---
title: "Agent Skill to Nuget Manager"
platform: "Promptally"
canonical_url: "https://app.promptally.dev/p/skill-nuget-manager"
modality: "SKILL"
category: "Fullstack & Backend Engineering"
compatible_models: [Universal / Model Agnostic]
access_tier: "Free Public Artifact (No Auth Required)"
license: "MIT"
---

# Agent Skill to Nuget Manager

**Summary:** Agent Skill to Nuget Manager is a verified SKILL blueprint on Promptally in Fullstack & Backend Engineering optimized for leading AI models. Manage NuGet packages in .NET projects/solutions. Use this skill when adding, removing, or updating NuGet package versions. It enforces using dotnet CLI for package management and provides strict procedures for direct file edits only when updating versions. Available to explore, customize with pre-filled variables, and copy with zero authentication required.

## Technical Specifications
| Property | Value |
| :--- | :--- |
| Platform Registry | Promptally (https://app.promptally.dev) |
| Modality | SKILL |
| Category | Fullstack & Backend Engineering |
| Compatible Engines | Universal / Model Agnostic |
| Dynamic Variables | None (Static Blueprint) |
| Approx. Token Length | 854 |
| Access Tier | Free Public Artifact (No Auth Required) |
| License | MIT |

### Pre-Filled Template & Production Source

```md
---
name: nuget-manager
description: 'Manage NuGet packages in .NET projects/solutions. Use this skill when adding, removing, or updating NuGet package versions. It enforces using `dotnet` CLI for package management and provides strict procedures for direct file edits only when updating versions.'
---

# NuGet Manager

## Overview

This skill ensures consistent and safe management of NuGet packages across .NET projects. It prioritizes using the `dotnet` CLI to maintain project integrity and enforces a strict verification and restoration workflow for version updates.

## Prerequisites

- .NET SDK installed (typically .NET 8.0 SDK or later, or a version compatible with the target solution).
- `dotnet` CLI available on your `PATH`.
- `jq` (JSON processor) OR PowerShell (for version verification using `dotnet package search`).

## Core Rules

1.  **NEVER** directly edit `.csproj`, `.props`, or `Directory.Packages.props` files to **add** or **remove** packages. Always use `dotnet add package` and `dotnet remove package` commands.
2.  **DIRECT EDITING** is ONLY permitted for **changing versions** of existing packages.
3.  **VERSION UPDATES** must follow the mandatory workflow:
    - Verify the target version exists on NuGet.
    - Determine if versions are managed per-project (`.csproj`) or centrally (`Directory.Packages.props`).
    - Update the version string in the appropriate file.
    - Immediately run `dotnet restore` to verify compatibility.

## Workflows

### Adding a Package
Use `dotnet add [<PROJECT>] package <PACKAGE_NAME> [--version <VERSION>]`.
Example: `dotnet add src/MyProject/MyProject.csproj package Newtonsoft.Json`

### Removing a Package
Use `dotnet remove [<PROJECT>] package <PACKAGE_NAME>`.
Example: `dotnet remove src/MyProject/MyProject.csproj package Newtonsoft.Json`

### Updating Package Versions
When updating a version, follow these steps:

1.  **Verify Version Existence**:
    Check if the version exists using the `dotnet package search` command with exact match and JSON formatting. 
    Using `jq`:
    `dotnet package search <PACKAGE_NAME> --exact-match --format json | jq -e '.searchResult[].packages[] | select(.version == "<VERSION>")'`
    Using PowerShell:
    `(dotnet package search <PACKAGE_NAME> --exact-match --format json | ConvertFrom-Json).searchResult.packages | Where-Object { $_.version -eq "<VERSION>" }`
    
2.  **Determine Version Management**:
    - Search for `Directory.Packages.props` in the solution root. If present, versions should be managed there via `<PackageVersion Include="Package.Name" Version="1.2.3" />`.
    - If absent, check individual `.csproj` files for `<PackageReference Include="Package.Name" Version="1.2.3" />`.

3.  **Apply Changes**:
    Modify the identified file with the new version string.

4.  **Verify Stability**:
    Run `dotnet restore` on the project or solution. If errors occur, revert the change and investigate.

## Examples

### User: "Add Serilog to the WebApi project"
**Action**: Execute `dotnet add src/WebApi/WebApi.csproj package Serilog`.

### User: "Update Newtonsoft.Json to 13.0.3 in the whole solution"
**Action**:
1. Verify 13.0.3 exists: `dotnet package search Newtonsoft.Json --exact-match --format json` (and parse output to confirm "13.0.3" is present).
2. Find where it's defined (e.g., `Directory.Packages.props`).
3. Edit the file to update the version.
4. Run `dotnet restore`.

```

## Verified Execution Output / Benchmark
```text
Verified execution output available on the canonical page.
```

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