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Found 2,417 Skills
Build modern mobile applications with React Native, Flutter, Swift/SwiftUI, and Kotlin/Jetpack Compose. Covers mobile-first design principles, performance optimization (battery, memory, network), offline-first architecture, platform-specific guidelines (iOS HIG, Material Design), testing strategies, security best practices, accessibility, app store deployment, and mobile development mindset. Use when building mobile apps, implementing mobile UX patterns, optimizing for mobile constraints, or making native vs cross-platform decisions.
List available large language models and send chat completion requests programmatically. Use this skill when you need to call an LLM within a snippet, including model comparison, visual understanding, batch inference, and model performance testing.
Low-level Go terminal primitives - cell-based rendering, input handling, screen management. Use when building custom Go terminal renderers, ultraviolet, cell buffers, or performance-critical TUI work below Bubble Tea's abstraction level.
Run Salesforce Code Analyzer to scan code for security, performance, best practice, and code style violations. Supports all engines (PMD, ESLint, CPD, RetireJS, Flow, SFGE, ApexGuru), targets (files, folders, git diff), categories, and severities. Also handles post-scan exploration: filtering results by engine/severity/category/file, and explaining what specific rules mean. TRIGGER when: user says 'scan my code', 'check for security issues', 'run PMD/ESLint', 'find duplicates', 'analyze Flows', 'check vulnerable libraries', 'AppExchange review', 'lint my LWC', 'static analysis', 'code quality', 'show only security violations', 'what is this rule', 'explain ApexCRUDViolation', 'filter results', or mentions engines/file types (.cls, .trigger, .js, .flow-meta.xml). Use this skill for scanning, exploring results, understanding rules, and listing available rules. DO NOT TRIGGER when: user wants to fix code without scanning, or asks ONLY about installation/configuration.
Supabase security and performance guidelines with Clerk authentication integration. Contains 40+ rules across 10 categories covering RLS policies, Clerk setup, database security, and more.
Profile a React Native Hermes app to measure re-render and CPU performance using argent profiler tools. Use when optimizing for performance, measuring before/after a fix, spotting slow components, diagnosing re-renders, checking CPU hotspots, or producing a ranked issue report.
Build robust backend systems with modern technologies (Node.js, Python, Go, Rust), frameworks (NestJS, FastAPI, Django), databases (PostgreSQL, MongoDB, Redis), APIs (REST, GraphQL, gRPC), authentication (OAuth 2.1, JWT), testing strategies, security best practices (OWASP Top 10), performance optimization, scalability patterns (microservices, caching, sharding), DevOps practices (Docker, Kubernetes, CI/CD), and monitoring. Use when designing APIs, implementing authentication, optimizing database queries, setting up CI/CD pipelines, handling security vulnerabilities, building microservices, or developing production-ready backend systems.
JVM performance profiling with Java Flight Recorder (JFR), jcmd, and GC analysis. Use for identifying bottlenecks and memory issues. USE WHEN: user mentions "Java profiling", "JFR", "JVM performance", asks about "Java Flight Recorder", "jcmd", "heap dump", "GC tuning", "thread dump", "Java memory leak" DO NOT USE FOR: Node.js/Python profiling - use respective skills instead
You are **Finance Tracker**, an expert financial analyst and controller who maintains business financial health through strategic planning, budget management, and performance analysis. You speciali...
Expert SQL query writing, optimization, and database schema design with support for PostgreSQL, MySQL, SQLite, and SQL Server. Use when working with databases for: (1) Writing complex SQL queries with joins, subqueries, and window functions, (2) Optimizing slow queries and analyzing execution plans, (3) Designing database schemas with proper normalization, (4) Creating indexes and improving query performance, (5) Writing migrations and handling schema changes, (6) Debugging SQL errors and query issues
Comprehensive guide for implementing animations in Flutter. Use when adding motion and visual effects to Flutter apps: implicit animations (AnimatedContainer, AnimatedOpacity, TweenAnimationBuilder), explicit animations (AnimationController, Tween, AnimatedWidget/AnimatedBuilder), hero animations (shared element transitions), staggered animations (sequential/overlapping), and physics-based animations. Includes workflow for choosing the right animation type, implementation patterns, and best practices for performance and user experience.
Query Ethereum network data via ethpandaops CLI or MCP server. Use when analyzing blockchain data, block timing, attestations, validator performance, network health, or infrastructure metrics. Provides access to ClickHouse (blockchain data), Prometheus (metrics), Loki (logs), and Dora (explorer APIs).