r-package-skills

You are evaluating test outputs against assertions to determine if a skill works correctly.

Use when code loads ellmer, btw, mcptools, ragnar, or vitals, building LLM-powered R applications, implementing RAG workflows, or choosing between R AI packages (meta-skill for ellmer/btw/mcptools/ragnar/vitals)

Use when code loads or uses btw (library(btw), btw::), providing R session context to LLMs, registering tools for ellmer chat, or copying R object descriptions to clipboard

Use when code loads or uses collapse (library(collapse), collapse::), performing fast grouped or weighted statistics in R, or seeking faster alternatives to dplyr aggregation

Use when code loads or uses duckplyr (library(duckplyr), duckplyr::), processing large datasets with dplyr syntax, working with Parquet files in R, or needing lazy evaluation for bigger-than-memory data

Use when code loads or uses duckspatial (library(duckspatial), duckspatial::), performing spatial joins or areal interpolation on large vector datasets in R, or needing faster spatial operations than sf

Use when code loads or uses ellmer (library(ellmer), chat_openai, chat_claude, chat_ollama), chatting with LLMs from R, building chatbots, or extracting structured data from text with LLMs

Use when code loads or uses flextable (library(flextable), flextable::), creating formatted tables for Word (.docx), PowerPoint (.pptx), HTML, or PDF in R, or needing merged cells and conditional formatting

Use when code loads or uses freestiler, working with .pmtiles files, creating or serving PMTiles vector tilesets in R, or preparing spatial data for mapgl/MapLibre visualization

Use when code loads or uses mapgl (library(mapgl), mapgl::), calls maplibre()/mapboxgl()/add_*_layer()/maplibre_proxy(), builds interactive WebGL maps in R, displays PMTiles on a map, or creates story maps / scrollytelling in R Shiny

Use when code loads mapgl or freestiler, working with .pmtiles files, creating interactive maps in R, choosing between R mapping packages, or working with large spatial datasets for visualization

Use when code loads or uses mcptools (library(mcptools), mcptools::), connecting AI agents to R sessions via MCP, or exposing R as an MCP server for Claude Code or VS Code

Use when creating, editing, or validating R package skills (library(pkg), pkg::), or gathering R package documentation (CRAN, pkgdown, vignettes) to generate a skill

Use when code loads or uses ragnar (library(ragnar), ragnar::), implementing RAG in R, creating vector stores, embedding documents for semantic search, or building retrieval pipelines

Use when code loads or uses vitals (library(vitals), vitals::), evaluating LLM output quality, scoring AI responses, testing RAG retrieval accuracy, or benchmarking prompt changes in R