test(uninstall): add hook cleanup tests

- add Section 7: SETTINGS.JSON HOOK CLEANUP tests

- test CCS hook removal from settings.json

- test user-defined hooks preserved

- test mixed CCS and user hooks handling

- test missing settings.json handling

- update special-commands.test.js expectations

tests/native/unix/uninstall.sh

@@ -281,6 +281,84 @@ test_case "Edge case: Missing parent directories" "Handles missing .claude direc
     [[ \$exit_code -eq 0 ]]
 "
 
+# ============================================================================
+# TEST SECTION 7: SETTINGS.JSON HOOK CLEANUP
+# ============================================================================
+
+echo ""
+echo "========================================"
+echo "SECTION 7: SETTINGS.JSON HOOK CLEANUP"
+echo "========================================"
+
+test_case "Hook cleanup: Removes CCS WebSearch hook from settings.json" "Hook removed" bash -c "
+    # Setup: Create settings.json with CCS hook
+    mkdir -p '$TEST_CLAUDE_DIR'
+    cat > '$TEST_CLAUDE_DIR/settings.json' << 'EOFINNER'
+{
+  \"hooks\": {
+    \"PreToolUse\": [
+      { \"matcher\": \"WebSearch\", \"hooks\": [{ \"command\": \"node ~/.ccs/hooks/websearch-transformer.cjs\" }] }
+    ]
+  }
+}
+EOFINNER
+    # Install then uninstall
+    HOME='$TEST_HOME' '$CCS_PATH' --install > /dev/null 2>&1
+    HOME='$TEST_HOME' '$CCS_PATH' --uninstall > /dev/null 2>&1
+    # Check hook removed
+    ! grep -q 'websearch-transformer' '$TEST_CLAUDE_DIR/settings.json'
+"
+
+test_case "Hook cleanup: Preserves user-defined WebSearch hooks" "User hooks kept" bash -c "
+    # Setup: Create settings.json with user hook
+    mkdir -p '$TEST_CLAUDE_DIR'
+    cat > '$TEST_CLAUDE_DIR/settings.json' << 'EOFINNER'
+{
+  \"hooks\": {
+    \"PreToolUse\": [
+      { \"matcher\": \"WebSearch\", \"hooks\": [{ \"command\": \"my-custom-hook.sh\" }] }
+    ]
+  }
+}
+EOFINNER
+    # Uninstall
+    HOME='$TEST_HOME' '$CCS_PATH' --uninstall > /dev/null 2>&1
+    # Check user hook preserved
+    grep -q 'my-custom-hook' '$TEST_CLAUDE_DIR/settings.json'
+"
+
+test_case "Hook cleanup: Handles mixed CCS and user hooks" "Only CCS hook removed" bash -c "
+    # Setup: Create settings.json with both CCS and user hooks
+    mkdir -p '$TEST_CLAUDE_DIR'
+    cat > '$TEST_CLAUDE_DIR/settings.json' << 'EOFINNER'
+{
+  \"hooks\": {
+    \"PreToolUse\": [
+      { \"matcher\": \"WebSearch\", \"hooks\": [{ \"command\": \"node ~/.ccs/hooks/websearch-transformer.cjs\" }] },
+      { \"matcher\": \"WebSearch\", \"hooks\": [{ \"command\": \"my-custom-hook.sh\" }] },
+      { \"matcher\": \"Bash\", \"hooks\": [{ \"command\": \"bash-hook.sh\" }] }
+    ]
+  }
+}
+EOFINNER
+    # Uninstall
+    HOME='$TEST_HOME' '$CCS_PATH' --uninstall > /dev/null 2>&1
+    # Check CCS hook removed
+    ! grep -q 'websearch-transformer' '$TEST_CLAUDE_DIR/settings.json' &&
+    # Check user WebSearch hook preserved
+    grep -q 'my-custom-hook' '$TEST_CLAUDE_DIR/settings.json' &&
+    # Check other hooks preserved
+    grep -q 'bash-hook' '$TEST_CLAUDE_DIR/settings.json'
+"
+
+test_case "Hook cleanup: Handles missing settings.json" "No error when settings.json missing" bash -c "
+    # Ensure settings.json doesn't exist
+    rm -f '$TEST_CLAUDE_DIR/settings.json'
+    HOME='$TEST_HOME' '$CCS_PATH' --uninstall > /dev/null 2>&1
+    exit_code=\$?
+    [[ \$exit_code -eq 0 ]]
+"
+
 # ============================================================================
 # SUMMARY
 # ============================================================================

tests/native/windows/uninstall.ps1

@@ -425,6 +425,114 @@ Test-Case "Edge case: Missing parent directories" "Handles missing .claude direc
     }
 }
 
