Conduct rigorous, adversarial code reviews with zero tolerance for mediocrity. Use when users ask to "critically review" my code or a PR, "critique my code", "find issues in my code", or "what's wrong with this code". Identifies security holes, lazy patterns, edge case failures, and bad practices across Python, R, JavaScript/TypeScript, SQL, and front-end code. Scrutinizes error handling, type safety, performance, accessibility, and code quality. Provides structured feedback with severity tiers (Blocking, Required, Suggestions) and specific, actionable recommendations.
Use when building UI with shadcn/ui components, Tailwind CSS layouts, form patterns with react-hook-form and zod, theming, dark mode, sidebar layouts, mobile navigation, or any shadcn component question.
Build and query AST summaries + call graphs for codebases. Use when exploring a project's structure, finding function definitions, tracing call chains, under...
Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Db Explorer concepts, best practices, and implementation patterns.
Use when opening a single-file HTML demo or unbundled static HTML/CSS/JS project in VibePolish, with a connected CDP style provider for WYSIWYG editing and export.
Build playable browser games (2D canvas or 3D Three.js) from natural language, with an automated screenshot verification loop the agent runs before claiming the game works — no unverifiable "should look fine" claims. Persists games in a stable workspace (games/<slug>/, not /tmp), iterates via targeted edits, publishes to https://jerithai.com/games/<slug>/ via the existing nginx + Cloudflare tunnel. Reuses the full 3D pattern library from the original build-game skill and adds 2D canvas, genre-appropriate engine choice, and verify-before-deliver as a hard gate.
Audits Claude Code context window consumption across agents, skills, MCP servers, and rules. Identifies bloat, redundant components, and produces prioritized...
Production-ready Golang tests — table-driven tests, testify suites and mocks, parallel tests, fuzzing, fixtures, goroutine leak detection with goleak, snapshot testing, code coverage, integration tests, idiomatic test naming. Use when writing or reviewing Go tests, choosing a testing approach, setting up Go test CI, or debugging flaky/slow tests. For testify-specific APIs see `samber/cc-skills-golang@golang-stretchr-testify`; for measurement methodology see `samber/cc-skills-golang@golang-benchmark`.
Use when starting a new project from scratch and the user wants the full plan/build/recap/document workflow scaffolded. Creates slim CLAUDE.md, gitignored CL...
Principal-level system architect guiding structured requirements capture, pattern selection, layered design, data architecture, and API standards for scalabl...
Provisions, scales, and operates Amazon EC2 virtual-machine workloads: instance-type selection (Graviton/Arm64, burstable T credits, GPU, instance store vs EBS), launch templates, Auto Scaling groups (scaling policies, instance refresh, mixed instances, Spot, warm pools, lifecycle hooks), IMDSv2, placement groups, Elastic IPs, AMI lifecycle, and Systems Manager fleet operations (Session Manager, Run Command, Patch Manager). Applies to EC2 instance and fleet questions, InsufficientInstanceCapacity, CPU-credit/surplus charges, IMDSv2 401s, instances stuck in Pending:Wait, ASG not replacing unhealthy instances, status-check failures, SSH refused/timed out, or instances missing as SSM managed nodes. For a single secure instance launch, the launching-ec2-instance-with-best-practices skill is more appropriate; for instance profiles, see setting-up-ec2-instance-profiles; for Image Builder, see creating-ec2-image-builder-pipeline. Does NOT cover Lambda, ECS/Fargate, EKS, VPC/ALB/NLB design, or IAM policy authoring.
Clone any live website into a self-contained, dependency-free HTML file with all content, styles, fonts, and images extracted and preserved. Use when asked t...
Delegate coding tasks to Codex, Claude Code, or Pi agents via background process. Use when: (1) building/creating new features or apps, (2) reviewing PRs (sp...
Debug, inspect, and drive any frontend app that has the Harness-FE Vite/Webpack plugin installed. Use this when the user reports a UI bug, asks "why is this...
Use when implementing UI from Figma, Sketch, MasterGo, Pixso, Modao, MockingBot, screenshots, design selections, design tokens, or design-to-code tasks for production frontend components/pages; Chinese triggers include design draft, implementation by design.
