10 tagged reactive, measured the same way as everything else here.
Skill Claude CodeCodex
Building, styling, testing, debugging, or observing a Shiny for R app - library(shiny), shinyApp(), runApp(). Index skill: read this, then open the linked reference for the task. Covers reactivity (reactive/observe/req/isolate/bindEvent); modules; async promises and ExtendedTask; bslib layouts, navigation, cards…
Skill Claude CodeCodex
Scaffold, extend, and verify reactive local-first JavaScript or TypeScript applications with TinyBase. Use when choosing TinyBase for in-memory tabular or key-value state, generating an app with create-tinybase, adding schemas or UI bindings, configuring browser or database persistence, configuring MergeableStore…
Skill Claude CodeCodex
5 async/concurrent patterns with full Java implementations for high-performance systems.
Skill Claude CodeCodex
Comprehensive Svelte 5 development guidelines covering runes, components, reactivity, and modern web development patterns.
Skill Claude CodeCodex
Idiomatic guide for Flet 1.0 applications. Covers declarative UI, hooks, observable state, services, async execution model, and breaking API changes from v0.x. Use this skill to write modern Flet code, migrate imperative apps to reactive patterns, apply breaking changes correctly, and avoid common pitfalls.