Skills
101,174 packaged capabilities and playbooks for agents. Install any of them with one command.
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Safely track trending topics, research keywords, and analyze competitor content, then turn the findings into original topic ideas and evidence packs. Use when users ask to find hot topics, track trends, analyze viral content or competitor accounts, break down titles or openings, compare content structures, identify audience needs in comments, assess timing windows, compare the popularity gap of a topic between overseas and domestic platforms, or find relevant Reddit subreddits and discussion threads for a product. Conduct public-information research and read-only collection only; do not interact or publish automatically, or scrape competitors using a primary account login session.
Migrate Dart/Flutter SDK to Sentry span streaming (span-first trace lifecycle). Use when asked to enable span streaming, migrate to span streaming, use traceLifecycle stream, use Sentry.startSpan, or switch from transaction-based to streamed span delivery in a Dart or Flutter project
Security-focused source code review and SAST. Scans for vulnerabilities (OWASP Top 10, CWE Top 25), CVEs in third-party dependencies/packages, hardcoded secrets, malicious code, and insecure patterns. Use when given source code, a repo path, or asked to "audit", "scan", "review" code security, or "check dependencies for CVEs".
Implementar e revisar aplicações Next.js com App Router, Server e Client Components, data fetching, cache, mutations, routing, metadata, segurança e deploy. Use quando houver dependência next ou next.config e a tarefa tocar rota, layout, Server Action, cache ou runtime; use também para decidir a fronteira server/client; não use para lógica de estado/efeito React independente de framework — aí use a skill React; confirme sempre o router (App ou Pages) e a versão antes de recomendar, pois cache e defaults mudam entre gerações.
Expert guidance for building Stimulus controllers in Rails applications. Use when creating JavaScript behaviors, writing data-controller/data-action/data-target attributes, building interactive UI components, or working with Hotwire Stimulus. Covers controller creation, targets, values, actions, classes, outlets, lifecycle callbacks, progressive enhancement, and common patterns like clipboard, flash, modal, toggle, and form validation.
Develop the Stitch SDK. Covers the generation pipeline, dual modality (agent vs SDK), error handling, and Traffic Light (Red-Green-Yellow) implementation workflow. Use when adding features, fixing bugs, or understanding the architecture.
Japanese (and other non-Hollywood) screenwriting methods (日本编剧方法/原创剧本实战) — distilled from ten Japanese directors and writers in ゼロからの脚本術; Kosawa Ryota (three acts as 起承转合, speed by jumping), Uchida Kenji (beautiful structure, time-axis tricks), Miki Satoshi (small-material notebook, theme emerges later), Sono Sion, Omiya Ellie (dialogue from inner monologue), Kakei Masaya ("if + moreover"), Fukuda Yuichi (character = actor + flaw, audience as tsukkomi), Yokohama Satoko, Takahashi Izumi ("pain"), Yukisada Isao (situation-born originals); plus Arai Haruhiko (IP adaptation, "write what you're ashamed of"). Neighbours; sw-korean-french-screenwriting, ozu-screenplay-style. Use when writing an original Japanese-style script or TV drama, working from small material and fragments, choosing between structure-first and character-first methods, building a Japanese 企画書, designing comedy tsukkomi systems, or when Hollywood models feel wrong for a quiet, daily-life, non-goal-driven story.
Implements Syncfusion .NET MAUI Color Picker (SfColorPicker). Use when implementing color picker functionality, color selection UI, palette mode, spectrum mode, or alpha slider configuration in .NET MAUI applications. Covers inline rendering, popup customization, color changed events, localization, and liquid glass effect.
Implements Syncfusion® .NET MAUI Linear Gauge (SfLinearGauge) for data visualization with scales, pointers, and ranges. Use when creating linear gauges, displaying measurements on linear scales, showing progress indicators, or building thermometer-style visualizations. Covers gauge pointer configuration, bar pointers or shape markers, draggable gauge pointers, and animated gauge transitions.
Implements Syncfusion .NET MAUI Radial Menu (SfRadialMenu) - a hierarchical circular menu optimized for touch. Use when working with radial menus, circular menus, context menus, touch-optimized menus, or hierarchical circular navigation. Covers floating menus, drag-enabled menus, nested circular menus, and custom segmented layouts in .NET MAUI applications.
