duck4nh
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- ▌ Typescript Type Expert 2 · duck4nhAdvanced TypeScript type system specialist for complex generics, conditional types, template literals, type inference, performance optimization, and type-level programming. Use for intricate type system challenges, recursive types, brand types, utility type authoring, and type performance issues. Includes comprehensive coverage of 18 advanced type system error patterns.
- ▌ Refactoring Expert 2 · duck4nhExpert in systematic code refactoring, code smell detection, and structural optimization. Use PROACTIVELY when encountering duplicated code, long methods, complex conditionals, or any code quality issues. Detects code smells and applies proven refactoring techniques without changing external behavior.
- ▌ Accessibility Expert 2 · duck4nhWCAG 2.1/2.2 compliance, WAI-ARIA implementation, screen reader optimization, keyboard navigation, and accessibility testing expert. Use PROACTIVELY for accessibility violations, ARIA errors, keyboard navigation issues, screen reader compatibility problems, or accessibility testing automation needs.
- ▌ Documentation Expert 2 · duck4nhExpert in documentation structure, cohesion, flow, audience targeting, and information architecture. Use PROACTIVELY for documentation quality issues, content organization, duplication, navigation problems, or readability concerns. Detects documentation anti-patterns and optimizes for user experience.
- ▌ Github Actions Expert 2 · duck4nhGitHub Actions CI/CD pipeline optimization, workflow automation, custom actions development, and security best practices for scalable software delivery
- ▌ Oracle 2 · duck4nhUse this agent for audits, debugging nasty bugs, deep research, getting second opinions on approaches, reviewing commits for correctness, or analyzing complex problems. Invoke when you need advanced reasoning about difficult issues. Use PROACTIVELY when encountering complex bugs, architectural decisions, or when a thorough review would prevent future issues.
- ▌ CLI Expert 2 · duck4nhExpert in building npm package CLIs with Unix philosophy, automatic project root detection, argument parsing, interactive/non-interactive modes, and CLI library ecosystems. Use PROACTIVELY for CLI tool development, npm package creation, command-line interface design, and Unix-style tool implementation.
- ▌ CSS Styling Expert 2 · duck4nhCSS architecture and styling expert with deep knowledge of modern CSS features, responsive design, CSS-in-JS optimization, performance, accessibility, and design systems. Use PROACTIVELY for CSS layout issues, styling architecture, responsive design problems, CSS-in-JS performance, theme implementation, cross-browser compatibility, and design system development. If a specialized expert is better fit, I will recommend switching and stop.
- ▌ Git Expert 2 · duck4nhGit expert with deep knowledge of merge conflicts, branching strategies, repository recovery, performance optimization, and security patterns. Use PROACTIVELY for any Git workflow issues including complex merge conflicts, history rewriting, collaboration patterns, and repository management. If a specialized expert is a better fit, I will recommend switching and stop.
- ▌ Jest Testing Expert 2 · duck4nhExpert in Jest testing framework, advanced mocking strategies, snapshot testing, async patterns, TypeScript integration, and performance optimization
- ▌ Vite Expert 2 · duck4nhVite build optimization expert with deep knowledge of ESM-first development, HMR optimization, plugin ecosystem, production builds, library mode, and SSR configuration. Use PROACTIVELY for any Vite bundling issues including dev server performance, build optimization, plugin development, and modern ESM patterns. If a specialized expert is a better fit, I will recommend switching and stop.
- ▌ AI Sdk Expert 2 · duck4nhExpert in Vercel AI SDK v5 handling streaming, model integration, tool calling, hooks, state management, edge runtime, prompt engineering, and production patterns. Use PROACTIVELY for any AI SDK implementation, streaming issues, provider integration, or AI application architecture. Detects project setup and adapts approach.
- ▌ Devops Expert 2 · duck4nhDevOps and Infrastructure expert with comprehensive knowledge of CI/CD pipelines, containerization, orchestration, infrastructure as code, monitoring, security, and performance optimization. Use PROACTIVELY for any DevOps, deployment, infrastructure, or operational issues. If a specialized expert is a better fit, I will recommend switching and stop.
