Build React 19 applications with TypeScript. Covers Actions, Activity, use() hook, React Compiler, ref-as-prop, useEffectEvent, and strict TypeScript patterns.
Crea da zero un'app web con React e TypeScript usando uno stack fisso e una struttura ordinata, senza fare domande tecniche all'utente.
Use when building any val with a user interface — dashboards, web apps, landing pages, forms, admin tools, anything users see in a browser.
Modern React UI patterns for loading states, error handling, and data fetching. Use when building UI components, handling async data, or managing UI states.
Modern React UI patterns for loading states, error handling, and data fetching. Use when building UI components, handling async data, or managing UI states.
クライアントの React/Next.js コードで useEffect を追加・使用しようとするときに発動。「本当に useEffect が必要か」を検討するよう促す。データ取得は Server Component / Server Actions でできないか、イベントハンドラで十分でないかを確認する。
React useEffect best practices from official docs. Use when writing/reviewing useEffect, useState for derived values, data fetching, or state synchronization.
Use when you want to validate changes before committing, or when you need to check all React contribution requirements.
React + Vite SPA development patterns including project setup, configuration, and optimization. Use for building single-page applications with Vite bundler.
Integrate React with a Ruby on Rails app — Inertia.js as the default (server-rendered routing, no separate API), classical API + SPA when Inertia doesn't fit, jsbundling-rails…
Zustand state management patterns for React. Use when working with Zustand stores, debugging state timing issues, or implementing async actions.
Provides before/after patterns for migrating test files to React 19 compatibility, including act() imports, Simulate removal, and StrictMode call count changes.
Expert in building blazing-fast reactive dashboards with comprehensive testing. Masters React performance patterns, testing strategies for async components, and real-world…
Reactor essentials in one place — React-to-Reactor mental model, minimal app shape, hooks, the most-used factories, the critical gotchas, and project setup.
Read and analyze Inspect AI evaluation log files using the Python API. Extract samples, messages, events, and metrics from .eval files.
Telegram-specific implementation for reading recent conversation history. Only use when the deployment is known to use telegram (e.g.
Check local docs, ADRs, interfaces, schemas, and primary upstream sources before guessing. Use when work depends on APIs, frameworks, repo conventions, architecture decisions, or…
Readable C/C++/Rust/CUDA code rules inspired by The Art of Readable Code. Use when writing, reviewing, or refactoring C, C++, Rust, or CUDA code.
Generates a green/amber/red deployment readiness assessment for an AI Persona using the 8-checkpoint scorecard.
Analyzes logs efficiently through targeted search and iterative refinement. Use when investigating errors, debugging incidents, or analyzing patterns in application logs.
Write developer-oriented README as onboarding documentation. Use when creating/updating README, setting up new projects, or when new developers need to understand the codebase…
Generates publication-grade README.md files by statically analyzing the actual target codebase — never guesswork or generic templates.
为 Python 和 Rust 项目生成中文 README.md 文档。包含项目概述、安装指南、使用方法、配置说明和示例代码等标准章节。当用户要求生成 README、编写项目文档、创建项目说明，或提到 README.md 时使用此 skill。
Ensure the project README provides immediate, exact commands for setup, testing, and deployment to help agents and humans bootstrap quickly.
建立、重寫或改善中文 repository README.md，尤其是 Greenfield repo bootstrap、OpenCode 自動 scaffold 後的 README、README 很像流水帳 evidence、或需要中英雙語/多語 README 與語言切換器時必須使用。預設以繁體中文撰寫 README.md，整合…
ReadMe.com platform integration for API documentation. Sync OpenAPI specs, manage versions, configure API reference settings, automate changelogs, and integrate with metrics…
Get the code ready for deployment by running the project's test, lint, and build commands in order, fixing any issues that arise and rerunning each command until it passes before…
Deep release-readiness gate for a single letterbox service — checks CI green, contracts in sync, deploy-order prereqs satisfied, feature toggle present, and unpushed work vs the…
Use when tests mock subprocesses, filesystems, parsers, databases, networks, CLIs, serialization, or OS/provider integration.
