diff --git a/test/unit/config-templates.test.ts b/test/unit/config-templates.test.ts
index dab758b237..8357971ebb 100644
--- a/test/unit/config-templates.test.ts
+++ b/test/unit/config-templates.test.ts
@@ -5,6 +5,8 @@ import {
   gateConfigToJson,
   parseFocusManifest,
   parseFocusManifestContent,
+  resolveReviewPromptOverrides,
+  reviewConfigToJson,
 } from "../../src/signals/focus-manifest";
 
 // #1682: self-host operators need discoverable, copy-paste templates under config/examples/ that
@@ -71,6 +73,20 @@ describe("config/examples review templates (#1682)", () => {
     }
   });
 
+  it("resolves review.changed_files_summary via manifest parse + boolean helper (#2146)", () => {
+    const full = readConfigExample("gittensory.full.yml");
+    expect(full).toMatch(/# changed_files_summary:/);
+    expect(parseFocusManifest({}).review.changedFilesSummary).toBeNull();
+    expect(resolveReviewPromptOverrides(parseFocusManifest({})).changedFilesSummary).toBe(false);
+    const on = parseFocusManifest({ review: { changed_files_summary: true } });
+    expect(on.review.changedFilesSummary).toBe(true);
+    expect(resolveReviewPromptOverrides(on).changedFilesSummary).toBe(true);
+    expect(reviewConfigToJson(on.review)).toEqual({ changed_files_summary: true });
+    const off = parseFocusManifest({ review: { changed_files_summary: false } });
+    expect(off.review.changedFilesSummary).toBe(false);
+    expect(resolveReviewPromptOverrides(off).changedFilesSummary).toBe(false);
+  });
+
   it("parses gittensory.minimal.yml with zero warnings and enables no agent actions", () => {
     const manifest = parseFocusManifestContent(readConfigExample("gittensory.minimal.yml"), "repo_file");
     expect(manifest.warnings).toEqual([]);