Add Refactoring
dotnet/roslynator
A skill your agent uses when adding a new RR refactoring in roslynator, editing Refactorings.xml, registering in RefactoringContext, or when refactorings-testing.md shows XunitRefactoringVerifier —…
Primary router skill for broad .NET work. An agent skill from managedcode/dotnet-skills.
Install Dotnet
$ npx skills add managedcode/dotnet-skills --skill dotnet -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install managedcode/dotnet-skills dotnet --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/managedcode/dotnet-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/catalog/Platform/DotNet/skills/dotnet .claude/skills/dotnet && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "dotnet" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Platform/DotNet/skills/dotnet into .claude/skills/dotnet/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/managedcode/dotnet-skills/tree/main/catalog/Platform/DotNet/skills/dotnetType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add managedcode/dotnet-skills --skill dotnet -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install managedcode/dotnet-skills dotnet --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/managedcode/dotnet-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/catalog/Platform/DotNet/skills/dotnet .agents/skills/dotnet && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "dotnet" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Platform/DotNet/skills/dotnet into .agents/skills/dotnet/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add managedcode/dotnet-skills --skill dotnet -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install managedcode/dotnet-skills dotnet --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/managedcode/dotnet-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/catalog/Platform/DotNet/skills/dotnet .cursor/skills/dotnet && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "dotnet" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Platform/DotNet/skills/dotnet into .cursor/skills/dotnet/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/managedcode/dotnet-skills.git --path catalog/Platform/DotNet/skills/dotnet--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add managedcode/dotnet-skills --skill dotnet -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install managedcode/dotnet-skills dotnet --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/managedcode/dotnet-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/catalog/Platform/DotNet/skills/dotnet .gemini/skills/dotnet && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "dotnet" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Platform/DotNet/skills/dotnet into .gemini/skills/dotnet/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install managedcode/dotnet-skills dotnetInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add managedcode/dotnet-skills --skill dotnet -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/managedcode/dotnet-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/catalog/Platform/DotNet/skills/dotnet .github/skills/dotnet && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "dotnet" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Platform/DotNet/skills/dotnet into .github/skills/dotnet/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add managedcode/dotnet-skills --skill dotnet -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install managedcode/dotnet-skills dotnet --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/managedcode/dotnet-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/catalog/Platform/DotNet/skills/dotnet .opencode/skills/dotnet && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "dotnet" agent skill from https://github.com/managedcode/dotnet-skills/tree/main/catalog/Platform/DotNet/skills/dotnet into .opencode/skills/dotnet/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
dotnet- GitHub stars
- 486
- Token cost
- ~1.9k tokens
- SKILL.md length
- 860 words
- Files
- 4 (incl. references)
- Skills in repo
- 81
- Repo updated
- First seen
- Licence
- MIT
At a glance
Primary router skill for broad .NET work. An agent skill from managedcode/dotnet-skills.
- Works in 6 steps: Detect the real stack first → Route to the narrowest platform skill as… → Route cross-cutting work to the… → …
- : general .NET requests without a narrower framework
- SKILL.md covers Trigger On, Workflow, Test Output Budget and Current Upstream Notes, plus 5 more sections
- Calls dotnet
What it does
Dotnet is an agent skill from managedcode/dotnet-skills. Primary router skill for broad .NET work. Classify the repo by app model and cross-cutting concern first, then switch to the narrowest matching .NET skill instead of staying at a generic layer. USE FOR: general .NET requests without a narrower framework; C implementation, debugging, review, or refactoring; routing to framework and tooling skills. DO NOT USE FOR: unrelated stacks; tasks already covered by a narrower .NET skill. INVOKES: inspect the repository context, edit targeted files, and run relevant build…
Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `manifest.json`, `references/detection.md` and `references/routing.md`). Compatibility notes: Requires a .NET repository, solution, or project tree.
It sits in Development, covering Codebase knowledge for agents, Linting and formatting and Refactoring. It works with .NET and C#. The repository describes itself as: Installable .NET skill catalog and CLI for Codex, Claude Code, GitHub Copilot, and Gemini. The licence is MIT.
