diff --git a/src/__tests__/prompts.test.ts b/src/__tests__/prompts.test.ts
index b2ec7d4..d7263f1 100644
--- a/src/__tests__/prompts.test.ts
+++ b/src/__tests__/prompts.test.ts
@@ -35,7 +35,7 @@ describe("formatItem", () => {
     expect(result).toContain("作者: @alice");
     expect(result).toContain("评论: 5");
     expect(result).toContain("👍: 3");
-    expect(result).toContain("链接: https://github.com/org/repo/issues/1");
+    expect(result).toContain("链接: org/repo Issue #1");
     expect(result).toContain("摘要: Some body text");
   });
 
diff --git a/src/github.ts b/src/github.ts
index 35c4bde..40f41ad 100644
--- a/src/github.ts
+++ b/src/github.ts
@@ -184,8 +184,18 @@ export async function fetchSkillsData(repo: string): Promise<{ prs: GitHubItem[]
 const GITHUB_ISSUE_BODY_LIMIT = 65536;
 const TRUNCATION_NOTICE = "\n\n---\n> ⚠️ 内容超过 GitHub Issue 上限，完整报告见提交的 Markdown 文件。";
 
+/**
+ * Break GitHub URLs in issue body to prevent cross-repository references.
+ * Inserts a zero-width space in "github.com" so GitHub's auto-linker
+ * won't create "mentioned this issue" notifications on external repos.
+ */
+function neutralizeGitHubRefs(text: string): string {
+  return text.replace(/https:\/\/github\.com\//g, "https://github\u200B.com/");
+}
+
 export async function createGitHubIssue(title: string, body: string, label: string): Promise<string> {
   const digestRepo = process.env["DIGEST_REPO"] ?? "";
+  body = neutralizeGitHubRefs(body);
   if (body.length > GITHUB_ISSUE_BODY_LIMIT) {
     body = body.slice(0, GITHUB_ISSUE_BODY_LIMIT - TRUNCATION_NOTICE.length) + TRUNCATION_NOTICE;
   }
diff --git a/src/prompts.ts b/src/prompts.ts
index d55f778..507ae97 100644
--- a/src/prompts.ts
+++ b/src/prompts.ts
@@ -39,10 +39,14 @@ export function formatItem(item: GitHubItem, lang: "zh" | "en" = "zh"): string {
           summary: "Summary",
         }
       : { author: "作者", created: "创建", updated: "更新", comments: "评论", url: "链接", summary: "摘要" };
+  // Extract "owner/repo" from html_url to avoid full GitHub URLs that trigger cross-references
+  const repoSlug = item.html_url.replace(/^https:\/\/github\.com\//, "").replace(/\/(issues|pull)\/\d+$/, "");
+  const itemKind = item.html_url.includes("/pull/") ? "PR" : "Issue";
+  const refStr = `${repoSlug} ${itemKind} #${item.number}`;
   return [
     `#${item.number} [${item.state.toUpperCase()}]${labelStr} ${item.title}`,
     `  ${t.author}: @${item.user.login} | ${t.created}: ${item.created_at.slice(0, 10)} | ${t.updated}: ${item.updated_at.slice(0, 10)} | ${t.comments}: ${item.comments} | 👍: ${item.reactions?.["+1"] ?? 0}`,
-    `  ${t.url}: ${item.html_url}`,
+    `  ${t.url}: ${refStr}`,
     `  ${t.summary}: ${body}${ellipsis}`,
   ].join("\n");
 }