Proves
Proves unitàries, d’integració i automatitzades
refactoring-legacy-code
lv416e
"Use when modernizing, migrating, or restructuring existing code - systematic approach to safe refactoring through characterization tests, dependency analysis, strangler fig migration, and incremental transformation; ensures no behavior changes without test coverage first 既存コードのモダナイゼーション、移行、再構築時に使用 - 特性テスト、依存関係分析、ストラングラーフィグ移行、段階的変換による安全なリファクタリングの体系的アプローチ。テストカバレッジなしでの動作変更を防止"
ydc-ai-sdk-integration
youdotcom-oss
Integrate Vercel AI SDK applications with You.com tools (web
vitest
sanity-io
Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking, configuring coverage, or working with test filtering and fixtures.
defi-protocol-templates
scaffold-eth
Implement DeFi protocols with production-ready templates for staking, AMMs, governance, and lending systems. Use when building decentralized finance applications or smart contract protocols.
claude-code-plugins
melodic-software
"Read coverage artifacts a build already wrote (lcov, Cobertura, coverage.py JSON, a Go cover profile) and report line coverage per file and function, plus CRAP per function, for a change, a path, or the tree. Runs no tests, never gates. Use when: 'coverage of this change', 'coverage per function', 'CRAP score', 'which functions are complex and untested', 'read the lcov report', 'coverage.xml', 'how covered is this file'. Complexity alone: /code-metrics:audit-complexity."
java-kotlin
miles990
Java and Kotlin programming patterns
ln-514-regression-checker
levnikolaevich
Worker that runs existing tests to catch regressions. Auto-detects framework, reports pass/fail. No status changes or task creation.
maintain-docusaurus-manual
matthiasn
Maintain a Docusaurus product manual whose prose, navigation, localized page trees, screenshots, coverage metadata, and release build must stay aligned with the application. Use when adding or revising manual pages, documenting a product change, updating translated MDX, repairing locale parity, adding registered screenshots, auditing stale documentation, or validating a multilingual Docusaurus site before publication.
extract-test-set
tradingstrategy-ai
Extract raw price dataframe for a test case
tdd-practices
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
AsiaOstrich
"[UDS] Pre-commit quality gates verification"
typescript
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.
context-compression
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.
subagent-driven-development
guanyang
Use when executing implementation plans with independent tasks in the current session
interface-design
Dammyjay93
This skill is for interface design — dashboards, admin panels, apps, tools, and interactive products. NOT for marketing design (landing pages, marketing sites, campaigns).
ab-split-test-engineering
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.
solana-dev
solana-foundation
End-to-end Solana development playbook (Jan 2026). Prefer Solana Foundation framework-kit (@solana/client + @solana/react-hooks) for React/Next.js UI. Prefer @solana/kit for all new client/RPC/transaction code. When legacy dependencies require web3.js, isolate it behind @solana/web3-compat (or @solana/web3.js as a true legacy fallback). Covers wallet-standard-first connection (incl. ConnectorKit), Anchor/Pinocchio programs, Codama-based client generation, LiteSVM/Mollusk/Surfpool testing, and security checklists.
debug
udecode
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes - four-phase framework (root cause investigation, pattern analysis, hypothesis testing, implementation) that ensures understanding before attempting solutions
creating-openlineage-extractors
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
alpinejs
Review an open PR like a maintainer — checkout, fix issues, push changes, post a structured verdict comment. You just merge or close.
e2e-testing
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
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
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.
xcsift
ldomaradzki
Use xcsift for Swift and Xcode build output. Activate when running swift build, swift test, or xcodebuild commands. Pipe output through xcsift for structured TOON format optimized for LLM consumption.