Performance
Performance profiling and optimization
swift-patterns
by efremidze
Review, refactor, or build SwiftUI features with correct state management, modern API usage, optimal view composition, navigation patterns, performance optimization, and testing best practices.
Brand Partnership Negotiator
by jmsktm
Negotiate and structure brand partnerships and co-marketing deals
skills
by ThePrimeagen
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maestro
by xenitV1
Use when you need to act as an Elite Software Architect (Maestro) to manage complex repositories. It enforces a "Why over How" philosophy, maintains a persistent project memory (Brain), and orchestrates specialized sub-skills through a Plan-Act-Verify lifecycle.
cuda
by technillogue
"CUDA kernel development, debugging, and performance optimization for Claude Code. Use when writing, debugging, or optimizing CUDA code, GPU kernels, or parallel algorithms. Covers non-interactive profiling with nsys/ncu, debugging with cuda-gdb/compute-sanitizer, binary inspection with cuobjdump, and performance analysis workflows. Triggers on CUDA, GPU programming, kernel optimization, nsys, ncu, cuda-gdb, compute-sanitizer, PTX, GPU profiling, parallel performance."
tanstack-virtual
by fellipeutaka
TanStack Virtual headless virtualization for React. Use when rendering large lists (100+ items), implementing virtual scroll, building infinite scroll feeds, virtualizing grids or tables, using window-level scrolling, or implementing masonry/lane layouts with @tanstack/react-virtual. Triggers on: useVirtualizer, useWindowVirtualizer, virtual list, virtual scroll, list virtualization.
persona-integration-tester
by cuioss
Integration-testing persona — the work identity for cross-component and end-to-end test authoring
benchmark-framework
by kimasplund
Rigorous A/B/C testing framework for empirically evaluating reasoning patterns. Use when you need data-driven pattern selection, want to quantify trade-offs between patterns, or need to validate claims about which cognitive methodology performs best. Enables scientific measurement of quality, cost, and time trade-offs across ToT, BoT, SRC, HE, AR, DR, AT, RTR, and NDF patterns.
persona-documenter
by cuioss
Documentation persona — the work identity for authoring and maintaining project documentation
persona-auditor
by cuioss
Audit persona that composes other personas as evaluation lenses across a wide scope
tavus-cvi-knowledge
by Tavus-Engineering
Add knowledge bases and persistent memories to Tavus CVI personas. Use when uploading documents for RAG, enabling personas to reference PDFs/websites, persisting context across conversations, or building personas that remember users.
nginx
by fellipeutaka
Nginx web server and reverse proxy expert: configuration, reverse proxying, load balancing, SSL/TLS termination, rate limiting, caching, gzip compression, WebSocket proxying, and security hardening. Use for nginx.conf creation/review, performance tuning, HTTPS setup, upstream configuration, and troubleshooting.
persona-implementer
by cuioss
Production-code implementation persona — the work identity for building and modifying production code
crushable-wingman
by yxp934
Dating wingman and texting coach. Use when the user asks for reply suggestions, message rewrites, DMs/openers, chat analysis, relationship health analysis, or date ideas, and when they provide chat screenshots to extract and structure before coaching. Prioritize context-first coaching, a concise case file, and 2-4 clarifying questions when information is missing. Reply in the user's language.
skStats Development & Maintenance Guide
by ericsk
Sandboxing: If App Sandbox is enabled, ensure com.apple.security.network.client and hardware access entitlements are correctly set in .entitlements or Info.plist.
k8s-troubleshooter
by ahmedasmar
Systematic Kubernetes troubleshooting and incident response. Use when diagnosing pod failures, cluster issues, performance problems, networking issues, storage failures, or responding to production incidents. Provides diagnostic workflows, automated health checks, and comprehensive remediation guidance for common Kubernetes problems.
debugging-methodology
by webdevtodayjason
Scientific debugging methodology including hypothesis-driven debugging, bug reproduction, binary search debugging, stack trace analysis, logging strategies, and root cause analysis. Use when debugging errors, analyzing stack traces, investigating bugs, or troubleshooting performance issues.
故人 (Guren)
by chenxing9200
故人 Skill - 以逝者的口吻继续陪伴，基于聊天记录重建人格与记忆
make-wpf-behavior
by christian289
"Generates WPF Behavior<T> classes using Microsoft.Xaml.Behaviors.Wpf. Usage: /wpf-dev-pack:make-wpf-behavior <BehaviorName> <TargetType>"
mplusautomation-guide
by lzhs1995
Use when running or reproducing Mplus models from R with MplusAutomation, including APIM, mediation, moderation, conditional mediation, [[init]] templates, ClaudeR/RStudio execution, multiple imputation, batch recovery, diagnostics, and manuscript tables.
team-coordination
by spjoshis
Master team coordination with leadership, communication, conflict resolution, and collaboration techniques for high-performing teams.
performance-testing
by spjoshis
Master performance testing with load testing, stress testing, JMeter, k6, and performance benchmarking.
multi-agent-patterns
by Svenja-dev
Design multi-agent architectures for complex tasks. Use when single-agent context limits are exceeded, when tasks decompose naturally into subtasks, or when specializing agents improves quality.
postgresql-rails-analyzer
by el-feo
Comprehensive PostgreSQL configuration and usage analysis for Rails applications. Use when Claude Code needs to analyze a Rails codebase for database performance issues, optimization opportunities, or best practice violations. Detects N+1 queries, missing indexes, suboptimal database configurations, anti-patterns, and provides actionable recommendations. Ideal for performance audits, optimization tasks, or when users ask to "analyze the database", "check for N+1 queries", "optimize PostgreSQL", "review database performance", or "suggest database improvements".