Oleksandr Yusypenko

Cloudflare Wrangler expert for Workers, Pages, R2, D1, KV, deployments, and secrets management

Creates marketing copy using JTBD framework, customer pain points, and generates i18n-ready JSON content

Implements design fixes from review reports using mobile-first approach with live verification

Performs comprehensive UI/UX design review with responsive testing, accessibility checks, and heuristic evaluation

End-to-end test specialist using Playwright for full user flows, responsive layouts, and cross-page navigation

GitHub CLI expert for PRs, issues, Actions workflows, secrets, releases, and repository management

Railway CLI expert for projects, services, deployments, databases, and environment variables

Next.js content-quality specialist. Deep content audit with E-E-A-T, AI-pattern detection (26 phrases + 24 vague words + boosters), humanity/specificity/structure scoring, search intent classification, opportunity scoring, citability assessment, and internal linking audit. Generates rewrite priorities with before/after examples. Runs standalone or as creo-seo Phase 2 delegate.

Next.js SEO + GEO specialist. Full-site audits across 7 phases covering technical SEO, content quality with AI-pattern detection, build validation, live site metrics, AI search readiness (citability, llms.txt, AI crawlers), schema deprecation sweep, and composite scoring. Loads project profile for faster context-aware audits.

Stripe CLI and MCP expert for payments, subscriptions, customers, products, webhooks, and billing

Unit and integration test specialist using Vitest, Jest, and Testing Library for components, hooks, and stores

Analyzes external competitor websites to document UX patterns, identify strengths and weaknesses

Analyzes own application UX flows by combining code reading with live UI testing to identify pain points

LLM generation pipeline expertise covering prompt engineering, structured output validation, queue-based async processing, SSE real-time progress, and multi-mode generation strategies. Covers Vercel AI SDK, LangChain, LangGraph, vector databases, and RAG patterns. Trigger keywords: AI generation, LLM pipeline, prompt engineering, structured output, Zod schema, BullMQ, SSE, RAG, vector database, embeddings.

Marketing content strategist that creates compelling copy using JTBD framework, customer pain points, and competitive positioning. Generates i18n-ready JSON content for landing pages, feature pages, pricing pages, and marketing materials. Trigger keywords: marketing copy, content strategy, landing page copy, feature copy, pricing copy, JTBD content, i18n content.

Execute design fixes from review reports with high-quality code modifications. Implements responsive design corrections, accessibility improvements, component consistency fixes, and visual polish. Trigger keywords: design implement, fix design, implement review, responsive fix, accessibility fix.

Comprehensive UI/UX design review with Playwright. Evaluates responsive design (375-1920px), WCAG AA accessibility, Nielsen's 10 heuristics, component consistency, and visual polish. Trigger keywords: design review, UI review, accessibility audit, responsive check, heuristic evaluation.

Infrastructure management orchestrator for CI/CD pipelines, deployments, and cloud services. Routes to specialized subagents for GitHub, Cloudflare, Railway, and Stripe. Handles pipeline analysis, deployment coordination, troubleshooting, and secret management. Trigger keywords: devops, deploy, infrastructure, GitHub Actions, Cloudflare, Railway, Stripe, CI/CD, secrets, workflow.

Generate optimized image prompts for AI image generation models including DALL-E 3, Midjourney, Stable Diffusion XL, Flux, and others. Creates contextually appropriate, visually compelling prompts based on page content and brand style. Trigger keywords: image prompt, AI image, hero image, marketing image, generate prompt, image generation.

Seven-stage marketing site creation orchestration. Coordinates infrastructure setup, content generation, page components, SEO optimization, design review, localization, and final QA. Delegates to specialized agents for each stage. Trigger keywords: marketing site, marketing website, orchestrate, site creation, landing page site.

GitHub Actions CI/CD pipeline specialist. Writes, debugs, and optimizes workflow YAML. Fixes failing jobs, adds caching, manages Docker builds, configures environments and secrets. Trigger keywords: pipeline, GitHub Actions, workflow, CI/CD, caching, Docker build, matrix, reusable workflow.

Content-focused SEO audit for Next.js apps. Deep dive into E-E-A-T, AI-generated content detection (26 phrases + 24 vague quantifiers), humanity/specificity/structure scoring, search intent detection, opportunity scoring, internal linking audit, and citability-ready rewrite priorities. Complements creo-seo (which covers technical, build, live, schema) by focusing exclusively on content quality. Trigger keywords: content audit, E-E-A-T, AI content detection, humanity score, citability, search intent, content rewrite, internal linking audit.

Next.js SEO + GEO specialist. Full 7-phase audits covering technical SEO, content quality with AI-pattern detection, build validation, live Core Web Vitals, AI search readiness (citability, llms.txt, 14 AI crawlers), schema deprecation sweep, and composite scoring. Auto-builds per-project cached profile for faster repeat audits. Trigger keywords: SEO audit, technical SEO, structured data, meta tags, schema markup, core web vitals, sitemap, hreflang, LLMO, GEO, citability, llms.txt, AI crawlers.

Testing orchestration that routes to unit test and E2E test subagents. Manages test plans, coverage tracking, and coordinates test execution across the full stack. Supports Vitest/Jest for unit tests and Playwright for E2E tests. Trigger keywords: test, unit test, e2e test, end to end, test plan, test coverage, playwright, vitest.

Analyze competitor websites for UX patterns, strengths, and weaknesses. Navigates external URLs, documents UX patterns, evaluates against Nielsen heuristics, and extracts actionable learnings. Trigger keywords: competitor analysis, competitor UX, competitive analysis, benchmark, compare competitors.

Analyze your own application UX flows by combining screenshots, code reading, and live UI testing. Identifies pain points, evaluates Nielsen heuristics, maps user journeys, and proposes simplifications using JTBD framework. Trigger keywords: UX analysis, internal UX, flow analysis, pain points, user journey, heuristic evaluation.