AugmentClaude
BackendDevOps

MCP Server Builder

By Hmbown· Hmbown/CodeWhale· 0

Design, build, and debug Model Context Protocol servers with stdio and HTTP/SSE transports.

Installation

  1. Make sure Claude is on your device and in your terminal.

    Skills load from ~/.claude/skills/ when Claude Code starts up — so you need it on your machine first. If you don't have it yet, install it once with the command below, then run claude in any terminal to verify.

    One-time setup
    npm i -g @anthropic-ai/claude-code

    Already have it? Skip ahead.

  2. Paste into Claude Code or into your terminal.
    Install
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    This copies the whole skill folder into ~/.claude/skills/mcp-builder-hmbown/ — the SKILL.md plus any scripts, reference docs, or templates the skill ships with. Safe default: works for every skill.

    Faster alternative (instruction-only skills)

    Skips the clone and grabs only the SKILL.md file. Don't use this if the skill ships Python scripts, reference markdowns, or asset templates — they won't be downloaded and the skill will fail when it tries to load them.

    Quick install (SKILL.md only)
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  3. Restart Claude Code.

    Quit and reopen Claude Code (or any other agent that loads from ~/.claude/skills/). New skills are picked up on startup.

  4. Just ask Claude.

    Skills auto-activate when your request matches the skill's description — no slash command needed. Trigger phrases live in the skill's own frontmatter; you can read them in the “What this skill does” section above.

Prefer to read the source first? Open on GitHub.

When Claude uses it

Design, build, configure, or debug Model Context Protocol servers for codewhale, including stdio and HTTP/SSE transports.

What this skill does

MCP Builder

Use this skill when the user asks to create, configure, or debug an MCP server or tool integration.

Design Rules

  • Prefer stdio MCP servers for local tools and HTTP/SSE for remote services.
  • Keep tool schemas small, typed, and explicit. Return structured JSON where possible.
  • Put secrets in environment variables, never in committed config.
  • For HTTP/SSE clients, send Accept: application/json, text/event-stream by default unless the server explicitly requires something else.
  • Add timeouts and clear error messages around external APIs.

DeepSeek Setup

Common commands:

deepseek mcp init
deepseek mcp add my-server --command node --arg server.js
deepseek mcp add remote-server --url http://127.0.0.1:3000/mcp
deepseek mcp list
deepseek mcp validate
deepseek mcp tools

HTTP/SSE entries can include per-server headers in ~/.deepseek/mcp.json when credentials or custom routing headers are required.

Workflow

  1. Define the service boundary and the minimum useful tools.
  2. Choose transport and credential handling.
  3. Implement the server using a maintained MCP SDK when available.
  4. Add the server with deepseek mcp add or edit ~/.deepseek/mcp.json.
  5. Run deepseek mcp validate, then deepseek mcp tools.
  6. Test one happy path and one failure path before calling it done.

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