- ▌ UI UX Pro Max 2 · duck4nhUI/UX design intelligence. 50 styles, 21 palettes, 50 font pairings, 20 charts, 9 stacks (React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind, shadcn/ui). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, check UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, mobile app, .html, .tsx, .vue, .svelte. Elements: button, modal, navbar, sidebar, card, table, form, chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, flat design. Topics: color palette, accessibility, animation, layout, typography, font pairing, spacing, hover, shadow, gradient.
- ▌ Vitest Testing Expert 2 · duck4nhVitest testing framework expert for Vite integration, Jest migration, browser mode testing, and performance optimization
- ▌ Testing Expert 2 · duck4nhTesting expert with comprehensive knowledge of test structure, mocking strategies, async testing, coverage analysis, and cross-framework debugging. Use PROACTIVELY for test reliability, flaky test debugging, framework migration, and testing architecture decisions. Covers Jest, Vitest, Playwright, and Testing Library.
- ▌ Webpack Expert 2 · duck4nhWebpack build optimization expert with deep knowledge of configuration patterns, bundle analysis, code splitting, module federation, performance optimization, and plugin/loader ecosystem. Use PROACTIVELY for any Webpack bundling issues including complex optimizations, build performance, custom plugins/loaders, and modern architecture patterns. If a specialized expert is a better fit, I will recommend switching and stop.
- ▌ Research Expert 2 · duck4nhSpecialized research expert for parallel information gathering. Use for focused research tasks with clear objectives and structured output requirements.
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- ▌ Mode QA 2 · duck4nhTiered quality assurance mode for contract-based acceptance and release readiness.
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- ▌ Mode Build 2 · duck4nhBuild execution mode for implementing approved blueprint/contract without architectural improvisation.
- ▌ Mode Debug 2 · duck4nhStructured debug mode focused on root-cause confirmation and controlled fixes.
- ▌ Mode Refine 2 · duck4nhPost-build refinement mode for small copy/style/content adjustments without architecture changes.
- ▌ Mode Vision 2 · duck4nhVision-first mode that proposes default architecture before collecting detailed context.
- ▌ Mode Contract 2 · duck4nhScope lock mode that formalizes in-scope, out-of-scope, stack lock, and done criteria.
- ▌ Quality Gates 2 · duck4nhUnified quality gate skill for pre-delivery checklist, security checks, testing strategy, and handover readiness.
- ▌ Core Lifecycle 2 · duck4nhEnforces the six-step lifecycle with mandatory checkpoints and transition criteria.
- ▌ Mode Blueprint 2 · duck4nhConverts approved vision+context into detailed technical blueprint and approval checkpoint.
- ▌ Core Governance 2 · duck4nhGovernance model, gatekeeping policy, and definition-of-done for Vibecode + .opencode.
- ▌ Mode Investigate 2 · duck4nhInvestigation-first mode for uncertain issues, evidence collection, and hypothesis ranking.
- ▌ Template Saas App 2 · duck4nhSaaS application baseline with auth, dashboard shell, feature modules, and scope boundaries.
- ▌ Template Blog Docs 2 · duck4nhContent-first template for blog and docs with readable typography and navigable structure.
- ▌ Template Dashboard 2 · duck4nhDashboard template with KPI cards, charts, tables, filters, and responsive data layouts.
- ▌ Template Portfolio 2 · duck4nhPortfolio template for personal or studio presence with project storytelling focus.
- ▌ Template Landing Page 2 · duck4nhDefault conversion-oriented landing page structure, copy zones, and stack choices.
- ▌ Mode QA · duck4nhTiered quality assurance mode for contract-based acceptance and release readiness.
- ▌ Mode Refine · duck4nhPost-build refinement mode for small copy/style/content adjustments without architecture changes.
- ▌ Mode Vision · duck4nhVision-first mode that proposes default architecture before collecting detailed context.
- ▌ Mode Contract · duck4nhScope lock mode that formalizes in-scope, out-of-scope, stack lock, and done criteria.
- ▌ Quality Gates · duck4nhUnified quality gate skill for pre-delivery checklist, security checks, testing strategy, and handover readiness.
- ▌ Core Lifecycle · duck4nhEnforces the six-step lifecycle with mandatory checkpoints and transition criteria.
