add-recipe-steplisted

# Add Recipe Step Guide for developing new preprocessing steps that extend the recipes package. This skill provides best practices, complete code templates, and testing patterns for creating custom recipe steps. -------------------------------------------------------------------------------- ## Two Development Contexts This skill supports **two distinct development contexts**: ### 🆕 Extension Development (Default) **Creating a new R package** that extends recipes with custom steps. - ✅ Use this for: New packages, standalone steps, CRAN submissions - ⚠️ **Constraint**: Must use `recipes::` prefix for all functions ### 🔧 Source Development (Advanced) **Contributing directly to recipes** via pull requests. - ✅ Use this for: Contributing to tidymodels/recipes repository - ✨ **Benefit**: Can use internal functions directly (no prefix needed) -------------------------------------------------------------------------------- ## Getting Started **INSTRUCTIONS FOR CLAUDE:** Run the verification script first to determine the development context: ```bash Rscript -e 'source(Sys.glob(path.expand("~/.claude/plugins/cache/tidymodels-skills/tidymodels-dev/*/tidymodels/shared-references/scripts/verify-setup.R"))[1])' ``` **Then follow the appropriate path based on the output:** - **Output: "All checks for source development complete."** → Go to [Source Development Guide](references/source-guide.md) - **Output: "All checks for extension development complete." (no warnings)