Total 30,738 skills
Showing 12 of 30738 skills
Test execution patterns, failure classification, and result analysis
Use the better-all library for Promise.all with automatic DAG-based dependency optimization and full type inference. Use when parallelizing async operations with complex dependencies.
PHPUnit testing conventions and best practices for any PHP project
AI Agent native API provider — no API keys, no signups, no subscriptions. Just pay with USDC per request via x402 to instantly access Twitter, Instagram, and more.
Authentication patterns for React web applications. Use when implementing login flows, OAuth, JWT handling, session management, or protected routes in React web apps.
Use when creating, modifying, or debugging Claude Code plugins. Triggers on .claude-plugin/, plugin.json, marketplace.json, commands/, agents/, skills/, hooks/ directories. Provides schemas, templates, validation workflows, and troubleshooting.
Create flashcards for spaced repetition learning, compatible with Anki import. Supports basic cards, cloze deletions, and mnemonic aids. Use when creating study flashcards, Anki decks, vocabulary cards, memorization aids, or spaced repetition materials from notes or topics. Triggers - create flashcards, make Anki cards, spaced repetition, memory cards, cloze deletion cards.
Create social media graphics and visual assets for any platform. Handles platform-specific dimensions, safe zones, and design constraints. Integrates with art:nanobanana for image generation and brand guidelines for consistency.
Senior Kotlin developer. Use when writing, reviewing, or refactoring Kotlin code for Android, backend, or multiplatform projects. Enforces idiomatic Kotlin and modern patterns.
Senior Terraform and Infrastructure as Code engineer. Use when writing, reviewing, or refactoring Terraform configurations. Enforces modular design and production patterns.
Fast, high-signal accessibility triage for pages, components, or PRs targeting WCAG 2.2 AA compliance.
Implement Stripe Billing for subscriptions, recurring payments, invoicing, and usage-based pricing. Use when: (1) Creating subscription plans (flat, tiered, per-seat, usage-based), (2) Managing subscription lifecycle (trials, upgrades, downgrades, cancellations), (3) Generating and customizing invoices, (4) Implementing metered/usage-based billing, (5) Setting up customer portal for self-service, (6) Configuring dunning and revenue recovery, (7) Applying coupons and promotion codes. Triggers on: subscription, recurring billing, invoice, usage-based, metered billing, SaaS pricing, subscription plan, trial, dunning, proration, customer portal, coupon, promotion code, billing cycle.