mcp-builder git:20260906.9b0a555A

Immutable. This exact content is served forever at /api/v1/blob/479e94797f762ca0.

---
name: mcp-builder
description: Use when creating a new MCP (Model Context Protocol) server, extending an existing one, or debugging tool discoverability/performance. Guides through research → implementation → test → eval phases with TypeScript-first guidance matching our stack. Trigger on phrases like "build an MCP server", "expose X as an MCP tool", "write MCP tools for Y", "integrate Z via MCP".
metadata:
  model: sonnet
---

# mcp-builder

> **Portable mirror — generated, do not edit.** The canonical skill body lives at
> [`skills/mcp-builder/SKILL.md`](../../../skills/mcp-builder/SKILL.md); read that file for the full instructions.
> This mirror carries only agentskills.io-spec-legal frontmatter so harnesses that
> discover skills under `.agents/skills/` can find and route to the skill.
>
> Regenerate with `node scripts/generate-agents-skills.mjs`.