Building, styling, testing, debugging, or observing a Shiny for R app - library(shiny), shinyApp(), runApp(). Index skill: read this, then open the linked reference for the task. Covers reactivity (reactive/observe/req/isolate/bindEvent); modules; async promises and ExtendedTask; bslib layouts, navigation, cards…
Running experiments out of the data warehouse instead of via dedicated experiment platforms. SQL-based assignment, exposure logging discipline, metric definitions in dbt models, statistical analysis in SQL or Python, variance reduction with CUPED, sequential testing, and the operational tradeoffs vs platforms like…
Design and run a documentation system for a team or product. Use this skill when planning what to document, choosing a documentation tool, organizing existing docs, fixing stale documentation, designing a maintenance cadence, or scoping technical writing work. Triggers on documentation, docs, tech writing, knowledge…
Plan and run a multi-language or multi-region site. Use this skill when adding new locales, choosing URL structure for languages (subfolders vs subdomains vs ccTLDs), implementing hreflang, planning translation workflow, handling currency and date formats, designing for RTL languages, or auditing a stalled…
Instructions for cloudinary/cloudinary_npm, a project described as: Upload, transform, optimize, and manage images and videos with Cloudinary from Node.js.
Team instructions for a Python web-testing project. They organize shared rules for code quality, testing, Git, and browser testing, and require research before complex work or unfamiliar dependencies.
XcodeBuildMCP is a Model Context Protocol server that provides tools for Xcode project management, simulator management, and app utilities. Runs locally from the xcodebuildmcp npm package.
WHEN designing or debugging App Intent-first iOS features for Siri, Shortcuts, widgets, Live Activities, or SwiftUI reuse; NOT UIKit-only flows; provides AppEntity, metadata, prompting, and view-reuse patterns.
WHEN scraping iOS/macOS App Store data (apps, reviews, ratings, search); NOT for installing or testing apps; retrieves structured JSON data using iTunes/App Store APIs with curl and jq formatting.
WHEN orchestrating interdependent specs, stories, or work items across agents—deciding what runs serially, what may run in parallel, and how each unit is independently verified; NOT for single-task delegation, code review, or PR delivery mechanics; returns a contract-first execution graph with a per-node verifier.
Expert code review specialist. Use PROACTIVELY after writing or modifying code, before commits, or when asked to review changes. Focuses on quality, security, performance, and maintainability.
Use this agent proactively to guide refactoring decisions during code improvement and reactively to assess refactoring opportunities after tests pass (TDD's third step). Invoke when tests are green, when considering abstractions, or when reviewing code quality.