Skills
18,283 skills, most installed first.
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statistics-mathpluginagentmarketplaceStatistics, probability, linear algebra, and mathematical foundations for data sciencelevel-designpluginagentmarketplaceLevel design fundamentals, pacing, difficulty progression, environmental storytelling, and spatial design for engaging gameplay experiences.java-concurrencypluginagentmarketplaceMaster Java concurrency - threads, executors, locks, CompletableFuture, virtual threadsjava-fundamentalspluginagentmarketplaceMaster core Java programming - syntax, OOP, collections, streams, and exception handlingjava-jpa-hibernatepluginagentmarketplaceMaster JPA/Hibernate - entity design, queries, transactions, performance optimizationjava-mavenpluginagentmarketplaceMaster Apache Maven - POM configuration, plugins, lifecycle, dependency managementjava-microservicespluginagentmarketplaceBuild microservices - Spring Cloud, service mesh, event-driven, resilience patternsjava-performancepluginagentmarketplaceJVM performance tuning - GC optimization, profiling, memory analysis, benchmarkingjava-testingpluginagentmarketplaceTest Java applications - JUnit 5, Mockito, integration testing, TDD patternsdocker-deploymentpluginagentmarketplaceContainerize and deploy Node.js applications with Docker including multi-stage builds, Docker Compose, and production optimizationexpress-rest-apipluginagentmarketplaceBuild production-ready RESTful APIs with Express.js including routing, middleware, validation, and error handling for scalable backend servicesmongoose-mongodbpluginagentmarketplaceWork with MongoDB in Node.js using Mongoose ODM for schema design, CRUD operations, relationships, and advanced queriesPandas Data AnalysispluginagentmarketplaceMaster data manipulation, analysis, and visualization with Pandas, NumPy, and MatplotlibPytest TestingpluginagentmarketplaceMaster test-driven development with pytest, fixtures, mocking, and CI/CD integrationreact-native-animationspluginagentmarketplaceMaster animations - Reanimated 3, Gesture Handler, layout animations, and performance optimizationmysqlpluginagentmarketplaceMySQL database administration and developmentfeature-prioritization-assistantpmpromptCalculate RICE scores and prioritize features systematically. Use when building your product roadmap and need to make data-driven prioritization decisions.prd-writerpmpromptGenerate comprehensive product requirements documents. Use when starting a new feature or product initiative and need structured documentation.thinking-in-betspmpromptUse when asked to "thinking in bets", "make decisions under uncertainty", "think probabilistically", "avoid resulting", "separate decision quality from outcomes", or "reduce bias in decisions". Helps make explicit bets and evaluate decisions on process, not results. The Thinking in Bets framework (from Annie Duke) applies poker strategy to business and life decisions.user-feedback-synthesizerpmpromptAnalyze collections of user feedback to identify patterns and themes. Use when you have user feedback from multiple sources that needs synthesis.distinctive-frontendpodoGenerates distinctive interfaces using four themed design systems — Cyberpunk, Brutalist, Vaporwave, and Nordic Minimalism — with pre-configured typography pairings, color systems, and staggered animations. Single skill: distinctive-frontend.academic-writingpoemsweYou must use this when producing any research prose — literature reviews, syntheses, analyses, methodology descriptions, discussion sections, abstracts, or any written output intended for an academic audience.web3-polymarketpolymarketPolymarket integration for prediction market trading on Polygon. Covers authentication (L1 EIP-712, L2 HMAC-SHA256, builder headers), order placement (GTC/GTD/FOK/FAK, batch, post-only, heartbeat), market data (Gamma API, Data API, orderbook, subgraph), WebSocket streaming (market/user/sports channels), CTF operations (split, merge, redeem, negative risk), bridge (deposits, withdrawals, multi-chain), and gasless relayer transactions. Use when building AI agents, autonomous market makers, predictpopai-powerpoint-pptxpopaiofficialCreate presentations (PPT) using PopAI API. Use when asked to create slides, presentations, decks, or PPT content. Has built-in research capabilities — just pass a topic. Supports uploading