Skills
98,639 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Expert guidance for Rails I18n (internationalization and localization). Use when working with translations, locale files, t() / l() helpers, lazy lookups, pluralization, interpolation, date/time/number formatting, model translations, error message translations, setting locale from URL/header/session, or organizing YAML translation files. Triggers on "i18n", "internationalization", "translation", "locale", "localize", "t()", "translate", "multilingual", "pluralization", "locale file", "YAML translation".
JavaScript/TypeScript SDK for inference.sh - run AI apps, build agents, integrate with all models. Package: @inferencesh/sdk (npm install). Full TypeScript support, streaming, file uploads. Build agents with template or ad-hoc patterns, tool builder API, skills, human approval. Use for: JavaScript integration, TypeScript, Node.js, React, Next.js, frontend apps. Triggers: javascript sdk, typescript sdk, npm install, node.js api, js client, react ai, next.js ai, frontend sdk, @inferencesh/sdk, typescript agent, browser sdk, js integration
Adversarial code review of server-side TypeScript for adherence to the kamae principles (discriminated unions, branded types, Result error handling, boundary validation, PII protection). TRIGGER when: reviewing a pull request, audit, or quality check of TypeScript server-side code involving domain models, repositories, use cases, business logic, or boundary code. SKIP: frontend code review, infrastructure-as-code review, test-only review, code review unrelated to domain logic.
Write, refactor, and review Rails code using layered architecture principles from “Layered Design for Ruby on Rails Applications”. Use when writing or refactoring Rails code—models, controllers, services, jobs, mailers, policies, forms, query objects, presenters, view components, state machines, serializers, or AI/LLM features—to apply correct patterns and avoid layer violations; and when reviewing Rails code, PRs, or diffs for layer violations, fat controllers/models, anemic models, callback misuse, god objects, or specification-test failures. Triggers on “layered design”, “architecture layers”, “abstraction layer”, “specification test”, “layer violation”, “fat controller/model”, “god object”, “anemic model”, “extract service/callback/policy/concern”, “service object”, “form/policy/query/value object”, “presenter”, “view component”, “state machine”, “Active Delivery”, “callback scoring”, “Rails refactor/review”, “Rails patterns/best practices”, “archspec”, or “architecture linter/enforcement”.
Expert guidance for using Lucide icons in Rails applications via the lucide-rails gem. Use when adding icons, choosing icon names, styling SVG icons, making icons accessible, or building icon-based UI patterns (buttons, nav, badges, empty states). Triggers on "lucide", "icon", "lucide-rails", "SVG icon", "icon library", "lucide_icon", "feather icon", "inline SVG", "add an icon", "icon button", "icon name".
Dodo Payments in-app checkout for React Native, Flutter, native iOS, and Android using SFSafariViewController or Chrome Custom Tabs. Use when a mobile app must open a backend-created checkout session, handle deep link or custom URL scheme returns, recover abandoned checkouts, and verify payment server-side before unlocking access
Next.js adapter for embedding emulators directly in a Next.js app via @emulators/adapter-next. Use when the user needs to embed emulators in Next.js, set up same-origin OAuth for Vercel preview deployments, create an emulate catch-all route handler, configure Auth.js/NextAuth with embedded emulators, add persistence to embedded emulators, or wrap next.config with withEmulate. Triggers include "Next.js emulator", "adapter-next", "embedded emulator", "same-origin OAuth", "Vercel preview", "createEmulateHandler", "withEmulate", or any task requiring emulators inside a Next.js app.
Technical architecture role for Phaser 4 mobile 2D games. Use when defining or reviewing module responsibilities, public contracts, state ownership, and dependency direction, or establishing technical baselines for TypeScript, Vite, Capacitor, scenes, assets, saves, platform adaptation, and reproducible builds.
Advanced Regle form validation patterns — collection validation with `$each`, async rules and `$pending`, server/`externalErrors`, `$reset` options, global config with `defineRegleConfig`, discriminated-union variants, cross-component `useScopedRegle`/`useCollectScope`, `mergeRegles`, and object-level `$self`. Use for arrays of fields, async/server validation, scoped or merged forms, i18n messages, or variant forms. For schema libraries see regle-schemas.
Sinch SDK installation and client initialization for Node.js, Python, Java, and .NET. Use when installing a Sinch SDK, initializing SinchClient, setting up SDK credentials, configuring conversation region in SDK, or building a multi-product SDK client. For In-App Calling SDKs, see sinch-in-app-calling.
Investigar questões técnicas em fontes primárias, código, padrões e experimentos, produzindo síntese rastreável. Use quando decisões dependem de APIs atuais, comparação de tecnologias ou fatos incertos; salve pesquisa somente no local autorizado pela spec do projeto consumidor.
Use when a task may benefit from a bounded subagent for implementation, large-codebase discovery at task start, independent review, requested or pre-commit code simplification, or expert work on complex decisions, modeling, automation, or repeated failures. The main agent decides whether to delegate and accepts the result. Do not use for simple questions or short tasks that do not need meaningful review or delegation.
