skills

Deep dive into codebase architecture with text explanations. Use when the user says: "explain the architecture", "how does X work", "refresh my memory", "deep dive into", "explain this system", "I forgot how X works", "walk me through".

Node.js/Hono backend development with native-first approach. Also use when the user mentions 'create an API,' 'add an endpoint,' 'build a REST API,' 'database schema,' 'server-side,' 'middleware,' 'route handler,' or 'backend logic.' Use this even if the user just says 'I need an API for...' or 'add a POST route.'

Reduce code complexity, eliminate dead code, consolidate duplicate logic. Also use when the user mentions 'dead code,' 'unused functions,' 'duplicated logic,' 'too complex,' 'simplify this,' 'consolidate,' 'reduce bundle size,' 'clean up,' or 'refactor for maintainability.' Use this even if the user just says 'this feels bloated' or 'there must be dead code in here.'

Systematic error investigation and troubleshooting for React and Node.js. Also use when the user mentions 'error,' 'bug,' 'broken,' 'not working,' 'crash,' 'stack trace,' 'console error,' 'white screen,' 'infinite loop,' 'network error,' or '500 error.' Use this even if the user just says 'something is wrong' or 'it broke.'

Railway platform deployment with optimal configuration and troubleshooting. Also use when the user mentions 'deploy,' 'railway,' 'push to production,' 'environment variables,' 'deployment failed,' 'build error,' 'railway logs,' 'custom domain,' or 'database provisioning.' Use this even if the user just says 'ship it' or 'get it live.'

Minimalist design systems inspired by Vercel and shadcn/ui. Also use when the user mentions 'design system,' 'logo,' 'landing page design,' 'UI design,' 'visual direction,' 'color palette,' 'typography,' 'component design,' 'dark mode design,' or 'make it look like Vercel.' Use this even if the user just says 'design this' or 'it needs a visual refresh.'

API documentation writing in Stripe's style with complete examples. Also use when the user mentions 'document this,' 'API docs,' 'add examples,' 'endpoint documentation,' 'request/response examples,' 'README,' or 'how to use this.' Use this even if the user just says 'this needs docs' or 'document the API.'

React 19 + Tailwind CSS v4 + Vite 7.1 frontend development. Also use when the user mentions 'build a component,' 'add a page,' 'fix the UI,' 'responsive layout,' 'form validation,' 'dark mode,' 'styling,' 'Tailwind,' 'shadcn,' or 'user interface.' Use this even if the user just says 'make it look better' or 'add a button that...'

Challenge decisions with direct counter-arguments and expose trade-offs. Also use when the user mentions 'should I,' 'is this a good idea,' 'what could go wrong,' 'challenge this,' 'devil's advocate,' 'stress test,' 'trade-offs,' or 'am I overengineering.' Use this even if the user just says 'talk me out of this' or 'what am I missing.'

Code review including refactoring, performance optimization, and best practices. Also use when the user mentions 'review this,' 'code quality,' 'refactor,' 'too slow,' 're-renders,' 'duplicated code,' 'clean up,' 'best practices,' 'accessibility audit,' or 'performance issues.' Use this even if the user just says 'can you review this?' or 'this code feels messy.'

OWASP Top 10 vulnerability detection and secure coding practices. Also use when the user mentions 'security audit,' 'vulnerability,' 'XSS,' 'SQL injection,' 'authentication,' 'authorization,' 'CSRF,' 'secrets,' 'hardcoded credentials,' 'input validation,' or 'penetration test.' Use this even if the user just says 'is this secure?' or 'check for vulnerabilities.'

TDD - Make Tests Pass

Count Claude Code tokens and estimate API cost from local JSONL transcripts. Use when the user asks about usage, token counts, API cost, or billing stats.

Cancel active loop

Start an autonomous loop — re-feeds the same prompt until done

Review git diff — summarize staged and unstaged changes

Check domain name availability across 12 TLDs via direct WHOIS/RDAP lookups. No external service needed. Use when the user asks about domain availability, wants to find a domain name, or mentions registering a domain.