CSharpAgentSkills
AGENTS.md2 starsChanged 42 days agoMITView on GitHub
This repository holds agent skills for C# and .NET work. It contains no buildable solution.
Where files are headingNew AGENTS.md files have more rules about keeping secrets out of the code, and fewer about code style.
Of the AGENTS.md files we read, the 31,843 first seen in the last six months, against the older ones: the kind of rule that gained most share, and the kind that lost most. About files like this in general, not this one, and an estimate, since a kind is a pattern in the words.
In this repository56 other files it gives its agents.
- CLAUDE.mdCLAUDE.md
- benchmarkingSkill
- commit-messagesSkill
- csharp-15-syntaxSkill
- csharp-aot-trimmingSkill
- csharp-api-designSkill
- csharp-assembly-inspectionSkill
- csharp-asyncSkill
- csharp-collections-modernSkill
- csharp-concurrency-primitivesSkill
- csharp-data-layoutSkill
- csharp-debuggingSkill
- csharp-discardsSkill
- csharp-disposable-patternsSkill
- csharp-docsSkill
- csharp-error-handlingSkill
- csharp-extension-membersSkill
- csharp-generics-modernSkill
- csharp-guard-clausesSkill
- csharp-json-source-generationSkill
- csharp-language-versionsSkill
- csharp-logging-diagnosticsSkill
- csharp-lspSkill
- csharp-modern-typesSkill
- csharp-nullabilitySkill
- csharp-nullable-migrationSkill
- csharp-nunitSkill
- csharp-pattern-matchingSkill
- csharp-performanceSkill
- csharp-polyfillsSkill
- csharp-source-generatorsSkill
- csharp-static-lambdasSkill
- csharp-string-handlingSkill
- csharp-tunitSkill
- csharp-verificationSkill
- dispatching-subagentsSkill
- dotnet-11-librariesSkill
- dotnet-analyzersSkill
- dotnet-central-package-managementSkill
- dotnet-file-based-appsSkill
- dotnet-msbuild-usingsSkill
- dotnet-multi-targetingSkill
- dotnet-project-hygieneSkill
- dotnet-runSkill
- dotnet-runtime-asyncSkill
- dotnet-slnxSkill
- dotnet-test-platformsSkill
- executing-plansSkill
- performance-bounded-deduplicationSkill
- roslyn-analyzer-performanceSkill
- roslyn-discoverySkill
- roslyn-duplicate-detectionSkill
- roslyn-guard-rewritersSkill
- roslyn-rewritersSkill
- subagent-driven-developmentSkill
- tddSkill
The file
We split this AGENTS.md into the rules it gives an agent
4 rules. About 0 are common, 3 are distinctive, and 1 is very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈3
Distinctive · estimate
This author's own choices. Worth a look.
1
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 13
Keep skills agent-agnostic.
- Distinctive: line 16
Keep instructions concise and direct.
- Distinctive: line 20
Add a new skill to the table in README.md.
- Very specific: line 21
Commit messages follow Conventional Commits (see skills/commit-messages).
≈ “Common” is an estimate: at least 1 in 5 of the 40,246 AGENTS.md files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Repository guide
This repository holds agent skills for C# and .NET work. It contains no buildable solution.
Layout
skills/<name>/SKILL.md: one skill per folder. The folder name must match thenamein the frontmatter.- Companion files (helpers, examples, targets) live beside the
SKILL.mdthat references them.
Writing skills
- Frontmatter has
name(lowercase, hyphenated) anddescription. The description says when to use the skill; agents choose skills from it. - Keep skills agent-agnostic. Do not name agent-specific tools, paths or products; describe the action instead.
- Refer to other skills by name in backticks, for example
csharp-tunit. Only reference skills that exist in this repository. - Example
.csfiles are single-file apps (dotnet run file.cs). Keep them runnable on the current .NET SDK. - Keep instructions concise and direct.
Changes
- Add a new skill to the table in
README.md. - Commit messages follow Conventional Commits (see
skills/commit-messages).
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.