Use modern noreply email for co-author trailers (#1369)

src/create-prompt/index.ts

@@ -122,6 +122,7 @@ export function prepareContext(
 
   // Extract trigger username and comment data based on event type
   let triggerUsername: string | undefined;
+  let triggerUserId: number | undefined;
   let commentId: string | undefined;
   let commentBody: string | undefined;
 
@@ -129,15 +130,19 @@ export function prepareContext(
     commentId = context.payload.comment.id.toString();
     commentBody = context.payload.comment.body;
     triggerUsername = context.payload.comment.user.login;
+    triggerUserId = context.payload.comment.user.id;
   } else if (isPullRequestReviewEvent(context)) {
     commentBody = context.payload.review.body ?? "";
     triggerUsername = context.payload.review.user.login;
+    triggerUserId = context.payload.review.user.id;
   } else if (isPullRequestReviewCommentEvent(context)) {
     commentId = context.payload.comment.id.toString();
     commentBody = context.payload.comment.body;
     triggerUsername = context.payload.comment.user.login;
+    triggerUserId = context.payload.comment.user.id;
   } else if (isIssuesEvent(context)) {
     triggerUsername = context.payload.issue.user.login;
+    triggerUserId = context.payload.issue.user.id;
   }
 
   // Create infrastructure fields object
@@ -146,6 +151,7 @@ export function prepareContext(
     claudeCommentId,
     triggerPhrase,
     ...(triggerUsername && { triggerUsername }),
+    ...(triggerUserId && { triggerUserId }),
     ...(prompt && { prompt }),
     ...(claudeBranch && { claudeBranch }),
   };
@@ -394,9 +400,16 @@ function getCommitInstructions(
   context: PreparedContext,
   useCommitSigning: boolean,
 ): string {
+  const triggerName = githubData.triggerDisplayName ?? context.triggerUsername;
+  const triggerEmail =
+    context.triggerUserId && context.triggerUsername
+      ? `${context.triggerUserId}+${context.triggerUsername}@users.noreply.github.com`
+      : context.triggerUsername
+        ? `${context.triggerUsername}@users.noreply.github.com`
+        : undefined;
   const coAuthorLine =
-    (githubData.triggerDisplayName ?? context.triggerUsername) !== "Unknown"
+    triggerName && triggerName !== "Unknown" && triggerEmail
-      ? `Co-authored-by: ${githubData.triggerDisplayName ?? context.triggerUsername} <${context.triggerUsername}@users.noreply.github.com>`
+      ? `Co-authored-by: ${triggerName} <${triggerEmail}>`
       : "";
 
   if (useCommitSigning) {

src/create-prompt/types.ts

@@ -5,6 +5,7 @@ export type CommonFields = {
   claudeCommentId: string;
   triggerPhrase: string;
   triggerUsername?: string;
+  triggerUserId?: number;
   prompt?: string;
   claudeBranch?: string;
 };

test/create-prompt.test.ts

@@ -495,6 +495,32 @@ describe("generatePrompt", () => {
     );
   });
 
+  test("should use numeric GitHub noreply address when trigger user id is provided", async () => {
+    const envVars: PreparedContext = {
+      repository: "owner/repo",
+      claudeCommentId: "12345",
+      triggerPhrase: "@claude",
+      triggerUsername: "johndoe",
+      triggerUserId: 123456,
+      eventData: {
+        eventName: "issue_comment",
+        commentId: "67890",
+        isPR: false,
+        issueNumber: "123",
+        baseBranch: "main",
+        claudeBranch: "claude/issue-67890-20240101-1200",
+        commentBody: "@claude please fix this",
+      },
+    };
+
+    const prompt = await generatePrompt(envVars, mockGitHubData, false, "tag");
+
+    expect(prompt).toContain(
+      "Co-authored-by: johndoe <123456+johndoe@users.noreply.github.com>",
+    );
+    expect(prompt).not.toContain("<johndoe@users.noreply.github.com>");
+  });
+
   test("should include PR-specific instructions only for PR events", async () => {
     const envVars: PreparedContext = {
       repository: "owner/repo",