GitHub MCP Server

Instructions

Implementation Reference

• operations/pulls.ts:225-238 (handler)

  Core handler function that executes the GitHub API PUT request to merge the specified pull request.

  export async function mergePullRequest(
    owner: string,
    repo: string,
    pullNumber: number,
    options: Omit<z.infer<typeof MergePullRequestSchema>, 'owner' | 'repo' | 'pull_number'>
  ): Promise<any> {
    return githubRequest(
      `https://api.github.com/repos/${owner}/${repo}/pulls/${pullNumber}/merge`,
      {
        method: 'PUT',
        body: options,
      }
    );
  }

• operations/pulls.ts:122-129 (schema)

  Zod input schema defining parameters for the merge_pull_request tool.

  export const MergePullRequestSchema = z.object({
    owner: z.string().describe("Repository owner (username or organization)"),
    repo: z.string().describe("Repository name"),
    pull_number: z.number().describe("Pull request number"),
    commit_title: z.string().optional().describe("Title for the automatic commit message"),
    commit_message: z.string().optional().describe("Extra detail to append to automatic commit message"),
    merge_method: z.enum(['merge', 'squash', 'rebase']).optional().describe("Merge method to use")
  });

• index.ts:170-174 (registration)

  Registration of the merge_pull_request tool in the MCP server's list of tools.

  {
    name: "merge_pull_request",
    description: "Merge a pull request",
    inputSchema: zodToJsonSchema(pulls.MergePullRequestSchema)
  },

• index.ts:524-531 (handler)

  Dispatch handler in the main tool request switch statement that parses arguments and invokes the mergePullRequest function.

  case "merge_pull_request": {
    const args = pulls.MergePullRequestSchema.parse(request.params.arguments);
    const { owner, repo, pull_number, ...options } = args;
    const result = await pulls.mergePullRequest(owner, repo, pull_number, options);
    return {
      content: [{ type: "text", text: JSON.stringify(result, null, 2) }],
    };
  }