Use when choosing or evaluating a technology (framework, database, library, cloud tool) — injects Tikal Israeli Tech Radar context (adoption ring, quadrant, opinion, Keep/Start alternatives for Stop items) and pairs the selection with ADR capture via /architect-specify; invoked from team-boot's Class Boots catalog (formerly tech-radar-context).
Expert guidance for building modern Rails UIs with Turbo (Drive, Frames, Streams). Use when implementing partial page updates, real-time broadcasts, turbo frames, turbo streams, hotwire patterns, turbo_frame_tag, turbo_stream responses, lazy loading frames, morphing, page refreshes, or any "turbo" related Rails feature. Covers Turbo Drive navigation, Turbo Frames for scoped updates, Turbo Streams for real-time HTML delivery, and Turbo 8 morphing.
Twilio CLI reference for managing Twilio resources from the terminal. Covers installation, credential profiles, phone number provisioning, sending SMS and email, webhook configuration, local development with a tunneling service, debugging with watch and logs, serverless deployment, and plugin ecosystem. Use when the developer asks to "just do it", "set this up", "run a command", mentions "CLI", "command line", or "terminal", or when an AI agent can execute a task directly instead of writing application code.
Enforces the non-happy paths every screen owes the user — loading/empty/error/content resolved in ONE switch over an AsyncValue or sealed view state, never an isLoading+error+data bool triple; a delayed skeleton shaped like the result instead of a spinner that flashes; a refresh that keeps stale content on screen; "nothing yet" distinguished from "nothing matches this filter", each with its own action; error text from a typed Failure code (never e.toString()) plus a retry that invalidates the provider; the surface ladder inline, snackbar, banner, dialog, with a modal earned only by a decision that must resolve now; soft-delete + Undo over a confirmation; showDialog's null dismissal handled as its own outcome; ScaffoldMessenger captured before an await; and announcements for eye-only changes. Use when writing loading, empty, error, or offline UI, calling AsyncValue.when, showDialog, showModalBottomSheet, showSnackBar or showMaterialBanner, or adding a confirmation, Undo, or retry
Declarative UI widgets from JSON for React/Next.js from ui.inference.sh. Render rich interactive UIs from structured agent responses. Capabilities: forms, buttons, cards, layouts, inputs, selects, checkboxes. Use for: agent-generated UIs, dynamic forms, data display, interactive cards. Triggers: widgets, declarative ui, json ui, widget renderer, agent widgets, dynamic ui, form widgets, card widgets, shadcn widgets, structured output ui
Expert guidance for defining and using Active Record associations in Rails. Use when creating associations, defining model relationships, troubleshooting foreign keys, fixing N+1 queries, setting up belongs_to, has_many, has_one, has_many :through, polymorphic associations, self-referential joins, join tables, counter caches, dependent options, inverse_of, eager loading, or any question about how models relate to each other.
Use when an agent speaks MCP, A2A, or a gateway beyond its process: MCP servers or clients, agent cards, MCP Registry, and delegated calls. Triggers: “MCP server” / “MCP-сервер,” “A2A,” “шлюз для агентов.” Not for one server's tool design (agent-harness) or skill construction (make-skill).
Fixes AI content discovery issues. Creates and corrects robots.txt, AI crawler directives, XML sitemaps, llms.txt, Markdown content negotiation, Link headers, Content-Signal lines, AGENTS.md, agent content contracts, soft-404 handling, DNS-AID records and pricing pages so AI systems can find, crawl and read a website. Use when asked to "fix robots.txt", "add llms.txt", "create a sitemap", "allow AI crawlers", "serve markdown to agents", "add AGENTS.md", "fix soft 404", "improve AI content discovery score", or any robots.txt, sitemap or llms.txt task.
Comprehensive skill for working with Azure DevOps REST API across all services, including Boards (work items, queries, backlogs), Repos (Git, pull requests, commits), Pipelines (builds, releases, deployments), Test Plans, Artifacts, organizations, projects, security, extensions, and more. Use when implementing Azure DevOps integrations, automating DevOps workflows, or building applications that interact with Azure DevOps services
Use when past-change rationale matters (refactoring unfamiliar code, revert or hotfix analysis, issue-linked commit archaeology, session authors git changes with human-authored messages) — injects the published ChDR index (docs/adlc/memory/chdr/chdr.md, legacy .adlc/memory/chdr.md fallback) as session context; pairs history mining (/change-init) with in-session capture suggested via /change-specify (never writes drafts itself), clarified via /change-clarify; invoked from team-boot's Class Boots catalog
Build native and cross-platform mobile applications for iOS and Android with optimized performance and platform integration. Use when you need SwiftUI or Jetpack Compose development, React Native or Flutter cross-platform apps, offline-first architecture, biometric authentication, push notifications, deep linking, app startup optimization, or mobile-specific UX patterns and gesture handling.
