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Agent skill

Csharpier

by managedcode in managedcode/dotnet-skills

Use the open-source free CSharpier formatter for C and XML. An agent skill from managedcode/dotnet-skills.

MITAuto-check passedAgent Workflows

Install Csharpier

skills CLI
$ npx skills add managedcode/dotnet-skills --skill csharpier -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install managedcode/dotnet-skills csharpier --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/managedcode/dotnet-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/catalog/Tools/CSharpier/skills/csharpier .claude/skills/csharpier && rm -rf skills-src

Use ~/.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/

Facts

Skill name
csharpier
GitHub stars
486
Token cost
~1.1k tokens
SKILL.md length
472 words
Files
5 (incl. references)
Skills in repo
81
Repo updated
First seen
Licence
MIT

At a glance

Use the open-source free CSharpier formatter for C and XML. An agent skill from managedcode/dotnet-skills.

  • Works in 3 steps: Read the nearest AGENTS.md and confirm… → Run this skill's Workflow through the… → Return the Required Result Format with…
  • A .NET repo intentionally wants one opinionated formatter instead of a highly configurable dotnet format-driven style model
  • SKILL.md covers Trigger On, Value, Do Not Use For and Inputs, plus 8 more sections
  • Calls dotnet and rg

What it does

Csharpier is an agent skill from managedcode/dotnet-skills. Use the open-source free CSharpier formatter for C and XML. Use when a .NET repo intentionally wants one opinionated formatter instead of a highly configurable dotnet format-driven style model. USE FOR: the repo uses or wants CSharpier; the team prefers an opinionated formatter over many configurable style knobs. DO NOT USE FOR: repos that already standardized on dotnet format as the only formatter. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation…

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `manifest.json`, `references/commands.md` and `references/config.md`). Compatibility notes: Requires a .NET SDK-based repository; respects the repo's AGENTS.md commands first.

It sits in Agent Workflows, covering Linting and formatting and Codebase knowledge for agents. 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

  • A .NET repo intentionally wants one opinionated formatter instead of a highly configurable dotnet format-driven style model
  • : the repo uses
  • Wants CSharpier
  • The team prefers an opinionated formatter over many configurable style knobs

Example prompts

  • “/csharpier”

Requirements

  • Compatibility (from SKILL.md): Requires a .NET SDK-based repository; respects the repo's `AGENTS.md` commands first.

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  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.

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
    • rg

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    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 SDK-based repository; respects the repo's `AGENTS.md` commands first.

    From compatibility in the SKILL.md frontmatter.

Context cost

Csharpier loads about 1.1k tokens when it runs, and up to ~2.7k if it reads all its reference files. Until then it costs about 140 tokens; SKILL.md has 472 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~140
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.7k

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). 472 words, ~1,073 tokens.

Download SKILL.mdSave it as .claude/skills/csharpier/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.
name
csharpier
description
Use the open-source free `CSharpier` formatter for C# and XML. Use when a .NET repo intentionally wants one opinionated formatter instead of a highly configurable `dotnet format`-driven style model. USE FOR: the repo uses or wants CSharpier; the team prefers an opinionated formatter over many configurable style knobs. DO NOT USE FOR: repos that already standardized on dotnet format as the only formatter. 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 SDK-based repository; respects the repo's `AGENTS.md` commands first.

CSharpier for .NET

Trigger On

  • the repo uses or wants CSharpier
  • the team prefers an opinionated formatter over many configurable style knobs

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 already standardized on dotnet format as the only formatter

Inputs

  • the nearest AGENTS.md
  • current formatting ownership model
  • any .csharpierignore or .editorconfig

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. Decide whether CSharpier is the primary formatter or only complements other tools.
  2. Use check mode in CI.
  3. Keep ignore files and config explicit in repo.
  4. Do not let CSharpier and dotnet format both own the same formatting space without documentation.

Bootstrap When Missing

If CSharpier is not configured yet:

  1. Detect current state:
    • rg --files -g '.config/dotnet-tools.json' -g '.csharpierignore'
    • dotnet tool list --local
    • dotnet tool list --global
  2. Prefer local tool installation for reproducible CI:
    • dotnet new tool-manifest (if missing)
    • dotnet tool install csharpier
  3. Add .csharpierignore when needed and define ownership vs dotnet format in AGENTS.md.
  4. Add dotnet csharpier check . to CI.
  5. Run dotnet csharpier check . and return status: configured or status: improved.
  6. If the repo intentionally uses only dotnet format, return status: not_applicable unless migration is requested.