- ▌ Mode Blueprint · duck4nhConverts approved vision+context into detailed technical blueprint and approval checkpoint.
- ▌ Core Governance · duck4nhGovernance model, gatekeeping policy, and definition-of-done for Vibecode + .opencode.
- ▌ Mode Investigate · duck4nhInvestigation-first mode for uncertain issues, evidence collection, and hypothesis ranking.
- ▌ Template Saas App · duck4nhSaaS application baseline with auth, dashboard shell, feature modules, and scope boundaries.
- ▌ Template Blog Docs · duck4nhContent-first template for blog and docs with readable typography and navigable structure.
- ▌ Template Dashboard · duck4nhDashboard template with KPI cards, charts, tables, filters, and responsive data layouts.
- ▌ Template Portfolio · duck4nhPortfolio template for personal or studio presence with project storytelling focus.
- ▌ Template Landing Page · duck4nhDefault conversion-oriented landing page structure, copy zones, and stack choices.
- ▌ Oracle · duck4nhUse this agent for audits, debugging nasty bugs, deep research, getting second opinions on approaches, reviewing commits for correctness, or analyzing complex problems. Invoke when you need advanced reasoning about difficult issues. Use PROACTIVELY when encountering complex bugs, architectural decisions, or when a thorough review would prevent future issues.
- ▌ CLI Expert · duck4nhExpert in building npm package CLIs with Unix philosophy, automatic project root detection, argument parsing, interactive/non-interactive modes, and CLI library ecosystems. Use PROACTIVELY for CLI tool development, npm package creation, command-line interface design, and Unix-style tool implementation.
- ▌ CSS Styling Expert · duck4nhCSS architecture and styling expert with deep knowledge of modern CSS features, responsive design, CSS-in-JS optimization, performance, accessibility, and design systems. Use PROACTIVELY for CSS layout issues, styling architecture, responsive design problems, CSS-in-JS performance, theme implementation, cross-browser compatibility, and design system development. If a specialized expert is better fit, I will recommend switching and stop.
- ▌ Git Expert · duck4nhGit expert with deep knowledge of merge conflicts, branching strategies, repository recovery, performance optimization, and security patterns. Use PROACTIVELY for any Git workflow issues including complex merge conflicts, history rewriting, collaboration patterns, and repository management. If a specialized expert is a better fit, I will recommend switching and stop.
- ▌ Auth Expert · duck4nhAuthentication and authorization expert specializing in JWT, OAuth 2.0, session management, RBAC, password security. Use for auth implementation, token management, or security issues.
- ▌ Code Review · duck4nhProvides comprehensive code review covering 6 focused aspects - architecture & design, code quality, security & dependencies, performance & scalability, testing coverage, and documentation & API design. Use this skill for deep analysis with actionable feedback after significant code changes.
- ▌ Jest Testing Expert · duck4nhExpert in Jest testing framework, advanced mocking strategies, snapshot testing, async patterns, TypeScript integration, and performance optimization
- ▌ Vite Expert · duck4nhVite build optimization expert with deep knowledge of ESM-first development, HMR optimization, plugin ecosystem, production builds, library mode, and SSR configuration. Use PROACTIVELY for any Vite bundling issues including dev server performance, build optimization, plugin development, and modern ESM patterns. If a specialized expert is a better fit, I will recommend switching and stop.
- ▌ Mode Xray · duck4nhHandover protocol for codebase analysis and documentation. Use for project handover, upgrade planning, developer onboarding, or archiving. Creates comprehensive documentation including PROJECT_XRAY.md with architecture, components, API reference, and troubleshooting.
- ▌ Mode Exploit · duck4nhExploit development workflow. Use when: write exploit, PoC, payload, shellcode, bypass, buffer overflow, RCE, reverse shell.
- ▌ Mode Pentest · duck4nhPentest workflow and methodology. Use when: pentest, security assessment, find vulnerabilities, test security, bug bounty, security audit, scan.
- ▌ React Expert · duck4nhProvides React 18/19 expertise including hooks, component patterns, performance optimization, state management, and Server Components. Use this skill for React component issues, hook errors, re-rendering problems, or state management challenges.
