researching missing API specifications, and setting up related tools. |
| Analysis and refactoring of third-party themes | Antigravity or Cursor | Because this is where I truly excel: analyzing complexly intertwined includes and class dependencies, and visualizing specifications through comment generation. |
WordPress Custom Block Development Workflow Using Cursor
From here, we will explain the specific workflow using the development of “custom blocks” in the Gutenberg editor as an example. Development that was once difficult due to the need for knowledge of React packages can now be implemented quickly even by beginners using AI.
Step 0: Setting Up a Local Environment and Using “WordPress Playground”
First and foremost, set up a testing environment. Editing files directly on a live production environment is
strictly prohibited, as the risk of site downtime due to fatal errors is far too high. For quick testing, build a local environment using tools like “Herd dbngin” or “Local” for Mac. By installing “WordPress Playground”—a VS Code extension for Cursor—you can instantly preview and launch WordPress within a virtual container in the editor without opening a browser.
Step 1: Preparing Cursor Rules and Instructions (TODO.md)
A key technique for ensuring the AI generates high-quality code is setting project-specific rules (configuring the `.cursorrules` file). Additionally, document your requirements in a text file such as `TODO.md`.
## カスタムブロックの実装要件
- プラグイン内で定義する動的なカスタムブロックを作成
- 名前: 「FAQアコーディオン」
- `block.json` を使用して定義し、APIバージョンは3とする
- フロントエンド用のスクリプトで開閉するトグルを実装する
- セキュリティ対策として、出力出力時の `wp_kses_post()` によるエスケープを徹底するBy explicitly defining constraints and WordPress conventions (such as mandatory escaping) in advance, you can prevent rework before it happens.
Step 2: Delegating the Entire Build to Agent Mode
Launch Cursor’s Composer in Agent Mode and instruct it to “read TODO.md and create all necessary files (block.json, index.js, edit.js, render.php, etc.).”
The AI automatically handles initial npm package setup, build configuration, and React component implementation. If necessary, it will even suggest and execute shell commands to install @wordpress/scripts. The developer simply monitors the process and approves the generated results for each file.
Step 3: Error Checking and Self-Review of Security
After implementation, there’s no need to panic if layout issues or JavaScript console errors appear in the preview screen. Simply provide the error logs or a description of the broken screen in plain text, and the AI will instantly locate the relevant PHP code or CSS and propose a fix.
Also, after completion, be sure to instruct the AI to “review this code for vulnerabilities such as SQL injection or XSS, and fix any issues found” to ensure the quality of secure code.
Comparison of Actual Work Speeds Between Traditional Coding and AI Development
How much efficiency can be expected from this workflow overhaul? We have summarized our empirical findings from hands-on testing in our own operations.
| Task Details | Traditional Manual Coding | When Using Cursor / Antigravity | Time Savings |
|---|---|---|---|
| Converting HTML designs into WordPress themes | Approx. 3–5 hours | Approx. 30 minutes to 1 hour | Approx. 80% reduction |
| Creating complex WP_Query or custom taxonomy loops | Approx. 40 minutes (including searching for functions and adjusting parameters) | About 3 minutes (prompt instructions only) | Approx. 90% reduction |
| Implementing custom blocks and setting up the build environment | Approx. half a day to 1 day | Approx. 1–2 hours | Approx. 70% reduction |
| Identifying and fixing the cause of sudden white screens (500 errors) | Several tens of minutes to several hours | Several minutes to several tens of minutes | Significant reduction in stress |
What’s particularly noteworthy is that it doesn’t just reduce typing time—it virtually eliminates the time spent “searching the official reference (Codex) for the correct syntax” and the errors caused by typos. This drastically lowers the development barrier, allowing you to focus on implementing higher-quality features and SEO optimization.
Points to Note (Pitfalls) in AI-Powered WordPress Development
Cursor is a magical tool, but blindly trusting its output is dangerous. Here are some precautions to ensure stable, long-term operation.
The “Divide and Conquer” Approach to Preventing Hallucinations
LLMs (Large Language Models) occasionally suggest fictional functions that do not exist in WordPress or output outdated coding styles that are already deprecated. To reduce the risk of such “hallucinations” (plausible falsehoods), we employ the “divide and conquer” approach.
Instead of dumping everything onto the AI with a single instruction like “Create a perfect member site,” break the process down into smaller steps and give instructions gradually: “First, write only the code to add user permissions,” “Next, add custom fields,” and so on. The narrower you keep the context, the more accurate the AI’s output will be.
Overall design (architecture) is a domain that should be handled by humans
While AI excels at the micro level—such as “how to perfectly implement a given function”—it tends to produce chaotic results at the macro level—such as “what directory rules to use for managing the entire project” or “how to design maintainable classes”—without specific instructions. To
prevent file bloat, humans must retain control over development policy decisions.
Frequently Asked Questions (FAQ)
- Q. Can I create a WordPress plugin using Cursor even I have no programming experience?
A. It is certainly possible for small-scale plugins. However, without the ability to troubleshoot errors or the foundational knowledge (such as how PHP, HTML, and CSS work) to verify that the AI-generated code is correct, there is a risk of overlooking serious security bugs. We recommend learning gradually while utilizing AI.
- Q. Besides Cursor, can I use other editors like Copilot or Windsurf?
A. Yes, GitHub Copilot and Windsurf, a cutting-edge AI editor, also boast high performance. However, based on the current level of refinement of the Agent preview feature (the ability to generate and review multiple files at once), Cursor is considered to have a slight edge in WordPress theme and plugin development according to real-world evaluations.
Summary: A Return to Human Creativity
Modern WordPress development workflows utilizing tools like “Cursor” and “Google Antigravity” are no longer just a passing trend; they are becoming established as “essential skills” for engineers working on the front lines.
- Using Cursor’s Agent Mode to automate coding and refactoring across multiple files
- Clearly articulate requirements and security verification constraints in text files such as TODO.md
- Eliminate unnecessary stress from troubleshooting and enable rapid trial-and-error through Vibe Coding
By delegating tedious routine tasks and the battle against syntax errors to AI, we can devote our valuable time to areas that require human creativity, such as determining “what kind of UI will increase the user conversion rate (CVR)” and “how to implement advanced features that satisfy search intent.”
Furthermore, the scope of AI applications extends beyond development and source code writing. By embedding AI directly into “article content”—the very foundation of WordPress sites—we can leverage its powerful capabilities to directly enhance site management and marketing efforts.
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