Skills
98,067 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Use when building CLI tools, implementing argument parsing, or adding interactive prompts. Invoke for parsing flags and subcommands, displaying progress bars and spinners, generating bash/zsh/fish completion scripts, CLI design, shell completions, and cross-platform terminal applications using commander, click, typer, or cobra.
Create Git branches following the Conventional Branch specification (feature/, bugfix/, hotfix/, release/, chore/, plus AI agent prefixes ai/, copilot/, cursor/, claude/, codex/). Use when creating a new branch, naming a branch, or checking whether a branch name complies with the spec. Also use alongside commit-check for automated validation.
Migrate a legacy Decentraland SDK6 scene to SDK7. Use when the user wants to port an SDK6 scene, upgrade the decentraland-ecs dependency to @dcl/sdk, or rewrite class-based scene code in the ECS style. Do NOT use for new scenes (see create-scene) or for SDK7-to-SDK7 refactors.
Designs, implements, and reviews professional mobile UI for React Native and Expo, with platform-aware design and review guidance for iOS and Android. Use when the task involves mobile screens, components, navigation, visual direction, design systems, accessibility, gestures, haptics, animations, typography, color, dark mode, safe areas, adaptive windows, localization, platform conventions, App Store or Play-quality polish, iOS HIG, Material Design, Expo Router, React Navigation, Reanimated, Gesture Handler, or mobile UX critique
Astro-specific performance optimizations for 95+ Lighthouse scores. Covers critical CSS inlining, compression, font loading, and LCP optimization. Use when optimizing Astro site performance, improving Astro Lighthouse scores, or configuring astro-critters. Do NOT use for non-Astro sites (use perf-web-optimization or core-web-vitals) or running Lighthouse audits (use perf-lighthouse).
Deploy a WHOLE redesigned site to AEM Edge Delivery Services — the full-site, bulk sibling of `deploy` (which ships one page). Use to roll out, bulk-deploy, or publish an entire migrated stardust site at once (“deploy all pages”, “full site deployment”, “deploy the whole/entire website to AEM”), not just a single page. Inventories the migrated tree (stardust/migrated/ + _meta.json) into a delivery ledger, dedups blocks, drives `deploy` per page, verifies, and tracks what's done and what's left. Supports archetypes-only mode — when only the template archetype pages are migrated, it deploys all block code immediately and registers the rest as content-pending.
Write .ts script files for the Creator Hub Script component — self-contained classes attached to individual entities. Use when the user wants to create a custom smart item, a reusable scripted entity, or write code that runs on a Creator Hub Script component. Do NOT use for regular scene index.ts code or global systems (see scene-runtime, add-interactivity).
Expert in building shareable generator tools that go viral - name generators, quiz makers, avatar creators, personality tests, and calculator tools. Covers the psychology of sharing, viral mechanics, and building tools people can't resist sharing with friends. Use when: generator tool, quiz maker, name generator, avatar creator, viral tool.
Register Wix CLI extensions with the app in src/extensions.ts. Use when registering new or existing extensions with the main app builder, adding .use() calls, importing extensions, or updating the extensions chain. Triggers include register extension, extensions.ts, app().use(), import extension, and extension not appearing.
Execute long-running, multi-session tasks autonomously using Claude Code headless mode or in-session hook-based loops. Supports structured task decomposition (for complex projects) and lightweight Ralph-style iteration (for TDD, bug fixing, refactoring). Use this skill whenever the user says "autonomous", "long-running task", "multi-session", "run this in the background", "keep working on this", "batch process", "iterate until done", "ralph loop", or wants any task that requires sustained, unattended execution.
Business processes (bizproc) — CBPDocument, Starter, custom activities and triggers in /local/activities, template rights. Use for approvals, document workflows, robots/activities, starting or stopping workflows from PHP, or bizproc agents.