- ▌ Redis Expert · duck4nhRedis expert. Caching strategies, session storage, rate limiting, pub/sub. Use for caching implementation and Redis configuration.
- ▌ Mode Build · duck4nhBuild mode for creating new features, components, or modules. Use when user requests creating new code. Follows structured process: confirm scope, propose structure, code in order (Types -> Logic -> UI), run checklist.
- ▌ Mode Debug · duck4nhDebug mode for fixing bugs, errors, and crashes. Use when user reports bugs or errors that need fixing. Follows 5W1H approach: gather info, reproduce, analyze root cause, fix, and prevent recurrence.
- ▌ Mode Learn · duck4nhLearn mode for explaining code, concepts, and architecture. Use when user asks to explain how things work, understand concepts, or learn about code patterns. Provides explanations from simple to complex with examples and analogies.
- ▌ AI Sdk Expert · duck4nhExpert in Vercel AI SDK v5 handling streaming, model integration, tool calling, hooks, state management, edge runtime, prompt engineering, and production patterns. Use PROACTIVELY for any AI SDK implementation, streaming issues, provider integration, or AI application architecture. Detects project setup and adapts approach.
- ▌ Devops Expert · duck4nhDevOps and Infrastructure expert with comprehensive knowledge of CI/CD pipelines, containerization, orchestration, infrastructure as code, monitoring, security, and performance optimization. Use PROACTIVELY for any DevOps, deployment, infrastructure, or operational issues. If a specialized expert is a better fit, I will recommend switching and stop.
- ▌ Mode Tool Dev · duck4nhSecurity tool development workflow. Use when: write script, automate task, CLI tool, scanner, fuzzer, utility, automation.
- ▌ Nodejs Expert · duck4nhNode.js runtime and ecosystem expert with deep knowledge of async patterns, module systems, performance optimization, filesystem operations, process management, and networking. Use this skill for event loop debugging, memory leaks, promise handling, module resolution, and HTTP server issues.
- ▌ Triage Expert · duck4nhSpecializes in context gathering, initial problem diagnosis, and routing issues to appropriate domain experts. Use this skill when encountering errors, performance issues, or unexpected behavior before engaging specialized experts.
- ▌ UI UX Pro Max · duck4nhUI/UX design intelligence. 50 styles, 21 palettes, 50 font pairings, 20 charts, 9 stacks (React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind, shadcn/ui). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, check UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, mobile app, .html, .tsx, .vue, .svelte. Elements: button, modal, navbar, sidebar, card, table, form, chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, flat design. Topics: color palette, accessibility, animation, layout, typography, font pairing, spacing, hover, shadow, gradient.
- ▌ Vitest Testing Expert · duck4nhVitest testing framework expert for Vite integration, Jest migration, browser mode testing, and performance optimization
- ▌ Mode Review · duck4nhReview mode for code review, security audit, and best practices check. Use when user asks for code review or quality assessment. Evaluates code quality, identifies issues by severity, and suggests improvements with positive feedback.
- ▌ Pentest Expert · duck4nhPenetration testing methodology expert. OWASP, PTES, reconnaissance, scanning, exploitation, reporting. Use for security assessments.
- ▌ Testing Expert · duck4nhTesting expert with comprehensive knowledge of test structure, mocking strategies, async testing, coverage analysis, and cross-framework debugging. Use PROACTIVELY for test reliability, flaky test debugging, framework migration, and testing architecture decisions. Covers Jest, Vitest, Playwright, and Testing Library.
- ▌ Webpack Expert · duck4nhWebpack build optimization expert with deep knowledge of configuration patterns, bundle analysis, code splitting, module federation, performance optimization, and plugin/loader ecosystem. Use PROACTIVELY for any Webpack bundling issues including complex optimizations, build performance, custom plugins/loaders, and modern architecture patterns. If a specialized expert is a better fit, I will recommend switching and stop.
- ▌ Mode Migrate · duck4nhMigrate mode for upgrading dependencies, migrating to new versions or stacks. Use when user requests version upgrades or stack migrations. Creates detailed migration plan with breaking changes, step-by-step execution, and rollback plan.
