agentic-mcp-server-builder_skill

Overview

This skill scaffolds minimal MCP server projects and generates baseline tool contract checks from a structured tool list. It produces a starter file map, contract summaries for each tool, and can materialize starter files when run outside dry-run mode. The goal is to accelerate MCP-ready server setup with clear input/output schemas and deterministic tool boundaries.

How this skill works

You provide a server name and a list of tools with short descriptions and schemas. The skill generates a scaffold file map, a contract summary for each tool, and optional starter files when not in dry-run. It also emits baseline contract checks that highlight required inputs, outputs, and determinism expectations for MCP compliance.

When to use it

• Bootstrapping a new MCP server with multiple tools
• Defining clear tool schemas and input/output contracts before coding business logic
• Creating a reproducible starter layout for team handoff or onboarding
• Validating that an existing project matches MCP contract expectations
• Generating lightweight artifacts for archival or backup of tool definitions

Best practices

• Keep each tool small and focused with explicit input and output schemas
• Use deterministic outputs where possible and document nondeterministic behavior
• Run in dry-run first to review file map and contract checks before writing files
• Include schema examples and edge-case test inputs in the generated contracts
• Maintain one source of truth for tool definitions to simplify updates and archives

Example use cases

• Define a chat-processing tool list and generate an MCP server scaffold to implement handlers
• Convert a set of Python utility functions into MCP-ready tools with validated input/output contracts
• Create an archived snapshot of all tool contracts and starter files for backup or audit
• Onboard new developers with a generated project layout and contract summary to speed implementation