dotnet-managedcode-mimetypes

Detect MIME types and map file extensions in .NET applications.

466|35|Updated Mar 15, 2026
One-click install
npx skills add https://github.com/managedcode/dotnet-skills --skill dotnet-managedcode-mimetypes
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: dotnet-managedcode-mimetypes
Source: https://github.com/managedcode/dotnet-skills/tree/main/skills/dotnet-managedcode-mimetypes
Command: npx skills add https://github.com/managedcode/dotnet-skills --skill dotnet-managedcode-mimetypes

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides a reliable way for .NET applications to detect MIME types, map file extensions, and make consistent content-type decisions, especially for file uploads and downloads.

Core Features & Use Cases

  • Consistent MIME Detection: Ensures uniform handling of file types across your application.
  • Extension Mapping: Quickly find the correct MIME type for any given file extension.
  • Use Case: When a user uploads a file to your web application, this Skill can reliably determine its MIME type (e.g., image/jpeg, application/pdf) to ensure proper handling and storage.

Quick Start

Use the dotnet-managedcode-mimetypes skill to determine the MIME type for the file extension '.docx'.

Frequently Asked Questions about dotnet-managedcode-mimetypes

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I detect MIME types from file extensions in .NET?▼

MIME type detection from file extensions in .NET requires mapping extensions like .docx to standardized content types like application/vnd.openxmlformats-officedocument.wordprocessingml.document. This ensures uniform handling across your web application for file uploads and downloads.

What is the best way to determine file upload content types in a .NET web application?▼

Determining file upload content types in a .NET web application is best handled by a consistent MIME type detection library. It reliably identifies media types like image/jpeg or application/pdf during uploads, ensuring proper HTTP response content-type decisions and storage handling.

Why does my .NET application return inconsistent MIME types for downloads?▼

Inconsistent MIME types for downloads in .NET occur when file extension mapping is not standardized across your application. Implementing a consistent MIME detection mechanism ensures uniform media type identification, correcting mismatched HTTP response content-type headers.

Can I map file extensions to content types for HTTP responses in .NET?▼

You can map file extensions to content types for HTTP responses in .NET using a standardized MIME type detection library. This allows you to quickly find the correct media type for any given file extension, ensuring accurate content-type headers for downloads.

Does this MIME type detection approach work without external dependencies?▼

This MIME type detection approach works as a standalone solution without requiring external dependencies. It leverages the ManagedCode.MimeTypes library internally to provide accurate and standardized media type identification within your .NET applications.

When do I need a dedicated MIME type library instead of built-in .NET detection?▼

You need a dedicated MIME type library instead of built-in .NET detection when you require consistent media type identification across varied file uploads and downloads. A dedicated library ensures standardized extension mapping and uniform content-type decisions throughout your application.