When your agent uses it
- : general .NET requests without a narrower framework
- C implementation
- Routing to framework and tooling skills
- : unrelated stacks
Example prompts
- “/dotnet”
Requirements
- Compatibility (from SKILL.md): Requires a .NET repository, solution, or project tree.
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Detect the real stack first
- Route to the narrowest platform skill as soon as the stack is known
- Route cross-cutting work to the companion skill instead of keeping it inside generic .NET advice
- If more than one specialized skill applies, prefer the one closest to the user-visible behavior first, then pull in the quality or tooling…
- Do not stop at this skill once a narrower match exists. This skill should classify and hand off, not become a generic dumping ground.
- After code changes, validate with the repository's actual build, test, and quality workflow instead of generic .NET commands.
What it can do on your machine
Read from SKILL.md and the folder at commit 535dd55. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
dotnet
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
managed-code.comlearn.microsoft.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Compatibility
Requires a .NET repository, solution, or project tree.
From compatibility in the SKILL.md frontmatter.
Context cost
Dotnet loads about 1.9k tokens when it runs, and up to ~5.1k if it reads all its reference files. Until then it costs about 146 tokens; SKILL.md has 860 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from managedcode/dotnet-skills at commit 535dd55, republished under its MIT licence (© managedcode). 860 words, ~1,901 tokens.
Download SKILL.mdSave it as
.claude/skills/dotnet/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- dotnet
- description
- Primary router skill for broad .NET work. Classify the repo by app model and cross-cutting concern first, then switch to the narrowest matching .NET skill instead of staying at a generic layer. USE FOR: general .NET requests without a narrower framework; C# implementation, debugging, review, or refactoring; routing to framework and tooling skills. DO NOT USE FOR: unrelated stacks; tasks already covered by a narrower .NET skill. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made.
- compatibility
- Requires a .NET repository, solution, or project tree.
.NET Router Skill
Trigger On
- the user asks for general
.NEThelp without naming a narrower framework or tool - implementing, debugging, reviewing, or refactoring C# or
.NETcode in a repo with multiple app models or frameworks - deciding which
.NETskill should own a task before editing code - tasks that combine platform work with testing, quality, architecture, setup, or migration decisions
Workflow
- Detect the real stack first:
- target frameworks and SDK version
LangVersion- project SDKs and workload hints
- hosting model and app entry points
- test framework and runner
- analyzers, formatters, coverage, and CI quality gates
- Route to the narrowest platform skill as soon as the stack is known:
- Web:
aspnet-core,minimal-apis,web-api,blazor,signalr,grpc - Cloud and hosting:
aspire,azure-functions,worker-services - Desktop and client:
maui,wpf,winforms,winui - Data and distributed:
entity-framework-core,entity-framework6,orleans - AI and agentic:
semantic-kernel,microsoft-extensions-ai,microsoft-agent-framework,mlnet,mixed-reality, or architecture guidance in building AI agents with .NET - Legacy:
legacy-aspnet,wcf,workflow-foundation
- Web:
- Route cross-cutting work to the companion skill instead of keeping it inside generic
.NETadvice:- project bootstrap or repo shape:
project-setup,architecture - frontend asset analysis in mixed
.NETplus Node repos:eslint,stylelint,htmlhint,webhint,biome,sonarjs,metalint,chous - code review:
code-review - language features:
modern-csharp - testing:
tunit,xunit,mstest - format, analyzers, coverage, and CI:
format,code-analysis,quality-ci,coverlet,reportgenerator - maintainability and architecture rules:
complexity,netarchtest,archunitnet
- project bootstrap or repo shape:
- If more than one specialized skill applies, prefer the one closest to the user-visible behavior first, then pull in the quality or tooling skill second.
- Do not stop at this skill once a narrower match exists. This skill should classify and hand off, not become a generic dumping ground.
- After code changes, validate with the repository's actual build, test, and quality workflow instead of generic
.NETcommands.