Writes, tests, registers and debugs Claude Code hooks (PreToolUse, PostToolUse, SessionStart, Stop) that turn a rule the model keeps breaking into a hard gate. Use when the user wants to block or intercept a tool call, add a guard rail, fix a misfiring hook, or says 拦截 / 守卫 / 钩子 — including "make it stop doing X".
Use when building Django web applications or REST APIs with Django REST Framework. Invoke when working with settings.py, models.py, manage.py, or any Django project file. Creates Django models with proper indexes, optimizes ORM queries using select_related/prefetch_related, builds DRF serializers and viewsets, and configures JWT authentication. Trigger terms: Django, DRF, Django REST Framework, Django ORM, Django model, serializer, viewset, Python web.
Call Ethereum and EVM chains from IC canisters (Rust) via the EVM RPC canister using the evm_rpc_client crate. Covers typed API calls, raw JSON-RPC, multi-provider consensus, ERC-20 reads, and sending pre-signed transactions. Use when calling Ethereum, Arbitrum, Base, Optimism, or any EVM chain from a Rust canister. Do NOT use for generic HTTPS calls to non-EVM APIs—use https-outcalls instead
Own the GitHub issue lifecycle in five modes: file issues from a plan, start a workable issue in its own worktree, close one once its PR merges, sync PR↔issue links and dependents after merge, and triage the tracker for label and title gaps and for done, duplicate, or obsolete issues. Use when the user says "create issues from this plan", "file an issue", "start issue #42", "close #42", "sync my issues", "triage the backlog", "set the priority on #42", "#42 is grilled, mark it ready", "fix the titles on these issues", or "clean up my issues".
MariaDB-specific features and capabilities that go beyond standard MySQL. Use when evaluating MariaDB, optimizing an existing MariaDB application, reviewing code or schema for MariaDB improvements, asking what MariaDB can do that other databases cannot, or migrating from Oracle to MariaDB. Also use when the user asks what could be improved in how a codebase uses MariaDB, or asks about MariaDB advantages over MySQL or PostgreSQL
Guide for writing, refactoring, and testing MoonBit projects, including exclusive use of `.mbtx` for agent-authored automation. Use when working in MoonBit modules or packages, organizing MoonBit files, using moon tooling (build/check/run/test/doc/ide etc.), or following MoonBit-specific layout, scripting, documentation, and testing conventions.
Use when building PHP applications with modern PHP 8.3+ features, Laravel, or Symfony frameworks. Applies strict typing, PHPStan level 9, async patterns with Swoole, and PSR standards. Creates controllers, configures middleware, generates migrations, writes PHPUnit/Pest tests, defines typed DTOs and value objects, sets up dependency injection, and scaffolds REST/GraphQL APIs. Use with Eloquent, Doctrine, Composer, Psalm, ReactPHP, or any PHP API development.
Use this skill when the user asks to create custom Remotion transitions, asks about “cool transitions,” “cinematic transitions,” “striped transitions,” “glitch transitions,” “custom TransitionPresentation,” or wants to build scene-to-scene transitions in Remotion beyond the built-in library. Also triggers for “how to make transitions in Remotion,” “custom transition,” “high-energy transitions,” “energy transitions,” “branded transitions.”
Ruby performance optimization guidelines. This skill should be used when writing, reviewing, or refactoring Ruby code to ensure optimal performance patterns. Triggers on tasks involving object allocation, collection processing, ActiveRecord queries, string handling, concurrency, or Ruby runtime configuration.
Build a full-site or multi-page Scrapy spider to get structured data from a website, in a new project or added to an existing one. Do not use for analyzing locally saved HTML, fixing or debugging an existing spider, schema-only or existing-spec work, Scrapy Cloud operations, or advisory questions.
Swift 6.2 and SwiftUI performance optimization for iOS 26 clinic architecture codebases. Covers async/await concurrency patterns, Sendable/actor isolation, view/render performance, and animation performance while preserving modular MVVM-C boundaries across App, Feature, Domain, and Data layers. Use when profiling or optimizing Swift/SwiftUI behavior in clinic modules.