+# ============================================================================
+# TEST SECTION 7: SETTINGS.JSON HOOK CLEANUP
+# ============================================================================
+
+Write-Host ""
+Write-ColorOutput "========================================" "Yellow"
+Write-ColorOutput "SECTION 7: SETTINGS.JSON HOOK CLEANUP" "Yellow"
+Write-ColorOutput "========================================" "Yellow"
+
+Test-Case "Hook cleanup: Removes CCS WebSearch hook from settings.json" "Hook removed" {
+    # Setup: Create settings.json with CCS hook
+    New-Item -ItemType Directory -Path $TestClaudeDir -Force | Out-Null
+    $settingsPath = Join-Path $TestClaudeDir "settings.json"
+    $settingsContent = @'
+{
+  "hooks": {
+    "PreToolUse": [
+      { "matcher": "WebSearch", "hooks": [{ "command": "node ~/.ccs/hooks/websearch-transformer.cjs" }] }
+    ]
+  }
+}
+'@
+    Set-Content -Path $settingsPath -Value $settingsContent
+
+    # Install then uninstall
+    $env:HOME = $TestHome
+    try {
+        & $CcsPath --install | Out-Null
+        & $CcsPath --uninstall | Out-Null
+    } catch { }
+
+    # Check hook removed
+    $content = Get-Content -Path $settingsPath -Raw
+    -not ($content -match "websearch-transformer")
+}
+
+Test-Case "Hook cleanup: Preserves user-defined WebSearch hooks" "User hooks kept" {
+    # Setup: Create settings.json with user hook
+    New-Item -ItemType Directory -Path $TestClaudeDir -Force | Out-Null
+    $settingsPath = Join-Path $TestClaudeDir "settings.json"
+    $settingsContent = @'
+{
+  "hooks": {
+    "PreToolUse": [
+      { "matcher": "WebSearch", "hooks": [{ "command": "my-custom-hook.sh" }] }
+    ]
+  }
+}
+'@
+    Set-Content -Path $settingsPath -Value $settingsContent
+
+    # Uninstall
+    $env:HOME = $TestHome
+    try {
+        & $CcsPath --uninstall | Out-Null
+    } catch { }
+
+    # Check user hook preserved
+    $content = Get-Content -Path $settingsPath -Raw
+    $content -match "my-custom-hook"
+}
+
+Test-Case "Hook cleanup: Handles mixed CCS and user hooks" "Only CCS hook removed" {
+    # Setup: Create settings.json with both CCS and user hooks
+    New-Item -ItemType Directory -Path $TestClaudeDir -Force | Out-Null
+    $settingsPath = Join-Path $TestClaudeDir "settings.json"
+    $settingsContent = @'
+{
+  "hooks": {
+    "PreToolUse": [
+      { "matcher": "WebSearch", "hooks": [{ "command": "node ~/.ccs/hooks/websearch-transformer.cjs" }] },
+      { "matcher": "WebSearch", "hooks": [{ "command": "my-custom-hook.sh" }] },
+      { "matcher": "Bash", "hooks": [{ "command": "bash-hook.sh" }] }
+    ]
+  }
+}
+'@
+    Set-Content -Path $settingsPath -Value $settingsContent
+
+    # Uninstall
+    $env:HOME = $TestHome
+    try {
+        & $CcsPath --uninstall | Out-Null
+    } catch { }
+
+    # Check CCS hook removed, user hooks preserved
+    $content = Get-Content -Path $settingsPath -Raw
+    (-not ($content -match "websearch-transformer")) -and
+    ($content -match "my-custom-hook") -and
+    ($content -match "bash-hook")
+}
+
+Test-Case "Hook cleanup: Handles missing settings.json" "No error when settings.json missing" {
+    # Ensure settings.json doesn't exist
+    $settingsPath = Join-Path $TestClaudeDir "settings.json"
+    if (Test-Path $settingsPath) {
+        Remove-Item $settingsPath -Force
+    }
+
+    $env:HOME = $TestHome
+    try {
+        & $CcsPath --uninstall | Out-Null
+        return $true
+    } catch {
+        return $false
+    }
+}
+
 # ============================================================================
 # SUMMARY
 # ============================================================================

tests/npm/special-commands.test.js

@@ -39,9 +39,8 @@ describe('integration: special commands', () => {
 
   it('handles --uninstall command', () => {
     const output = execSync(`node ${ccsPath} --uninstall`, { encoding: 'utf8' });
-    assert(output.includes('Feature not available'));
+    assert(output.includes('Uninstalling CCS'));
-    assert(output.includes('under development'));
+    assert(output.includes('[OK] Uninstall complete!') || output.includes('Nothing to uninstall'));
-    assert(output.includes('.claude/ integration testing'));
   });
 
   describe('ccs update command flags', () => {