Testing
Unit tests, integration tests, test automation
auth0-vue
by auth0
Use when adding authentication to Vue.js 3 applications (login, logout, user sessions, protected routes) - integrates @auth0/auth0-vue SDK for SPAs with Vite or Vue CLI
auth0-angular
by auth0
Use when adding authentication to Angular applications with route guards and HTTP interceptors - integrates @auth0/auth0-angular SDK for SPAs
tdd-practices
by ssiumha
Applies TDD workflow to development. Use when writing tests before code, implementing features test-first, fixing bugs via failing test, or refactoring with test coverage. Detects AI anti-patterns.
checkin
by AsiaOstrich
"[UDS] Pre-commit quality gates verification"
typescript
by EpicenterHQ
TypeScript code style, type co-location, naming conventions (including acronym casing), test organization, and arktype patterns. Use when writing TypeScript code, defining types, naming variables/functions, organizing tests, or working with arktype schemas.
dispatching-parallel-agents
by guanyang
Use when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
context-compression
by guanyang
This skill should be used when the user asks to "compress context", "summarize conversation history", "implement compaction", "reduce token usage", or mentions context compression, structured summarization, tokens-per-task optimization, or long-running agent sessions exceeding context limits.
evaluation
by guanyang
This skill should be used when the user asks to "evaluate agent performance", "build test framework", "measure agent quality", "create evaluation rubrics", or mentions LLM-as-judge, multi-dimensional evaluation, agent testing, or quality gates for agent pipelines.
subagent-driven-development
by guanyang
Use when executing implementation plans with independent tasks in the current session
interface-design
by Dammyjay93
This skill is for interface design — dashboards, admin panels, apps, tools, and interactive products. NOT for marketing design (landing pages, marketing sites, campaigns).
finishing-a-development-branch
by guanyang
Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup
test-driven-development
by guanyang
Use when implementing any feature or bugfix, before writing implementation code
ab-split-test-engineering
by dmend3z
A comprehensive skill for A/B split test engineering, following Neil Patel's methodology. It covers test prioritization (ICE scoring), statistical significance, sample size, hypothesis formation, variable isolation, multivariate vs. A/B decisions, test documentation, and conversion lift calculation. Use this skill to optimize web pages, ads, and emails for higher conversion rates.
k8s-rollouts
by rohitg00
Progressive delivery with Argo Rollouts and Flagger. Use when implementing canary deployments, blue-green deployments, or traffic shifting strategies.
managing-astro-local-env
by astronomer
Manage local Airflow environment with Astro CLI. Use when the user wants to start, stop, or restart Airflow, view logs, troubleshoot containers, or fix environment issues. For project setup, see setting-up-astro-project.
creating-openlineage-extractors
by astronomer
Create custom OpenLineage extractors for Airflow operators. Use when the user needs lineage from unsupported or third-party operators, wants column-level lineage, or needs complex extraction logic beyond what inlets/outlets provide.
review-pr
by alpinejs
Review an open PR like a maintainer — checkout, fix issues, push changes, post a structured verdict comment. You just merge or close.
refactoring
by cosmix
Restructures existing code to improve readability, maintainability, and performance without changing external behavior. USE WHEN: Restructuring code without changing behavior, extracting methods/classes, removing duplication, applying design patterns, improving code organization, reducing technical debt. DO NOT USE: For bug fixes (use /debugging), for adding tests (use /testing), for new features (implement directly). TRIGGERS: refactor, restructure, rewrite, clean up, simplify, extract, inline, rename, move, split, merge, decompose, modularize, decouple, technical debt, code smell, DRY, SOLID, improve code, modernize, reorganize.
e2e-testing
by cosmix
End-to-end testing patterns and best practices for web applications using Playwright, Cypress, Selenium, and Puppeteer. Covers Page Object Model, test fixtures, selector strategies, async handling, visual regression testing, and flaky test prevention. Includes QA expertise for acceptance testing, smoke testing, cross-browser testing, and test reliability. Use when setting up E2E tests, debugging test failures, improving test reliability, or implementing browser automation. Trigger keywords: e2e, e2e testing, end-to-end, end-to-end tests, Playwright, Cypress, Selenium, Puppeteer, Page Object Model, page object, test fixtures, selectors, locator, locators, data-testid, async tests, visual regression, visual testing, screenshot, flaky tests, flakiness, browser testing, browser automation, UI test, UI testing, acceptance test, acceptance testing, smoke test, smoke testing, integration test, wait, waits, assertion, assertions, test data, test isolation.
debugging
by cosmix
Systematically diagnoses and resolves software bugs, test failures, data quality issues, and performance problems using various debugging techniques and tools. Trigger keywords: debug, bug, error, exception, crash, issue, troubleshoot, fix, stack trace, diagnosis, diagnose, investigate, root cause, why, failing, broken, not working, unexpected, flaky, intermittent, regression, performance degradation.
fluxcd
by cosmix
GitOps continuous delivery toolkit for Kubernetes with Flux CD. Use when implementing GitOps workflows, declarative deployments, Helm chart automation, Kustomize overlays, image update automation, multi-tenancy, or Git-based continuous delivery. Triggers: flux, fluxcd, gitops, kustomization, helmrelease, gitrepository, helmrepository, imagerepository, imagepolicy, image automation, source controller, continuous delivery, kubernetes deployment automation, helm automation, kustomize automation, git sync, declarative deployment.
pyproject-toml
by vamseeachanta
Configure Python projects with pyproject.toml for modern packaging, tools, and dependency management
interview-me
by mycelium-hq
Use when an ask is underspecified ("build me X" without who it's for, why now, or what success looks like), when a request is conventional rather than specific ("a dashboard", "make it faster" with no number), when Claude catches itself silently filling in ambiguous requirements before any plan, spec, or code exists, or when the user says "interview me", "grill me", "are we sure?", or "stress-test my thinking". Needs a live user; not for CI, scheduled runs, or autonomous loops.
istio
by cosmix
Service mesh implementation with Istio for microservices traffic management, security, and observability. Use when implementing service mesh, mTLS, traffic routing, load balancing, circuit breakers, retries, timeouts, canary deployments, A/B testing, or service-to-service communication. Triggers: istio, service mesh, envoy, sidecar, virtualservice, destinationrule, gateway, mtls, peerauthentication, authorizationpolicy, serviceentry, traffic management, traffic splitting, canary, blue-green, circuit breaker, retry, timeout, load balancing, ingress, egress, observability, tracing, telemetry.