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Found 3,721 Skills
Jest testing best practices for JavaScript and TypeScript applications, covering test structure, mocking, and assertion patterns.
Browser automation command reference and usage patterns for web testing, form filling, screenshots, and data extraction.
Test features before users find bugs. Use when feature is built, before deploying, or when bugs reported. Covers manual testing, edge cases, cross-browser testing, and testing checklists for non-technical founders.
Email marketing automation - campaign creation, sequence building, A/B testing, deliverability optimization, and analytics
Implement Terraform Provider resources and data sources using the Plugin Framework. Use when developing CRUD operations, schema design, state management, and acceptance testing for provider resources.
User research, usability heuristics, user psychology, accessibility, inclusive design, user testing, and UX metrics
Use when Codex is building or iterating on a web game (HTML/JS) and needs a reliable development + testing loop: implement small changes, run a Playwright-based test script with short input bursts and intentional pauses, inspect screenshots/text, and review console errors with render_game_to_text.
Test automation framework expert for creating and maintaining automated tests. Use when user asks to write tests, automate testing, or improve test coverage.
Multi-platform ad copy generation for Google Ads, Meta/Facebook, TikTok, LinkedIn with A/B testing variants
Production-ready Express.js development covering middleware architecture, error handling, security hardening, testing strategies, and deployment patterns
Extract the Supabase anon/public API key from client-side code. This key is expected in client apps but important for RLS testing.
Use when writing E2E tests with Playwright, setting up test infrastructure, or debugging flaky browser tests. Invoke for browser automation, E2E tests, Page Object Model, test flakiness, visual testing.