Test Output Budget
- Keep native runner progress and ANSI enabled (
--progress on --ansi onfor supported MTP/TUnit runners); use a PTY locally. Do not replay progress redraws into model context. Use the detected runner's flags, not MTP switches on VSTest. - Show warnings and errors plus one final summary (counts, duration, exit code). Configure test-owned console logging at
Warning; keep Information/Debug/Trace, successful-test output, and expected negative-test noise out of context. Quiet build verbosity alone does not filter application logs. - On failure, crash, startup error, or timeout, show the failing test/resource, root exception, and relevant stack frames. Deduplicate; cap each diagnostic tool response at 80 lines / 8 KiB, whichever comes first. Never automatically dump stdout/stderr, host logs, browser console history, DOM/HTML, TRX, or crash artifacts.
- Keep necessary diagnostics in size-bounded or rotating artifacts and link them. Search by exact failure/correlation; read bounded excerpts, never whole logs. Capture/filter noisy output before tool delivery, preserve the real exit code, and disclose truncation. Monitor actual activity; silence alone does not prove a hang.
Show full SKILL.md (398 more words)Show less
Current Upstream Notes
.NET 10.0.11runtime and ASP.NET Core releases are servicing updates. Re-test affected paths such as cgroup-v2 memory limits, Mono native-library resolution, Windows directory enumeration, WASM AOT/lazy-load startup, thread-static initialization, Blazor persisted circuits, and OpenAPI generation rather than changing architecture by default..NET SDK 10.0.400is the current 10.0.4xx feature band. It expands file-based app support, adds Microsoft.Testing.Platform project/solution selection todotnet test, accepts@as thedotnet newoption separator, and includes hardlink and up-to-date build fixes. Keepglobal.json, workloads, and CI images aligned before adopting the new band.- The August 2026 "Build apps with .NET" Learn overview remains broad routing context across web, cloud, desktop, mobile, AI, and console workloads; hand off to
project-setup,worker-services,aspnet-core,modern-csharp, or another narrow skill as soon as the app model is known.
Routing Heuristics
- If the repo contains
Microsoft.NET.Sdk.Web, start from a web skill, not generic.NET. - If the repo contains Blazor, Razor Components, or
.razorpages, preferblazor. - If the repo contains
package.json, frontend lint configs, or browser-facing asset pipelines inside the.NETsolution, prefer the dedicated frontend analysis skills instead of generic.NET. - If the repo contains Orleans grains or silo hosting, prefer
orleans. - If the repo is mostly analyzers, CI, or coverage work, prefer the quality skill directly.
- If the user asks about “which skill should I use?”, answer with the narrowest matching skill and explain why in one short sentence.
- If no narrower skill matches, keep the work here and stay explicit about the missing specialization.
Deliver
- the correct specialized skill choice for the task
- repo-compatible code or documentation changes that stay aligned with the detected stack
- validation evidence that matches the real project runner and quality toolchain
Validate
- the chosen downstream skill actually exists in the catalog
- platform assumptions match project SDKs, packages, and workloads
- generic guidance has been replaced by framework-specific guidance whenever possible
- runner-specific commands are not mixed incorrectly
- language or runtime features are only used when the repo supports them
Documentation
References
- references/routing.md - Decision tree for routing tasks to specialized .NET skills, including app model classification and cross-cutting concern handling.
- references/detection.md - Project detection patterns for identifying SDK types, target frameworks, workloads, language versions, and app models.
- building AI agents with .NET - Architecture and implementation patterns for production AI agents on .NET.
- .NET AI agent development team - Production .NET AI agent engineering and delivery services.
© managedcode, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files (references) in catalog/Platform/DotNet/skills/dotnet of managedcode/dotnet-skills.