Use when AgentHub work claims real E2E, approved-real, release readiness, packaged Desktop behavior, full-stack data flow, performance acceptance, or before merging branches that…
Generate real estate, architecture, and interior design showcase video prompts for Seedance 2.0 on Higgsfield.
Multi-user collaborative editing with Yjs CRDT, SSE fast-path transport, and granular server-side merge.
Testing real-time collaborative features including conflict resolution, CRDT validation, cursor presence, and concurrent editing scenarios.
Implement real-time functionality using WebSockets, Server-Sent Events (SSE), or long polling. Use when building chat applications, live dashboards, collaborative editing,…
How to keep the UI in sync with agent changes via SSE plus polling fallback. Use when wiring query invalidation for new data models, debugging UI not updating, or understanding…
Use when implementing real-time features with SSE, WebSocket, or HTMX integration in Lexigram
Test parsers against real-world open source code with performance assertions and comprehensive symbol extraction validation
Use Biloba's realistic interaction track (b.Realistic()) in a Go Ginkgo/Gomega suite when a spec must exercise the realism the fast default trades away — clicking through/around…
Use when: validating whether design documents and page requirements fit real user work scenarios before architecture or implementation.
Reality is the ultimate judge. Use when need to ground insights in experience, test if it actually works, or validate through results not theory.
God-file concierge. Deterministic crawler (scripts/concise.py, no LLM) finds source files over a LOC threshold, scores them by blast radius / test safety / churn, and keeps a…
Two-phase architecture and implementation planning with ADR direction, affected files, and must-pass test scenarios.
Add realtime features to my app — set up WebSockets or SSE with Socket.io, Pusher, Ably, Supabase Realtime, or Firebase using channels, presence tracking, typing indicators,…
Expert guide for building real-time collaboration features using WebSockets, WebRTC, CRDTs (Yjs, Automerge), and Liveblocks / Panduan ahli untuk fitur kolaborasi real-time.
Use to decide whether realtime is needed and design it — SSE vs WebSockets vs polling, authentication on connect, room/channel authorization, reconnection with missed-event…
Real-time systems expert for WebSockets, SSE, presence, and live synchronizationUse when "websocket, real-time updates, live collaboration, presence indicator, online status, live…
Real-time communication patterns: WebSocket with reconnection and presence, Server-Sent Events (SSE) for one-way streaming, long polling fallback, room-based pub/sub, connection…
Use when designing, implementing, reviewing, debugging, testing, profiling, or porting concurrent, parallel, distributed, high-performance, network dataplane, kernel-bypass, or…
Test collaborative features against concurrency, reconnection, and ordering rather than only the single-user path.
Implement real-time features with WebSockets, Server-Sent Events, and long polling. Covers connection management, room-based messaging, presence tracking, and scaling strategies.
RealtimeSTT is a Python library for real-time speech-to-text with advanced voice activity detection, wake word activation, and instant transcription.
React Native Reanimated 4.x animation patterns. Use when adding animations, transitions, entering/exiting effects, or gesture-driven animations to React Native screens.
Use BEFORE answering analytical, diagnostic, planning, or multi-step reasoning questions. Trigger phrases include "should I X or Y", "why is X happening", "what's the bes — from…
Method for choosing and auditing an agent's reasoning_effort. Use when setting or reviewing reasoning_effort, when an agent was created with high, or when asked to cut reasoning…
Use for multi-step / ambiguous / end-to-end work — refactor a whole module, drive a vague ticket to a verified result, plan+build+verify a migration; coordinates the reasoning…
Fetch latest origin/main and rebase it onto the current branch, resolving conflicts if necessary. Use when the user wants to rebase on main, update their branch with latest main,…
Rebase a feature branch (fgql, rsc, etc.) of sample-app-react-ebay onto the latest main from the ../sample-react-app-ebay-new worktree.
Rebuild the per-machine, per-config extended skill index used by platform subagents. Scans installed Claude Code skills, classifies each by platform relevance (iOS, Android,…
Use when the user references a PAST DECISION, choice, or rationale — "what did we decide about caching?", "why is X done this way?", "didn't we agree to use Y?", "remind me how we…
Master receipt scanning operations including parsing, debugging, enhancing accuracy, and database integration.