npm install mcpcraft-sdk zod
npm install -D @types/node typescript tsx

import { createServer, tool, resource } from "mcpcraft-sdk"

const GITHUB_TOKEN = process.env.GITHUB_TOKEN!
const GITHUB_API = "https://api.github.com"

const server = createServer({ name: "github-server" })

async function gh(path: string, options?: RequestInit) {
  const res = await fetch(`${GITHUB_API}${path}`, {
    ...options,
    headers: {
      Authorization: `Bearer ${GITHUB_TOKEN}`,
      Accept: "application/vnd.github+json",
      "User-Agent": "mcpcraft-github-server",
      ...options?.headers,
    }
  })
  if (!res.ok) {
    throw new Error(`GitHub API error: ${res.status} ${res.statusText}`)
  }
  return res.json()
}

// ─── Tools ───

server.add(tool({
  name: "create_issue",
  description: "Create a GitHub issue in a repository",
  input: {
    owner: { type: "string", description: "Repository owner" },
    repo: { type: "string", description: "Repository name" },
    title: { type: "string", description: "Issue title" },
    body: { type: "string", description: "Issue body" },
  },
  run: async ({ owner, repo, title, body }) => {
    return gh(`/repos/${owner}/${repo}/issues`, {
      method: "POST",
      body: JSON.stringify({ title, body })
    })
  }
}))

server.add(tool({
  name: "list_issues",
  description: "List open issues in a repository",
  input: {
    owner: { type: "string", description: "Repository owner" },
    repo: { type: "string", description: "Repository name" },
    state: { type: "string", description: "Issue state (open, closed, all)" },
  },
  run: async ({ owner, repo, state = "open" }) => {
    return gh(`/repos/${owner}/${repo}/issues?state=${state}`)
  }
}))

server.add(tool({
  name: "get_repo",
  description: "Get repository information",
  input: {
    owner: { type: "string", description: "Repository owner" },
    repo: { type: "string", description: "Repository name" },
  },
  run: async ({ owner, repo }) => {
    return gh(`/repos/${owner}/${repo}`)
  }
}))

server.add(tool({
  name: "list_pull_requests",
  description: "List pull requests in a repository",
  input: {
    owner: { type: "string", description: "Repository owner" },
    repo: { type: "string", description: "Repository name" },
    state: { type: "string", description: "PR state (open, closed, all)" },
  },
  run: async ({ owner, repo, state = "open" }) => {
    return gh(`/repos/${owner}/${repo}/pulls?state=${state}`)
  }
}))

server.add(tool({
  name: "create_review_comment",
  description: "Add a comment to a pull request",
  input: {
    owner: { type: "string", description: "Repository owner" },
    repo: { type: "string", description: "Repository name" },
    pullNumber: { type: "number", description: "Pull request number" },
    body: { type: "string", description: "Comment body" },
  },
  run: async ({ owner, repo, pullNumber, body }) => {
    return gh(`/repos/${owner}/${repo}/issues/${pullNumber}/comments`, {
      method: "POST",
      body: JSON.stringify({ body })
    })
  }
}))

// ─── Resources ───

server.addResource(resource({
  name: "repo-readme",
  uri: "github://{owner}/{repo}/readme",
  description: "The repository README content",
  mimeType: "text/markdown",
  async read(uri) {
    const [, owner, repo] = uri.pathname.split("/")
    const data = await gh(`/repos/${owner}/${repo}/readme`)
    return Buffer.from(data.content, "base64").toString("utf-8")
  }
}))

server.start()

{
  "mcpServers": {
    "github-server": {
      "command": "node",
      "args": ["dist/github-server.js"],
      "env": {
        "GITHUB_TOKEN": "ghp_..."
      }
    }
  }
}