Roslyn Codelens
Use when working with any .NET / C# code (.cs/.csproj/.sln/.slnx files), finding callers/references/implementations, checking compiler errors or warnings, running dotnet build for diagnostics, searching for a type/method/interface by name, inspecting DI registrations, detecting dead code or circular dependencies, inspecting source-generator output, or about to Grep/Glob across a C# codebase — activates when roslyn-codelens MCP tools are available.
Security AStatic scan found no risk patternsHow grading works ›
What this skill does
Roslyn Codelens is a community-contributed Claude Code skill in the scaffolders sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/roslyn-codelens/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when working with any .NET / C# code (.
Who uses this skill
The Roslyn Codelens Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 115,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/roslyn-codelens
curl -L https://claudskills.com/skills/roslyn-codelens/SKILL.md \
-o ~/.claude/skills/roslyn-codelens/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/roslyn-codelens/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/roslyn-codelens/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\roslyn-codelens\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Roslyn Codelens Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/roslyn-codelens/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Roslyn Codelens skill do?
Use when working with any .NET / C# code (.cs/.csproj/.sln/.slnx files), finding callers/references/implementations, checking compiler errors or warnings, running dotnet build for diagnostics, searching for a type/method/interface by name, inspecting DI registrations, detecting dead code or circular dependencies, inspecting source-generator output, or about to Grep/Glob across a C# codebase — activates when roslyn-codelens MCP tools are available.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Roslyn Codelens skill?
Use Roslyn Codelens when your Claude Code task falls under the Dev Tools category — specifically in the scaffolders area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Roslyn Codelens" or describe the task and let Claude pick). Browse related skills at
/category/tools/.
What is a Claude Code skill and how does the Roslyn Codelens skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Roslyn Codelens is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
MarcelRoozekrans. (2026). Roslyn Codelens [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/roslyn-codelens/
BibTeX
@misc{roslyn-codelens-2026,
author = {MarcelRoozekrans},
title = {Roslyn Codelens [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/roslyn-codelens/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/roslyn-codelens/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/roslyn-codelens.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/roslyn-codelens.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Roslyn Codelens"></iframe>
Security scan
Grade A · scanned 2026-06-13 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/roslyn-codelens/#security)
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