Function setPluginEnabledOp

src/services/plugins/pluginOperations.ts:575–750

(
  plugin: string,
  enabled: boolean,
  scope?: InstallableScope,
)

 * @returns Result indicating success/failure
 */
export async function setPluginEnabledOp(
  plugin: string,
  enabled: boolean,
  scope?: InstallableScope,
): Promise<PluginOperationResult> {
  const operation = enabled ? 'enable' : 'disable'

  // Built-in plugins: always use user-scope settings, bypass the normal
  // scope-resolution + installed_plugins lookup (they're not installed).
  if (isBuiltinPluginId(plugin)) {
    const { error } = updateSettingsForSource('userSettings', {
      enabledPlugins: {
        ...getSettingsForSource('userSettings')?.enabledPlugins,
        [plugin]: enabled,
      },
    })
    if (error) {
      return {
        success: false,
        message: `Failed to ${operation} built-in plugin: ${error.message}`,
      }
    }
    clearAllCaches()
    const { name: pluginName } = parsePluginIdentifier(plugin)
    return {
      success: true,
      message: `Successfully ${operation}d built-in plugin: ${pluginName}`,
      pluginId: plugin,
      pluginName,
      scope: 'user',
    }
  }

  if (scope) {
    assertInstallableScope(scope)
  }

  // ── Resolve pluginId and scope from settings ──
  // Search across editable scopes for any mention (enabled or disabled) of
  // this plugin. Does NOT pre-gate on installed_plugins.json.
  let pluginId: string
  let resolvedScope: InstallableScope

  const found = findPluginInSettings(plugin)

  if (scope) {
    // Explicit scope: use it. Resolve pluginId from settings if possible,
    // otherwise require a full plugin@marketplace identifier.
    resolvedScope = scope
    if (found) {
      pluginId = found.pluginId
    } else if (plugin.includes('@')) {
      pluginId = plugin
    } else {
      return {
        success: false,
        message: `Plugin "${plugin}" not found in settings. Use plugin@marketplace format.`,
      }