diff --git a/skills/project-bootstrap/assets/AGENTS.md.template b/skills/project-bootstrap/assets/AGENTS.md.template
index 4c3b6df..0119978 100644
--- a/skills/project-bootstrap/assets/AGENTS.md.template
+++ b/skills/project-bootstrap/assets/AGENTS.md.template
@@ -4,6 +4,7 @@
 # Inter-session mail channel is Mappa (mcp__mappa__inbox_send/inbox_monitor),
 # NOT files. This line opts the project into inbox delivery at session start:
 inbox monitor: raise on start
+session sync: write to mappa
 
 # Search rule