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.
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What it does
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.
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Per Agent Skills progressive disclosure: name and description load at startup (~100 tokens); the full SKILL.md body loads when the skill activates; scripts/, references/, and assets/ load only as needed. This file's sections: NuGet Manager; Overview; Prerequisites; Core Rules; Workflows; Adding a Package. It includes spec-recommended sections: step-by-step instructions, input/output examples.
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NuGet ManagerOverviewPrerequisitesCore RulesWorkflowsAdding a PackageRemoving a PackageUpdating Package VersionsExamplesUser: "Add Serilog to the WebApi project"User: "Update Newtonsoft.Json to 13.0.3 in the whole solution"
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.
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Install the agent skill "nuget-manager" into my project. The full SKILL.md and official description are at https://zicq.com/en/skills/skl-e2f49e02ed999bf9-Nuget-Manager.html
Save it as .cursor/skills/nuget-manager/SKILL.md or .claude/skills/nuget-manager/SKILL.md and keep the frontmatter name and description exactly as-is.
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Readable layout
---
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 [] package [--version ]`.
Example: `dotnet add src/MyProject/MyProject.csproj package Newtonsoft.Json`
### Removing a Package
Use `dotnet remove [] package `.
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 --exact-match --format json | jq -e '.searchResult[].packages[] | select(.version == "")'`
Using PowerShell:
`(dotnet package search --exact-match --format json | ConvertFrom-Json).searchResult.packages | Where-Object { $_.version -eq "" }`
2. **Determine Version Management**:
- Search for `Directory.Packages.props` in the solution root. If present, versions should be managed there via ``.
- If absent, check individual `.csproj` files for ``.
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`.