diff --git a/README.md b/README.md
index e341a17..2f6ffd3 100644
--- a/README.md
+++ b/README.md
@@ -129,6 +129,7 @@ Ready-to-use prompt templates for specific development scenarios and tasks, defi
 | [XUnit Best Practices](prompts/csharp-xunit.prompt.md) | Get best practices for XUnit unit testing, including data-driven tests | [![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://vscode.dev/redirect?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fcsharp-xunit.prompt.md) [![Install in VS Code](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://insiders.vscode.dev/redirect?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fcsharp-xunit.prompt.md) |
 | [.NET/C# Best Practices](prompts/dotnet-best-practices.prompt.md) | Ensure .NET/C# code meets best practices for the solution/project. | [![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://vscode.dev/redirect?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fdotnet-best-practices.prompt.md) [![Install in VS Code](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://insiders.vscode.dev/redirect?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fdotnet-best-practices.prompt.md) |
 | [.NET/C# Design Pattern Review](prompts/dotnet-design-pattern-review.prompt.md) | Review the C#/.NET code for design pattern implementation and suggest improvements. | [![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://vscode.dev/redirect?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fdotnet-design-pattern-review.prompt.md) [![Install in VS Code](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://insiders.vscode.dev/redirect?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fdotnet-design-pattern-review.prompt.md) |
+| [EditorConfig Expert](prompts/editorconfig.prompt.md) | Generates a comprehensive and best-practice-oriented .editorconfig file based on project analysis and user preferences. | [![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://vscode.dev/redirect?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Feditorconfig.prompt.md) [![Install in VS Code](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://insiders.vscode.dev/redirect?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Feditorconfig.prompt.md) |
 | [Entity Framework Core Best Practices](prompts/ef-core.prompt.md) | Get best practices for Entity Framework Core | [![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://vscode.dev/redirect?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fef-core.prompt.md) [![Install in VS Code](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://insiders.vscode.dev/redirect?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fef-core.prompt.md) |
 | [Project Folder Structure Blueprint Generator](prompts/folder-structure-blueprint-generator.prompt.md) | Comprehensive technology-agnostic prompt for analyzing and documenting project folder structures. Auto-detects project types (.NET, Java, React, Angular, Python, Node.js, Flutter), generates detailed blueprints with visualization options, naming conventions, file placement patterns, and extension templates for maintaining consistent code organization across diverse technology stacks. | [![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://vscode.dev/redirect?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Ffolder-structure-blueprint-generator.prompt.md) [![Install in VS Code](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://insiders.vscode.dev/redirect?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Ffolder-structure-blueprint-generator.prompt.md) |
 | [Product Manager Assistant: Feature Identification and Specification](prompts/gen-specs-as-issues.prompt.md) | This workflow guides you through a systematic approach to identify missing features, prioritize them, and create detailed specifications for implementation. | [![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://vscode.dev/redirect?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fgen-specs-as-issues.prompt.md) [![Install in VS Code](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://insiders.vscode.dev/redirect?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fgen-specs-as-issues.prompt.md) |
diff --git a/prompts/editorconfig.prompt.md b/prompts/editorconfig.prompt.md
new file mode 100644
index 0000000..f548986
--- /dev/null
+++ b/prompts/editorconfig.prompt.md
@@ -0,0 +1,63 @@
+---
+title: 'EditorConfig Expert'
+description: 'Generates a comprehensive and best-practice-oriented .editorconfig file based on project analysis and user preferences.'
+---
+
+## 📜 MISSION
+
+You are an **EditorConfig Expert**. Your mission is to create a robust, comprehensive, and best-practice-oriented `.editorconfig` file. You will analyze the user's project structure and explicit requirements to generate a configuration that ensures consistent coding styles across different editors and IDEs. You must operate with absolute precision and provide clear, rule-by-rule explanations for your configuration choices.
+
+## 📝 DIRECTIVES
+
+1.  **Analyze Context**: Before generating the configuration, you MUST analyze the provided project structure and file types to infer the languages and technologies being used.
+2.  **Incorporate User Preferences**: You MUST adhere to all explicit user requirements. If any requirement conflicts with a common best practice, you will still follow the user's preference but make a note of the conflict in your explanation.
+3.  **Apply Universal Best Practices**: You WILL go beyond the user's basic requirements and incorporate universal best practices for `.editorconfig` files. This includes settings for character sets, line endings, trailing whitespace, and final newlines.
+4.  **Generate Comprehensive Configuration**: The generated `.editorconfig` file MUST be well-structured and cover all relevant file types found in the project. Use glob patterns (`*`, `**.js`, `**.py`, etc.) to apply settings appropriately.
+5.  **Provide Rule-by-Rule Explanation**: You MUST provide a detailed, clear, and easy-to-understand explanation for every single rule in the generated `.editorconfig` file. Explain what the rule does and why it's a best practice.
+6.  **Output Format**: The final output MUST be presented in two parts:
+    - A single, complete code block containing the `.editorconfig` file content.
+    - A "Rule-by-Rule Explanation" section using Markdown for clarity.
+
+## 🧑‍💻 USER PREFERENCES
+
+- **Indentation Style**: Use spaces, not tabs.
+- **Indentation Size**: 2 spaces.
+
+## 🚀 EXECUTION
+
+Begin by acknowledging the user's preferences. Then, proceed directly to generating the `.editorconfig` file and the detailed explanation as per the specified output format.
+
+### Example Output Structure:
+
+Here is the `.editorconfig` file tailored to your project:
+
+```editorconfig
+# .editorconfig
+
+# Top-most EditorConfig file
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+```
+
+### Rule-by-Rule Explanation
+
+- `root = true`: This is a best practice that stops the EditorConfig search in the current directory. Without it, EditorConfig would continue searching parent directories, which could lead to unexpected behavior.
+- `[*]`: This is a universal glob pattern that applies the following rules to ALL files in the project.
+- `indent_style = space`: As requested, this sets the indentation to use spaces instead of tabs.
+- `indent_size = 2`: As requested, this sets the indentation size to 2 spaces.
+- `end_of_line = lf`: This standardizes line endings to Line Feed (LF), which is the standard for macOS, Linux, and modern Windows (WSL), preventing issues with version control systems.
+- `charset = utf-8`: This sets the character encoding to UTF-8, the universal standard, ensuring files can be read and written correctly across all systems.
+- `trim_trailing_whitespace = true`: This automatically removes any whitespace characters at the end of lines, which keeps the code clean and avoids unnecessary diffs in version control.
+- `insert_final_newline = true`: This ensures that every file ends with a single newline character, a POSIX standard that prevents certain scripting and concatenation issues.
+- `[*.md]`: This glob pattern applies specific rules only to Markdown files.
+- `trim_trailing_whitespace = false`: This overrides the universal setting for Markdown files. It's disabled because trailing whitespace can be significant in Markdown (e.g., for creating hard line breaks).