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Found 2,260 Skills
Score, grade, or evaluate things using AI against a rubric. Use when grading essays, scoring code reviews, rating candidate responses, auditing support quality, evaluating compliance, building a quality rubric, running QA checks against criteria, assessing performance, rating content quality, or any task where you need numeric scores with justifications — not just categories.
BigQuery Expert Engineer Skill - Comprehensive guide for GoogleSQL queries, data management, performance optimization, and cost management Use when: - Running bq commands (query, load, extract) - Writing GoogleSQL queries (functions, JOINs, CTEs) - Designing partitioned/clustered tables - Using BigQuery ML or external data sources
Expert prompt optimization for LLMs and AI systems. Use when building AI features, improving agent performance, crafting system prompts, or optimizing LLM interactions. Masters prompt patterns and techniques.
Write idiomatic Go with goroutines, channels, and interfaces. Use for Go development, concurrency, or performance.
Comprehensive test automation specialist covering unit, integration, and E2E testing strategies. Expert in Jest, Vitest, Playwright, Cypress, pytest, and modern testing frameworks. Guides test pyramid design, coverage optimization, flaky test detection, and CI/CD integration. Activate on 'test strategy', 'unit tests', 'integration tests', 'E2E testing', 'test coverage', 'flaky tests', 'mocking', 'test fixtures', 'TDD', 'BDD', 'test automation'. NOT for manual QA processes, load/performance testing (use performance-engineer), or security testing (use security-auditor).
Reviews Elixir code for performance issues including GenServer bottlenecks, memory usage, and concurrency patterns. Use when reviewing high-throughput code or investigating performance issues.
Advanced TypeScript type system specialist for complex generics, conditional types, template literals, type inference, performance optimization, and type-level programming. Use for intricate type system challenges, recursive types, brand types, utility type authoring, and type performance issues. Includes comprehensive coverage of 18 advanced type system error patterns.
Angular performance optimization and best practices guidelines for change detection, bundle optimization, templates, RxJS, and component architecture. Use when writing, reviewing, or refactoring Angular code, designing component hierarchies, optimizing performance, or implementing reactive patterns.
Log exploration and analysis using Quickwit search engine. Incident investigation, error pattern analysis, and observability workflows. Three index discovery modes for different performance and convenience trade-offs.
Master enterprise-grade Scala development with functional programming, distributed systems, and big data processing. Expert in Apache Pekko, Akka, Spark, ZIO/Cats Effect, and reactive architectures. Use PROACTIVELY for Scala system design, performance optimization, or enterprise integration.
SwiftUI NavigationStack, NavigationSplitView, and navigation transition patterns for iOS 16-18+. Covers @Observable coordinators, zoom transitions, hero animations, sheet vs push decisions, multi-step flows, anti-patterns, performance, accessibility, deep linking, and state restoration. This skill should be used when designing navigation hierarchies, implementing screen transitions, choosing between sheet and push, orchestrating multi-step flows, using @Observable with @Environment and @Bindable, or reviewing navigation code for anti-patterns.
Comprehensive GameMaker Studio 2 and GML expertise covering beginner to advanced topics. Provides guidance on object creation, GML syntax, event systems, data structures, file I/O, shaders, networking, platform-specific features, performance optimization, and debugging. Automatically invoked when working with .gml files, .yy files, .yyp projects, or GameMaker-related tasks. References official manual (manual.gamemaker.io) for authoritative documentation.