reference files (pptx/pdf/docx/images). Supports user's own pptx template with 100% layout fidelity. Also supports multi-round modifications to an existing PPT.alt-textposit-devGenerate and improve accessible alt text for data visualizations and images in R packages and Quarto documents. Use when the user wants to add, improve, or audit alt text for figures in a pkgdown site or .qmd files. Activate for requests that mention fig-alt, fig.alt, figure descriptions, or alt text in the context of an R package or Quarto document.brand-ymlposit-devCreate and use brand.yml files for consistent branding across Shiny apps and Quarto documents. Covers: (1) Creating new _brand.yml files, (2) Applying to Shiny (R and Python), (3) Using in Quarto, (4) Modifying existing files, and (5) Troubleshooting. Includes complete specifications and integration guides.cliposit-devComprehensive R package for command-line interface styling, semantic messaging, and user communication. Use this skill when working with R code that needs to: (1) Format console output with inline markup and colors, (2) Display errors, warnings, or messages with cli_abort/cli_warn/cli_inform, (3) Show progress indicators for long-running operations, (4) Create semantic CLI elements (headers, lists, alerts, code blocks), (5) Apply themes and customize output styling, (6) Handle pluralization in ucran-extrachecksposit-devPrepare R packages for CRAN submission by checking for common ad-hoc requirements not caught by devtools::check(). Use when: (1) Preparing a package for first CRAN release, (2) Preparing a package update for CRAN resubmission, (3) Reviewing a package to ensure CRAN compliance, (4) Responding to CRAN reviewer feedback. Covers documentation requirements, DESCRIPTION field standards, URL validation, examples, and administrative requirements.create-release-checklistposit-devCreate a release checklist and GitHub issue for an R package. Use when the user asks to "create a release checklist" or "start a release" for an R package.critical-code-reviewerposit-devRigorously review code or pull requests for correctness, security, accessibility, maintainability, tests, and edge cases. Use when users request a critical code review, want a guided walkthrough of findings, need implementer-facing feedback, or want to prepare, create, or submit a GitHub pull request review.describe-designposit-devResearch a codebase and create architectural documentation describing how features or systems work. Use when the user asks to: (1) Document how a feature works, (2) Create an architecture overview, (3) Explain code structure for onboarding or knowledge transfer, (4) Research and describe a system's design. Produces markdown documents with Mermaid diagrams and stable code references suitable for humans and AI agents.ggsqlposit-devWrite ggsql queries — a grammar of graphics for SQL. Use when the user wants to create, modify, or understand a ggsql visualization query.implementposit-devOrchestrates implementation of a plan file by delegating work to subagents in parallel. Verifies git branch state, tracks progress, and ensures high-quality implementation. Invoke with a plan file path and optional model override: /implement plans/my-plan.md [--model sonnet]lifecycleposit-devGuidance for managing R package lifecycle according to tidyverse principles using the lifecycle package. Use when: (1) Setting up lifecycle infrastructure in a package, (2) Deprecating functions or arguments, (3) Renaming functions or arguments, (4) Superseding functions, (5) Marking functions as experimental, (6) Understanding lifecycle stages (stable, experimental, deprecated, superseded), or (7) Writing deprecation helpers for complex scenarios.miraiposit-devHelp users write correct R code for async, parallel, and distributed computing using mirai. Use when users need to run R code asynchronously or in parallel, write mirai code with correct dependency passing, set up parallel workers, convert from future or parallel, use mirai_map, integrate with Shiny or promises, or configure cluster/HPC computing.pr-createposit-devCreates a pull request from current changes, monitors GitHub CI, and debugs any failures until CI passes. Activate when the user says "create pr", "make a pr", "open pull request", "submit pr", "pr for these changes", or wants to get their current work into a reviewable PR. Assumes