mcaf-dotnet-stylecop-analyzers

A guide for using StyleCop.Analyzers, a free .NET package that checks naming, code layout, documentation, and other style rules.

In plain words
What is it for?
Adding StyleCop.Analyzers, configuring its rules through .editorconfig and stylecop.json, and enforcing consistent C# style.
Why use it?
It catches inconsistent code style during development or builds when the standard .NET analyzers are not strict enough. It also clarifies where style settings should live.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/managedcode/mcpgateway/mcaf-dotnet-stylecop-analyzers
Any agent
npx skills add managedcode/MCPGateway --skill mcaf-dotnet-stylecop-analyzers
Clone the repo
git clone --depth 1 https://github.com/managedcode/MCPGateway

Made for: Claude Code, Codex.

Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 943 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 94% copy Near-identical to another mod 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 $0.00055 $0.00943
Opus 5 $0.00028 $0.00472
Sonnet 5 $0.00011 $0.00189
Haiku 4.5 $0.00006 $0.00094

Measured 3d ago against content hash a7fa458b8596, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mcaf-dotnet-stylecop-analyzers 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 3d 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.

Origin

This is a copy

94% identical to dotnet-stylecop-analyzers — 8 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.codex/skills/mcaf-dotnet-stylecop-analyzers/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCAF: .NET StyleCopAnalyzers

Trigger On

  • the repo wants StyleCop.Analyzers
  • naming, layout, or documentation style needs stronger enforcement
  • the team needs stylecop.json guidance

Value

  • produce a concrete project delta: code, docs, config, tests, CI, or review artifact
  • reduce ambiguity through explicit planning, verification, and final validation skills
  • leave reusable project context so future tasks are faster and safer

Do Not Use For

  • repos that intentionally rely only on SDK analyzers
  • repos where StyleCop overlaps too heavily with an existing style package and no consolidation is planned

Inputs

  • the nearest AGENTS.md
  • current .editorconfig
  • any existing stylecop.json

Quick Start

  1. Read the nearest AGENTS.md and confirm scope and constraints.
  2. Run this skill's Workflow through the Ralph Loop until outcomes are acceptable.
  3. Return the Required Result Format with concrete artifacts and verification evidence.

Workflow

  1. Add StyleCop.Analyzers only if the repo wants its opinionated style rules.
  2. Keep severity in the root .editorconfig.
  3. Use stylecop.json only for StyleCop-specific behavioral options.
  4. Prefer one checked-in stylecop.json per repo unless a project genuinely needs its own behavior.
  5. Avoid rule duplication with SDK analyzers or other analyzer packs when possible.

Bootstrap When Missing

If StyleCop.Analyzers is not configured yet:

  1. Detect current state:
    • rg -n "StyleCop\\.Analyzers|stylecop\\.json" -g '*.csproj' -g 'stylecop.json' .
  2. Add package to the intended scope:
    • dotnet add PROJECT.csproj package StyleCop.Analyzers
  3. Keep severity in root .editorconfig and use stylecop.json only for StyleCop-specific behavior.
  4. Prevent overlap with existing analyzer packs by defining ownership.
  5. Run dotnet build SOLUTION_OR_PROJECT and return status: configured or status: improved.
  6. If the repo intentionally uses SDK analyzers only, return status: not_applicable.

Read the full file on GitHub · 106 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 106 lines · 55 tokens per session scan A a7fa458b8596

Subscribe to this mod's changes

mcaf-dotnet-stylecop-analyzers is a skill published in the GitHub repository managedcode/MCPGateway (5 stars, last pushed 3d ago), licensed MIT. It adds 55 tokens to every session and 943 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to dotnet-stylecop-analyzers, differing in 8 lines, and is treated as a copy.

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