Implements the Syncfusion .NET MAUI Range Selector (SfRangeSelector) component. Use when working with range selection with embedded charts, numeric range input, RangeStart/RangeEnd, track customization, or thumb styling in .NET MAUI. Covers tooltip configuration, label formatting, ticks/dividers, selection modes, events, and embedding SfCartesianChart inside a range control.
Implements Syncfusion .NET MAUI Rotator (SfRotator) control for displaying image carousels, slideshows, or rotating content. Use this for image galleries, product showcases, testimonial sliders, banner rotators, or scenarios requiring automatic or manual navigation through visual content.
Implements Syncfusion .NET MAUI SignaturePad (SfSignaturePad) for capturing digital signatures with realistic handwritten appearance. Use when working with signature capture, digital signatures, electronic signatures, or signing documents in .NET MAUI applications. Covers stroke customization, saving signatures as images, signature point data retrieval, and signature validation.
Implements Syncfusion .NET MAUI AI-Powered Scheduler (SfSmartScheduler). Use when implementing natural language appointment scheduling, AI-powered scheduling, AI-powered control handling (date navigation, view switching), resource-aware booking, or conflict detection in MAUI apps. Covers AI scheduling, natural language CRUD operations, AI navigation, resource booking, and appointment summarization.
Implements Syncfusion® .NET MAUI StepProgressBar (SfStepProgressBar) control. Use when implementing step progress visualization, multi-step process tracking, or sequential progress indication. This skill covers step appearance customization, step states (completed/in-progress/not-started), orientation options, tooltips, and accessibility for order tracking, registration forms, or checkout processes.
Implements Syncfusion .NET MAUI Toolbar (SfToolbar) for navigation bars and command bars. Use when working with toolbars, toolbar items, navigation bars, toolbar buttons, or action toolbars in .NET MAUI applications. This skill covers toolbar item configuration, icons, text, overflow behavior, orientation, selection modes, and toolbar customization.
Deep need-clarification skill. Use only when the user explicitly invokes $task-clarifier. Once activated, keep asking until all three goals are met: the user fully understands their own needs, the AI fully understands the user's needs, and the user confirms the AI's understanding is correct. Do not intervene in task execution unless explicitly invoked.
Receive and respond to inbound messages and track outbound delivery status via Twilio webhooks across SMS, MMS, WhatsApp, and RCS. Covers webhook request parameters, replying with TwiML, validating webhook signatures for security, and handling status callbacks. Use this skill whenever an agent needs to handle incoming messages on any channel or track outbound message delivery in real time.
Refresh an existing Ultrademo demo video after the app changes. Use when the user wants to rerun, update, refresh, or regenerate a demo video that already has a project folder (for example, after a UI or feature update, or to capture current footage). Finds the project, recaptures, and rerenders; unchanged narration stays cached.
Use this skill to perform actions inside an Unreal Engine project via a live-editor MCP connection. Trigger when the user wants to change, query, or run something in their Unreal Engine project, not for conceptual or docs questions. Concrete triggers: spawn/move/duplicate/transform actors in a level, open a `.uproject`, add things around a PlayerStart, create or edit a Blueprint/Widget/Material/Niagara/Control Rig/Sequencer/Behavior Tree/GAS ability, read or write properties on actors (e.g. `bIsLocked` on `BP_DoorActor`), Live Coding recompile after editing C++ (`AActor`, `UMyComponent::Method`, `UPROPERTY`), or modify Static/Skeletal Mesh assets. Treat as Unreal context even without the word "Unreal": asset prefixes `BP_`, `WBP_`, `M_`, `MI_`, `NS_`, `CR_`, `SK_`, `SM_`, `ABP_`; UE C++ types/macros; `.uproject`; Content Browser; Outliner; PlayerStart; "in my game" plus UE signals. Skip for: pure conceptual/docs questions, Unity, Godot, or unrelated uses of "blueprint"/"sequencer"/"widget".
Use this skill for processing and analyzing large tabular datasets (billions of rows) that exceed available RAM. Vaex excels at out-of-core DataFrame operations, lazy evaluation, fast aggregations, efficient visualization of big data, and machine learning on large datasets. Apply when users need to work with large CSV/HDF5/Arrow/Parquet files, perform fast statistics on massive datasets, create visualizations of big data, or build ML pipelines that don't fit in memory.
