Web & Frontend

blakeox Bundle

Zero-assumption accessibility audit against WCAG 2.2 AA or higher. Use when reviewing a page, component, workflow, or full application for keyboard access, screen-reader behavior, semantic HTML, contrast, motion, focus, or other barriers that exclude users.

blakeox Bundle

Highly opinionated user experience designer that produces workflow direction, not implementation. Use when onboarding, checkout, dashboards, forms, navigation, information architecture, state meaning, recovery, or feature flows need less friction and clearer time-to-value. Use ui-designer for visual presentation and a11y-audit for conformance.

blakeox Bundle

First-principles review of a named codebase or product section, calibrated to project stage. Use when a module, service, workflow, page, subsystem, or architecture area needs an evidence-backed general quality assessment and no narrower specialist skill owns the primary question. Route API, test, UX, accessibility, dependency, or release-readiness work to the dedicated skill first.

blakeox Skill

Vercel release specialist. Use for Next.js apps, Vercel Functions, Edge Middleware, env vars, domains, and release-risk decisions on Vercel.

blakeox Skill

Accessibility and inclusive interaction specialist. Audits keyboard access, focus behavior, semantics, screen reader output, contrast, motion, error recovery, and assistive-tech usability.

futuregerald Bundle

any input (code, docs, papers, images) - knowledge graph - clustered communities - HTML + JSON + audit report

wojons Bundle

Review React components for best practices and performance issues

futuregerald Bundle

花叔Design（Huashu-Design）——用HTML做高保真原型、交互Demo、幻灯片、动画、设计变体探索+设计方向顾问+专家评审的一体化设计能力。HTML是工具不是媒介，根据任务embody不同专家（UX设计师/动画师/幻灯片设计师/原型师），避免web design tropes。触发词：做原型、设计Demo、交互原型、HTML演示、动画Demo、设计变体、hi-fi设计、UI mockup、prototype、设计探索、做个HTML页面、做个可视化、app原型、iOS原型、移动应用mockup、导出MP4、导出GIF、60fps视频、设计风格、设计方向、设计哲学、配色方案、视觉风格、推荐风格、选个风格、做个好看的、评审、好不好看、review this design。**主干能力**：Junior Designer工作流（先给假设+reasoning+placeholder再迭代）、反AI slop清单、React+Babel最佳实践、Tweaks变体切换、Speaker Notes演示、Starter Components（幻灯片外壳/变体画布/动画引擎/设备边框）、App原型专属守则（默认从Wikimedia/Met/Unsplash取真图、每台iPhone包AppPhone状态管理器可交互、交付前跑Playwright点击测试）、Playwright验证、HTML动画→MP4/GIF视频导出（25fps基础 + 60fps插帧 + palette优化GIF + 6首场景化BGM + 自动fade）。**需求模糊时的Fallback**：设计方向顾问模式——从5流派×20种设计哲学（Pentagram信息建筑/Field.io运动诗学/Kenya Hara东方极简/Sagmeister实验先锋等）推荐3个差异化方向，展示24个预制showcase（8场景×3风格），并行生成3个视觉Demo让用户选。**交付后可选**：专家级5维度评审（哲学一致性/视觉层级/细节执行/功能性/创新性各打10分+修复清单）。

spjoshis Skill

Master system design with architecture patterns, component design, scalability planning, and creating robust, maintainable systems.

spjoshis Skill

Master Vue 3 Composition API with setup, ref, reactive, computed, watch, and composables for building scalable reactive applications.

wojons Bundle

Verify every step exhaustively - debug with detailed tracing and test each component individually to leave no stone unturned

spjoshis Skill

Master React hooks patterns including useState, useEffect, useContext, custom hooks, and advanced patterns for building scalable React applications.

bybren-llc Bundle

API route implementation patterns with RLS, Zod validation, and error handling. Use when creating API routes, implementing endpoints, or adding server-side validation.

bybren-llc Bundle

Frontend patterns for Next.js App Router, Clerk auth, shadcn/Radix UI, and PostHog analytics. Use when building UI components, creating pages, implementing auth flows, or adding analytics events. Ensures consistent UX patterns and accessibility standards.

futuregerald Bundle

Scan a codebase for deepening opportunities, present them as a visual HTML report, then grill through whichever one you pick.

