Skills
101,174 packaged capabilities and playbooks for agents. Install any of them with one command.
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Background context for invoice-system input tax credit rules (仕入税額控除) in the shinkoku tax filing plugin. Contains eligibility requirements, the 6 permanent exceptions (帳簿のみ保存の恒久特例), transitional measures for purchases from tax-exempt businesses, and storage requirements. This skill is not user-invocable — Claude loads it automatically when responding to input tax credit questions under the invoice system.
A knowledge-comic creation tool that supports multiple art styles and tones. Create original educational comics with detailed storyboard layouts and sequential image generation. Use when the user asks to create a “knowledge comic,” “educational comic,” “biographical comic,” or “tutorial comic.”
Apply shared coding standards when writing, reviewing, or refactoring TypeScript in apps, services, workers, and shared packages. Use before editing TypeScript functions, types, exports, error handling, documentation, package dependencies, or React components and hooks. Includes conditional React and Next.js rules; backend repositories do not require either framework.
Convert a source-backed A-share research view into valuation scenarios and an investment plan. Use this skill after strategy, business, financial, industry, and risk work is complete. Choose methods that fit the business model and explain assumptions with accessible source links.
A content creation tool for social media creators that helps write high-quality articles and headlines, and provides guidance for generating accompanying and cover images. Supports the styles of WeChat Official Accounts, Xiaohongshu, and Douyin. Creates in depth based on 11 content insight dimensions, including core ideas, persuasion strategies, emotional triggers, memorable quotes, emotional arcs, and engagement hooks. Activates when users request content creation, such as writing an article, creating a WeChat Official Account article, a Xiaohongshu post, Douyin copy, or coming up with a headline, or mention social media content or viral copy. Also applies when users provide a topic or source material and ask for complete content.
Use when the user has audio or video and wants a timestamped transcript (SRT) in the source language. Routes by source language — Chinese defaults to Volcano (豆包) ASR; other languages (Spanish, English, Portuguese, French, Italian, Japanese, Korean, etc.) use OpenAI Whisper API with word-level timestamps and self-assembled cues. Outputs SRT with punctuation-bounded cues capped for on-screen reading. Triggers — "转写", "转成字幕", "做 SRT", "transcribe", "make subtitles", "speech to text", "出字幕".
Design and product-design skills derived from seminal books, selected from the larger Wondel.ai collection: Refactoring UI, The Design of Everyday Things, Microinteractions, Lean UX, Inspired (Marty Cagan), Jobs To Be Done, the Hook Model, and the Design Sprint. Installed as individual skills.
WordPress performance code review and optimization analysis. Use when reviewing WordPress PHP code for performance issues, auditing themes/plugins for scalability, optimizing WP_Query, analyzing caching strategies, checking code before launch, detecting anti-patterns, or when the user mentions "performance review", "optimization audit", "slow WordPress", "slow queries", "high-traffic", "scale WordPress", "code review", "timeout", "500 error", "out of memory", or "site won't load". Detects anti-patterns in database queries, hooks, object caching, AJAX, and template loading.
AI SEO Tracker setup skill. Use when the user wants AI search visibility, ChatGPT or Perplexity rankings, citation tracking, or MCP connection help. Trigger on "track AI mentions", "AI SEO", "how does ChatGPT rank us", or when the user asks you to fetch or run https://aiseotracker.com/SKILL.md. Fetch this file before quoting tools, pricing, or workflow from memory.
Analyze the most expensive users in AI observability and explain why they cost so much. Use when the user asks about top spenders, expensive users, per-user LLM cost, user-level cost drivers, or patterns behind high AI observability spend.
Write, audit, or improve an iOS App Store listing — app name, subtitle, keyword field, screenshots, app icon, preview video, creative assets, tags, ratings strategy, localization, and featuring nominations. Use when creating or reviewing App Store metadata, doing keyword research, planning a metadata update, or when the user mentions ASO, App Store Optimization, app store listing, keywords, subtitle, screenshot captions, preview video, app icon, Liquid Glass, creative assets, product page header, search results creative, Asset Library, featuring, ratings prompt, Apple Ads, screenshot rejection, Guideline 2.3.3, screenshot sizes, or iPhone Duo.
