csharp-code-review

csharp-code-review is a skill for Claude Code from JeongHeonK/c-sharp-custom-marketplace. It costs 52 tokens per session (2,130 once invoked), scanned A, original, no licence file.

A C# code-review skill that examines design, object-oriented structure, newer C# features, and performance.

In plain words
What is it for?
Use it before pull requests, during performance work, or when reviewing legacy C# code.
Why use it?
It helps identify quality and maintainability problems before code is submitted or while older code is being audited.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Part of the csharp-marketplace plugin — 7 skills shipped together

Good fit Use it before pull requests, during performance work, or when reviewing legacy C# code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jeongheonk/c-sharp-custom-marketplace/csharp-code-review
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add JeongHeonK/c-sharp-custom-marketplace --skill csharp-code-review
Clone the repo
git clone --depth 1 https://github.com/JeongHeonK/c-sharp-custom-marketplace

Made for: Claude Code.

Or install csharp-marketplace, the plugin that ships this one along with the rest of its 7 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for csharp-code-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/jeongheonk/c-sharp-custom-marketplace/csharp-code-review/github.svg)](https://agentmods.dev/skills/jeongheonk/c-sharp-custom-marketplace/csharp-code-review)
Your own site
<a href="https://agentmods.dev/skills/jeongheonk/c-sharp-custom-marketplace/csharp-code-review"><img src="https://agentmods.dev/badge/skills/jeongheonk/c-sharp-custom-marketplace/csharp-code-review/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for csharp-code-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/jeongheonk/c-sharp-custom-marketplace/csharp-code-review"><img src="https://agentmods.dev/badge/skills/jeongheonk/c-sharp-custom-marketplace/csharp-code-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,130 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00052 $0.02130
Opus 5 $0.00026 $0.01065
Sonnet 5 $0.00010 $0.00426
Haiku 4.5 $0.00005 $0.00213

Measured 8d ago against content hash be81286f899c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

csharp-code-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/csharp-code-review/SKILL.md · 207 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 207 lines · 52 tokens per session scan A be81286f899c

Subscribe to this mod's changes

csharp-code-review is a skill published in the GitHub repository JeongHeonK/c-sharp-custom-marketplace (5 stars, last pushed 6mo ago), with no licence file. It adds 52 tokens to every session and 2,130 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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