citypaul Bundle

RED-GREEN-REFACTOR for production behavior changes, followed by mutation testing or alternate evidence once at the end-of-phase PR-readiness gate. Use before implementing new features, bug fixes, or any changed observable behavior, and as the governing workflow for mixed implementation work. Load it for any request to add, implement, or fix production code, including a bug report that calls the fix a one-liner or a quick change in a named file — a small fix still starts from a failing behavior test, not from an edit. This is the workflow, not the whole toolkit — load it alongside, not instead of, functional for logic or data-shaping changes (pricing, tiering, filtering, merging, sorting, totals), refactoring when a change also tidies already-tested code, front-end-testing (react-testing for React components) when the behaviour under test lives in a browser — a form, a button, a spinner, a page — and any architecture skill the repository declares (hexagonal-architecture, domain-driven-design). Do not use for p

citypaul Bundle

Model front-end and workflow logic as XState v5 statecharts and actors — when finite states earn their place (and when @xstate/store or a discriminated union is honest), event-first machine design, guards/actions/delays, invoke vs spawn, app-level actor systems, persistence, @xstate/react integration, behavior-driven machine testing including model-based path generation via xstate/graph, and a Mermaid stateDiagram-v2 render regenerated whenever a machine is designed or changed. Fires on ordinary React code that is already a hand-rolled statechart, not only on files that import xstate — a submitting or isLoading useState, a then/catch chain that sets state in sequence, a double-submit guard such as an early return while submitting, an error cleared just before a retry, a useEffect needing an ignore flag in its cleanup, a timer something must clear, or a drag or gesture handler binding document listeners it must unbind. Two tests decide ownership, never how the value renders: an external answer changed it, or t

citypaul Skill

Testing patterns for behavior-driven tests. Use when writing tests, creating test factories, structuring test files, or deciding what to test. Do NOT use for UI-specific testing (see front-end-testing or react-testing skills).

citypaul Bundle

Structured learning and tutoring for any topic. Use when the user wants to learn a concept, be quizzed, create a learning plan, generate a structured course, or produce reviewable HTML lessons. Invoked via /teach-me [topic].

citypaul Bundle

Decide whether a system needs a backend-for-frontend, how many, and what each one may own: adoption signals and honest costs, one-experience-one-BFF granularity with frontend-team ownership, the shape-don't-decide rule, upstream aggregation with partial-failure and resilience budgets, identity-keyed BFF caching, mediating user identity toward upstream services (token exchange, confused-deputy prevention), and the alternatives (shared gateway, GraphQL federation, token-mediating backend, direct SPA→API, meta-framework server as BFF). Use when adopting or splitting BFFs, aggregating upstream services, handling upstream failures, forwarding user identity downstream, weighing GraphQL against per-client BFFs, or auditing a BFF that has drifted into a public API or a business-logic layer. For protecting the BFF's own entry points use bff-entry-points; for physical route layout use structure-codebase; for externally consumed API contracts use api-design; for OAuth/OIDC protocol flows use secure-oauth-oidc.

wojons Bundle

Use when you need comprehensive accessibility auditing including WCAG compliance, legal requirements mapping, and user testing with disabilities

wojons Bundle

Run integration tests for component interactions

wojons Bundle

Test application accessibility compliance

peterfile Skill

Use when creating visual artifacts such as diagrams, Excalidraw files, HTML mockups, design references, p5.js sketches, pixel art, Manim animations, or DESIGN.md specs.

bahayonghang Bundle

Author Typst slide decks with the Touying package. Use when creating or editing .typ presentations: applying or building Touying themes (e.g. metropolis), turning headings or #slide into slides, incremental reveals (#pause, dynamic content), speaker notes via pdfpc, and page layout config. Not for non-Typst decks (HTML, PPT, reveal.js, Marp) or ordinary non-presentation Typst documents.

bahayonghang Bundle

Independent pre-merge review of a git diff, PR, or named files. Use when the user asks to review a PR, inspect current git changes, or hunt functional regressions, missed scenarios, wrong assumptions, concurrency bugs, and test gaps as an independent reviewer who does not defend the author's approach / 独立审查、功能回归、遗漏场景、错误假设、并发、测试盲区. Also use for a full-spectrum multi-dimension project audit across correctness, security, performance, readability, testing, and architecture / 全维度代码审计 / 全维度的代码审计. Not for maintainability-only or structure/refactoring reviews; not for applying code changes; not for repository health reports spanning compliance, privacy, cost, or accessibility. Do not modify product code. Output follows the discussion language.

