Skill Codex
Design and implement deliberate product interfaces in an existing codebase or a new prototype. Use when asked to create a page, flow, component, landing page, dashboard, mobile-shaped web experience, design system surface, or to make an interface clearer, more coherent, more responsive, or more polished. Triggers on…
Skill Codex
Build, refactor, debug, test, and ship production React Native applications across iOS and Android, including Expo and bare workflows. Use for native navigation, app lifecycle, permissions, deep links, secure storage integration, virtualized lists, keyboard and safe-area behavior, gestures, animation, JS/UI thread…
Skill Codex
Build, refactor, debug, and test production React web applications with clear component boundaries, minimal state, disciplined Effects, resilient async behavior, measured performance, and framework-aware server/client integration. Use for React components, hooks, context, forms, routing, data fetching, Suspense, error…
Skill Codex
Perform a read-only, evidence-based review of a product interface as one coherent experience. Use when asked to critique, audit, evaluate, or approve a screen, flow, component, visual implementation, responsive behavior, design system surface, or UI change without implementing fixes. Supports quick and full modes.…
Skill Codex
Perform a read-only review of React Native and Expo code for cross-platform correctness, lifecycle safety, navigation and deep-link behavior, native configuration, permissions, device storage, list and thread performance, gestures, accessibility, build profiles, and OTA compatibility. Use for pull requests, diffs…
Skill Codex
Perform a read-only review of React web code for correctness, state ownership, Hook and Effect discipline, async races, component API quality, server/client boundaries, hydration, measured performance risks, accessibility regressions, and meaningful tests. Use for pull requests, diffs, components, hooks, routes…
Skill Codex
Perform a read-only, evidence-based security review of web, API, backend, React, React Native, mobile, dependency, CI/CD, and infrastructure changes. Use when asked for a security review, secure code review, vulnerability assessment, AppSec review, threat review, authentication review, authorization review…
Skill Codex
Threat-model, design, implement, and verify security controls in web, API, backend, React, and React Native software. Use when building authentication, session management, authorization, sensitive-data handling, secrets, cryptography integration, input validation, file upload, outbound requests, audit logging, error…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: