> browse/registry

> sql-optimization

Universal SQL performance optimization assistant for comprehensive query tuning, indexing strategies, and database performance analysis across all SQL databases (MySQL, PostgreSQL, SQL Server, Oracle). Provides execution plan analysis, pagination optimization, batch operations, and performance monitoring guidance.

> claude-monitor

Monitor de performance do Claude Code e sistema local. Diagnostica lentidao, mede CPU/RAM/disco, verifica API latency e gera relatorios de saude do sistema.

> agent-evaluation

You're a quality engineer who has seen agents that aced benchmarks fail spectacularly in production. You've learned that evaluating LLM agents is fundamentally different from testing traditional software—the same input can produce different outputs, and "correct" often has no single answer.

> apify-brand-reputation-monitoring

Scrape reviews, ratings, and brand mentions from multiple platforms using Apify Actors.

> constant-time-testing

Guides developers through detecting and preventing side-channel attacks, timing leaks, and constant-time violations in cryptographic implementations. Covers techniques for identifying timing side channels in crypto code, including cache-timing attacks, secret-dependent branching, and microarchitectural leakage. Applies formal verification, statistical analysis (dudect), and dynamic tracing (timecop) to audit crypto primitives for timing vulnerabilities and ensure constant-time execution.

> vscode-port-monitor-config

This skill should be used when configuring VS Code Port Monitor extension for development server monitoring. Use when the user asks to "set up port monitoring for Vite", "monitor my dev server ports", "configure port monitor for Next.js", "track which ports are running", "set up multi-port monitoring", "monitor frontend and backend ports", or "check port status in VS Code". Provides ready-to-use configuration templates for Vite (5173), Next.js (3000), and microservices architectures with trouble

> k8s-cilium

Cilium and Hubble network observability for Kubernetes. Use when managing network policies, observing traffic flows, or troubleshooting connectivity with eBPF-based networking.

> k8s-service-mesh

Manage Istio service mesh for traffic management, security, and observability. Use for traffic shifting, canary releases, mTLS, and service mesh troubleshooting.

> nginx-c-module-debug

nginx C module debugging guidelines based on the official nginx development guide. This skill should be used when debugging nginx C module crashes, memory bugs, request flow issues, or production problems. Triggers on tasks involving segfault analysis, coredump debugging, GDB inspection, memory leak detection, request phase tracing, AddressSanitizer setup, or nginx module troubleshooting.

> 12-factor-app

The Twelve-Factor App methodology for building scalable, maintainable cloud-native applications. Use when designing backend services, APIs, microservices, or any software-as-a-service application. Triggers on deployment patterns, configuration management, process architecture, logging, and infrastructure decisions.

> domain-architect

Discovers business domains in a Swift codebase by tracing what users can DO — not by reading folder names or architecture docs. Maps each domain's vertical slice (Types → Config → Repo → Service → Runtime → UI), identifies providers (external SDK bridges), and separates cross-cutting concerns. Produces a domain map that drives all downstream decisions: folder structure, SPM targets, enforcement specs, migration plans. Use this skill whenever the user wants to understand their codebase domains, f

> nginx-c-module-perf

nginx C module performance optimization and reliability guidelines based on the official nginx development guide. This skill should be used when optimizing nginx C modules for throughput, latency, memory efficiency, and operational resilience. Triggers on tasks involving buffer optimization, connection tuning, shared memory contention, error recovery, timeout strategy, caching implementation, worker process tuning, or logging performance in nginx C modules.

> ue-testing-debugging

Use when writing automation tests, functional tests, or any test in Unreal Engine. Also use when the user asks about "UE_LOG", logging, log categories, assertion, check, ensure, verify, DrawDebug, debug draw, console command, profiling, Unreal Insights, stat commands, or debugging techniques. See ue-module-build-system for test module setup, and ue-cpp-foundations for general C++ logging patterns.

> go-logging

Use when choosing a logging approach, configuring slog, writing structured log statements, or deciding log levels in Go. Also use when setting up production logging, adding request-scoped context to logs, or migrating from log to slog, even if the user doesn't explicitly mention logging. Does not cover error handling strategy (see go-error-handling).

> apollo-router

Version-aware guide for configuring and running Apollo Router for federated GraphQL supergraphs. Generates correct YAML for both Router v1.x and v2.x. Use this skill when: (1) setting up Apollo Router to run a supergraph, (2) configuring routing, headers, or CORS, (3) implementing custom plugins (Rhai scripts or coprocessors), (4) configuring telemetry (tracing, metrics, logging), (5) troubleshooting Router performance or connectivity issues.

> minecraft-server-admin

Set up, configure, and optimize a Minecraft Java Edition server for 1.21.x. Covers Paper server installation and startup (Aikar's JVM flags), server.properties reference, paper-global.yml and paper-world-defaults.yml configuration for performance, spigot.yml and bukkit.yml tuning, chunk loading/unloading optimization, player count and TPS monitoring, plugin management best practices, world management (pre-generation with Chunky), backup strategies, Docker/Pterodactyl deployment, Velocity proxy s

> alicloud-cdn

Manage Alibaba Cloud CDN using the @alicloud/cdn20180510 TypeScript SDK. Use when working with CDN domain acceleration, domain configuration, SSL certificates, cache refresh/prefetch, real-time monitoring, traffic analysis, log management, usage/billing, IP tools, Function Compute triggers, delivery tasks, and resource tagging. Covers all 168 APIs of the CDN 20180510 version.

> alicloud-rds

Manage Alibaba Cloud RDS using the @alicloud/rds20140815 TypeScript SDK. Use when working with relational database instances (MySQL, PostgreSQL, SQL Server, MariaDB), accounts, databases, backups, security, monitoring, parameters, read-only instances, database proxy, migration, cross-region DR, PostgreSQL extensions, RDS Custom instances, and resource tagging. Covers all 398 APIs of the RDS 20140815 version.

> alicloud-redis

Manage Alibaba Cloud Redis (Tair / R-KVStore) using the @alicloud/r-kvstore20150101 TypeScript SDK. Use when working with Redis or Tair instances, accounts, backups, security (whitelist/SSL/TDE/audit), parameters, monitoring, cluster scaling, direct connection, Tair Custom instances, and resource tagging. Covers all 157 APIs of the R-KVStore 20150101 version.

> mastering-github-cli

GitHub CLI (gh) command reference for repository search, code discovery, CI/CD monitoring, workflow authoring, and automation. Triggers on "gh" commands, "github cli", searching repos for files/directories (.skilz, .cursor, .codex, Dockerfile), monitoring GitHub Actions workflows, checking PR CI status, downloading artifacts, creating PRs/issues/repos from command line, triggering workflows, forking repos, batch operations, "write a workflow", "github actions", "CI/CD pipeline", "workflow yaml",