MCP App StoreMCP App StoreSKILL.md packages that extend Claude Code, Cursor, Copilot, and other AI agents.
Tags
moicle
A Test-Driven Development (TDD) guidance skill that provides prompts and procedures to help agents and developers follow TDD workflows when writing code and tes
claude-skill-registry
Analyze, plan, and execute upgrades of the Vercel SDK with automated breaking-change detection, test guidance, and rollback procedures.
dotfiles
Safety-focused workflow for local dbt development that prevents accidental use of production BigQuery schemas by redirecting schemas and enforcing pre-commit ch
claude-skill-registry
Guides agents to create, validate, and optimize Agent Skills (SKILL.md) with best practices, frontmatter rules, and testing workflows.
ok-skills
Control and automate Electron-based desktop apps (Slack, VS Code, Discord, Figma, Notion, Spotify) via the Chrome DevTools Protocol for snapshots, interactions,
wayland
Guides creation and remediation of accessible PDFs, Word, PowerPoint, and email documents to meet PDF/UA, WCAG, and Section 508 standards.
kit
Development guide for building Kit extensions: register tools, slash commands, widgets, keyboard shortcuts and integrate with the Kit lifecycle.
pypict-claude-skill
Design pairwise (PICT) test models and generate compact test suites with parameters, constraints and expected outcomes.
claude-code-plugins
Assess and improve requirements using INVEST criteria, MoSCoW prioritization, clarity patterns, and acceptance criteria templates to make requirements testable
vgv-wingspan
Execute an implementation plan: implement tasks, write tests, run parallel review agents, validate quality, and open a pull request.
flashsquirrel
A 10-layer dynamic validation/checklist tool for runtime environment, resilience, and delivery verification (Sigma scale).
OpenHands Extensions
Guides setup and local development with KIND (Kubernetes IN Docker); includes installation steps for kind and kubectl and instructions to create a local cluster
TerminalSkills Library
Write and run load, stress, spike, and soak tests for APIs and websites using k6.
skills
Interactive QA session skill: describe bugs conversationally and have the agent explore the codebase, clarify, and file durable, user-focused GitHub issues.
pikku
Provides Ajv-based JSON Schema validation for Pikku apps: compile, register, and validate schemas; use as the Node.js default SchemaService.
claude-skill-registry
Run and filter TUnit Playwright tests for a .NET project; provides recommended flags for parallelism, retries, and reporting.
claude-mpm-skills
Guided, safe patterns for evolving database schemas in production with decision trees, tooling examples, and rollback strategies.
cafekit
CLI for context-efficient browser automation: snapshots, DOM actions, screenshot/video recording, and cloud browser support for long autonomous agent sessions.
claude-mpm-skills
Guides for writing concurrent I/O-bound Python code with async/await: event loops, tasks, aiohttp, async DB patterns, and FastAPI async endpoints.
agent-skills
Expert guidance for using Effect-TS: services, layers, typed errors, Schema/JSONSchema, runtime and testing patterns.
claude-skill-registry
Run deterministic smoke tests and contract checks to validate tool integrations, error handling, and schemas before agents depend on them.
scala-skill
Opinionated Scala style, tooling, and functional programming guidance for building direct-style (Ox) applications; includes compile/run tool guidance, code orga
skills_all-in-one
Guides agents on how to receive and handle code review feedback: verify, ask clarifying questions, prioritize fixes, and avoid performative agreement.
agentguard
Guidelines and best practices for modern PHP (8.4–8.5): typing, security, architecture, testing, and performance for writing and reviewing PHP code.
tonone
Generates a consumer-driven contract testing setup (Pact), provider/consumer configs, and CI integration guidance to make API contract testing reproducible and
agent-skills-hub
A structured workflow for improving agent performance via metrics, prompt engineering, testing (A/B), and safe staged rollouts.
chromium
Guides writing end-to-end browser tests for Chrome web applications using WebAppBrowserTestBase, with setup, waiting patterns, and state validation.
han
Practical Vitest configuration and workspace patterns for Vite projects: environment setup (node/jsdom), coverage, thread/pool tuning, browser mode, and CI-frie
skills
Turnkey end-to-end testing setup with Playwright or Cypress: page objects, fixtures, CI integration, accessibility checks and example tests.
everything-evenhub
A reproducible test harness skill that runs implementer and verifier subagents to validate other everything-evenhub skills end-to-end using structured checklist