Skills mcp-builder

install

source · Clone the upstream repo

git clone https://github.com/openclaw/skills

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/openclaw/skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/asimons81/agentic-atlas-mcp-builder" ~/.claude/skills/clawdbot-skills-mcp-builder-5a14f5 && rm -rf "$T"

manifest: skills/asimons81/agentic-atlas-mcp-builder/SKILL.md

MCP Builder Skill

Bootstraps new Model Context Protocol servers from natural language descriptions.

Instructions

When the user requests an MCP server or tool:

Identify the core functionality from the description
Determine the appropriate transport (stdio for CLI, SSE for web)
Scaffold a TypeScript or Python MCP server using the official SDK
Generate tool definitions from API schemas or describe them manually
Include a test harness with example invocations
Provide configuration for Claude Code, Cursor, and OpenCode

Features

TypeScript (recommended) and Python scaffolding
Auto-generates tool definitions from API schemas (OpenAPI, JSON Schema)
STDIO and SSE transport support
Built-in error handling and validation
Test harness with mock LLM calls
Claude Code / Cursor / OpenCode configuration snippets

Architecture

mcp-server/
├── src/
│   ├── index.ts          # Server entry point
│   ├── tools.ts          # Tool definitions
│   └── handlers.ts       # Request handlers
├── package.json
├── tsconfig.json
├── README.md
└── test/
    └── harness.ts        # Test harness

Output Format

Project scaffold (all files)
Tool definitions with descriptions and input schemas
Configuration snippet for Claude Code's
```
mcpServers
```
config
Test invocation example

Example

User: "Build an MCP server for our internal issue tracker with create, list, and close operations"

→ Generate: TypeScript MCP server with 3 tools, JSON Schema for each, test harness, Claude Code config

Dependencies

Requires: Node.js 18+, TypeScript, @modelcontextprotocol/sdk