This skill should be used whenever a plan for non-trivial work is being produced, presented, or proposed (a feature, design, refactor, migration, or any multi-step task), including in plan mode and together with whatever planning skill produced the plan. It is the default way to deliver a plan: instead of a wall of text, it renders the plan as MDX to a scannable, self-contained HTML page (diagrams, phases, file-change maps, comparisons) via the `vplan` CLI. It applies when the user says "plan this", "what's the approach", "how should we approach X", "show me the plan", "make a visual plan", "render this plan", or asks for a plan with diagrams/charts, and when they want to review, approve, sign off on, or give feedback on a plan. Skip only for a trivial one-step change or when the user explicitly asks for plain prose
Build voice-enabled AI applications with speech recognition, text-to-speech, and voice-based interactions. Supports multiple voice providers and real-time processing. Use when creating voice assistants, voice-controlled applications, audio interfaces, or hands-free AI systems.
Scale your brand voice across multiple languages using AI voice synthesis, maintaining consistent character and quality for global content. Use when: Expanding video content to new language markets; Creating multilingual courses or training; Localizing ads and marketing videos; Dubbing existing content for international audiences; Building consistent global brand voice
Analyze YouTube channels for outlier videos and packaging patterns. Identifies what's working (2x+ average views) across any set of channels. Use when asked for YouTube competitive analysis, viral video patterns, or packaging/title inspiration.
Use when you need to add or review Mongock MongoDB data migrations in a Spring Boot application — including Maven coordinates, Spring Data MongoDB drivers, migration scan packages, @ChangeUnit classes, lock/transaction settings, and optional policy-approved MongoDB integration verification. This should trigger for requests such as Add Mongock migrations in Spring Boot; Review Spring MongoDB data migrations; Configure Mongock change units for Spring Data MongoDB; Create Mongock change units for Spring Boot MongoDB; Review Mongock migration ordering in a Spring service. Part of Plinth Toolkit
Use when you need to create a new Maven-based Quarkus 3.x project using SDKMAN-managed Java and Quarkus CLI tooling. This should trigger for requests such as Create a Quarkus Maven project; Bootstrap Quarkus project with SDKMAN; Generate a new Quarkus service; Create Quarkus 3 Maven project; Scaffold Quarkus service with Java 25. Part of Plinth Toolkit
Use when reviewing, designing, or modifying Java enterprise systems from a maintainer-authored or maintainer-sanitized NIS2 engineering evidence inventory. Supports essential or important entities, critical-sector services, managed service providers, supply-chain dependencies, and cybersecurity incident escalation obligations without ingesting raw code, logs, runbooks, tickets, provider documents, or other operational free text. Part of Plinth Toolkit
Use when reviewing, designing, or modifying Java enterprise systems that may support intermediary services, hosting services, online platforms, marketplaces, content moderation, recommender systems, advertising delivery, complaint workflows, transparency reporting, or systemic-risk evidence under the EU Digital Services Act. This should trigger for requests such as Review a Java online platform for DSA controls; Design notice-and-action or appeal workflows; Add recommender, ad transparency, moderation, audit, researcher access, or privacy-safe observability evidence; Assess online-platform transparency controls before production release. Part of Plinth Toolkit
Reference guide for the Atlassian CLI (acli), a command-line tool for interacting with Jira Cloud and administering Atlassian organizations. Use when the user wants to perform Jira operations (create, edit, search, or transition work items; manage projects, boards, sprints, filters, and dashboards), administer Atlassian organizations (manage users and authentication), or automate Atlassian workflows from the terminal. Covers all acli commands, including: jira workitem (create, edit, search, assign, transition, comment, clone, link, archive), jira project (create, list, update, archive), jira board/sprint, jira filter/dashboard, admin user management, and rovodev (Rovo Dev AI agent). Requires an authenticated acli binary already installed on the system.
Expert guidance for implementing real-time features with Action Cable in Rails applications. Use when working with websockets, channels, subscriptions, broadcasting, live updates, push notifications, or Solid Cable. Covers connection authentication, channel creation, streaming, client-side JS, testing, and deployment. Clarifies when to use Action Cable directly vs Turbo Streams broadcasting.