Expert guidance on Swift Testing best practices, patterns, and implementation. Use when developers mention: (1) Swift Testing, @Test, #expect, #require, or @Suite, (2) "use Swift Testing" or "modern testing patterns", (3) test doubles, mocks, stubs, spies, or fixtures, (4) unit tests, integration tests, or snapshot tests, (5) migrating from XCTest to Swift Testing, (6) TDD, Arrange-Act-Assert, or F.I.R.S.T. principles, (7) parameterized tests or test organization
A comprehensive guide to implementing Syncfusion Angular Input components, including Uploader, NumericTextBox, TextBox, Signature, CheckBox, OTP Input, RangeSlider, TextArea, ColorPicker, MaskedTextBox, and Rating. This guide is intended for building Angular applications with file upload UIs supporting async and chunked uploads, drag-and-drop functionality, numeric inputs with validation and formatting, text inputs with floating labels and custom adornments, digital signature capture with undo, redo, and export capabilities, checkbox multi-select and indeterminate states, seamless form integration, accessibility compliance, one-time password (OTP) inputs, programmatic row adjustments, slider tick customization and styling, visual color selection with HSV picker and palette support, masked text input for structured data entry, and interactive star rating components
Authors JSON Schema definitions for use with z-schema validation. Use when the user needs to write a JSON Schema, define a schema for an API payload, create schemas for form validation, structure schemas with $ref and $defs, choose between oneOf/anyOf/if-then-else, design object schemas with required and additionalProperties, validate arrays with items or prefixItems, add format constraints, organize schemas for reuse, or write draft-2020-12 schemas.
Bootstrap a reproducible LLM Observability experiment through the Python ddtrace SDK or the Node dd-trace SDK. Use for experiment, dataset, evaluator, benchmark, regression, or LLM-as-a-judge scaffolding. The legacy Python invocation remains supported.
Core GSAP animation concepts, including tweens, timelines, easing functions, and animation properties. Use when implementing basic animations or transitions, or learning GSAP foundations. An essential starting point for any GSAP-based animation work.
Implement a plan, spec, or issue into working code in straight-through, tests-after, or TDD mode, then run the repo's test and build gate before declaring done. Use when the user says "implement this plan", "implement #42", "do this TDD", "build it, then add tests", "apply these review findings", or "make this failing test pass". It runs attended; the unattended issue-to-PR span is afkkit's.
Multi-agent autonomous startup system for Claude Code. Triggers on “Loki Mode.” Orchestrates 100+ specialized agents across engineering, QA, DevOps, security, data/ML, business operations, marketing, HR, and customer success. Takes a PRD to a fully deployed, revenue-generating product with zero human intervention. Features a Task tool for subagent dispatch, parallel code review by 3 specialized reviewers, severity-based issue triage, a distributed task queue with dead-letter handling, automatic deployment to cloud providers, A/B testing, customer feedback loops, incident response, circuit breakers, and self-healing. Handles rate limits with distributed state checkpoints and automatic resume with exponential backoff. Requires the --dangerously-skip-permissions flag
Configure a GitHub repo through gh in four modes: an inferred About description and topics, the workflow labels (issuekit's lifecycle and priority sets plus `ai-review`), a new-repo setup (house settings, baseline files, About, labels), and a docs/ renumbering into creation order. Use when the user says "set the repo description", "add topics", "provision the workflow labels", "set up this new repo", or "renumber the docs".
Generates Spring Boot 3.x configurations, creates REST controllers, implements Spring Security 6 authentication flows, sets up Spring Data JPA repositories, and configures reactive WebFlux endpoints. Use when building Spring Boot 3.x applications, microservices, or reactive Java applications; invoke for Spring Data JPA, Spring Security 6, WebFlux, Spring Cloud integration, Java REST API design, or Microservices Java architecture.
Expert TypeScript developer specializing in type-safe application development, advanced type systems, strict mode configuration, and modern TypeScript patterns. Use when building type-safe applications, refactoring JavaScript to TypeScript, or implementing complex type definitions.
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.