fix: add missing review_comments webhook handler

src/formatters/webhook-events.ts

@@ -10,6 +10,7 @@ import type {
   IssueCommentPayload,
   IssuesPayload,
   PullRequestPayload,
+  PullRequestReviewCommentPayload,
   PullRequestReviewPayload,
   PushPayload,
   ReleasePayload,
@@ -179,6 +180,26 @@ export function formatPullRequestReview(
   return "";
 }
 
+export function formatPullRequestReviewComment(
+  payload: PullRequestReviewCommentPayload
+): string {
+  const { action, comment, pull_request, repository } = payload;
+
+  if (action === "created") {
+    const shortComment = comment.body.split("\n")[0].substring(0, 100);
+
+    return (
+      `💬 **Review Comment on PR #${pull_request.number}**\n` +
+      `**${repository.full_name}**\n\n` +
+      `"${shortComment}${comment.body.length > 100 ? "..." : ""}"\n` +
+      `👤 ${comment.user?.login || "unknown"}\n` +
+      `🔗 ${comment.html_url}`
+    );
+  }
+
+  return "";
+}
+
 export function formatFork(payload: ForkPayload): string {
   const { forkee, repository, sender } = payload;
 

src/github-app/event-processor.ts

@@ -9,6 +9,7 @@ import {
   formatIssueComment,
   formatPullRequest,
   formatPullRequestReview,
+  formatPullRequestReviewComment,
   formatPush,
   formatRelease,
   formatWatch,
@@ -26,6 +27,7 @@ import type {
   IssueCommentPayload,
   IssuesPayload,
   PullRequestPayload,
+  PullRequestReviewCommentPayload,
   PullRequestReviewPayload,
   PushPayload,
   ReleasePayload,
@@ -232,6 +234,22 @@ export class EventProcessor {
     );
   }
 
+  /**
+   * Process a pull request review comment webhook event
+   * Branch filter applies to the PR's base branch (merge target)
+   */
+  async onPullRequestReviewComment(event: PullRequestReviewCommentPayload) {
+    const { pull_request, repository } = event;
+    const baseBranch = pull_request.base.ref;
+    await this.processEvent(
+      event,
+      "review_comments",
+      formatPullRequestReviewComment,
+      `PR review comment event: ${event.action} - ${repository.full_name}#${pull_request.number}`,
+      { branch: baseBranch }
+    );
+  }
+
   /**
    * Process branch create/delete events
    * Branch filter applies to the branch being created/deleted

src/index.ts

@@ -103,6 +103,10 @@ githubApp.webhooks.on("pull_request_review", async ({ payload }) => {
   await eventProcessor.onPullRequestReview(payload);
 });
 
+githubApp.webhooks.on("pull_request_review_comment", async ({ payload }) => {
+  await eventProcessor.onPullRequestReviewComment(payload);
+});
+
 githubApp.webhooks.on("create", async ({ payload }) => {
   await eventProcessor.onBranchEvent(payload, "create");
 });

src/types/webhooks.ts

@@ -18,6 +18,8 @@ export type ReleasePayload = WebhookPayload<"release">;
 export type WorkflowRunPayload = WebhookPayload<"workflow_run">;
 export type IssueCommentPayload = WebhookPayload<"issue_comment">;
 export type PullRequestReviewPayload = WebhookPayload<"pull_request_review">;
+export type PullRequestReviewCommentPayload =
+  WebhookPayload<"pull_request_review_comment">;
 export type InstallationPayload = WebhookPayload<"installation">;
 export type InstallationRepositoriesPayload =
   WebhookPayload<"installation_repositories">;