Writes Airflow task logic in Java, Kotlin, or any JVM language using the Airflow Java SDK. Use when implementing Airflow tasks in Java/JVM or asking about `@Builder.Dag`/`@Builder.Task`/`@Builder.XCom`, the `Task`/`BundleBuilder` interfaces, reading connections/variables/XComs from Java, JSON-to-Java type mapping, or logging from Java tasks. Covers the Java-specific native API; the shared Python-stub pattern and conceptual model are in authoring-language-sdk-tasks. For building or shipping the bundle, see deploying-java-sdk-bundles; for coordinator config, see configuring-airflow-language-sdks.
Expert knowledge for Azure Load Balancer development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when configuring backend pools/rules, SNAT/outbound, dual-stack IPv4/IPv6, health probes, or LB metrics/APIs, and other Azure Load Balancer related development tasks. Not for Azure Application Gateway (use azure-application-gateway), Azure Front Door (use azure-front-door), Azure Traffic Manager (use azure-traffic-manager), Azure Virtual Network (use azure-virtual-network).
Expert guidance for writing, refactoring, and structuring CSS using BEM (Block Element Modifier) methodology. Provides proper CSS class naming conventions, component structure, and Optics design system integration for maintainable, scalable stylesheets.
Builds command-line interfaces for Python libraries using Click or Typer. Includes command groups, argument handling, progress bars, shell completion, and CLI testing with CliRunner. Use when adding CLI functionality to a library or building standalone command-line tools.
Start here for any Canvas page-spec task. Use for create, modify, refactor, review, migrate, or validate work on page JSON files that sync with Canvas and render in Workbench. Establishes the canonical Canvas page-spec contract, including placement, structure, format constraints, and validation.
Automatically creates user-facing changelogs from git commits by analyzing history, categorizing changes, and turning technical commits into clear, easy-to-understand release notes. Turns hours of manual writing into minutes of automated generation. Use when the user wants to generate a changelog, release notes, or a summary of changes from git history, or mentions “changelog” / “release notes”.
Provider-independent cinematic trailer production for AI agents creating movie-style trailers, teaser trailers, launch trailers, game trailers, documentary trailers, series promos, and high-impact generated-media previews. Use for trailer strategy, structure, shot planning, voiceover/title-card copy, music and sound-design direction, generated-video prompt translation, edit pacing, platform/runtime choices, delivery handoff, rights/claims caveats, and trailer QA.
Optimize Claude Code permissions by finding safe Bash commands from session history and auto-applying them to settings.json. Can run from any coding agent but targets Claude Code specifically. Use when experiencing permission fatigue, too many permission prompts, wanting to optimize permissions, or needing to set up allowlists. Triggers on "optimize permissions", "reduce permission prompts", "allowlist commands", "too many permission prompts", "permission fatigue", "permission setup", or complaints about clicking approve too often.
Use when validating an App Builder app before submitting to Adobe Exchange, or when the user mentions Adobe Commerce app compliance, extension review, marketplace submission, or Adobe Exchange listing. Checks security requirements, project structure, documentation completeness, and dependency health; reports MUST-have blockers and NICE-to-have recommendations and walks through each finding interactively.
Synthesize user feedback from multiple channels and identify patterns to inform product decisions. Use when analyzing feedback, prioritizing feature requests, conducting NPS surveys, or understanding user sentiment. Covers feedback collection, categorization, prioritization frameworks, and closing the feedback loop
Use when a Cypress end-to-end test has already run and failed and the user wants the root cause and a concrete fix. Trigger on a failing Cypress spec, Timed-out-retrying command, unresolved selector, cy.intercept alias or request race, suite-breaking hook, retry-only flake, hydration or timing race, or a passes-locally-but-fails-in-CI split. Also use for explicitly extracting errors or counts from an existing Cypress report without diagnosis, including zero-failure reports. Accept mochawesome or JUnit reports, errors and stacks, screenshots, videos, and CI artifacts such as a GitHub run id. Distinguish product regressions from brittle tests. Do not use for writing new Cypress tests, reviewing a passing suite, non-Cypress failures (Playwright, Jest, Vitest), or debugging an app/backend without a failing Cypress test.
