refactor(core): modularize tool definitions by model family

packages/core/src/tools/definitions/base-declarations.ts

@@ -0,0 +1,34 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * Identity registry for all core tools.
+ * Sits at the bottom of the dependency tree to prevent circular imports.
+ */
+
+// ============================================================================
+// TOOL NAMES
+// ============================================================================
+
+export const GLOB_TOOL_NAME = 'glob';
+export const GREP_TOOL_NAME = 'grep_search';
+export const LS_TOOL_NAME = 'list_directory';
+export const READ_FILE_TOOL_NAME = 'read_file';
+export const SHELL_TOOL_NAME = 'run_shell_command';
+export const WRITE_FILE_TOOL_NAME = 'write_file';
+export const EDIT_TOOL_NAME = 'replace';
+export const WEB_SEARCH_TOOL_NAME = 'google_web_search';
+
+export const WRITE_TODOS_TOOL_NAME = 'write_todos';
+export const WEB_FETCH_TOOL_NAME = 'web_fetch';
+export const READ_MANY_FILES_TOOL_NAME = 'read_many_files';
+
+export const MEMORY_TOOL_NAME = 'save_memory';
+export const GET_INTERNAL_DOCS_TOOL_NAME = 'get_internal_docs';
+export const ACTIVATE_SKILL_TOOL_NAME = 'activate_skill';
+export const ASK_USER_TOOL_NAME = 'ask_user';
+export const EXIT_PLAN_MODE_TOOL_NAME = 'exit_plan_mode';
+export const ENTER_PLAN_MODE_TOOL_NAME = 'enter_plan_mode';