posit-dev/skills · r-lib/cran-extrachecks/SKILL.md

cran-extrachecks skillA

cran-extrachecks is agent-read markdown (skill) from posit-dev/skills: Prepare R packages for CRAN submission by checking for common ad-hoc requirements not caught by devtools::check(). Use when: (1) Preparing a package for first CRAN release, (2) Preparing a package update for CRAN resubmission, (3) Reviewing a package to ensure CRAN compliance, (4) Responding to CRAN reviewer feedback. Covers documentation requirements, DESCRIPTION field standards, URL validation, examples, and administrative requirements..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add posit-dev/skills/cran-extrachecks@v1.0
Exact content
mdr add posit-dev/skills/cran-extrachecks@sha256:faade469745c0161

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ng5g3afzra4er5sj.svg)](https://markdownregistry.com/a/art_ng5g3afzra4er5sj)

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Versions

versioncommittedcommitsizeaudit
v1.0 latest2026-02-20 0fabf07 14,853 BA view · diff
git:20260121.5869b9b2026-01-21 5869b9b 14,772 BA view · diff
git:20260118.49c8b8a2026-01-18 49c8b8a 15,612 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (14853 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 · 516 stars · license MIT · pushed 2026-09-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ng5g3afzra4er5sj
GET https://markdownregistry.com/api/v1/resolve?ref=posit-dev/skills/cran-extrachecks
GET https://markdownregistry.com/api/v1/blob/faade469745c0161f77e5972c01b0a30af5873928356dfc836e9749760e226ef

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.