Skills
96,981 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Unified enforcement of the EliteForge Git governance specification, covering branching model, commit messages, MR process, release and hotfix strategy. Use when the user mentions Git conventions, branch naming, rebase/merge choices, MR submission process, squash requirements, commit message validation, release merging, hotfix naming, or conflict avoidance. Trigger threshold: use this skill only when the user explicitly states that the current project follows the "EliteForge specification".
General-purpose technical design document synthesis skill: scans documents and diagrams in the current working directory (Markdown, PlantUML/Mermaid, drawio, images, etc.), distills system goals, module boundaries, core flows, sequences, and states, and outputs a structured technical design document. Use when the user mentions "technical design document", "solution review", "summarize a design from existing documents", "aggregate documents and diagrams in a directory", or "complete sequence/state diagrams".
This skill should be used when the user asks to "create notification", "email notification", "send email", "notification script", "email template", "sysevent_email_action", "notify user", "alert", or any ServiceNow email and notification development.
Use before any implementation start — auto-detects and fixes git state issues (branch, dirty files, remote sync) with one confirmation per fix. Trigger on "start implementation", "implement this plan", "start coding", "execute plan", "開始實作", "執行計劃", or any signal that coding is about to begin.
Detects duplicate boilerplate, copy-paste tests, and structural maintainability issues across .NET test suites. Use when the user asks to reduce repetition, consolidate similar test methods, convert copy-paste tests to data-driven parameterized tests, suggest a better test structure, or identify refactoring opportunities. Identifies repeated construction, assertion patterns, copy-paste methods convertible to DataRow/Theory/TestCase, redundant setup/teardown, and shared infrastructure. Produces an analysis report with concrete before/after suggestions. Works with MSTest, xUnit, NUnit, and TUnit. DO NOT USE FOR: writing new tests (use writing-mstest-tests), reviewing test quality or anti-patterns (use test-anti-patterns), or deep mock auditing (use exp-mock-usage-analysis).
Find dead code using parallel subagent analysis and optional CLI tools, treating code only referenced from tests as dead. Use when the user asks to "find dead code", "find unused code", "find unused exports", "find unreferenced functions", "clean up dead code", or "what code is unused". Analysis-only — does not modify or delete code.
Guide for recovering lost Git commits, resolving detached HEAD states, and fixing common Git repository issues. This skill should be used when users need help recovering from Git mistakes such as lost commits, detached HEAD situations, accidental resets, or when commits appear to be missing from branches.
The complete build-to-production pipeline for Ethereum dApps. Fork mode setup, IPFS deployment, Vercel config, ENS subdomain setup, and the full production checklist. Built around Scaffold-ETH 2 but applicable to any Ethereum frontend project. Use when deploying any dApp to production.
Wield Google's Gemini CLI as a powerful auxiliary tool for code generation, review, analysis, and web research. Use when tasks benefit from a second AI perspective, current web information via Google Search, codebase architecture analysis, or parallel code generation. Also use when user explicitly requests Gemini operations.
Use Google Gemini CLI to answer questions about code, analyze files, or perform codebase exploration. Invoke this skill when the user asks to use Gemini, wants a second opinion from another AI, or wants to compare Claude's answer with Gemini's response.
Gin Go web framework. Covers routing, middleware, binding, validation, and rendering. Use for fast, minimalist Go APIs. USE WHEN: user mentions "gin", "gin-gonic", "go web framework", "go rest api", asks about "gin middleware", "gin binding", "gin validation", "gin router", "fast go api", "gin context" DO NOT USE FOR: Echo projects - use `echo` instead, Fiber projects - use `fiber` instead, Chi projects - use `chi` instead, non-Go backends
Interact with the GitHub API as the joelclawgithub[bot] app. Use when creating PRs, pushing commits, managing issues, checking CI status, listing repos, or any GitHub API operation. Triggers on "create a PR", "push to GitHub", "open an issue", "check CI", "list repos", "merge PR", "GitHub API", or any task requiring programmatic GitHub access. All actions appear as joelclawgithub[bot], not as @joelhooks.
Comprehensive codebase review and parallel agent-based remediation skill. Use PROACTIVELY when agent needs to perform full codebase audit, generate master findings report with quantified metrics, and execute remediation using parallel goodvibes background agents (max 6 concurrent, one task per agent with fresh context). Triggers on: codebase review, code audit, full project analysis, quality assessment, technical debt analysis, parallel remediation, bulk fixes.
Writes and executes JavaScript-based shell scripts using Google's zx library. Use when writing shell scripts, automation, build tools, file processing, CLI tools, deployment scripts, data pipelines, or batch operations. Also covers piping, streams, parallel execution, retries, cross-platform scripting, built-in fs utilities, and minimist argument parsing.
Use when building applications that programmatically interact with the Google Play Developer API using GPC's TypeScript SDK packages. Make sure to use this skill whenever the user mentions @gpc-cli/api, @gpc-cli/auth, PlayApiClient, createApiClient, resolveAuth, listReports, downloadStatsReport, downloadFinancialReport, STORAGE_READ_ONLY_SCOPE, Google Play API client, TypeScript SDK, programmatic access, API client, HTTP client, rate limiter, pagination, edit lifecycle in code, Node.js Google Play, server-side Play Store, backend integration — even if they don't explicitly say 'SDK.' Also trigger when someone wants to build a backend service, custom dashboard, automation script, or any TypeScript/JavaScript application that interacts with Google Play programmatically rather than through the CLI. For CLI usage, see other gpc-* skills. For building plugins, see gpc-plugin-development.