Expert guidance for Action Mailer in Rails applications. Use when creating mailers, sending emails, building email templates, configuring delivery, writing mailer previews, or working with transactional email. Triggers on "mailer", "email", "send email", "action mailer", "mail template", "deliver_later", "email notification", "transactional email", "mailer preview", "welcome email", "notification email".
Expert guidance for creating, queuing, and managing background jobs with Active Job and Solid Queue in Rails 8+. Use when creating background jobs, queuing work with perform_later, configuring Solid Queue, handling retries and errors (retry_on, discard_on), sending emails asynchronously (deliver_later), testing jobs, or managing queue priorities. Covers job creation, enqueuing, callbacks, serialization (GlobalID), bulk enqueuing, concurrency controls, recurring tasks, and job continuations.
Build plain Ruby objects that integrate with Rails forms, validations, serialization, and Action Pack — without a database. Use when building form objects, search forms, API wrappers, configuration objects, virtual models, or any PORO that needs model-like behavior. Triggers on "active model", "form object", "plain Ruby object", "non-database model", "ActiveModel", "PORO", "service object validation", "virtual model", "tableless model", "search form", "ActiveModel::API", "ActiveModel::Model".
Expert guidance for writing efficient, correct Active Record queries in Rails 8.1. Use when writing queries, finding records, building scopes, fixing N+1 queries, using where clauses, includes, joins, eager loading, filtering, searching, plucking data, selecting records, or optimizing database queries. Covers where, find, scopes, includes vs preload vs eager_load, joins, pluck, select, calculations, batching, and query anti-patterns.
Expert guidance for Active Record validations in Rails 8.1. Use when adding validations, writing "validates", "validate", working with "errors", "valid?", "invalid?", building custom validators, handling uniqueness, presence, format validation, numericality, conditional validations, strict validations, or normalizations. Covers model-layer data integrity, DB constraint pairing, error handling, and common pitfalls.
Vercel AI Elements for workflow UI components. Use when building chat interfaces, displaying tool execution, showing reasoning/thinking, or creating job queues. Triggers on ai-elements, Queue, Confirmation, Tool, Reasoning, Shimmer, Loader, Message, Conversation, PromptInput.
Use when planning a multi-shot AI video (TikTok Reel, Instagram Ad, YouTube Shorts, product explainer) where the target duration exceeds what a single AI generation can produce (>15s), and you need a coordinated shot list with visually consistent prompts for each segment
Provides MaxCompute SQL intelligent generation capabilities for AI agents, covering text2sql conversion principles, dialect syntax differences (DQL/DDL/DML), common query pattern templates (Top N, PIVOT, window functions, etc.), and ODPS error code diagnostics. Use when generating, debugging, or migrating MaxCompute / ODPS SQL.
Audio generation skill—jingles, beds, voiceover, and sound effects. Routes music requests to Suno V5 / Udio / Lyria, speech to MiniMax TTS / FishAudio / ElevenLabs V3, and SFX to ElevenLabs SFX or AudioCraft. Output is one MP3/WAV file saved to the project folder.
Expert knowledge for Azure Backup development, including troubleshooting, best practices, decision making, architecture and design patterns, limits and quotas, security, configuration, integrations and coding patterns, and deployment. Use when protecting Azure VMs/AKS, SQL/SAP HANA/PostgreSQL, files/blobs/disks, or automating via REST/CLI/PowerShell, and for other Azure Backup development tasks. Not for Azure Site Recovery (use azure-site-recovery), Azure Virtual Machines (use azure-virtual-machines), Azure Virtual Network (use azure-virtual-network), or Azure Virtual Machine Scale Sets (use azure-vm-scalesets)
Extracts resources and JavaScript from any installed Electron app (`.asar` bundle), restoring original sources from `.js.map` files when available or formatting minified code with Prettier otherwise. Use when user wants to "extract Electron app", "decompile Electron", "get the source code of <app>", "inspect app.asar", "看 Electron 应用源码", "提取 .asar", or asks how a desktop Electron app is built. Skips `node_modules` and supports both macOS and Windows.
This skill should be used when the user asks to "add a transaction", "create a beancount entry", "record an expense", "balance my accounts", "query my finances", "check account balances", "categorize spending", "write beancount", "edit .beancount files", "run a BQL query", "reconcile accounts", or mentions beancount, double-entry accounting, or ledger files. Provides comprehensive beancount syntax, directives, and query language expertise.
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.