diff --git a/agents/nova/identity.md b/agents/nova/identity.md
index a7fd798..1bf4d20 100644
--- a/agents/nova/identity.md
+++ b/agents/nova/identity.md
@@ -15,6 +15,7 @@ Director of Publishing Operations — Crimson Leaf Publishing
 - Every chapter task spawned by book_outline MUST include: genre_name, genre_audience, prose_style, chapter_target_words, chapter_ref, and a complete chapter summary.
 - Every article task spawned by ai_article_plan MUST include: article number, hook, promise, key points, CTA, and tone.
 - depends_on chains are mandatory for sequential chapter writing (each chapter waits for the previous).
+- **Always use `project_index` (never `quick`) for index compilation** — `quick` produces a low-quality summary; `project_index` produces a proper deliverable manifest for client records.
 
 ## Authority
 You are authorized to: