GitHub Enterprise MCP Server

Instructions

Implementation Reference

• src/tools/pull-requests.ts:395-419 (handler)

  The handler function that executes the tool logic: parses input using Zod schema, calls GitHub API to list reviews for the specified pull request, maps the response, and handles errors.

  export async function getPullRequestReviews(args: unknown): Promise<any> {
    const { owner, repo, pull_number } = GetPullRequestReviewsSchema.parse(args);
    const github = getGitHubApi();
  
    return tryCatchAsync(async () => {
      const { data } = await github.getOctokit().pulls.listReviews({
        owner,
        repo,
        pull_number,
      });
  
      return data.map((review) => ({
        id: review.id,
        user: review.user ? {
          login: review.user.login,
          id: review.user.id,
        } : null,
        body: review.body,
        state: review.state,
        commit_id: review.commit_id,
        submitted_at: review.submitted_at,
        url: review.html_url,
      }));
    }, 'Failed to get pull request reviews');
  }

• src/server.ts:1000-1022 (schema)

  MCP tool schema definition including input schema for the 'get-pull-request-reviews' tool, registered in the listTools response.

  {
    name: 'get-pull-request-reviews',
    description: 'Get the reviews on a pull request',
    inputSchema: {
      type: 'object',
      properties: {
        owner: {
          type: 'string',
          description: 'Repository owner (username or organization)',
        },
        repo: {
          type: 'string',
          description: 'Repository name',
        },
        pull_number: {
          type: 'number',
          description: 'Pull request number',
        },
      },
      required: ['owner', 'repo', 'pull_number'],
      additionalProperties: false,
    },
  },

• src/server.ts:1250-1252 (registration)

  Registration of the tool handler in the switch statement for CallToolRequest.

  case 'get-pull-request-reviews':
    result = await getPullRequestReviews(parsedArgs);
    break;

• src/utils/validation.ts:178-180 (schema)

  Zod schema for input validation used within the handler function.

  export const GetPullRequestReviewsSchema = OwnerRepoSchema.extend({
    pull_number: z.number().int().positive(),
  });