- ▌ Bash Automation · duck4nhBash scripting for security automation. One-liners, enumeration, post-exploitation. Use for quick scripts and automation tasks.
- ▌ Database Expert · duck4nhDatabase performance optimization, schema design, query analysis, and connection management across PostgreSQL, MySQL, MongoDB, and SQLite with ORM integration. Use this skill for queries, indexes, connection pooling, transactions, and database architecture decisions.
- ▌ Postgres Expert · duck4nhPostgreSQL query optimization, JSONB operations, advanced indexing strategies, partitioning, connection management, and database administration. Use this skill for PostgreSQL-specific optimizations, performance tuning, replication setup, and PgBouncer configuration.
- ▌ Research Expert · duck4nhSpecialized research expert for parallel information gathering. Use for focused research tasks with clear objectives and structured output requirements.
- ▌ REST API Expert · duck4nhREST API design and development expert specializing in endpoint design, HTTP semantics, versioning, error handling, pagination, and OpenAPI documentation. Use PROACTIVELY for API architecture decisions, endpoint design issues, HTTP status code selection, or API documentation needs.
- ▌ Typescript Type Expert · duck4nhAdvanced TypeScript type system specialist for complex generics, conditional types, template literals, type inference, performance optimization, and type-level programming. Use for intricate type system challenges, recursive types, brand types, utility type authoring, and type performance issues. Includes comprehensive coverage of 18 advanced type system error patterns.
- ▌ Docker Expert · duck4nhDocker containerization expert with deep knowledge of multi-stage builds, image optimization, container security, Docker Compose orchestration, and production deployment patterns. Use PROACTIVELY for Dockerfile optimization, container issues, image size problems, security hardening, networking, and orchestration challenges.
- ▌ Mode Optimize · duck4nhOptimize mode for refactoring, performance improvement, and code cleanup. Use when user requests optimization or identifies slow code. Measures baseline, identifies bottlenecks, improves without changing behavior, compares before/after.
- ▌ Nestjs Expert · duck4nhNest.js framework expert specializing in module architecture, dependency injection, middleware, guards, interceptors, testing with Jest/Supertest, TypeORM/Mongoose integration, and Passport.js authentication. Use PROACTIVELY for any Nest.js application issues including architecture decisions, testing strategies, performance optimization, or debugging complex dependency injection problems. If a specialized expert is a better fit, I will recommend switching and stop.
- ▌ Monitoring Expert · duck4nhMonitoring and observability expert. Logging, metrics, error tracking, health checks. Use for production monitoring setup.
- ▌ Playwright Expert · duck4nhPlaywright E2E testing expert for browser automation, cross-browser testing, visual regression, network interception, and CI integration. Use for E2E test setup, flaky tests, or browser automation challenges.
- ▌ React Performance · duck4nhReact performance optimization specialist. Expert in DevTools Profiler, memoization, Core Web Vitals, bundle optimization, and virtualization. Use this skill for performance bottlenecks, slow renders, large bundles, or memory issues in React applications.
- ▌ Mode Consulting · duck4nhConsulting mode for comparing options and making recommendations. Use when user asks for opinions, compares approaches, or requests solutions before coding. Provides 2-3 options with trade-offs and waits for confirmation.
- ▌ Request Handler · duck4nhFull-Stack Engineer request handler workflow. Use when receiving any user request to properly classify tasks (CONSULT/BUILD/DEBUG/OPTIMIZE) and execute the appropriate workflow with pre-delivery checklist.
- ▌ Exploit Dev Expert · duck4nhExploit development expert. Buffer overflow, shellcode, ROP, format strings, binary exploitation. Use for exploit writing and PoC development.
- ▌ Refactoring Expert · duck4nhExpert in systematic code refactoring, code smell detection, and structural optimization. Use PROACTIVELY when encountering duplicated code, long methods, complex conditionals, or any code quality issues. Detects code smells and applies proven refactoring techniques without changing external behavior.
- ▌ Linux Server Expert · duck4nhLinux server administration expert. Ubuntu/Debian, Nginx, Apache, SSL, firewall, systemd, server hardening. Use for server setup and config.