Deliver

  • explicit CSharpier ownership and commands
  • CI-safe formatter checks

Validate

  • formatter ownership is not ambiguous
  • the repo is comfortable with opinionated formatting decisions
Show full SKILL.md (191 more words)Show less

Ralph Loop

Use the Ralph Loop for every task, including docs, architecture, testing, and tooling work.

  1. Plan first (mandatory):
    • analyze current state
    • define target outcome, constraints, and risks
    • write a detailed execution plan
    • list final validation skills to run at the end, with order and reason
  2. Execute one planned step and produce a concrete delta.
  3. Review the result and capture findings with actionable next fixes.
  4. Apply fixes in small batches and rerun the relevant checks or review steps.
  5. Update the plan after each iteration.
  6. Repeat until outcomes are acceptable or only explicit exceptions remain.
  7. If a dependency is missing, bootstrap it or return status: not_applicable with explicit reason and fallback path.
Required Result Format
  • status: complete | clean | improved | configured | not_applicable | blocked
  • plan: concise plan and current iteration step
  • actions_taken: concrete changes made
  • validation_skills: final skills run, or skipped with reasons
  • verification: commands, checks, or review evidence summary
  • remaining: top unresolved items or none

For setup-only requests with no execution, return status: configured and exact next commands.

Load References

Example Requests

  • "Set up CSharpier for this repo."
  • "Compare CSharpier and dotnet format."

© 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 4 other files (references) in catalog/Tools/CSharpier/skills/csharpier of managedcode/dotnet-skills.

  • SKILL.md
  • manifest.json
  • references/commands.md
  • references/config.md
  • references/csharpier.md

Open the folder on GitHubat commit 535dd55

Compare with similar skills

Csharpier 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.

Csharpier compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Csharpier this skillmanagedcode/dotnet-skills486—~1.1kAutomated safety check: PassMIT
Mcaf Dotnet Csharpiermanagedcode/Storage138—~961Automated safety check: PassMIT
Git HooksProrise-cool/Claude-Code-Multi-Agent305—~3.6kAutomated safety check: NotesNone
Precheckayutaz/piper-plus220—~647Automated safety check: PassMIT
Mcaf Dotnetmanagedcode/Storage138—~1.6kAutomated safety check: PassMIT
Nemo Rl Session MemoryNVIDIA/skills3.5k—~1.4kAutomated safety check: PassApache-2.0

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  • Mcaf Dotnet Csharpier

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  • Git Hooks

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Works with

Categories

Questions about Csharpier

What does Csharpier do?

Use the open-source free CSharpier formatter for C and XML. An agent skill from managedcode/dotnet-skills. Csharpier is an agent skill from managedcode/dotnet-skills. Use the open-source free CSharpier formatter for C and XML.

When should I use Csharpier?

Csharpier fits situations like: A .NET repo intentionally wants one opinionated formatter instead of a highly configurable dotnet format-driven style model; : the repo uses; wants CSharpier; the team prefers an opinionated formatter over many configurable style knobs.

How do I install Csharpier in Claude Code?

Run `npx skills add managedcode/dotnet-skills --skill csharpier -a claude-code`. Or copy the skill folder (catalog/Tools/CSharpier/skills/csharpier in managedcode/dotnet-skills) into .claude/skills/csharpier in your project. Claude Code loads it when a task matches its description.

How do I install Csharpier in Codex?

Run `npx skills add managedcode/dotnet-skills --skill csharpier -a codex`. Or copy the skill folder (catalog/Tools/CSharpier/skills/csharpier in managedcode/dotnet-skills) into .agents/skills/csharpier in your project. Codex loads it when a task matches its description.

Can I use Csharpier 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 csharpier -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/csharpier, .gemini/skills/csharpier, .github/skills/csharpier and .opencode/skills/csharpier in your project.

What does Csharpier need to run?

Going by SKILL.md and its folder, Csharpier needs the command-line tools its instructions call (dotnet and rg). Compatibility (from SKILL.md): Requires a .NET SDK-based repository; respects the repo's `AGENTS.md` commands first..

Does Csharpier access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Csharpier 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 Csharpier use?

Csharpier 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 Csharpier use?

About 1.1k tokens (SKILL.md is roughly 4.3k 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 1.6k tokens, read only when the agent opens those files.

What are the alternatives to Csharpier?

Skills that share tags, products or a category with Csharpier: Mcaf Dotnet Csharpier (managedcode/Storage, 138 stars), Git Hooks (Prorise-cool/Claude-Code-Multi-Agent, 305 stars), Precheck (ayutaz/piper-plus, 220 stars) and Mcaf Dotnet (managedcode/Storage, 138 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Csharpier?

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.