fix(cli): correct initial history length handling for chat commands (#15223)

packages/core/src/index.ts

@@ -73,6 +73,7 @@ export * from './utils/generateContentResponseUtilities.js';
 export * from './utils/filesearch/fileSearch.js';
 export * from './utils/errorParsing.js';
 export * from './utils/workspaceContext.js';
+export * from './utils/environmentContext.js';
 export * from './utils/ignorePatterns.js';
 export * from './utils/partUtils.js';
 export * from './utils/promptIdContext.js';

packages/core/src/utils/environmentContext.ts

@@ -8,6 +8,8 @@ import type { Part, Content } from '@google/genai';
 import type { Config } from '../config/config.js';
 import { getFolderStructure } from './getFolderStructure.js';
 
+export const INITIAL_HISTORY_LENGTH = 1;
+
 /**
  * Generates a string describing the current workspace directories and their structures.
  * @param {Config} config - The runtime configuration and services.