R package development with devtools, testthat and roxygen2

Prerequisites: an R package project and an R environment with devtools, testthat and roxygen2 installed — the skill is guidance the agent follows, not software Install "R package development with devtools, testthat and roxygen2" for me. It gives my agent Simon P. Couch's R package workflow from Posit's official repo: devtools command lines (load_all, test with filters, document, check), code style (air format, base pipe |>, \() one-liners), testing conventions (snapshot tests for errors/warnings, no bare expect_true), roxygen2 docs (80-char wrap, pkgdown index sync), and NEWS.md discipline (user-facing bullets, alphabetical by function, issue references). MIT-licensed. Repository: https://github.com/posit-dev/skills/blob/main/r-lib/r-package-development/SKILL.md 1. Fetch the SKILL.md file (and any helper files) from the repository path into a temporary folder and summarize what it does in one or two sentences. 2. Safety check: review the SKILL.md and scripts for anything suspicious (unexpected network calls, shell commands, credential harvesting). This repo should contain zero secrets in code, credentials only via the secure vault, allowed hosts declared in the SKILL.md. Verify that holds here; STOP on any red flag and tell me. 3. Install it as a skill: copy SKILL.md and its helper files into the agent's skills directory, in a folder named "r-package-development". 4. Verify with no network calls: frontmatter valid, files in place. 5. Report what was installed, where, and what I still need to do myself (e.g. point the agent at my R package directory; nothing else — it's a methodology). GitHub is optional: if I have a GitHub account or the gh CLI, you may use it; otherwise public access is fine. Never require it unless it's in the prerequisites above. Rules: don't touch anything outside the temp folder and the install target. If anything looks off, stop and ask me.