diff --git a/README.md b/README.md
index a393cf44..63c70d8d 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@
     *   [5.4. The Incremental Elite Engine](#54-the-incremental-elite-engine)
     *   [5.5. Decoupled Knowledge Lifecycle (V2 Architecture)](#55-decoupled-knowledge-lifecycle-v2-architecture)
     *   [5.6. Multi-Language Support Policy](#56-multi-language-support-policy)
-6.  [6. The Unified Agentic Database (Knowledge Graph)](#6-the-unified-agentic-database-knowledge-graph)
+6.  [6. The Unified Agentic Database (Coexistence Knowledge Graph)](#6-the-unified-agentic-database-coexistence-knowledge-graph)
     *   [6.1. Database Components](#61-database-components)
     *   [6.2. The 'Database-First' Reasoning Protocol (Zero-Redundancy)](#62-the-database-first-reasoning-protocol-zero-redundancy)
     *   [6.3. Database Lifecycle and Hygiene](#63-database-lifecycle-and-hygiene)
diff --git a/src/safety_readme.py b/src/safety_readme.py
index 843deb33..3fb2a981 100644
--- a/src/safety_readme.py
+++ b/src/safety_readme.py
@@ -8,7 +8,7 @@ REQUIRED_SECTIONS = [
     "3. The Agentic Stack",
     "4. The 2026 Architectural Shift",
     "5. Dual-Edition Architecture (V1 vs V2)",
-    "6. The Unified Agentic Database (Knowledge Graph)",
+    "6. The Unified Agentic Database (Coexistence Knowledge Graph)",
     "7. AI Economic Architecture and Cost Analysis",
     "8. The Agentic AI Engine",
     "9. GitHub Workflows and Automation",
diff --git a/src/v2_optimizer.py b/src/v2_optimizer.py
index 2c9a9156..88df59b8 100644
--- a/src/v2_optimizer.py
+++ b/src/v2_optimizer.py
@@ -106,12 +106,13 @@ class V2VisionEngine:
         
         # Mandate 30: MD039 - Global Data Sanitization (Purge all whitespace/hidden chars from titles)
         for url in list(self.inventory.keys()):
-            if isinstance(self.inventory[url], dict) and "title" in self.inventory[url]:
-                # Purge all known whitespace characters (standard, non-breaking, thin, etc.)
+            if isinstance(self.inventory[url], dict) and self.inventory[url].get("title") is not None:
                 t = self.inventory[url]["title"]
-                t = re.sub(r'^[\s\u00a0\u200b\u1680\u180e\u2000-\u200a\u2028\u2029\u202f\u205f\u3000]+', '', t)
-                t = re.sub(r'[\s\u00a0\u200b\u1680\u180e\u2000-\u200a\u2028\u2029\u202f\u205f\u3000]+$', '', t)
-                self.inventory[url]["title"] = t
+                if isinstance(t, str):
+                    # Purge all known whitespace characters (standard, non-breaking, thin, etc.)
+                    t = re.sub(r'^[\s\u00a0\u200b\u1680\u180e\u2000-\u200a\u2028\u2029\u202f\u205f\u3000]+', '', t)
+                    t = re.sub(r'[\s\u00a0\u200b\u1680\u180e\u2000-\u200a\u2028\u2029\u202f\u205f\u3000]+$', '', t)
+                    self.inventory[url]["title"] = t
         
         # 0. Mandate Sync
         try: