skills MCP — Cas d'usage, Installer & Démo en direct

Pourquoi l'utiliser

Fonctionnalités clés

R-first: tidyverse idioms, {{data-masking}}, S3/S4 method guidance
Quarto authoring (documents, dashboards, websites)
R package development (devtools/usethis conventions)
Reproducible environments (renv, Positron)
Vendor-maintained quality bar
Compatible with Claude Code and Posit's own agents

Démo en direct

Aperçu en pratique

skills-skill-2.replay ▶ prêt

0/0

Installer

Choisissez votre client

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "skills-skill-2": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/posit-dev/skills",
        "~/.claude/skills/skills"
      ],
      "_inferred": true
    }
  }
}

Ouvrez Claude Desktop → Settings → Developer → Edit Config. Redémarrez après avoir enregistré.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "skills-skill-2": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/posit-dev/skills",
        "~/.claude/skills/skills"
      ],
      "_inferred": true
    }
  }
}

Cursor utilise le même schéma mcpServers que Claude Desktop. La config projet l'emporte sur la globale.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "skills-skill-2": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/posit-dev/skills",
        "~/.claude/skills/skills"
      ],
      "_inferred": true
    }
  }
}

Cliquez sur l'icône MCP Servers dans la barre latérale Cline, puis "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "skills-skill-2": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/posit-dev/skills",
        "~/.claude/skills/skills"
      ],
      "_inferred": true
    }
  }
}

Même format que Claude Desktop. Redémarrez Windsurf pour appliquer.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "skills-skill-2",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/posit-dev/skills",
        "~/.claude/skills/skills"
      ]
    }
  ]
}

Continue utilise un tableau d'objets serveur plutôt qu'une map.

~/.config/zed/settings.json

{
  "context_servers": {
    "skills-skill-2": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/posit-dev/skills",
          "~/.claude/skills/skills"
        ]
      }
    }
  }
}

Ajoutez dans context_servers. Zed recharge à chaud à la sauvegarde.

claude mcp add skills-skill-2 -- git clone https://github.com/posit-dev/skills ~/.claude/skills/skills

Une seule ligne. Vérifiez avec claude mcp list. Supprimez avec claude mcp remove.

Cas d'usage

Usages concrets : skills

How to scaffold a proper R package

👤 R developers starting a new package and wanting usethis/devtools conventions ⏱ ~30 min intermediate

Quand l'utiliser : You're tired of hand-writing DESCRIPTION, NAMESPACE, and roxygen2 boilerplate.

Prérequis

Skill installed — git clone https://github.com/posit-dev/skills ~/.claude/skills/posit-skills
R + devtools — install.packages('devtools')

Déroulement

Scaffold

Use Posit R-package skill. Create a new package 'tidylaundry' with 2 exported functions: wash() and fold().✓ Copié

→ Directory with DESCRIPTION, NAMESPACE, R/, tests/testthat/, README
Add roxygen

Add roxygen2 docs with @param, @return, @examples for each function.✓ Copié

→ Inline docs that devtools::document() converts to man/
Smoke test

Write testthat tests covering happy path + one edge case each.✓ Copié

→ Tests passing under devtools::test()

Résultat : A package that passes R CMD check on day one.

Pièges

Generated code uses base R where tidyverse would be clearer (or vice versa) — State the style preference upfront

Author a reproducible Quarto report

👤 Analysts publishing reports with code + narrative ⏱ ~45 min intermediate

Quand l'utiliser : You need to share analysis with stakeholders in a reproducible format.

Déroulement

Scaffold Quarto doc

Use Posit Quarto skill. Create a report template with YAML header, exec defaults, and Tufte theme.✓ Copié

→ .qmd file with chunked code + narrative
Fill with analysis

Load data/sales.csv and produce a monthly revenue chart with ggplot + a 2-paragraph insight.✓ Copié

→ Chunks that render to HTML/PDF
Pin environment

Capture versions with renv::snapshot().✓ Copié

→ renv.lock produced

Résultat : A reproducible report anyone can re-render given the data.

Pièges

Quarto render fails silently on missing system deps — Check quarto check output; common issue is missing tinytex or chromium for PDF

Scaffold a Shiny app with modern patterns

👤 R developers building internal apps ⏱ ~40 min intermediate

Quand l'utiliser : New Shiny app, want modules + bslib theming from the start.

Déroulement

Scaffold

Use Posit Shiny skill. Create an app with bslib::page_fluid, 2 modules: upload + plot.✓ Copié

→ app.R with module files in R/
Add reactive flow

Wire upload module's reactive output into plot module's input.✓ Copié

→ Reactives connected; app runs

Résultat : A modular Shiny app that's easy to extend.

Combinaisons

Associez-le à d'autres MCPs pour un effet X10

skills-skill-2 + claude-code-skill-factory-skill

Use Posit skills as reference patterns when authoring new skills

Show me the structure of a Posit skill, then /build a parallel skill for Julia package dev.✓ Copié

Outils

Ce que ce MCP expose

Outil	Entrées	Quand appeler
R package scaffolding	-	New package
Quarto authoring	-	Reports and docs
Shiny patterns	-	Internal app dev
Reproducibility (renv)	-	Pinning environment

Coût et limites

Coût d'exécution

Quota d'API: None
Tokens par appel: Varies per skill
Monétaire: Free
Astuce: R package scaffolds are small token-wise; Quarto with data analysis can balloon.

Sécurité

Permissions, secrets, portée

Stockage des identifiants : No credentials

Sortie de données : None by default

Dépannage

Erreurs courantes et correctifs

Generated R code uses outdated tidyverse APIs

State target package versions: 'dplyr 1.1+, tidyselect 1.2+'

Skill not triggered on R contexts

Claude auto-triggers on file extensions; explicitly invoke 'Use Posit R skills ...' to guarantee

Alternatives

skills vs autres

Alternative	Quand l'utiliser	Compromis
Hand-written with usethis	You already know the conventions cold	More control, slower setup

Plus

Ressources

📖 Lire le README officiel sur GitHub

🐙 Voir les issues ouvertes

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