feat(cli): allow safe tools to execute concurrently while agent is busy (#21988)

packages/cli/src/ui/commands/aboutCommand.ts

@@ -23,6 +23,7 @@ export const aboutCommand: SlashCommand = {
   description: 'Show version info',
   kind: CommandKind.BUILT_IN,
   autoExecute: true,
+  isSafeConcurrent: true,
   action: async (context) => {
     const osVersion = process.platform;
     let sandboxEnv = 'no sandbox';

packages/cli/src/ui/commands/settingsCommand.ts

@@ -15,6 +15,7 @@ export const settingsCommand: SlashCommand = {
   description: 'View and edit Gemini CLI settings',
   kind: CommandKind.BUILT_IN,
   autoExecute: true,
+  isSafeConcurrent: true,
   action: (_context, _args): OpenDialogActionReturn => ({
     type: 'dialog',
     dialog: 'settings',

packages/cli/src/ui/commands/statsCommand.ts

@@ -84,6 +84,7 @@ export const statsCommand: SlashCommand = {
   description: 'Check session stats. Usage: /stats [session|model|tools]',
   kind: CommandKind.BUILT_IN,
   autoExecute: false,
+  isSafeConcurrent: true,
   action: async (context: CommandContext) => {
     await defaultSessionView(context);
   },
@@ -93,6 +94,7 @@ export const statsCommand: SlashCommand = {
       description: 'Show session-specific usage statistics',
       kind: CommandKind.BUILT_IN,
       autoExecute: true,
+      isSafeConcurrent: true,
       action: async (context: CommandContext) => {
         await defaultSessionView(context);
       },
@@ -102,6 +104,7 @@ export const statsCommand: SlashCommand = {
       description: 'Show model-specific usage statistics',
       kind: CommandKind.BUILT_IN,
       autoExecute: true,
+      isSafeConcurrent: true,
       action: (context: CommandContext) => {
         const { selectedAuthType, userEmail, tier } = getUserIdentity(context);
         const currentModel = context.services.config?.getModel();
@@ -125,6 +128,7 @@ export const statsCommand: SlashCommand = {
       description: 'Show tool-specific usage statistics',
       kind: CommandKind.BUILT_IN,
       autoExecute: true,
+      isSafeConcurrent: true,
       action: (context: CommandContext) => {
         context.ui.addItem({
           type: MessageType.TOOL_STATS,

packages/cli/src/ui/commands/types.ts

@@ -207,6 +207,11 @@ export interface SlashCommand {
    */
   autoExecute?: boolean;
 
+  /**
+   * Whether this command can be safely executed while the agent is busy (e.g. streaming a response).
+   */
+  isSafeConcurrent?: boolean;
+
   // Optional metadata for extension commands
   extensionName?: string;
   extensionId?: string;

packages/cli/src/ui/commands/vimCommand.ts

@@ -11,6 +11,7 @@ export const vimCommand: SlashCommand = {
   description: 'Toggle vim mode on/off',
   kind: CommandKind.BUILT_IN,
   autoExecute: true,
+  isSafeConcurrent: true,
   action: async (context, _args) => {
     const newVimState = await context.ui.toggleVimEnabled();