feat: migrate tools to use parametersJsonSchema. (#5330)

packages/core/src/tools/write-file.ts

@@ -18,7 +18,6 @@ import {
   Icon,
 } from './tools.js';
 import { ToolErrorType } from './tool-error.js';
-import { Type } from '@google/genai';
 import { SchemaValidator } from '../utils/schemaValidator.js';
 import { makeRelative, shortenPath } from '../utils/paths.js';
 import { getErrorMessage, isNodeError } from '../utils/errors.js';
@@ -89,21 +88,24 @@ export class WriteFileTool
           file_path: {
             description:
               "The absolute path to the file to write to (e.g., '/home/user/project/file.txt'). Relative paths are not supported.",
-            type: Type.STRING,
+            type: 'string',
           },
           content: {
             description: 'The content to write to the file.',
-            type: Type.STRING,
+            type: 'string',
           },
         },
         required: ['file_path', 'content'],
-        type: Type.OBJECT,
+        type: 'object',
       },
     );
   }
 
   validateToolParams(params: WriteFileToolParams): string | null {
-    const errors = SchemaValidator.validate(this.schema.parameters, params);
+    const errors = SchemaValidator.validate(
+      this.schema.parametersJsonSchema,
+      params,
+    );
     if (errors) {
       return errors;
     }