diff --git a/gitnexus/src/cli/ai-context.ts b/gitnexus/src/cli/ai-context.ts
index c6b098807..dec8f420d 100644
--- a/gitnexus/src/cli/ai-context.ts
+++ b/gitnexus/src/cli/ai-context.ts
@@ -384,7 +384,7 @@ async function upsertGitNexusSection(
         const statsLine = noStats
           ? `${statsPrefix} **${projectName}**`
           : `${statsPrefix} **${projectName}** (${newStatsInner})`;
-        const updatedSection = existingSection.replace(statsPattern, statsLine);
+        const updatedSection = existingSection.replace(statsPattern, () => statsLine);
         // Count-only delta — leave the committed lean block alone (#2907). A
         // project rename, or --no-stats dropping the parenthetical, still writes.
         if (stripVolatileCounts(updatedSection) === stripVolatileCounts(existingSection)) {
diff --git a/gitnexus/test/unit/ai-context.test.ts b/gitnexus/test/unit/ai-context.test.ts
index 418274073..75056a836 100644
--- a/gitnexus/test/unit/ai-context.test.ts
+++ b/gitnexus/test/unit/ai-context.test.ts
@@ -1511,7 +1511,7 @@ indexed by GitNexus as **OldName** (10 symbols, 20 relationships, 3 execution fl
 `;
       await fs.writeFile(path.join(dir, 'CLAUDE.md'), original, 'utf-8');
 
-      const result = await generateAIContextFiles(dir, storage, 'NewName', {
+      const result = await generateAIContextFiles(dir, storage, 'Repo$1Name', {
         nodes: 55,
         edges: 66,
         processes: 7,
@@ -1519,7 +1519,7 @@ indexed by GitNexus as **OldName** (10 symbols, 20 relationships, 3 execution fl
 
       expect(result.files).toContain('CLAUDE.md (updated)');
       expect(await fs.readFile(path.join(dir, 'CLAUDE.md'), 'utf-8')).toContain(
-        'indexed by GitNexus as **NewName** (55 symbols, 66 relationships, 7 execution flows). Custom.',
+        'indexed by GitNexus as **Repo$1Name** (55 symbols, 66 relationships, 7 execution flows). Custom.',
       );
     } finally {
       await fs.rm(dir, { recursive: true, force: true });