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Official AWS Labs developer-experience MCP server for Amazon DynamoDB that provides expert data-modeling guidance, model validation against DynamoDB Local, source-database analysis, schema conversion, and CDK generation.

MIT-licensed Go implementation of the Model Context Protocol for building MCP servers and clients with tools, resources, prompts, stdio, SSE, Streamable HTTP, hooks, session management, validation, sampling, roots, and tracing.

Slash command that validates a HeyClaude Raycast extension feed JSON file against registry schema expectations: required entry fields, forbidden payload keys, HTTPS detail URLs, MCP install targets, and copy preview limits.

Expert prompt caching cost audit capability pack for measuring Claude Code cache hit rates, identifying cache invalidation triggers, and reducing token spend from CLAUDE.md edits, model switches, and startup load changes.

Official CircleCI MCP server that lets LLMs query build and test failures, detect flaky tests, check pipeline status, fetch build logs, and validate config in CircleCI through natural language.

MCP server for remote project memory-bank management, with multi-project directories, file listing, read/write/update tools, and path isolation.

Apache-2.0 GX Core Python library for data quality Expectations, validation definitions, checkpoints, Data Docs, metadata stores, and pipeline quality checks.

Build and review Hono TypeScript APIs for Cloudflare Workers, Bun, Deno, Node.js, Vercel, Netlify, and other Web Standards runtimes with routing, middleware, validation, RPC clients, OpenAPI generation, deployment checks, and production safety review.

Source-backed Claude agent prompt for contributing to the official elastic/kibana repository using its AGENTS.md guidance for Kibana modules, plugin lifecycle boundaries, server plugin lazy loading, TypeScript style, i18n, Scout, Jest, FTR, scoped type checks, and focused validation.

Build and maintain NestJS backend APIs with modules, controllers, providers, dependency injection, configuration, validation pipes, guards, interceptors, exception filters, OpenAPI docs, testing, and production safety review.

Official Shopify Dev MCP server from the Shopify AI Toolkit that connects Claude and other MCP clients to Shopify developer documentation, API schemas, GraphQL validation, Liquid and theme validation, UI extension validation, Shopify Functions guidance, Polaris surfaces, and Shopify CLI workflow guidance.

Build React server-state workflows with TanStack Query v5, including query keys, QueryClient setup, cache defaults, mutations, invalidation, hydration, retries, and privacy-aware data handling.

Open-source Python library for structured LLM outputs using Pydantic response models, validation, retries, streaming, and provider adapters.

Expert validation skill for reviewing /llms.txt, search discovery artifacts, canonical signals, structured data, and LLM-ready documentation links.

Expert Renovate review skill for evaluating dependency upgrade PRs, package rules, lockfile changes, grouping, automerge, and release readiness.

Free hosted Demand Discovery AI MCP server that answers startup validation questions, explains demand signals, and kicks off market research reports with no API key required.

MCP server that gives Claude and other MCP clients structured access to n8n node documentation, workflow templates, validation tools, and optional n8n API workflow management.

Open-source Python framework for adding input and output guards, validators, structured generation, and policy checks to LLM applications.

Expert Agent Skills ZIP packaging QA capability pack applying documented skills directory layout, SKILL.md frontmatter checks, archive validation, and install smoke tests from official skills and plugin packaging documentation.

Expert Claude Code computer use GUI QA capability pack that applies documented computer-use MCP enablement, per-app session approval, screenshot checkpoints, and macOS permission workflows for native app validation—not an official Anthropic QA product.

Community reusable agent prompt for end-to-end GUI validation with Claude Code computer use using official documentation: enable the computer-use MCP server, per-app session approval, screenshot checkpoints, and documented example workflows for native apps.

Community reusable agent prompt for migrating teams to Claude Code dynamic workflows using official workflows documentation: audit phases, YAML or config migration steps, validation gates, and rollback planning for large codebase automation.

Community reusable agent prompt for pre-publish review of MCP Registry server.json metadata using official quickstart and authentication documentation: namespace checks, package pointers, field validation, and duplicate listing detection.

Chinese product-decision skill that distills the reasoning structure of On Contradiction and On Practice into bottleneck diagnosis, stage-aware prioritization, minimal validation, and evidence-driven strategy updates.

Open-source workflow engine for AI coding agents that runs YAML-defined development processes with deterministic phases, isolated git worktrees, validation gates, and integration with Claude Code and other AI assistants.

Expert incident timeline reconstruction capability pack for correlating deploy events, logs, traces, alerts, and chat transcripts into a source-backed, privacy-safe post-incident timeline with validation checkpoints.

Secure command-line execution MCP server that lets Claude run allowlisted commands inside a configured directory with command and flag whitelists, path validation, shell-operator blocking, command-length limits, execution timeouts, and a tool for showing the active security rules.

Add PostHog to a Next.js app with client and server event capture, user identification, feature flags, session replay privacy controls, reverse-proxy planning, and production analytics validation.