- SKILL.md
- manifest.json
- references/detection.md
- references/routing.md
Open the folder on GitHubat commit 535dd55
Compare with similar skills
Dotnet next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Dotnet this skillmanagedcode/dotnet-skills | 486 | — | ~1.9k | Automated safety check: Pass | MIT | |
| Add Refactoringdotnet/roslynator | 3.5k | — | ~946 | Automated safety check: Pass | Custom licence | |
| Dynamo Dotnet ExpertDynamoDS/Dynamo | 2k | — | ~922 | Automated safety check: Pass | Apache-2.0 | |
| Deprecate Analyzer Or Refactoringdotnet/roslynator | 3.5k | — | ~511 | Automated safety check: Pass | Custom licence | |
| Okojo Test262akeit0/okojo | 160 | — | ~742 | Automated safety check: Pass | MIT | |
| Dotnet10 Featuresrunceel/ReactiveProperty | 944 | — | ~2.7k | Automated safety check: Pass | MIT |
Similar skills
- Official
Dynamo Dotnet Expert
DynamoDS/Dynamo
Write and review C/.NET code in Dynamo following Dynamo coding standards, modern C patterns, and repo conventions.
- Official
Deprecate Analyzer Or Refactoring
dotnet/roslynator
A skill your agent uses when obsoleting or retiring RCS, RR, or RCF in roslynator, replacing an analyzer with another id, or when tempted to use IsObsolete on an Analyzer entry — analyzers use…
Okojo Test262
akeit0/okojo
Run and continue Okojo Test262 compliance work. An agent skill from akeit0/okojo.
Dotnet10 Features
runceel/ReactiveProperty
Reference for the .NET 10 / C 14 features that are relevant to the ReactiveProperty repository.
Git Hooks
Prorise-cool/Claude-Code-Multi-Agent
Central authority on git hook implementations, modern best practices, and tooling for .NET/C, JavaScript/TypeScript, Python, and polyglot repositories.
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Related
Categories
Questions about Dotnet
What does Dotnet do?
Primary router skill for broad .NET work. An agent skill from managedcode/dotnet-skills. Dotnet is an agent skill from managedcode/dotnet-skills.NET work.
When should I use Dotnet?
Dotnet fits situations like: : general .NET requests without a narrower framework; C implementation; routing to framework and tooling skills; : unrelated stacks.
How do I install Dotnet in Claude Code?
Run `npx skills add managedcode/dotnet-skills --skill dotnet -a claude-code`. Or copy the skill folder (catalog/Platform/DotNet/skills/dotnet in managedcode/dotnet-skills) into .claude/skills/dotnet in your project. Claude Code loads it when a task matches its description.
How do I install Dotnet in Codex?
Run `npx skills add managedcode/dotnet-skills --skill dotnet -a codex`. Or copy the skill folder (catalog/Platform/DotNet/skills/dotnet in managedcode/dotnet-skills) into .agents/skills/dotnet in your project. Codex loads it when a task matches its description.
Can I use Dotnet in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add managedcode/dotnet-skills --skill dotnet -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/dotnet, .gemini/skills/dotnet, .github/skills/dotnet and .opencode/skills/dotnet in your project.
What does Dotnet need to run?
Going by SKILL.md and its folder, Dotnet needs the command-line tools its instructions call (dotnet). Compatibility (from SKILL.md): Requires a .NET repository, solution, or project tree..
Does Dotnet access the network?
SKILL.md names 2 domains. As links in the text: managed-code.com and learn.microsoft.com. This is read from the text; nothing was executed.
Is Dotnet safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Dotnet use?
Dotnet is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Dotnet use?
About 1.9k tokens (SKILL.md is roughly 7.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3.2k tokens, read only when the agent opens those files.
What are the alternatives to Dotnet?
Skills that share tags, products or a category with Dotnet: Add Refactoring (dotnet/roslynator, 3.5k stars), Dynamo Dotnet Expert (DynamoDS/Dynamo, 2k stars), Deprecate Analyzer Or Refactoring (dotnet/roslynator, 3.5k stars) and Okojo Test262 (akeit0/okojo, 160 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Dotnet?
managedcode (a GitHub organization) maintains it in managedcode/dotnet-skills, which has 486 GitHub stars. The repository holds 81 skills in this directory. The repository was last updated on October 7, 2026.
Source: managedcode/dotnet-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.