Use when the user wants to build a Python Kafka producer or consumer, add Schema Registry to existing Python code, migrate from raw JSON to schema-backed serialization, or scaffold a confluent-kafka-python project for Confluent Cloud, local Docker, or WarpStream. Also use when the user wants to optimize Python Kafka client configuration for WarpStream.
Manage documents, folders, and content in DingTalk Cloud Docs. Use when users want to create documents or files such as spreadsheets, mind maps, whiteboards, presentations, or multidimensional tables; search documents; read or write document content; create folders to organize documents; traverse folder structures; or precisely edit document block elements. Also use when users mention keywords such as cloud docs, online docs, DingTalk docs, or 钉文档. Do not trigger when users need to manage schedules, send messages, or handle approval workflows.
Review Django and Python changes for clarity, consistency, maintainability, ORM or DRF anti-patterns, and project conventions while preserving behavior. Use after Django code changes or when the user explicitly requests review. Report findings by default; apply refinements only when the user expresses explicit edit intent or the host has already authorized edits.
Use Fabric CLI for Power BI operations, including semantic models, reports, DAX queries, refreshes, and gateways. Activate when users work with Power BI items, need to refresh datasets, execute DAX, manage reports, or troubleshoot refresh failures.
Navigate difficult conversations and deliver constructive feedback using structured frameworks. Covers the Preparation-Delivery-Follow-up model and Situation-Behavior-Impact (SBI) feedback technique. Use when preparing for difficult conversations, giving feedback, or managing conflicts.
Compare GEO scores across 2–3 competing websites side by side — identify where competitors lead and where you should focus optimization efforts. Use when the user asks to compare sites for AI visibility, benchmark against competitors, or mentions competitor analysis for AI search.
Expert-level Go development with Go 1.22+ features, concurrency, standard library, and production-grade best practices. Use when the user mentions concurrency, microservices, or backend, or when the task involves idiomatic Go, goroutines and channels, context-based cancellation, or writing an HTTP server.
Security review of Infrastructure-as-Code (Terraform, Kubernetes, CloudFormation). Use when reviewing IaC files for misconfigurations, overpermissioning, exposed resources, missing encryption, secrets in code, and supply chain risks. Covers CIS benchmarks and cloud security best practices.
Use when you need content from the web — reading a URL, or pulling posts, videos, transcripts or listings from a specific site or platform — before calling WebFetch or curl. Opens blocked/WAF sites automatically. Covers X/Twitter, Reddit, YouTube, GitHub, Mastodon, Medium, Substack, Stack Overflow, Threads, Naver, Coupang, LinkedIn, dcinside, fmkorea, GeekNews, and any platform with bot protection, via yt-dlp (1,858 media sites), Jina Reader, public APIs (HN, Bluesky, arXiv), and a WAF-profile-driven fetch chain (curl_cffi TLS impersonation, mobile URL transforms, Playwright real-Chrome) with auto dependency install. Korean triggers: 레딧/유튜브/네이버 블로그/X/긱뉴스/쿠팡에서 가져와줘, 이 링크 읽어줘, 유튜브 자막 뽑아줘, 트위터/X 못 열어, 사이트 차단됨, 스레드 안 열려, 디시인사이드, 에펨코리아, 요즘IT, 클리앙, 링크드인, 당근마켓. English triggers: read this link, twitter access, reddit blocked, youtube subtitles, github search, arxiv papers, threads, naver blog, coupang, linkedin.
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.