diff --git a/packages/agentctx/src/hooks/digest.ts b/packages/agentctx/src/hooks/digest.ts
index 1128dd2..d5cdf3b 100644
--- a/packages/agentctx/src/hooks/digest.ts
+++ b/packages/agentctx/src/hooks/digest.ts
@@ -17,7 +17,7 @@ export const SESSION_START_MAX_TOKENS = 1500;
 /**
  * Digest sections in priority order. Truncation drops from the bottom of
  * this list (SPEC §4): profile ~200t, decisions ~500t, handover ~400t,
- * reinforced global preferences ~200t, MCP index hint ~100t. The per-section
+ * reinforced global preferences ~200t, MCP index hint ~100t, drift hint ~60t. The per-section
  * targets are honored at digest *build* time; composition here only enforces
  * the total.
  */