mcp-github

Instructions

Implementation Reference

• src/operations/pulls.ts:298-317 (handler)

  The main handler function that executes the tool logic by making a PUT request to the GitHub API endpoint for dismissing a pull request review.

  export async function dismissPullRequestReview(
    github_pat: string,
    owner: string,
    repo: string,
    pullNumber: number,
    reviewId: number,
    message: string
  ): Promise<z.infer<typeof PullRequestReviewSchema>> {
    const response = await githubRequest(
      github_pat,
      `https://api.github.com/repos/${owner}/${repo}/pulls/${pullNumber}/reviews/${reviewId}/dismissals`,
      {
        method: 'PUT',
        body: {
          message,
        },
      }
    );
    return PullRequestReviewSchema.parse(response);
  }

• src/operations/pulls.ts:143-149 (schema)

  Public Zod input schema for the tool, defining parameters like owner, repo, pull_number, review_id, and message.

  export const DismissPullRequestReviewSchema = 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"),
    review_id: z.number().describe("The ID of the review"),
    message: z.string().describe("The message explaining why the review was dismissed")
  });

• src/operations/pulls.ts:151-153 (schema)

  Internal Zod schema extending the public schema to include the required GitHub Personal Access Token.

  export const _DismissPullRequestReviewSchema = DismissPullRequestReviewSchema.extend({
    github_pat: z.string().describe("GitHub Personal Access Token"),
  });

• src/index.ts:206-209 (registration)

  Tool registration in the MCP server's list of tools, providing name, description, and converted input schema.

    name: "dismiss_pull_request_review",
    description: "Dismiss a pull request review",
    inputSchema: zodToJsonSchema(pulls.DismissPullRequestReviewSchema),
  },

• src/index.ts:608-617 (registration)

  Dispatch handler in the MCP server's CallToolRequest that parses arguments and invokes the dismissPullRequestReview function.

  case "dismiss_pull_request_review": {
    const args = pulls._DismissPullRequestReviewSchema.parse(params.arguments);
    const { github_pat, owner, repo, pull_number, review_id, message } = args;
    const result = await pulls.dismissPullRequestReview(
      github_pat, owner, repo, pull_number, review_id, message
    );
    return {
      content: [{ type: "text", text: JSON.stringify(result, null, 2) }],
    };
  }