diff --git a/.claude/scripts/sync.sh b/.claude/scripts/sync.sh
index 91f4a54..ebbf3b0 100755
--- a/.claude/scripts/sync.sh
+++ b/.claude/scripts/sync.sh
@@ -197,7 +197,72 @@ if [ "$INCOMING_COUNT" -gt 0 ] && [ -n "$LOCAL_BEFORE" ]; then
     fi
 fi
 
-# Phase 6: Summary
+# Phase 6: Vault sync
+echo ""
+echo "=== Phase 6: Vault sync ==="
+
+VAULT_PATH=""
+if [ -f ".claude/identity.json" ]; then
+    VAULT_PATH=$($PYTHON -c "import json; d=json.load(open('.claude/identity.json')); print(d.get('vault_path',''))" 2>/dev/null || echo "")
+fi
+
+if [ -z "$VAULT_PATH" ]; then
+    echo -e "${YELLOW}[INFO]${NC} vault_path not set in identity.json — skipping vault sync."
+elif [ ! -d "$VAULT_PATH/.git" ]; then
+    echo -e "${YELLOW}[WARNING]${NC} Vault path '$VAULT_PATH' is not a git repo — skipping."
+else
+    CLAUDETOOLS_DIR=$(pwd)
+    cd "$VAULT_PATH"
+    echo -e "${GREEN}[OK]${NC} Vault: $VAULT_PATH"
+
+    # Commit any local vault changes
+    if ! git diff-index --quiet HEAD -- 2>/dev/null; then
+        echo -e "${YELLOW}[INFO]${NC} Local vault changes detected — committing..."
+        git add -A
+        git commit -m "sync: auto-sync vault from $MACHINE at $TIMESTAMP"
+        echo -e "${GREEN}[OK]${NC} Vault committed."
+    else
+        echo -e "${GREEN}[OK]${NC} No local vault changes."
+    fi
+
+    VAULT_LOCAL_BEFORE=$(git rev-parse HEAD)
+    git fetch origin --quiet
+
+    VAULT_REMOTE_BRANCH="origin/main"
+    if ! git rev-parse origin/main >/dev/null 2>&1; then
+        VAULT_REMOTE_BRANCH="origin/master"
+    fi
+
+    VAULT_INCOMING=$(git rev-list --count HEAD..$VAULT_REMOTE_BRANCH 2>/dev/null || echo 0)
+    VAULT_OUTGOING=$(git rev-list --count $VAULT_REMOTE_BRANCH..HEAD 2>/dev/null || echo 0)
+
+    if [ "$VAULT_INCOMING" -gt 0 ]; then
+        echo -e "${CYAN}--- Vault: $VAULT_INCOMING incoming commit(s) ---${NC}"
+        git log --oneline --format='  %C(yellow)%h%Creset  %C(cyan)%an%Creset  %s  %C(dim)(%ar)%Creset' HEAD..$VAULT_REMOTE_BRANCH | head -10
+        if git pull origin main --rebase; then
+            echo -e "${GREEN}[OK]${NC} Vault pulled."
+        else
+            echo -e "${RED}[ERROR]${NC} Vault pull failed — resolve conflicts manually in $VAULT_PATH."
+        fi
+    else
+        echo -e "${GREEN}[OK]${NC} Vault: no incoming changes."
+    fi
+
+    VAULT_OUTGOING_AFTER=$(git rev-list --count $VAULT_REMOTE_BRANCH..HEAD 2>/dev/null || echo 0)
+    if [ "$VAULT_OUTGOING_AFTER" -gt 0 ]; then
+        if git push origin main; then
+            echo -e "${GREEN}[OK]${NC} Vault pushed ($VAULT_OUTGOING_AFTER commit(s))."
+        else
+            echo -e "${RED}[ERROR]${NC} Vault push failed."
+        fi
+    else
+        echo -e "${GREEN}[OK]${NC} Vault: nothing to push."
+    fi
+
+    cd "$CLAUDETOOLS_DIR"
+fi
+
+# Phase 7: Summary
 echo ""
 echo "=== Sync Summary ==="