Skills
98,639 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Workbench agent panel system — ef-edit CustomEvent pipeline, registry roll-up, selector grouping, and element property schema. Use when adding new GUI edit capture points, expanding the inspector schema, or continuing development of the EFAgentPanel feature.
Build React chat interfaces with Vercel AI SDK v5/v6. Covers v6 beta (agent integration, tool approval, auto-submit), v4→v5 migration (breaking changes), useChat/useCompletion/useObject/useAssistant hooks, and 12 UI error solutions (stream parsing, stale body values, React update depth). Use when: implementing AI SDK v5/v6 chat UIs, migrating v4→v5, troubleshooting "useChat failed to parse stream", "useChat no response", or "stale body values" errors, or integrating OpenAI assistants.
Build, manage, and operate APIs with Amazon API Gateway (REST, HTTP, and WebSocket). Triggers on phrases like: API Gateway, REST API, HTTP API, WebSocket API, custom domain, Lambda authorizer, usage plan, throttling, CORS, VPC link, private API. Also covers troubleshooting API Gateway errors (4xx, 5xx, timeout, CORS failures) and IaC templates containing API Gateway resources. For general REST API design unrelated to AWS, do not trigger.
Conducts comprehensive architecture design reviews including system design validation, architecture pattern assessment, quality attributes evaluation, technology stack review, and scalability analysis. Produces detailed review reports with findings, recommendations, and risk assessments. Use when reviewing software architecture designs, validating architecture decisions, assessing system scalability, evaluating technology choices, or when users mention architecture review, design assessment, technical review, or architecture validation.
Astro framework patterns for Islands Architecture, client directives (client:load, client:visible, client:idle, client:only, client:media), integrations (MDX, Tailwind, React/Vue/Svelte), View Transitions API, and deployment strategies. Use when building content-focused sites, implementing partial hydration with islands, setting up multi-framework projects, optimizing performance with zero-JS by default, or deploying static/SSR sites.
Creates selected backend Markdown documentation from code evidence, including architecture/design docs, bounded context maps, developer onboarding, API contracts, and gap analysis for code smells, project-rule violations, DDD issues, coupling, and improvement opportunities. Use when the user asks to document a backend, map backend architecture or domains, onboard backend developers, audit backend documentation gaps, or produce objective backend docs. Do NOT use for frontend docs, generic README writing, or implementing backend changes.
Use when implementing audio in Bevy 0.20 with `AudioPlayer`, `PlaybackSettings`, `AudioSink` or `SpatialAudioSink`, spatial listeners, application mix groups, ambience/music transitions, asset lifetime, browser gesture restrictions, or choosing built-in audio versus `bevy_seedling 0.8`.
Use when adding `RapierPhysicsPlugin`, spawning `RigidBody`/`Collider`, reading `CollisionEvent` or `PhysicsQuarantineEvent`, querying with `ReadRapierContext`, configuring `KinematicCharacterController`, or ordering gameplay around `PhysicsSet` in Bevy 0.20.
Use when research outlines, PRD iterations, follow-up question lists, acceptance test cases, and BKN_Creator handover summaries need to be compiled from customer background, visit preparation, business interviews, meeting minutes, audio transcripts, PRDs, BRDs, process descriptions, system/data materials, or rough ideas.
Implement features, write code, and set up Banuba Video Editor SDK. Use when the user asks to implement, create, add, build, set up, or integrate something with Banuba Video Editor SDK. Trigger with "help me add", "set up", "build a video editor". Covers both the full pre-built UI (VE SDK) and the headless, code-level VE API (Playback/Export/Effects modules) for custom video editing workflows. Not for looking up existing docs - use explain-video-editor-photo-editor-docs for that.
Helps agents write and review Scala Cats Effect Resource code. Use for preventing resource leaks and use-after-release bugs, modeling disposable values with Resource, designing Resource-returning factories and constructor-injected services, wrapping Java AutoCloseable values, composing resources, and handling cancellation-safe release.
CLI tools execution specification (gemini/claude/codex/qwen/opencode) with a unified prompt template, mode options, and auto-invoke triggers for code analysis and implementation tasks. Supports configurable CLI endpoints for analysis, write, and review modes.
Cross-chain interoperability for Stellar. Entry point with a rail-selection decision table and shared pitfalls, routing to three companion files — cctp.md (Circle CCTP V2, native USDC burn-and-mint between Stellar and EVM/Solana chains, domain 27, the CctpForwarder requirement for Stellar recipients), axelar.md (Axelar GMP for Soroban contracts calling contracts on other chains, and the Interchain Token Service for multichain tokens), and layerzero.md (LayerZero V2 OApp messaging with configurable DVN security, OFT omnichain tokens, and USDT0 — native USDT on Stellar). Also covers NEAR Intents (intent-based cross-chain swaps into XLM or Stellar USDC) at the routing level. Use when bridging USDC or USDT to or from Stellar, sending messages between a Stellar contract and another blockchain, making a token exist on multiple chains, or adding cross-chain swaps to an app.
Assesses an open Dependabot pull request and emits a recommendation (Merge / Review before merging / Do not merge) plus confidence (High / Medium / Low) with concise prose grounded in upstream source changes. Advisory only: it posts a single comment and never merges, approves, or labels. Designed to run as a scheduled reconciler that comments exactly once per PR state and re-comments only when the PR head commit changes.
