switch to fastmcp

mcp/comment.ts

@@ -0,0 +1,66 @@
+import { Octokit } from "@octokit/rest";
+import { type } from "arktype";
+import { resolveRepoContext } from "../utils/repo-context.ts";
+import { tool } from "./shared.ts";
+
+export const Comment = type({
+  issueNumber: type.number.describe("the issue number to comment on"),
+  body: type.string.describe("the comment body content"),
+});
+
+export const CommentTool = tool({
+  name: "create_issue_comment",
+  description: "Create a comment on a GitHub issue",
+  parameters: Comment,
+  execute: async ({ issueNumber, body }: { issueNumber: number; body: string }) => {
+    try {
+      const githubInstallationToken = process.env.GITHUB_INSTALLATION_TOKEN;
+      if (!githubInstallationToken) {
+        throw new Error("GITHUB_INSTALLATION_TOKEN environment variable is required");
+      }
+
+      const repoContext = resolveRepoContext();
+
+      const octokit = new Octokit({
+        auth: githubInstallationToken,
+      });
+
+      const result = await octokit.rest.issues.createComment({
+        owner: repoContext.owner,
+        repo: repoContext.name,
+        issue_number: issueNumber,
+        body: body,
+      });
+
+      return {
+        content: [
+          {
+            type: "text",
+            text: JSON.stringify(
+              {
+                success: true,
+                commentId: result.data.id,
+                url: result.data.html_url,
+                body: result.data.body,
+              },
+              null,
+              2
+            ),
+          },
+        ],
+      };
+    } catch (error) {
+      const errorMessage = error instanceof Error ? error.message : String(error);
+      return {
+        content: [
+          {
+            type: "text",
+            text: `Error creating comment: ${errorMessage}`,
+          },
+        ],
+        error: errorMessage,
+        isError: true,
+      };
+    }
+  },
+});