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Found 281 Skills
Complete guide for Axum web framework including routing, extractors, middleware, state management, error handling, and production deployment
File-based routing conventions for Cloudwerk, a full-stack framework for Cloudflare Workers. Use when creating pages, API routes, layouts, middleware, or error boundaries. Triggers on tasks involving route files (page.tsx, route.ts, layout.tsx, middleware.ts, error.tsx, not-found.tsx), dynamic segments ([id], [...slug]), route groups ((group)), loaders, actions, or data loading patterns.
Comprehensive guide for implementing feature flags and A/B tests using the Flags SDK (the `flags` npm package). Use when: (1) Creating or declaring feature flags with `flag()`, (2) Setting up feature flag providers/adapters (Vercel, Statsig, LaunchDarkly, PostHog, GrowthBook, Hypertune, Edge Config, OpenFeature, Flagsmith, Reflag, Split, Optimizely, or custom adapters), (3) Implementing precompute patterns for static pages with feature flags, (4) Setting up evaluation context with `identify` and `dedupe`, (5) Integrating the Flags Explorer / Vercel Toolbar, (6) Working with feature flags in Next.js (App Router, Pages Router, Middleware) or SvelteKit, (7) Writing custom adapters, (8) Encrypting/decrypting flag values for the toolbar, (9) Any task involving the `flags`, `flags/next`, `flags/sveltekit`, `flags/react`, or `@flags-sdk/*` packages. Triggers on: feature flags, A/B testing, experimentation, flags SDK, flag adapters, precompute flags, Flags Explorer, feature gates, flag overrides.
Actix-web Rust web framework. Covers routing, extractors, middleware, state management, and WebSocket. Use for high-performance Rust APIs. USE WHEN: user mentions "actix-web", "actix", "rust web framework", "rust api", asks about "rust async web", "actix middleware", "actix extractors", "rust websocket", "high performance rust api" DO NOT USE FOR: Axum projects - use `axum` instead, Rocket projects - use `rocket` instead, Warp projects - use `warp` instead, non-Rust backends
Create or update Hono API routes/endpoints in apps/api for this repo (Cloudflare Workers). Use when adding/editing route index files, handlers, or Zod schemas, wiring middleware, Prisma access, validation, and the standard JSON response shape.
FastAPI integration testing specialist. Covers synchronous TestClient, async httpx AsyncClient, dependency injection overrides, auth testing (JWT, OAuth2, API keys), WebSocket testing, file uploads, background tasks, middleware testing, and HTTP mocking with respx, responses, and pytest-httpserver. USE WHEN: user mentions "FastAPI test", "TestClient", "httpx async test", "dependency override test", "respx mock", asks about testing FastAPI endpoints, authentication in tests, or HTTP client mocking. DO NOT USE FOR: Django - use `pytest-django`; pytest internals - use `pytest`; Container infrastructure - use `testcontainers-python`
Mailchimp platform help — email marketing campaigns, Customer Journey Builder automations, SMS marketing, audience management/CRM, landing pages, A/B testing, multivariate testing, transactional email (Mandrill), Content Studio, generative AI (Intuit Assist), retargeting ads, 300+ integrations. Use when asking 'how do I do X in Mailchimp', setting up Mailchimp campaigns, configuring Customer Journey Builder, managing Mailchimp audiences, using Mandrill transactional email, or troubleshooting Mailchimp deliverability. Do NOT use for general email marketing strategy (use /sales-email-marketing), cross-platform email deliverability (use /sales-deliverability), funnel strategy (use /sales-funnel), or connecting tools via middleware (use /sales-integration).
Implements Syncfusion Angular DataManager for local/remote binding, CRUD, querying, caching, and middleware. Supports JsonAdaptor, ODataAdaptor, ODataV4Adaptor, UrlAdaptor, WebApiAdaptor, WebMethodAdaptor, RemoteSaveAdaptor, GraphQLAdaptor, CustomDataAdaptor, and CustomAdaptor. Covers Query class, filtering, sorting, paging, grouping, persistence, offline mode, caching, and error handling.
Configure security headers to defend against clickjacking, XSS, MIME confusion, and SSL stripping attacks. Use this skill when you need to set up Content-Security-Policy, X-Frame-Options, HSTS, configure middleware headers, or understand browser security features. Triggers include "security headers", "CSP", "content security policy", "X-Frame-Options", "HSTS", "clickjacking", "MIME confusion", "middleware headers".
Modern PHP application development guidance for PHP 8.3+, Symfony, Composer, PHPUnit/Pest, PHPStan, Psalm, PSR standards, Doctrine, DTOs, value objects, dependency injection, migrations, middleware, and REST or GraphQL APIs. Use when Codex needs to build, refactor, test, statically analyze, or review PHP code and framework integrations.
Use when adding authentication or authorization to safe actions with Better Auth -- covers betterAuth() middleware setup, typed session context (BetterAuthContext), custom authorize callbacks (AuthorizeFn), unauthorized() handling, nextCookies() configuration, and Next.js authInterrupts setup
Implements role-based access control with permission matrix, route guards, policy functions, and UI permission hints. Provides middleware/guards, helper utilities, test suggestions, and permission checking patterns. Use when building "RBAC", "permissions", "access control", or "authorization".