Find an open-source, reverse-engineered tool for a closed app, API, device, protocol, file format or game, then read or fetch it. Use when a task needs to talk to something that has no official API, SDK, driver or spec, or only a limited one. Examples include "control my Tuya plug locally", "read a .psd or .dwg file", "unofficial WhatsApp, Instagram or Bilibili client", "Bambu printer protocol", "talk to my car's API", "Garmin or CGM data", "decompilation of a game" and "OpenAI-compatible proxy for a web chatbot". The skill searches a curated index of 17,000+ verified projects ranked by stars, language, license and activity.
Operate a Gitea instance via its REST API at /api/v1/... with curl. FORCED ROUTING — use this skill for any repository whose git remote host is not github.com: derive the candidate HTTPS base URL from the remote host, probe /api/v1/version, then call the REST endpoints directly.
Create, retrieve, update, and manage GitLab issues with full context gathering. Use when the user wants to create a new issue, view issue details, update existing issues, list project issues, or manage issue workflows on GitLab (glab CLI). If the user does not specify the platform, check the repository's git remote: use this skill only if the remote is GitLab — otherwise see github-issues
Build software products autonomously via GSD headless mode. Handles the full lifecycle: write a spec, launch a build, poll for completion, handle blockers, track costs, and verify the result. Use when asked to "build something", "create a project", "run gsd", "check build status", or any task that requires autonomous software development via subprocess
Use for "how does X work", code walkthroughs before changing something, and placement / ownership / layering questions ("where should this live", "which package owns this", "is this the right layer"). Explains subsystem architecture, runtime flow, onboarding mental models. Use why for motivation.
Implement and extend PostHog Data warehouse import sources. Use when adding a new source under products/warehouse_sources/backend/temporal/data_imports/sources, adding datasets or endpoints to an existing source, or adding incremental sync, resumable imports, webhook ingestion, pagination, credential validation, and source tests.
Software implementation planning with optional file-based persistence. Use when asked to plan, when unresolved architecture or scope decisions need a durable record, or when multi-phase implementation needs recovery state. For the full research-and-issue workflow, use the ia-plan command (/ia-plan in Claude Code).
Lovrabet development workflow CLI — manage datasets, database connections (dblink), Data List Pages, Custom Pages, SQL queries, Backend Function scripts, notification settings, enterprise knowledge bases, menu fact reading and syncing, developer roles and collaborators, app files, OCR text and structured-field extraction for ticket-related business documents, code generation, and platform issue reporting with the rabetbase command. Triggers: datasets, dataset relation-audit, dataset delete, dataset restore, deprecated datasets, restore datasets, dataset rename, dataset field-update, dataset extend-update, dataset business-groups, dataset business-group-update, businessGroup, field object update, doType, options, Data List Page, data list page, Custom Page, custom page, page create, page custom-list, page custom-detail, page custom-update, page custom-publish, page generate-start, page generate-status, page relation-audit, page sync, page pull, page push, page restore, restore deleted page, dblink, database connection, schema analysis, db list, db detail, db create, db update, db delete, db test, db tables, db diff, db diff-refresh-start, db diff-refresh-status, db analyze-batch-plan, db analyze-start, analyze-cancel, analyze-status, traceId, custom SQL, sql.execute, bff.execute, BF notifications, Backend Function notifications, notification config-list, EMAIL configCode, notification settings, notification.send, enterprise knowledge base, company knowledge, public knowledge, kb search, get_dataset_detail, validate_sql_content, save_or_update_custom_sql, @lovrabet/sdk, Lovrabet development, rabetbase, filter, codegen, init, appcode, app list, app members-list, tenant members-list, app user list, tenant user list, workspace, workspace init, workspace use, workspace add, workspace remove, multi-app, default app, menu list, menu visibility-update, show menu, hide menu, visible, menu external-link-create, menu external-link-update, menu rename, rename menu, create external-link menu, update external-link URL, menu anomaly audit, manual menu deletion list, menu sync, menu asset-update, update menu assets, menu move, move menu, developer roles, developer collaborators, role, role list, role user-add, role user-remove, user-resolve, join as developer, ADMIN, DEV, OWNER, CUSTOM, project create, project upgrade, schema, jq, compress, file upload, file query-url, ocr recognize, file upload, OCR recognition, ticket text extraction, ticket field extraction, invoice recognition, receipt recognition, license recognition, permanent link, issue report, platform issue, platform issue reporting, user-account dingding-sandbox-bind, DingTalk sandbox account binding.
Integrate, customize, and contribute to react-bits (github.com/DavidHDev/react-bits) — the largest and most creative library of animated React components. It covers Vite, Tailwind CSS v4, Three.js/Fiber, GSAP, and Framer Motion integrations. Use when the user asks about react-bits, animated React components, jsrepo registry, or contributing new animated components to the react-bits repository.
Complete Switchboard Oracle Protocol SDK for Solana - the permissionless oracle solution for price feeds, on-demand data, VRF randomness, and real-time streaming via Surge. Covers TypeScript SDK, Rust integration, Oracle Quotes, and all Switchboard tools.
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.