Rap

RAP Plugin for Claude Code

A Claude Code plugin that helps analysts implement Reproducible Analytical Pipelines (RAP) in R and Python, based on the UK Government Analysis Function methodology.

Installation

In Claude Code, run:

/plugin marketplace add ivyleavedtoadflax/RapSkill
/plugin install rap

No bootstrap or shell commands required — Claude Code's built-in plugin marketplace handles everything.

Available Commands

R

Command	Description
/rap-init	Scaffold a RAP-compliant R project with standard directory structure, configuration files, and starter templates
/rap-check	Audit your R project against the three UK government RAP maturity levels (Baseline/Silver/Gold)
/rap-output	Generate accessible statistical outputs: spreadsheets (a11ytables), GOV.UK-styled charts (govstyle), R Markdown reports
/rap-test	Set up testthat infrastructure and generate starter test files for existing R functions
/rap-pipeline	Configure {targets} build automation with a generated _targets.R reflecting your workflow

Python

Command	Description
/rap-py-init	Scaffold a RAP-compliant Python project with src/ layout, pyproject.toml, and uv dependency management
/rap-py-check	Audit your Python project against the three UK government RAP maturity levels (Baseline/Silver/Gold)
/rap-py-output	Generate accessible statistical outputs: spreadsheets (gptables), GOV.UK matplotlib theme, Jupyter notebook or Quarto reports
/rap-py-test	Set up pytest infrastructure and generate starter test files for existing Python functions
/rap-py-pipeline	Configure build automation: Makefile (default) or DVC pipeline for complex data workflows

Python Tooling

The Python skills use modern, well-supported tools:

Purpose	Tool	Why
Dependency management	uv	Fast, lockfile-based, PEP 621 compliant
Testing	pytest	Universal Python testing standard
Linting & formatting	ruff	Fast all-in-one linter and formatter
Accessible spreadsheets	gptables	GSS-maintained, UK gov standard
Charts	matplotlib	With GOV.UK accessible theme
Reports	Jupyter / Quarto	Notebook default, Quarto optional
Build automation	Make / DVC	Simple default, DVC for complex pipelines

RAP Maturity Levels

The UK government defines three levels of RAP compliance:

Baseline

• Code written in an open-source language (R or Python)
• Version controlled with Git
• Repository includes README with reproduction steps
• Code has been peer reviewed
• Code is published openly

Silver (all Baseline requirements plus)

• Outputs produced with minimal manual intervention
• Comprehensive documentation including function docstrings
• Well-organized code following standard directory structure
• Reusable functions used where appropriate
• Adherence to coding standards
• Testing framework
• Dependency management
• Automatic logging
• Tidy data format for outputs

Gold (all Silver requirements plus)

• Code is fully packaged
• Automated testing via CI/CD (GitHub Actions)
• Process runs on event-based triggers or schedule
• Changes documented with changelog and semantic versioning

UK RAP Resources

• Government Analysis Function — RAP
• RAP Strategy
• NHS RAP Community of Practice
• Building Reproducible Analytical Pipelines with R
• RAP Companion