1 files changed, 8 insertions, 6 deletions
diff --git a/packages/core/src/tools/grep.ts b/packages/core/src/tools/grep.ts
index 8e2b84f1..f8ecdc9c 100644
--- a/packages/core/src/tools/grep.ts
+++ b/packages/core/src/tools/grep.ts
@@ -17,7 +17,6 @@ import {
   ToolInvocation,
   ToolResult,
 } from './tools.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';
@@ -550,21 +549,21 @@ export class GrepTool extends BaseDeclarativeTool<GrepToolParams, ToolResult> {
           pattern: {
             description:
               "The regular expression (regex) pattern to search for within file contents (e.g., 'function\\s+myFunction', 'import\\s+\\{.*\\}\\s+from\\s+.*').",
-            type: Type.STRING,
+            type: 'string',
           },
           path: {
             description:
               'Optional: The absolute path to the directory to search within. If omitted, searches the current working directory.',
-            type: Type.STRING,
+            type: 'string',
           },
           include: {
             description:
               "Optional: A glob pattern to filter which files are searched (e.g., '*.js', '*.{ts,tsx}', 'src/**'). If omitted, searches all files (respecting potential global ignores).",
-            type: Type.STRING,
+            type: 'string',
           },
         },
         required: ['pattern'],
-        type: Type.OBJECT,
+        type: 'object',
       },
     );
   }
@@ -616,7 +615,10 @@ export class GrepTool extends BaseDeclarativeTool<GrepToolParams, ToolResult> {
    * @returns An error message string if invalid, null otherwise
    */
   validateToolParams(params: GrepToolParams): string | null {
-    const errors = SchemaValidator.validate(this.schema.parameters, params);
+    const errors = SchemaValidator.validate(
+      this.schema.parametersJsonSchema,
+      params,
+    );
     if (errors) {
       return errors;
     }