Cocoar.Capabilities 1.2.1

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package Cocoar.Capabilities --version 1.2.1
                    


                    

                
NuGet\Install-Package Cocoar.Capabilities -Version 1.2.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Cocoar.Capabilities" Version="1.2.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Cocoar.Capabilities" Version="1.2.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Cocoar.Capabilities" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Cocoar.Capabilities --version 1.2.1
                    


                    

                
#r "nuget: Cocoar.Capabilities, 1.2.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Cocoar.Capabilities@1.2.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Cocoar.Capabilities&version=1.2.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Cocoar.Capabilities&version=1.2.1
                    


                            Install as a Cake Tool

High-performance capability composition for .NET

Cocoar.Capabilities

A high-performance, low-allocation capability composition library for .NET that implements the Capability Composition pattern for building extensible, type-safe systems.

NuGet License .NET Downloads

Installation

dotnet add package Cocoar.Capabilities

Quick Start

using Cocoar.Capabilities;

// Create a scope and compose capabilities onto a subject
var scope = new CapabilityScope();

scope.Compose("user-service")
    .Add(new LoggingCapability { Level = LogLevel.Debug })
    .Add(new RetryCapability { MaxAttempts = 3 })
    .Build();

// Query the composition
var composition = scope.Compositions.GetRequired<string>("user-service");
var logging = composition.GetFirstOrDefault<LoggingCapability>();
Console.WriteLine(composition.Has<LoggingCapability>()); // True

Documentation

Full documentation with guides, API reference, and examples:

docs.cocoar.dev/capabilities

Key Concepts

Type Role
CapabilityScope Container that manages composers and compositions
Composer Fluent builder for attaching capabilities to a subject
IComposition Immutable, thread-safe result of a composition
IPrimaryCapability Marker interface for the "identity" capability
CapabilityScope<TOwner> Strongly-typed scope with immutable owner

Contributing & Versioning

  • SemVer (additive MINOR, breaking MAJOR)
  • PRs & issues welcome
  • Licensed under Apache License 2.0 (explicit patent grant & attribution via NOTICE)

License & Trademark

This project is licensed under the Apache License, Version 2.0. See NOTICE for attribution.

"Cocoar" and related marks are trademarks of COCOAR e.U. Use of the name in forks or derivatives should preserve attribution and avoid implying official endorsement. See TRADEMARKS for permitted and restricted uses.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

  • net8.0

    • No dependencies.

NuGet packages (3)

Showing the top 3 NuGet packages that depend on Cocoar.Capabilities:

Package Downloads
Cocoar.Configuration

Reactive, strongly-typed configuration for .NET. Layered rules, atomic updates, feature flags, entitlements, memory-safe secrets (RSA-OAEP + AES-256-GCM), health monitoring, and providers (file, environment, command-line, static, observable).
Cocoar.Configuration.DI

Dependency injection integration for Cocoar.Configuration. Configuration type registration, lifetime customization, keyed services, and context resolver registration for feature flags and entitlements.
Cocoar.Configuration.Flags

Feature Flags and Entitlements for Cocoar.Configuration. Provides delegate-based flags with metadata via Capabilities. Base classes for temporary feature flags (with expiration) and permanent entitlements. Reactive, type-safe, and designed for clean separation of technical vs business decisions. Includes a Roslyn source generator that emits descriptor-based registry population at compile time.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.2.1 72 3/20/2026
1.2.0 1,353 11/3/2025
1.1.0 164 10/26/2025
1.0.0 166 10/10/2025

Full release notes: https://github.com/cocoar-dev/Cocoar.Capabilities/blob/develop/CHANGELOG.md