World logic design tool for GraphOS. Design World/Context/Variant/System/Event/EventSystem graph models for any game or app, focusing on domain logic, lifecycle systems, bootstrap events, and event-driven context initialization. Depends on graph-management for graph read/apply APIs and graph-world-ts for TypeScript implementation work.
Q&A session that challenges your plan against the existing domain model, sharpens terminology, and updates docs inline (CONTEXT.md, ADR) as decisions are made. Use when the user wants to stress-test a plan against the project's language and recorded decisions.
Guidance for setting up HuggingFace model inference services with Flask APIs. This skill applies when downloading HuggingFace models, creating inference endpoints, or building ML model serving APIs. Use for tasks involving transformers library, model caching, and REST API creation for ML models.
Use for scientific AI/ML discovery and implementation across biology, chemistry, physics, astronomy, climate, genomics, materials science, medicine, ecology, engineering, mathematics, drug discovery, protein design, weather modeling, single-cell analysis, PDE solving, and related research domains. Helps find and use curated Hugging Science and Hugging Face resources, including datasets via `datasets`, models via `transformers` or the HF Inference API, Spaces via `gradio_client`, and blog posts for methodology. Trigger when the user asks for scientific datasets/models, fine-tuning data, scientific ML benchmarks, domain ML tools, or AI tools for research.
Generates human-like git commit messages based on staged or unstaged changes. Reads git diff, analyzes what changed, and outputs 3 natural commit message options that sound like they were written by a developer — not AI. This skill should be used when the user wants a commit message, asks "what should I write for commit", "generate commit message", "human like commit", or just asks for help committing. NOT for changelogs, release notes, or PR descriptions — it writes commit subjects only.
Handle Hotwire form workflows: form submission lifecycle, inline editing, validation errors, typeahead/autocomplete, modal forms, and external form controls. Prefer this skill when the core problem is correctness and UX of form interaction. Use hwc-navigation-content for pagination/tabs/filter navigation, hwc-realtime-streaming for WebSocket/Turbo Stream broadcasting, hwc-media-content for image/video/audio behavior, hwc-ux-feedback for generic loading/transition polish, and hwc-stimulus-fundamentals for framework-level Stimulus APIs not tied to forms.
Handle media-heavy Hotwire features: image/video/audio uploads, previews, playback controls, progress tracking, and third-party media integrations (for example WaveSurfer, Swiper, Picture-in-Picture, Blurhash). Prefer this skill when the core problem is media rendering, playback state, or media library integration. Use hwc-realtime-streaming for server-pushed Turbo Stream updates, hwc-navigation-content for non-media pagination/tab/lazy-navigation flows, hwc-forms-validation for form validation and inline-edit behavior, hwc-ux-feedback for generic loading/transition patterns, and hwc-stimulus-fundamentals for Stimulus primitives not specific to media.
Build Hotwire navigation and content-discovery flows: Turbo Frame pagination, tabbed navigation, lazy loading, faceted filtering/search, cache lifecycle, scroll restoration, and visit/render control. Prefer this skill when the core problem is request/response navigation state and browser history behavior. Use hwc-forms-validation for form validation and inline edit flows, hwc-realtime-streaming for WebSocket/Turbo Stream push updates, hwc-media-content for image/video/audio features, hwc-ux-feedback for generic loading/progress/transition polish, and hwc-stimulus-fundamentals for Stimulus APIs not centered on navigation.
Plan and review localization changes across app, docs, and web surfaces. Use for string extraction, locale routing, plural/date/number formatting, RTL, pseudo-locale QA, message catalogs, and translation readiness. NOT for generic copy editing, frontend visual design, SEO, or JavaScript conventions.
Scandit ID Capture (`IdCapture`) in Flutter projects — scanning passports, driver's licenses, ID cards, residence permits, visas via MRZ, VIZ, barcode, or mobile documents. Use for integration, accepted-document and scanner configuration, captured-field result handling, anonymization, add-on capabilities (voided-ID detection, European driving-license back decoding, AAMVA barcode verification), and SDK version migration.
Turn rough ideas into structured, validated idea documents through collaborative dialogue. Explores context, asks clarifying questions one at a time, proposes alternative approaches with feasibility evaluation, and produces documents ready for requirements definition. Use when: ideation, brainstorm, new idea, explore an idea, I want to build, what if we, let's think about, propose approaches, evaluate this idea, idea document, アイデア出し, 案出し, ブレスト, アイデアを整理, 検討したい.
Software development engine for coding. A production-grade skills system for web apps and mobile architecture, APIs, databases, web, mobile, AI, security, UX, SaaS, and ERP engineering. Encodes reusable engineering judgment through layered baseline and specialist skills to help generate secure, scalable, maintainable, high-performance software systems
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.