fix: ensure blank line before footer in PR review body

.github/skills/agentic-workflows/SKILL.md

@@ -31,6 +31,7 @@ Load these files from `github/gh-aw` (they are not available locally).
 - `.github/aw/debug-agentic-workflow.md`
 - `.github/aw/dependabot.md`
 - `.github/aw/deployment-status.md`
+- `.github/aw/designer-mappings.md`
 - `.github/aw/designer.md`
 - `.github/aw/evals.md`
 - `.github/aw/experiments.md`
@@ -100,4 +101,3 @@ After loading the matching workflow prompt or skill, follow it directly:
 - Design long-running multi-agent research workflows: `.github/aw/multi-agent-research.md`
 
 When the task involves OTEL, OTLP, traces, observability backends, or telemetry-driven analysis, also read and follow `skills/otel-queries/SKILL.md` after loading the matching workflow prompt or skill.
-

actions/setup/js/pr_review_buffer.cjs

@@ -352,17 +352,19 @@ function createReviewBuffer() {
 
     // Add footer to review body if we should and we have footer context
     if (shouldAddFooter && footerContext) {
-      body += generateFooterWithMessages(
-        footerContext.workflowName,
-        footerContext.runUrl,
-        footerContext.workflowSource,
-        footerContext.workflowSourceURL,
-        footerContext.triggeringIssueNumber,
-        footerContext.triggeringPRNumber,
-        footerContext.triggeringDiscussionNumber,
-        undefined,
-        { skipDetectionCaution: true }
-      );
+      body +=
+        "\n\n" +
+        generateFooterWithMessages(
+          footerContext.workflowName,
+          footerContext.runUrl,
+          footerContext.workflowSource,
+          footerContext.workflowSourceURL,
+          footerContext.triggeringIssueNumber,
+          footerContext.triggeringPRNumber,
+          footerContext.triggeringDiscussionNumber,
+          undefined,
+          { skipDetectionCaution: true }
+        );
 
       const callerWorkflowId = process.env.GH_AW_CALLER_WORKFLOW_ID || "";
       if (callerWorkflowId) {

actions/setup/js/pr_review_buffer.test.cjs

@@ -833,6 +833,39 @@ describe("pr_review_buffer (factory pattern)", () => {
       expect(callArgs.body).toContain("test-workflow");
     });
 
+    it("should separate body from footer with a blank line for proper markdown rendering", async () => {
+      buffer.addComment({ path: "test.js", line: 1, body: "comment" });
+      buffer.setReviewMetadata("Review body content", "COMMENT");
+      buffer.setReviewContext({
+        repo: "owner/repo",
+        repoParts: { owner: "owner", repo: "repo" },
+        pullRequestNumber: 42,
+        pullRequest: { head: { sha: "abc123" } },
+      });
+      buffer.setFooterContext({
+        workflowName: "test-workflow",
+        runUrl: "https://github.com/owner/repo/actions/runs/123",
+        workflowSource: "owner/repo/workflows/test.md@v1",
+        workflowSourceURL: "https://github.com/owner/repo/blob/main/test.md",
+      });
+
+      mockGithub.rest.pulls.createReview.mockResolvedValue({
+        data: {
+          id: 403,
+          html_url: "https://github.com/owner/repo/pull/42#pullrequestreview-403",
+        },
+      });
+
+      const result = await buffer.submitReview();
+
+      expect(result.success).toBe(true);
+      const callArgs = mockGithub.rest.pulls.createReview.mock.calls[0][0];
+      // The footer blockquote must be preceded by at least one blank line
+      // so Markdown parses the "> Generated by" quote section correctly.
+      expect(callArgs.body).toMatch(/\n\n> /);
+      expect(callArgs.body).not.toMatch(/[^\n]\n> /);
+    });
+
     it("should retry with COMMENT when APPROVE is rejected on own PR", async () => {
       buffer.addComment({ path: "test.js", line: 1, body: "comment" });
       buffer.setReviewMetadata("LGTM", "APPROVE");