React Best Practices: A Claude Code Skill for Eliminating Performance Bottlenecks React applications have a well-documented tendency to degrade over time. What starts as a clean, performant codebase accumulates sequential data fetches, barrel imports that inflate bundle sizes, and components that re-render on every state change. By the time performance becomes a visible problem — users complaining about sluggish load times, Lighthouse scores tanking, LCP metrics failing Core Web Vitals thresholds — the codebase has often accumulated months of performance debt that’s hard to untangle without a systematic approach. The React Best Practices Claude Code skill addresses this directly. It’s…
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Senior Architect Skill for Claude Code: Design Scalable Systems Without the Guesswork Every senior engineer has felt it — that moment when you’re staring at a blank architecture diagram, a new project requirement in hand, and the weight of every technical decision you’re about to make sitting squarely on your shoulders. Choose the wrong database, miscalculate service boundaries, or ignore dependency coupling early on, and you’re setting up months of painful refactoring for yourself and your team. Architecture decisions are asymmetric. They’re cheap to make and catastrophically expensive to undo. Yet most teams make them in ad-hoc design meetings with…
Senior Backend Skill for Claude Code: Scaffold, Optimize, and Secure at Scale Backend development at scale is a discipline of tradeoffs. You are constantly balancing API design consistency against delivery speed, query performance against code readability, security rigor against developer ergonomics. Senior engineers carry years of hard-won patterns in their heads — knowing when to reach for a GraphQL resolver versus a REST endpoint, how to structure a Postgres migration without locking production tables, or where to place a Redis cache to shave 200ms off a critical path. The problem is that those patterns live in people, not in tools.…
Code Reviewer Skill for Claude Code: Automate Your PR Reviews and Quality Checks Every engineering team has felt the pain of inconsistent code reviews. Senior developers get bottlenecked as the go-to reviewers. Junior developers receive feedback that varies wildly depending on who picks up their PR. Security issues slip through because nobody remembered to check input validation that day. Style nitpicks consume comment threads that should be focused on architecture decisions. The result: slower velocity, technical debt accumulation, and reviewer fatigue. The Code Reviewer skill for Claude Code addresses this directly. It gives you a structured, automated approach to code…
Senior Frontend Skill for Claude Code: Scaffold, Analyze, and Ship Production-Ready React Apps Every senior frontend engineer has lived through the same painful cycle: a new project kicks off, and you spend the first two days not writing product features but instead wiring up TypeScript configs, arguing with ESLint, hand-rolling component boilerplate, and squinting at webpack bundle visualizations trying to figure out why your initial load is 4MB. None of that is the job. The job is building interfaces users actually want to use. The Senior Frontend skill for Claude Code attacks this friction directly. It brings an opinionated, production-grade…
Skill Creator: Build, Test, and Optimize Claude Code Skills with a Meta-Skill Most Claude Code skills are built once and used as-is. They either work, or they don’t. You tweak them manually, run a few prompts by hand, and hope the behavior holds up across edge cases. This ad-hoc process works until it doesn’t — until the skill triggers at the wrong time, produces inconsistent output, or fails silently when the input drifts from what you tested. The Skill Creator addresses this problem systematically. It’s a meta-skill — a skill for building skills — that guides you through intent capture,…
Frontend Design Skill for Claude Code: Ship Interfaces That Don’t Look Like AI Made Them There’s a recognizable aesthetic that’s taken over the web in the last two years. You know it when you see it: purple-to-indigo gradients, Inter or Space Grotesk everywhere, hero sections with a centered headline and a glowing orb, card grids with 16px rounded corners. It’s not ugly — it’s just everywhere. It’s the visual equivalent of Lorem Ipsum, a signal that no one made a real design decision. Most AI-generated frontends fall squarely into this trap. Ask a generic LLM to “build a landing page”…
Command Expert: The Claude Code Agent That Turns CLI Work Into a First-Class Experience If you’ve spent any meaningful time building developer tooling, you know the pattern: someone needs a new CLI command, so they cobble together argument parsing by hand, skip the edge cases because the deadline is tomorrow, ship inconsistent help text, and move on. Three months later, nobody remembers how the command works, the validation is wrong in production, and the next developer to touch it has to reverse-engineer the intent from the implementation. The Command Expert agent exists to break that cycle. It’s a specialized subagent…
Database Admin Agent for Claude Code: Stop Fighting Fires at 3am Database administration is one of those disciplines where the gap between “it’s working” and “it’s working reliably” is enormous. Most developers can spin up a Postgres instance, run migrations, and call it done. But configuring replication lag alerts, testing backup restoration, setting up connection pooling, or writing a disaster recovery runbook with realistic RTO/RPO targets? That’s where hours disappear and corners get cut — usually until a production incident forces the reckoning. The Database Admin agent for Claude Code closes that gap. It’s a specialized agent that brings operational…
iOS Developer Agent for Claude Code: Your Native Swift Expert On Demand iOS development has a steep and unforgiving learning curve. Apple’s ecosystem demands fluency across SwiftUI, UIKit, Core Data, Combine, async/await concurrency, CloudKit, and the Human Interface Guidelines — all while keeping an eye on App Store compliance and Xcode’s quirks. Senior iOS engineers carry this mental model in their heads. The rest of us spend hours hunting through WWDC sessions and developer forums to piece together the right pattern for a given problem. The iOS Developer agent for Claude Code changes that dynamic. Instead of context-switching out of…