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Found 493 Skills
Python backend testing patterns with pytest for FastAPI applications. Use when writing Python tests: unit tests for services and repositories, integration tests for API endpoints with httpx.AsyncClient, fixture creation, factory setup with factory_boy, async testing with pytest-asyncio, mocking strategies, and parametrized tests. Covers test organization (tests/unit, tests/integration), conftest hierarchy, and coverage requirements. Does NOT cover frontend tests (use react-testing-patterns) or E2E browser tests (use e2e-testing).
Auto-activate for pytest_databases, Docker DB fixtures, PostgreSQL/pgvector/AlloyDB Omni/MySQL/Oracle/MSSQL/CockroachDB/Yugabyte/MongoDB/GizmoSQL/Redis/Spanner/BigQuery/Azurite/MinIO tests. Not for mocked DBs.
Self-contained design transformer — invoke directly, do not decompose. Transforms a design reference HTML file into a Vibes app. Use when user provides a design.html, mockup, or static prototype to match exactly.
YC office hours skill. Used by founders for product diagnostic with six forcing questions, premise challenges, alternatives, and a design doc. Use when the user wants founder coaching, startup strategy feedback, or a mock office-hours conversation.
Use when setting up TYPO3 extension test infrastructure, writing unit/functional/E2E tests, configuring PHPUnit, mutation testing, mocking, CI/CD test pipelines, or debugging CI failures. Also triggers on: ensure proper testing, test matrix, integration testing, e2e testing, coverage, test generation.
Testing patterns for React and React Router v7 - Vitest, React Testing Library, route testing, mocking loaders/actions
Laws of UX critique skill. Use when evaluating mockups, screenshots, design specs, prototypes, flows, onboarding, checkout, dashboards, forms, or design-review requests, even when the user does not say UX or name a law. Output the 2-4 most relevant laws with specific application and law-grounded recommendations. Do not use for pure frontend implementation code review, WCAG/accessibility audits, or brand/visual-identity critique unless interaction usability is also in scope.
Upgrade a coded website to award-tier, editorially-crafted design using fal.ai. Takes a local HTML file or a dev-server URL, screenshots it, has an opus-4.7 vision model write a gpt-image-2 edit prompt, uses fal-ai/gpt-image-2/edit to produce the redesigned reference image, then opus-4.7 vision writes a Markdown build-spec with a "Hard constraints" section + a tokens.json. Also supports iterate (screenshot implemented site → delta-spec vs reference) and greenfield generate (brief → mockup → single-file HTML). Invoke when the user says "improve the design", "make it world-class", "redesign this landing page", "upgrade this site", "design pass", or points at a local HTML / dev server for a visual review.
Use when writing, fixing, editing, or refactoring React tests with Testing Library, user-event, component rendering, accessibility queries, async UI, mocks, brittle fixtures, test data builders, or behavior coverage.
Test C# MCP servers at multiple levels: unit tests for individual tools and integration tests using the MCP client SDK. USE FOR: unit testing MCP tool methods, integration testing with in-memory MCP client/server, end-to-end testing via MCP protocol, testing HTTP MCP servers with WebApplicationFactory, mocking dependencies in tool tests, creating evaluations for MCP servers, writing eval questions, measuring tool quality. DO NOT USE FOR: testing MCP clients (this is server testing only), load or performance testing, testing non-.NET MCP servers, debugging server issues (use mcp-csharp-debug).
Use for any image creation or editing request — logo, sticker, product mockup, nano banana, t2i, i2i, multi-reference compositing via generate.py. Not for HTML/CSS mockups, diagrams, or coded UI.
Use when building Google Play Store screenshot pages, generating exportable marketing screenshots for Android apps, or creating programmatic screenshot generators with Next.js. Triggers on google play store, play store, screenshots, marketing assets, phone mockup.