diff --git a/packages/core/src/config/config.ts b/packages/core/src/config/config.ts
index a916333408..530d4caf0f 100644
--- a/packages/core/src/config/config.ts
+++ b/packages/core/src/config/config.ts
@@ -129,19 +129,16 @@ export interface ExtensionInstallMetadata {
   autoUpdate?: boolean;
 }
 
-export interface FileFilteringOptions {
-  respectGitIgnore: boolean;
-  respectGeminiIgnore: boolean;
-}
-// For memory files
-export const DEFAULT_MEMORY_FILE_FILTERING_OPTIONS: FileFilteringOptions = {
-  respectGitIgnore: false,
-  respectGeminiIgnore: true,
-};
-// For all other files
-export const DEFAULT_FILE_FILTERING_OPTIONS: FileFilteringOptions = {
-  respectGitIgnore: true,
-  respectGeminiIgnore: true,
+import type { FileFilteringOptions } from './constants.js';
+import {
+  DEFAULT_MEMORY_FILE_FILTERING_OPTIONS,
+  DEFAULT_FILE_FILTERING_OPTIONS,
+} from './constants.js';
+
+export type { FileFilteringOptions };
+export {
+  DEFAULT_MEMORY_FILE_FILTERING_OPTIONS,
+  DEFAULT_FILE_FILTERING_OPTIONS,
 };
 
 export const DEFAULT_TRUNCATE_TOOL_OUTPUT_THRESHOLD = 4_000_000;
diff --git a/packages/core/src/config/constants.ts b/packages/core/src/config/constants.ts
new file mode 100644
index 0000000000..75ef3e4979
--- /dev/null
+++ b/packages/core/src/config/constants.ts
@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+export interface FileFilteringOptions {
+  respectGitIgnore: boolean;
+  respectGeminiIgnore: boolean;
+}
+
+// For memory files
+export const DEFAULT_MEMORY_FILE_FILTERING_OPTIONS: FileFilteringOptions = {
+  respectGitIgnore: false,
+  respectGeminiIgnore: true,
+};
+
+// For all other files
+export const DEFAULT_FILE_FILTERING_OPTIONS: FileFilteringOptions = {
+  respectGitIgnore: true,
+  respectGeminiIgnore: true,
+};
diff --git a/packages/core/src/tools/glob.ts b/packages/core/src/tools/glob.ts
index 895b6c9e8a..8d97f3e4c1 100644
--- a/packages/core/src/tools/glob.ts
+++ b/packages/core/src/tools/glob.ts
@@ -10,10 +10,8 @@ import { glob, escape } from 'glob';
 import type { ToolInvocation, ToolResult } from './tools.js';
 import { BaseDeclarativeTool, BaseToolInvocation, Kind } from './tools.js';
 import { shortenPath, makeRelative } from '../utils/paths.js';
-import {
-  type Config,
-  DEFAULT_FILE_FILTERING_OPTIONS,
-} from '../config/config.js';
+import { type Config } from '../config/config.js';
+import { DEFAULT_FILE_FILTERING_OPTIONS } from '../config/constants.js';
 import { ToolErrorType } from './tool-error.js';
 
 // Subset of 'Path' interface provided by 'glob' that we can implement for testing
diff --git a/packages/core/src/tools/ls.ts b/packages/core/src/tools/ls.ts
index 09c26c796e..2f60f6ea19 100644
--- a/packages/core/src/tools/ls.ts
+++ b/packages/core/src/tools/ls.ts
@@ -10,7 +10,7 @@ import type { ToolInvocation, ToolResult } from './tools.js';
 import { BaseDeclarativeTool, BaseToolInvocation, Kind } from './tools.js';
 import { makeRelative, shortenPath } from '../utils/paths.js';
 import type { Config } from '../config/config.js';
-import { DEFAULT_FILE_FILTERING_OPTIONS } from '../config/config.js';
+import { DEFAULT_FILE_FILTERING_OPTIONS } from '../config/constants.js';
 import { ToolErrorType } from './tool-error.js';
 
 /**
diff --git a/packages/core/src/utils/bfsFileSearch.ts b/packages/core/src/utils/bfsFileSearch.ts
index 2d66f719b7..cdec2333e9 100644
--- a/packages/core/src/utils/bfsFileSearch.ts
+++ b/packages/core/src/utils/bfsFileSearch.ts
@@ -7,7 +7,7 @@
 import * as fs from 'node:fs/promises';
 import * as path from 'node:path';
 import type { FileDiscoveryService } from '../services/fileDiscoveryService.js';
-import type { FileFilteringOptions } from '../config/config.js';
+import type { FileFilteringOptions } from '../config/constants.js';
 // Simple console logger for now.
 // TODO: Integrate with a more robust server-side logger.
 const logger = {
diff --git a/packages/core/src/utils/getFolderStructure.ts b/packages/core/src/utils/getFolderStructure.ts
index fd80e43870..734b9acbb2 100644
--- a/packages/core/src/utils/getFolderStructure.ts
+++ b/packages/core/src/utils/getFolderStructure.ts
@@ -9,8 +9,8 @@ import type { Dirent } from 'node:fs';
 import * as path from 'node:path';
 import { getErrorMessage, isNodeError } from './errors.js';
 import type { FileDiscoveryService } from '../services/fileDiscoveryService.js';
-import type { FileFilteringOptions } from '../config/config.js';
-import { DEFAULT_FILE_FILTERING_OPTIONS } from '../config/config.js';
+import type { FileFilteringOptions } from '../config/constants.js';
+import { DEFAULT_FILE_FILTERING_OPTIONS } from '../config/constants.js';
 
 const MAX_ITEMS = 200;
 const TRUNCATION_INDICATOR = '...';
diff --git a/packages/core/src/utils/memoryDiscovery.ts b/packages/core/src/utils/memoryDiscovery.ts
index dc7ce0c22a..a2d9ed1e3e 100644
--- a/packages/core/src/utils/memoryDiscovery.ts
+++ b/packages/core/src/utils/memoryDiscovery.ts
@@ -12,8 +12,8 @@ import { bfsFileSearch } from './bfsFileSearch.js';
 import { getAllGeminiMdFilenames } from '../tools/memoryTool.js';
 import type { FileDiscoveryService } from '../services/fileDiscoveryService.js';
 import { processImports } from './memoryImportProcessor.js';
-import type { FileFilteringOptions } from '../config/config.js';
-import { DEFAULT_MEMORY_FILE_FILTERING_OPTIONS } from '../config/config.js';
+import type { FileFilteringOptions } from '../config/constants.js';
+import { DEFAULT_MEMORY_FILE_FILTERING_OPTIONS } from '../config/constants.js';
 import { GEMINI_DIR } from './paths.js';
 
 // Simple console logger, similar to the one previously in CLI's config.ts