the project uses git, is hosted on GitHub, and has GitHub Actions CI with automated checks (lint, build, tests, etc.). Does NOT merge - stops when CI passes and provides the PR link.pr-threads-addressposit-devAddress PR review feedback by systematically working through every unresolved PR review thread on the current branch's PR - analyze each comment, make the requested code changes (with tests where useful), commit, and optionally reply and resolve.pr-threads-resolveposit-devBulk resolve unresolved PR review threads on the current branch’s PR — typically after threads have been addressed manually or via /pr-threads-addressr-cli-appposit-devBuild command-line apps in R using the Rapp package. Use when creating a CLI tool in R, adding argument parsing to an R script, turning an R script into a command-line app, shipping CLIs in an R package, or using Rapp (the alternative Rscript front-end). Also use for shebang scripts, exec/ directory in R packages, or subcommand-based R tools.r-package-developmentposit-devR package development with devtools, testthat, and roxygen2. Use when the user is working on an R package, running tests, writing documentation, or building package infrastructure.release-postposit-devCreate professional package release blog posts following Tidyverse or Shiny blog conventions. Use when the user needs to: (1) Write a release announcement blog post for an R or Python package for tidyverse.org or shiny.posit.co, (2) Transform NEWS/changelog content into blog format, (3) Generate acknowledgments sections with contributor lists, (4) Format posts following specific blog platform requirements. Supports both Tidyverse (hugodown) and Shiny (Quarto) blog formats with automated contribushiny-bslibposit-devBuild modern Shiny dashboards and applications using bslib (Bootstrap 5). Use when creating new Shiny apps, modernizing legacy apps (fluidPage, fluidRow/column, tabsetPanel, wellPanel, shinythemes), or working with bslib page layouts, grid systems, cards, value boxes, navigation, sidebars, filling layouts, theming, accordions, tooltips, popovers, toasts, or bslib inputs. Assumes familiarity with basic Shiny.shiny-bslib-themingposit-devAdvanced theming for Shiny apps using bslib and Bootstrap 5. Use when customizing app appearance with bs_theme(), Bootswatch themes, custom colors, typography, brand.yml integration, Bootstrap Sass variables, custom Sass/CSS rules, dark mode and color modes, dynamic theme switching, real-time theming, theme inspection, or making R plots match the app theme with thematic.testing-r-packagesposit-devBest practices for writing R package tests using testthat version 3+. Use when writing, organizing, or improving tests for R packages. Covers test structure, expectations, fixtures, snapshots, mocking, and modern testthat 3 patterns including self-sufficient tests, proper cleanup with withr, and snapshot testing.working-onposit-devSet a tracking document as the source of truth for the current feature or task. Use when starting work on a feature, bug fix, or multi-step task that benefits from a persistent record of decisions, discoveries, and progress. Keeps the document updated as work proceeds.instrument-product-analyticsposthogAdd PostHog product analytics events to track user behavior. Use after implementing new features or reviewing PRs to ensure meaningful user actions are captured. Also handles initial PostHog SDK setup if not yet installed.react-doctorposthogDiagnose and fix React codebase health issues. Use when reviewing React code, fixing performance problems, auditing security, or improving code quality.instrument-error-trackingposthogAdd PostHog error tracking to capture and monitor exceptions. Use after implementing features or reviewing PRs to ensure errors are tracked with stack traces and source maps. Also handles initial PostHog SDK setup if not yet installed.instrument-feature-flagsposthogAdd PostHog feature flags to gate new functionality. Use after implementing features or reviewing PRs to ensure safe rollouts with feature flag controls. Also handles initial PostHog SDK setup if not yet installed.instrument-integrationposthogAdd PostHog SDK integration to your application. Use when setting up PostHog for the first time or reviewing PRs that need PostHog initialization. Covers SDK installation, provider setup, and basic configuration for any framework.