Julia development guidelines covering multiple dispatch, type system, performance optimization, and scientific computing best practices.

Bootstrap development guidelines for responsive layouts, components, and utility-first styling.

Elasticsearch development best practices for indexing, querying, and search optimization

Unified team skill for issue resolution. Uses team-worker agent architecture with role directories for domain logic. Coordinator orchestrates pipeline, workers are team-worker agents. Triggers on "team issue".

Scaffold Codex plugin packages with deterministic manifests, marketplace metadata, and traceability or evidence contracts for non-trivial adoption. Use when creating plugin roots or adopting existing skills into plugin ownership.

Lead a team — run standups, coordinate tasks, and communicate.

Coordinate projects — track tasks, schedule meetings, and share docs.

gws CLI: Shared patterns for authentication, global flags, and output formatting.

Position sizing with Kelly criterion and bankroll management

Unified risk engine with VaR, stress testing, volatility regimes, and automated controls

Plugin management, installation, and lifecycle control

Search and view prediction market data from Polymarket, Kalshi, Manifold, and Metaculus

Execute trades on prediction markets with slippage protection and order management

REST service wrappers for routing, geocoding, printing, places, geoprocessing, and other server-side operations in ArcGIS Maps SDK for JavaScript

Advanced and specialized widgets including BuildingExplorer, FloorFilter, Track, Locate, Histogram, ScaleBar, Compass, NavigationToggle, and media viewers

Create and schedule Threads posts with auto-threading, image carousels, and reply control via Publora MCP

Flutter development with Riverpod state management, Freezed, go_router, and mocktail testing

Cloudflare D1 SQLite database with Workers, Drizzle ORM, migrations

Expert C4 Context-level documentation specialist. Creates high-level system context diagrams, documents personas, user journeys, system features, and external dependencies. Synthesizes container and component documentation with system documentation to create comprehensive context-level architecture. Use when creating the highest-level C4 system context documentation.

Optimal ViewModel and Wizard creation patterns for Avalonia using Zafiro and ReactiveUI.