ClrKernel.Primitives 0.3.0

.NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package ClrKernel.Primitives --version 0.3.0
                    


                    

                
NuGet\Install-Package ClrKernel.Primitives -Version 0.3.0
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="ClrKernel.Primitives" Version="0.3.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="ClrKernel.Primitives" Version="0.3.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="ClrKernel.Primitives" />
                    


                            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 ClrKernel.Primitives --version 0.3.0
                    


                    

                
#r "nuget: ClrKernel.Primitives, 0.3.0"
#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 ClrKernel.Primitives@0.3.0
#: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=ClrKernel.Primitives&version=0.3.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=ClrKernel.Primitives&version=0.3.0
                    


                            Install as a Cake Tool

ClrKernel

A Jupyter kernel for .NET. C# cells are evaluated with Roslyn's scripting engine (Microsoft.CodeAnalysis.CSharp.Scripting), with more CLR languages (PowerShell, F#) on the roadmap. Notebooks run interactively in JupyterLab / VS Code (Jupyter extension) and headlessly via nbconvert or papermill — including from schedulers like SQL Server Agent.

ClrKernel is a maintained fork of SciSharp/ICSharpCore, created after Microsoft deprecated .NET Interactive / Polyglot Notebooks (April 2026). Relative to upstream it adds: correct headless execution under nbclient/papermill, full output capture for async/await cells, control channel + heartbeat + graceful shutdown_request handling, patched vulnerable dependencies, and the kernelspec shipped inside the NuGet package.

Install

dotnet tool install --global ClrKernel
jupyter kernelspec install "$(clrkernel --kernel-spec-path)" --user --name clrkernel
jupyter kernelspec list   # should show: clrkernel

Requires a .NET 8+ runtime (RollForward=Major: newer majors work) and Jupyter.

Use

Pick the ClrKernel (C#) kernel in JupyterLab or VS Code. Cells support #r "nuget: Package, Version" and #r "path/to/local.dll" references, with REPL-style state persisting across cells.

Headless / scheduled execution:

jupyter nbconvert --to notebook --execute --output out.ipynb etl.ipynb
papermill etl.ipynb runs/etl_out.ipynb -k clrkernel --language .net-csharp -p run_date 2026-08-04

A failing cell exits non-zero (job schedulers see the failure); papermill also persists the partially-executed output notebook as a diagnostic artifact.

Develop

./scripts/install-dev-kernel.sh    # kernel 'clrkernel-dev' running from bin/ output
                                   # iterate: dotnet build + restart kernel
./scripts/install-local-tool.sh    # pack + install the global tool from a local
                                   # feed; tests the full packaged experience
clrkernel --kernel-spec-details    # show which kernelspec the binary resolves

License

Apache 2.0, preserving the upstream license. Original work © SciSharp (Kerry Jiang, Haiping Chen, and contributors); fork maintained by ClrKernel.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  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. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (11)

Showing the top 5 NuGet packages that depend on ClrKernel.Primitives:

Package Downloads
ClrKernel.Server

JSON-RPC-over-stdio notebook host for ClrKernel: executes C# cells via ClrKernel.Core for editor integrations (VS Code notebooks) — no Python or Jupyter required. Hosted by the ClrKernel CLI (`clrkernel serve`) and embeddable by other clients.
ClrKernel.Core

Execution core for ClrKernel: Roslyn C# scripting engine with #r nuget resolution, #!import/#!lib document loading (.dib, .ipynb, .csx), and display primitives — independent of any notebook transport (Jupyter, VS Code, CLI runners).
ClrKernel.Jupyter

Jupyter kernel implementation for ClrKernel: the ZeroMQ wire protocol, message handlers, and kernel event loop that host ClrKernel.Core over the Jupyter messaging protocol. Used by the ClrKernel CLI tool and embeddable by other hosts.
ClrKernel.Runner

Headless runner for ClrKernel notebooks: parses and executes .nb.md (executable markdown), .dib, .ipynb, and .csx files with papermill-style parameterization (-p/-r/-f/-y) and executed .ipynb output (-o). Built on ClrKernel.Core; no Jupyter or Python required.
ClrKernel.Fabric

Microsoft Fabric warehouse helpers for ClrKernel: from C# notebook cells, connect to a Fabric Warehouse SQL endpoint (Microsoft Entra auth), run T-SQL, and bulk-insert query results into warehouse tables by staging Parquet to OneLake and loading with OPENROWSET. Includes a reload-batch helper (delete a segment, reload it, run a batch of tables in parallel). Built on Microsoft.Fabric.Api, Azure.Storage.Files.DataLake, Parquet.Net, and Microsoft.Data.SqlClient.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.8.0 124 8/10/2026
0.7.0 92 8/8/2026
0.6.0 85 8/7/2026
0.5.0 51 8/7/2026
0.4.1 50 8/7/2026
0.4.0 50 8/7/2026
0.3.0 53 8/5/2026