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Found 300 Skills
Expert guidance for writing efficient, correct Active Record queries in Rails 8.1. Use when writing queries, finding records, building scopes, fixing N+1 queries, using where clauses, includes, joins, eager loading, filtering, searching, plucking data, selecting records, or optimizing database queries. Covers where, find, scopes, includes vs preload vs eager_load, joins, pluck, select, calculations, batching, and query anti-patterns.
Configure iptables, nftables, and cloud firewalls. Implement network segmentation and traffic filtering. Use when securing network perimeters or implementing security zones.
Use Yahoo Finance CLI for stock and ETF quotes, charts, fundamentals, options chains, symbol search, trending tickers, local watchlists, portfolio lots, and market digests. Use when the user asks about a ticker, portfolio performance, option filtering, market movers, or wants Yahoo Finance data in a terminal or agent-friendly format.
Inspects PostHog Web analytics Live tab data — current users online, last-30-minutes pageviews, top pages, referrers, devices, browsers, countries, bot traffic, and the per-minute bot/users charts. Use when the user asks "who is on my site right now?", "what is happening live?", "what bots are crawling me?", asks about the "live tab" / "live dashboard", wants live numbers (last 30 min), or wants help filtering or drilling into the live view. Also covers building product-analytics insights that mirror what the tiles show.
Retrieve category names, ids, and parentIds from the EHunt Etsy category data synced to the MCP library via `_ehunt_etsyCategorySearch` (MCP display name: "Etsy Category Query"), which is used for category ids in product/shop filtering. Trigger this skill when users mention EHunt Etsy categories, Etsy category id, Etsy category tree, _ehunt_etsyCategorySearch, Etsy Category Query, syncEtsyCategory / _ehunt_syncEtsyCategory (Etsy Category Sync) followed by category lookup. Even if users don't mention EHunt, this skill should be triggered as long as they are searching for category ids by keywords in the locally synced Etsy category library.
Build and maintain the Hermes Atlas ecosystem map with quality filtering, RAG chatbot, and live GitHub star tracking
Managed vector database for production AI applications. Fully managed, auto-scaling, with hybrid search (dense + sparse), metadata filtering, and namespaces. Low latency (<100ms p95). Use for production RAG, recommendation systems, or semantic search at scale. Best for serverless, managed infrastructure.
Comprehensive backend development guide for Langfuse's Next.js 14/tRPC/Express/TypeScript monorepo. Use when creating tRPC routers, public API endpoints, BullMQ queue processors, services, or working with tRPC procedures, Next.js API routes, Prisma database access, ClickHouse analytics queries, Redis queues, OpenTelemetry instrumentation, Zod v4 validation, env.mjs configuration, tenant isolation patterns, or async patterns. Covers layered architecture (tRPC procedures → services, queue processors → services), dual database system (PostgreSQL + ClickHouse), projectId filtering for multi-tenant isolation, traceException error handling, observability patterns, and testing strategies (Jest for web, vitest for worker).
Review open issues, selecting an issue to work on, filtering issues by area, pulling GitHub issues, or deciding what to work on next. Triggers include "check issues", "list issues", "what issues", "open issues", "show issues", "view issues", "select issue to work on", "github issues", "backlog issues", "pull issues", "check todos" (deprecated), "list todos" (deprecated), "pending todos" (deprecated).
Integrates SAP Cloud SDK for AI into JavaScript/TypeScript and Java applications. Use when building applications with SAP AI Core, Generative AI Hub, or Orchestration Service. Covers chat completion, embedding, streaming, function calling, content filtering, data masking, document grounding, prompt registry, and LangChain/Spring AI integration. Supports OpenAI GPT-4o, Claude, Gemini, Amazon Nova, and other foundation models via SAP BTP.
List Langfuse traces with filtering options. Use when checking recent LLM calls, debugging issues, or monitoring costs.
Protein Dynamics, Evolution, and Structure analysis. Specialized in Normal Mode Analysis (NMA) using Anisotropic (ANM) and Gaussian Network Models (GNM). Features tools for structural ensemble analysis, PCA, and co-evolutionary analysis (Evol). Use for protein flexibility prediction, collective motions, structural ensemble comparison, hinge region identification, binding site analysis, MD trajectory filtering, and evolutionary analysis.