Generate django-modern-rest transport-layer skeletons from OpenAPI 3.1+ specs. Use when asked to turn an OpenAPI file, URL, or pasted document into typed DTOs, controllers, routers, Django URL wiring, and minimal tests for this repository or similar projects built on dmr. Trigger on requests to scaffold APIs, bootstrap apps, or map OpenAPI operations to Controller, Router, and OpenAPI view constructs without implementing business logic.
Use when YOU (the AI agent) are running on Windows OUTSIDE WSL (Git Bash/MSYS/PowerShell shell) and need to run ANY docker / docker compose command. Docker Desktop runs on the WSL2 engine, so commands must be re-issued INSIDE WSL via wsl.exe -- running them from the Windows shell on a network/SMB drive (Z:, UNC) corrupts bind-mount paths. Does NOT apply if your shell is already inside WSL. Triggers on: docker, docker compose, docker-compose, container, bind mount, volume, 'is a directory', mount source wrong, Windows + Docker Desktop, WSL.
Keep a repository's docs the product authority, with one dated owner-decision register, lasting docs in `docs/` grouped by kind, and scratch in an ignored `.scratch/`. Use when you record or rely on an owner decision, add, move, or remove a doc, write a temporary note, plan, or spec, edit agent instructions, or set this method up in a new repository.
Use this skill to draft or update the [Unreleased] section of CHANGELOG.md from the actual changes since the last tag. Run this at any point during development to keep a working copy of the release narrative. Does NOT bump versions or create tags.
Provides comprehensive guidance for the Electron EGG framework, including project structure, main/renderer processes, IPC, window management, and desktop app development. Use when the user asks about Electron EGG, needs to create Electron applications with EGG, or work with Electron EGG patterns.
Complete GSAP (GreenSock Animation Platform) reference for elite web animations. Covers ScrollTrigger, SplitText, Flip, MorphSVG, DrawSVG, MotionPath, Observer, Draggable, timelines, Lenis smooth scroll, and framework integration. 2026 UPDATE: All GSAP plugins are now 100% FREE (Webflow acquisition). Use when asked about: GSAP, gsap, GreenSock, ScrollTrigger, scroll animations, SplitText, text animations, Flip plugin, layout animations, MorphSVG, DrawSVG, SVG animations, complex animations, animation library, pinned sections, horizontal scroll, parallax effects, smooth scroll, Lenis, or any sophisticated web animation needs. IMPORTANT: Always load elite-accessibility alongside this skill for reduced-motion patterns. References elite-design-core for design tokens.
Comprehensive guide for authoring Claude Code extensions including skills (SKILL.md), hooks, slash commands, and subagents. Use when: creating skills, writing hooks, making slash commands, building subagents, learning Claude Code extensions.
Complete fal.ai API reference system. PROACTIVELY activate for: (1) @fal-ai/client JavaScript setup, (2) fal_client Python setup, (3) fal.subscribe/run/stream methods, (4) Queue management (submit/status/result), (5) Webhook configuration, (6) File upload to fal.media, (7) REST API endpoints, (8) Real-time WebSocket connections, (9) Error handling patterns. Provides: Client configuration, method signatures, queue workflow, webhook payloads, common parameters. Ensures correct API usage with proper authentication and error handling.
Complete fal.ai optimization system. PROACTIVELY activate for: (1) Queue vs run performance, (2) Parallel request batching, (3) Streaming for real-time UI, (4) WebSocket for interactive apps, (5) Model cost comparison, (6) Image size optimization, (7) Inference step tuning, (8) Webhook vs polling, (9) Result caching by seed, (10) Serverless scaling config. Provides: Parallel patterns, cost strategies, caching examples, monitoring setup. Ensures optimal performance and cost-effective usage.
Complete fal.ai serverless deployment system. PROACTIVELY activate for: (1) Creating fal.App class, (2) GPU machine selection (T4/A10G/A100/H100), (3) setup() for model loading, (4) @fal.endpoint decorators, (5) Persistent volumes for weights, (6) Secrets management, (7) Scaling configuration (min/max concurrency), (8) Multi-GPU deployment, (9) fal deploy commands, (10) Local development with fal run. Provides: App structure, Dockerfile patterns, deployment commands, scaling config. Ensures production-ready serverless ML deployment.
Adversarial pass/fail review gate that enforces the feature-arch skill's React feature-based architecture rules. Use when a diff, branch, PR, or src/ tree must be judged for architecture conformance before merge — feature folder structure, import boundaries, cross-feature isolation, data-fetching, state, testing, and naming rules. A single blind reviewer renders per-rule PASS/FAIL verdicts with cited evidence, and the reviewer's structured output is the verdict fail-closed. Use the feature-arch skill itself to design or migrate an architecture; use this gate to judge whether work conforms to it.
Selects a fine-tuning technique (SFT, DPO, RLVR, or RLAIF) for the user's use case and validates it against the selected model's available recipes. Use when the user has decided to finetune and needs to choose a technique, or when the technique needs to be validated against a model. Requires a base model to already be selected (via model-selection skill).
Build or audit Flutter accessibility for semantics, screen readers, focus, keyboard access, text scaling, contrast, target size, and motion preferences. Pair with flutter-responsive-layout when large text causes reflow, clipping, or overflow across constraints.
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.