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moughamir
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mcp-server-skills

Share Zod schemas and business logic across MCP servers and Next.js server actions.

Updated Mar 26, 2026
Search Tags:#next.js#mcp#server actions#api routes#zod validation#tool schema
One-click install
npx skills add https://github.com/moughamir/justwaitit-review --skill mcp-server-skills-moughamir
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mcp-server-skills
Source: https://github.com/moughamir/justwaitit-review/tree/main/.agents/skills/mcp-server-skills
Command: npx skills add https://github.com/moughamir/justwaitit-review --skill mcp-server-skills-moughamir

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It solves the problem of keeping MCP tool behavior, validation, and web/UI server logic consistent so you don’t duplicate schemas or drift in responses across endpoints.

Core Features & Use Cases

  • Shared Zod schemas + tool definitions: define input validation and tool metadata once and reuse it for both MCP and server actions.
  • Reusable server actions: implement deterministic operations behind a shared { success, result | error } response shape so web testing matches MCP responses.
  • Lightweight MCP route wiring: keep route.ts focused on transport/handler setup while business logic lives in lib/*.
  • Use Case: you need an MCP tool (e.g., roll_dice) that can be invoked by an agent and also exercised via your Next.js UI with identical validation and output.

Quick Start

Use the shared lib/* Zod schema and logic to power both an MCP HTTP route and a Next.js server action, then expose the MCP endpoint under /api/[transport].

Frequently Asked Questions about mcp-server-skills

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
Why should I standardize MCP server actions with a shared response shape?▼

Standardizing MCP server actions with a shared response shape ensures that web testing matches MCP responses exactly, preventing schema duplication and output drift across different endpoints and agent interactions.

How do I share MCP tool schemas between a Next.js server action and an HTTP endpoint?▼

You can share MCP tool schemas by defining Zod validation and tool metadata once in a shared library, then wiring that logic into both Next.js server actions and MCP route handlers to ensure identical behavior across transports.

What is the best way to prevent response shape drift between an MCP endpoint and a Next.js UI?▼

The best way to prevent response drift is to implement deterministic operations behind a shared `{ success, result | error }` response shape, ensuring both the agent-facing MCP endpoint and the UI server actions return identical outputs.

How do I wire an MCP server into Next.js App Router without bloating my route files?▼

You can wire an MCP server by keeping `route.ts` focused strictly on transport and handler setup, while isolating all Zod schemas and business logic in shared `lib/*` modules that both the route and server actions import.

Can I use the same Zod validation for MCP agent calls and Next.js web testing?▼

Yes, you can define Zod schemas once and reuse them for both MCP tool invocations and Next.js server actions, allowing your web tests to exercise the exact same validation and output logic as the agent transport.

Does building an MCP server in Next.js require exposing separate logic for HTTP and SSE transports?▼

No, building an MCP server in Next.js does not require separate logic; you define reusable server actions and shared schemas once, then expose them under `/api/[transport]` to support both HTTP and SSE endpoints.

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