GitHub MCP Server

Instructions

Implementation Reference

• index.ts:409-415 (handler)

  Handler for the create_pull_request tool: parses input arguments using the schema and delegates to the createPullRequest function in pulls module, returning the result as text content.
  case "create_pull_request": { const args = pulls.CreatePullRequestSchema.parse(request.params.arguments); const pullRequest = await pulls.createPullRequest(args); return { content: [{ type: "text", text: JSON.stringify(pullRequest, null, 2) }], }; }
• operations/pulls.ts:79-88 (schema)

  Zod schema defining the input parameters for creating a pull request, used for validation in both registration and handler.
  export const CreatePullRequestSchema = z.object({ owner: z.string().describe("Repository owner (username or organization)"), repo: z.string().describe("Repository name"), title: z.string().describe("Pull request title"), body: z.string().optional().describe("Pull request body/description"), head: z.string().describe("The name of the branch where your changes are implemented"), base: z.string().describe("The name of the branch you want the changes pulled into"), draft: z.boolean().optional().describe("Whether to create the pull request as a draft"), maintainer_can_modify: z.boolean().optional().describe("Whether maintainers can modify the pull request") });
• index.ts:100-104 (registration)

  Tool registration in the ListTools handler, specifying name, description, and input schema.
  { name: "create_pull_request", description: "Create a new pull request in a GitHub repository", inputSchema: zodToJsonSchema(pulls.CreatePullRequestSchema), },
• operations/pulls.ts:163-177 (helper)

  Core implementation function that makes the GitHub API POST request to create the pull request and parses the response.
  export async function createPullRequest( params: z.infer<typeof CreatePullRequestSchema> ): Promise<z.infer<typeof GitHubPullRequestSchema>> { const { owner, repo, ...options } = CreatePullRequestSchema.parse(params); const response = await githubRequest( `https://api.github.com/repos/${owner}/${repo}/pulls`, { method: "POST", body: options, } ); return GitHubPullRequestSchema.parse(response); }