diff --git a/bin/ccs b/bin/ccs
index 4580a07..85c9674 100755
--- a/bin/ccs
+++ b/bin/ccs
@@ -270,47 +270,47 @@ print()
         # Ghost binary
         if command -v ghost &>/dev/null; then
             echo -e "  $OK  ghost binary on PATH"
-            ((pass++))
+            pass=$((pass + 1))
         else
             echo -e "  $FAIL  ghost binary not found"
-            ((fail++))
+            fail=$((fail + 1))
         fi
 
         # Ghost MCP registered
         if claude mcp list 2>&1 | grep -q "ghost"; then
             echo -e "  $OK  Ghost MCP registered"
-            ((pass++))
+            pass=$((pass + 1))
         else
             echo -e "  $FAIL  Ghost MCP not registered (run: claude mcp add ghost -s user -- \$(which ghost) mcp)"
-            ((fail++))
+            fail=$((fail + 1))
         fi
 
         # Ollama running
         if curl -s --max-time 2 http://localhost:11434/api/tags &>/dev/null; then
             echo -e "  $OK  Ollama server running"
-            ((pass++))
+            pass=$((pass + 1))
 
             # Embedding model
             if curl -s http://localhost:11434/api/tags 2>/dev/null | grep -q "nomic-embed-text"; then
                 echo -e "  $OK  nomic-embed-text model available"
-                ((pass++))
+                pass=$((pass + 1))
             else
                 echo -e "  $FAIL  nomic-embed-text model missing (run: ollama pull nomic-embed-text)"
-                ((fail++))
+                fail=$((fail + 1))
             fi
         else
             echo -e "  $FAIL  Ollama not running (run: ollama serve)"
             echo -e "  $WARN  skipping model check"
-            ((fail++))
+            fail=$((fail + 1))
         fi
 
         # cc-conversation-search
         if command -v cc-conversation-search &>/dev/null; then
             echo -e "  $OK  cc-conversation-search installed"
-            ((pass++))
+            pass=$((pass + 1))
         else
             echo -e "  $FAIL  cc-conversation-search not found"
-            ((fail++))
+            fail=$((fail + 1))
         fi
 
         # Search index
@@ -320,33 +320,33 @@ print()
             age_hours=$(( age_seconds / 3600 ))
             if [ "$age_hours" -lt 24 ]; then
                 echo -e "  $OK  search index fresh (updated ${age_hours}h ago)"
-                ((pass++))
+                pass=$((pass + 1))
             else
                 echo -e "  $WARN  search index stale (${age_hours}h old - run: ccs ix)"
-                ((pass++))
+                pass=$((pass + 1))
             fi
         else
             echo -e "  $FAIL  search index missing (run: ccs ix)"
-            ((fail++))
+            fail=$((fail + 1))
         fi
 
         # ccs shortcut
         if command -v ccs &>/dev/null; then
             echo -e "  $OK  ccs shortcut on PATH"
-            ((pass++))
+            pass=$((pass + 1))
         else
             echo -e "  $FAIL  ccs not on PATH"
-            ((fail++))
+            fail=$((fail + 1))
         fi
 
         # Commands installed
         cmd_count=0
         for cmd in rename-session standup wrapup team-log team-standup; do
-            [ -f "${HOME}/.claude/commands/${cmd}.md" ] && ((cmd_count++))
+            [ -f "${HOME}/.claude/commands/${cmd}.md" ] && cmd_count=$((cmd_count + 1))
         done
         if [ "$cmd_count" -eq 5 ]; then
             echo -e "  $OK  all slash commands installed ($cmd_count/5)"
-            ((pass++))
+            pass=$((pass + 1))
         else
             echo -e "  $WARN  $cmd_count/5 slash commands installed (run: ccs update)"
         fi
@@ -357,7 +357,7 @@ print()
             if [ -n "$latest" ]; then
                 if [ "$CCS_VERSION" = "$latest" ]; then
                     echo -e "  $OK  ccs v$CCS_VERSION (latest)"
-                    ((pass++))
+                    pass=$((pass + 1))
                 else
                     echo -e "  $WARN  ccs v$CCS_VERSION (v$latest available - run: ccs update)"
                 fi
diff --git a/install.sh b/install.sh
index 2fa405b..7ab9625 100755
--- a/install.sh
+++ b/install.sh
@@ -251,7 +251,7 @@ for cmd_file in "$SCRIPT_DIR"/commands/*.md; do
     [ -f "$cmd_file" ] || continue
     cp "$cmd_file" "$CLAUDE_DIR/commands/"
     ok "Installed /$(basename "${cmd_file%.md}") command"
-    ((cmd_count++))
+    cmd_count=$((cmd_count + 1))
 done
 if [ "$cmd_count" -eq 0 ]; then
     warn "No commands found in repo"
diff --git a/uninstall.sh b/uninstall.sh
index a77a3c4..1ba453b 100755
--- a/uninstall.sh
+++ b/uninstall.sh
@@ -41,8 +41,12 @@ echo ""
 
 # Remove MCP registration (check both scopes)
 if [ "$LOCAL_ONLY" -eq 0 ] && command -v claude &>/dev/null; then
-    claude mcp remove ghost -s user 2>/dev/null && info "Removed Ghost MCP registration (user scope)" || true
-    claude mcp remove ghost -s project 2>/dev/null && info "Removed Ghost MCP registration (project scope)" || true
+    if claude mcp remove ghost -s user 2>/dev/null; then
+        info "Removed Ghost MCP registration (user scope)"
+    fi
+    if claude mcp remove ghost -s project 2>/dev/null; then
+        info "Removed Ghost MCP registration (project scope)"
+    fi
     if ! claude mcp list 2>&1 | grep -q ghost; then
         info "Ghost MCP fully removed"
     else
diff --git a/verify.sh b/verify.sh
index 3c9baff..5a728b1 100755
--- a/verify.sh
+++ b/verify.sh
@@ -27,10 +27,10 @@ check() {
     shift
     if "$@" &>/dev/null; then
         echo -e "  ${GREEN}PASS${NC}  $desc"
-        ((PASS++))
+        PASS=$((PASS + 1))
     else
         echo -e "  ${RED}FAIL${NC}  $desc"
-        ((FAIL++))
+        FAIL=$((FAIL + 1))
     fi
 }
 
@@ -39,10 +39,10 @@ check_warn() {
     shift
     if "$@" &>/dev/null; then
         echo -e "  ${GREEN}PASS${NC}  $desc"
-        ((PASS++))
+        PASS=$((PASS + 1))
     else
         echo -e "  ${YELLOW}WARN${NC}  $desc"
-        ((WARN++))
+        WARN=$((WARN + 1))
     fi
 }