refactor(core): Centralize 'write_file' tool name (#10694)

packages/cli/src/config/config.ts

@@ -31,7 +31,7 @@ import {
   FileDiscoveryService,
   ShellTool,
   EditTool,
-  WriteFileTool,
+  WRITE_FILE_TOOL_NAME,
   SHELL_TOOL_NAMES,
   resolveTelemetrySettings,
   FatalConfigError,
@@ -605,7 +605,11 @@ export async function loadCliConfig(
   // In non-interactive mode, exclude tools that require a prompt.
   const extraExcludes: string[] = [];
   if (!interactive && !argv.experimentalAcp) {
-    const defaultExcludes = [ShellTool.Name, EditTool.Name, WriteFileTool.Name];
+    const defaultExcludes = [
+      ShellTool.Name,
+      EditTool.Name,
+      WRITE_FILE_TOOL_NAME,
+    ];
     const autoEditExcludes = [ShellTool.Name];
 
     const toolExclusionFilter = createToolExclusionFilter(

packages/cli/src/config/policy.ts

@@ -20,7 +20,7 @@ import {
   EditTool,
   MemoryTool,
   ShellTool,
-  WriteFileTool,
+  WRITE_FILE_TOOL_NAME,
   WebFetchTool,
   WebSearchTool,
 } from '@google/gemini-cli-core';
@@ -48,7 +48,7 @@ const WRITE_TOOLS = new Set([
   EditTool.Name,
   MemoryTool.Name,
   ShellTool.Name,
-  WriteFileTool.Name,
+  WRITE_FILE_TOOL_NAME,
   WebFetchTool.Name,
 ]);
 

packages/cli/src/ui/hooks/useGeminiStream.ts

@@ -33,6 +33,7 @@ import {
   parseAndFormatApiError,
   ToolConfirmationOutcome,
   promptIdContext,
+  WRITE_FILE_TOOL_NAME,
 } from '@google/gemini-cli-core';
 import { type Part, type PartListUnion, FinishReason } from '@google/genai';
 import type {
@@ -69,7 +70,7 @@ enum StreamProcessingStatus {
   Error,
 }
 
-const EDIT_TOOL_NAMES = new Set(['replace', 'write_file']);
+const EDIT_TOOL_NAMES = new Set(['replace', WRITE_FILE_TOOL_NAME]);
 
 function showCitations(settings: LoadedSettings): boolean {
   const enabled = settings?.merged?.ui?.showCitations;