citypaul Skill

Produce a mock-audit storyboard — a single HTML page embedding related UX surfaces side-by-side, with per-mock audit checklists, a flow diagram, and gap cards for missing mocks. Use when reviewing several mocks together would materially reduce context-switching or expose cross-surface gaps, or when the user asks to see or audit a whole flow in one place.

citypaul Bundle

React component testing patterns including components, hooks, context, and forms. Covers Vitest Browser Mode with vitest-browser-react and @testing-library/react. Use when testing React applications. For general UI testing patterns, see the front-end-testing skill.

bahayonghang Bundle

Create self-contained HTML artifacts (single-file by default, split bundles when oversized) for complex, reviewable, or shareable work outputs. Use for an HTML artifact, browser-viewable report, implementation plan, PR/code-review report, dashboard, or mini deck, or for long Markdown-like outputs needing navigation or diagrams. Not for short answers, commit messages, or production UI.

citypaul Bundle

Behavior-driven UI testing patterns across Vitest Browser Mode, Playwright E2E evidence boundaries, and DOM Testing Library. Use when testing any front-end application, writing UI or end-to-end tests, querying DOM elements, simulating user interactions, or choosing the lightest harness that proves a browser-observable claim. For React-specific patterns, see the react-testing skill.

citypaul Bundle

Make React and Next.js performance changes that are measured, evidence-backed, and behaviorally safe. Routes to the right rule catalogue — vercel-react-best-practices for the 72 prioritized React/Next rules, vercel-composition-patterns for component API shape, next-best-practices for App Router semantics, core-web-vitals and performance for field metrics and non-React budgets — then governs how a rule is applied here: baseline first, one hypothesis at a time, behavior tests unchanged and green, and the house functional and typing rules winning where a micro-optimization would trade them away. Use when React or Next.js feels slow — a search box or list that stutters or lags while typing, a page that burns CPU while it sits open, a sluggish dashboard, jank on scroll, a screen that takes too long to appear — when a bundle, waterfall, re-render, or hydration problem is suspected, when reviewing a diff for performance, or when a performance rule appears to conflict with immutability, TDD, or type-safety guidance.

bahayonghang Bundle

Use when the user wants a read-only disk/storage analysis on macOS or Windows: 磁盘满了, C盘满了, 空间不够, 存储分析, 占空间, 清缓存, storage analysis, disk cleanup, or Chinese 内存满了 when they mean disk space. Scans known hotspots, classifies cache vs user data vs keep, and writes an HTML report with copyable commands. After this-turn approval of shown paths, may start a local report server that only moves allowlisted cache paths to Trash. Do not use for RAM/process memory, Windows dev-process cleanup, Downloads file sorting, startup-app optimization, or Linux-only hosts.

bahayonghang Bundle

Use when a Rust or Cargo build is slow and the user wants it diagnosed or sped up: profiling compile times with cargo --timings or -Zself-profile, finding whether the bottleneck is dependencies, codegen/LLVM, linking, or one oversized crate, and applying targeted fixes such as faster linkers (lld, mold, wild), incremental compilation, dev/release profile tuning, workspace splitting, Cranelift, the nightly parallel frontend, or CI caching with sccache. Also for reviewing .cargo/config.toml or Cargo.toml profile settings for build speed. Not for making the compiled program run faster (runtime optimization), general Rust coding or debugging questions, or non-Rust build systems.

citypaul Bundle

Audit an existing repository or multi-module subsystem for evidence-backed architecture improvements, rank bounded candidates, and present them in a visual HTML report with before-and-after diagrams and a top recommendation. Use when the user asks where architecture investment would pay off across a codebase, wants multiple architecture candidates ranked, or needs systemic coupling, shotgun-change, testability, or AI-navigability problems diagnosed. For one named module's responsibility, deepening, splitting, or contract use codebase-design; for a source-tree or package audit use structure-codebase; for an already-selected path whose success is an evidence-backed net-mechanism-reduction claim use reduce-system-complexity. This is audit-and-selection by default.

bahayonghang Bundle

Modify the Beautiful Mermaid live editor itself rather than writing ordinary Mermaid diagrams. Use when the task mentions the Beautiful Mermaid repo, editor.ts, generated editor.html, config panel, themes or dark mode, zoom, PNG/SVG export, sample presets, or renderer wiring. Not for generic Mermaid syntax help.

kmshdev Bundle

SwiftUI component expert for building reusable views, custom modifiers, view compositions, and Liquid Glass integration. Use when creating new SwiftUI views, refactoring UI code, applying design tokens, or building production-ready component libraries for macOS Tahoe (26) and iOS 26.