r-cli SKILL.md skillA

r-cli from posit-dev/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add posit-dev/skills/r-cli@v1.0

Pins v1.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
posit-dev/skills
Path
r-lib/r-cli/SKILL.md
Versions recorded
1
Latest version
v1.0, committed Oct 6, 2026
Size
11,215 bytes
Repository stars
556
License
MIT

Comprehensive R package for command-line interface styling, semantic messaging, and user communication. Use this skill when working with R code that needs to: (1) Format console output with inline markup and colors, (2) Display errors, warnings, or messages with cli_abort/cli_warn/cli_inform, (3) Show progress indicators for long-running operations, (4) Create semantic CLI elements (headers, lists, alerts, code blocks), (5) Apply themes and customize output styling, (6) Handle pluralization in…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# CLI for R Packages

## When to Use What

task: Display error with context and formatting
use: `cli_abort()` with inline markup and bullet lists

task: Show warning with formatting
use: `cli_warn()` with inline markup

task: Display informative message
use: `cli_inform()` with inline markup

task: Show progress for counted operations
use: `cli_progress_bar()` with total count

task: Show simple progress steps
use: `cli_progress_step()` with status messages

task: Format code or function names
use: `{.code ...}` or `{.fn package::function}`

task: Format file paths
use: `{.file path/to/file}`

task: Format package names
use: `{.pkg packagename}`

task: Format variable names
use: `{.var variable_name}`

task: Format values
use: `{.val value}`

task: Handle singular/plural text
use: `{?s}` or `{?y/ies}` with pluralization

task: Create headers
use: `cli_h1()`, `cli_h2()`, `cli_h3()`

task: Create alerts
use: `cli_alert_success()`, `cli_alert_danger()`, `cli_alert_warning()`, `cli_alert_info()`

task: Create lists
use: `cli_ul()`, `cli_ol()`, `cli_dl()` with `cli_li()`

## Inline Markup Essentials

Use inline markup with `{.class content}` syntax to format text:

```r
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add posit-dev/skills/r-cli@sha256:f9dfd60df5cd5b12

The line at the top of this page pins the label v1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_2q55jqgc7p3qpwrk.svg)](https://markdownregistry.com/a/art_2q55jqgc7p3qpwrk)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 6, 2026.

versioncommittedcommitsizeaudit
v1.0 latest2026-10-06 0300946 11,215 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (11215 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

posit-dev/skills · 556 stars · license MIT · pushed 2026-11-02 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2q55jqgc7p3qpwrk
GET https://markdownregistry.com/api/v1/resolve?ref=posit-dev/skills/r-cli
GET https://markdownregistry.com/api/v1/blob/f9dfd60df5cd5b12fb59e6ce04205d4ee1f1747b0b1ef3e862056214d64c7d06

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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