Code Gen
Generate code, boilerplate, scaffolding
writing-plans
by CodingCossack
Structured implementation planning for multi-step development tasks. Use when you have a spec or requirements and need to break work into executable steps.
plg-ideas
by SkeneTechnologies
When the user wants PLG ideas, tactics, or inspiration -- a mega-reference of 100+ product-led growth strategies organized by category. Also use when the user says "growth ideas," "PLG playbook," "growth tactics," "what should we try," or "growth brainstorm." For PLG strategy, see plg-strategy. For experimentation, see growth-experimentation.
create-skill
by siviter-xyz
Guide for creating effective skills following best practices. Use when creating or updating skills that extend agent capabilities.
frontend-engineer
by siviter-xyz
Frontend development guidelines for React/TypeScript applications. Modern patterns including Suspense, lazy loading, useSuspenseQuery, file organization with features directory, MUI v7 styling, TanStack Router, performance optimization, and TypeScript best practices. Use when creating components, pages, features, fetching data, styling, routing, or working with frontend code.
gcse-english-language-tutor
by markpitt
GCSE English Language tutor and revision assistant for 15–16 year old students preparing for 2026 exams across AQA, Edexcel, OCR, Eduqas, and WJEC boards. Use when a student asks for help understanding reading analysis, writing techniques, exam technique, revising for GCSE English Language, practising past paper questions, or improving their creative or transactional writing.
node-red
by jwiegley
Edit, analyze, and create Node-RED flows by working with flows.json files, understanding node types, and applying Node-RED best practices. Use when the user mentions Node-RED, flows.json, flow development, or needs to modify Node-RED configurations.
kiss-principle
by markpitt
Apply the K.I.S.S principle (Keep It Simple, Stupid) to reduce complexity, improve maintainability, and solve problems elegantly. Use when designing systems, writing code, planning solutions, creating documentation, architecting features, or making decisions where simplicity drives quality and efficiency.
root-cause-analysis
by markpitt
Conducts systematic root cause analysis using proven methodologies including Toyota's 5 Whys, Ishikawa fishbone diagrams, Pareto analysis, and fault tree analysis. Use when investigating bugs, debugging code, troubleshooting systems, diagnosing equipment failures, analyzing life problems, or identifying underlying causes of any issue across software engineering, hardware maintenance, process failures, or personal challenges.
growth-experimentation
by SkeneTechnologies
When the user wants to design, prioritize, or analyze growth experiments -- including A/B tests, hypothesis frameworks, ICE/RICE scoring, or growth sprints. Also use when the user says "A/B test," "experiment design," "growth sprint," "experiment prioritization," or "statistical significance." For analytics setup, see product-analytics. For growth modeling, see growth-modeling.
viral-loops
by SkeneTechnologies
When the user wants to design product-driven viral growth -- including invite mechanics, collaboration loops, embedding loops, or network effects. Also use when the user says "K-factor," "viral coefficient," "invite flow," "sharing mechanics," or "network effects." For structured referral programs, see referral-program. For growth loop design, see growth-loops.
sentry-python-setup
by getsentry
Setup Sentry in Python apps. Use when asked to add Sentry to Python, install sentry-sdk, or configure error monitoring, profiling, or logging for Python applications, Django, Flask, FastAPI.
plg-mental-models
by SkeneTechnologies
When the user needs mental models or frameworks for PLG decisions -- including product-channel fit, time-to-value, network effects, habit loops, or pricing psychology. Also use when the user asks "what framework should I use," "how should I think about this," or references a specific model like "adjacent user theory" or "bowling alley framework." For comprehensive PLG strategy, see plg-strategy. For growth loops, see growth-loops.
excalidraw-slides
by ZunbaRan
This skill should be used when the user asks to "create slides", "make a PPT", "generate presentation", "create deck", "制作幻灯片", "生成演示文稿". Generates professional 16:9 presentation slides in Excalidraw JSON format.
create-agents-md
by siviter-xyz
Create AGENTS.md files for project-specific inline rules. Use when adding small, project-specific instructions that should be committed in repos.
nixos
by jwiegley
Resolve NixOS issues using research and sequential thinking
engagement-loops
by SkeneTechnologies
When the user wants to design engagement loops that drive repeated product usage -- including notification strategy, habit formation, or re-engagement triggers. Also use when the user says "DAU/MAU," "habit loop," "trigger action reward," "engagement framework," or "how to bring users back." For retention analysis, see retention-analysis. For feature adoption, see feature-adoption.
expansion-revenue
by SkeneTechnologies
When the user wants to grow revenue from existing customers -- including seat expansion, plan upgrades, usage upsells, or cross-sell strategies. Also use when the user says "NRR," "net revenue retention," "upsell," "expansion MRR," or "how to increase revenue from existing customers." For pricing, see pricing-strategy. For upgrade screens, see paywall-upgrade-cro.
mermaid-creator
by arisng
Create Mermaid diagrams (activity, deployment, sequence, architecture) from text descriptions or source code. Use when asked to "create a diagram", "generate mermaid", "document architecture", "code to diagram", "create design doc", or "convert code to diagram". Supports hierarchical on-demand guide loading, Unicode semantic symbols, and Python utilities for diagram extraction and image conversion.
prefactor-skill-selector
by prefactordev
Use when choosing which Prefactor SDK skill to load for agent instrumentation or for building a custom provider integration on top of @prefactor/core.
skill-creator
by kjgarza
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.
pr
by cblecker
Enhanced pull request creation with fork detection, template discovery and proper base branch targeting
planning-with-files
by kjgarza
Transforms workflow to use Manus-style persistent markdown files for planning, progress tracking, and knowledge storage. Use when starting complex tasks, multi-step projects, research tasks, or when the user mentions planning, organizing work, tracking progress, or wants structured output.
cardiology-content-repurposer
by drshailesh88
"Transform long-form cardiology content (YouTube transcripts, newsletters, PDFs, knowledge bases) into high-quality thought leadership content across multiple formats. Use when the user wants to repurpose medical/cardiology content into: (1) Short newspaper articles (Inshorts style), (2) Atomic essays, (3) Tweets, (4) Twitter threads, or (5) Medium-style blogs. Maintains authentic interventional cardiologist voice with clinical authority, uses 4A framework, targets specific patient archetypes, and leverages PubMed for evidence-based citations when needed."
materialize-docs
by MaterializeInc
Materialize documentation for SQL syntax, data ingestion, concepts, and best practices. Use when users ask about Materialize queries, sources, sinks, views, or clusters.