chore: remove default from limit arg in find target

Author: himanshusinghs

src/tools/mongodb/read/export.ts

@@ -4,7 +4,7 @@ import { AggregationCursor, FindCursor } from "mongodb";
 import { CallToolResult } from "@modelcontextprotocol/sdk/types.js";
 import { OperationType, ToolArgs } from "../../tool.js";
 import { DbOperationArgs, MongoDBToolBase } from "../mongodbTool.js";
-import { FindArgs } from "./find.js";
+import { FindArgs, limitArg } from "./find.js";
 import { jsonExportFormat } from "../../../common/exportsManager.js";
 import { AggregateArgs } from "./aggregate.js";
 
@@ -19,7 +19,10 @@ export class ExportTool extends MongoDBToolBase {
                 z.discriminatedUnion("name", [
                     z.object({
                         name: z.literal("find"),
-                        arguments: z.object(FindArgs),
+                        arguments: z.object({
+                            ...FindArgs,
+                            limit: limitArg,
+                        }),
                     }),
                     z.object({
                         name: z.literal("aggregate"),

src/tools/mongodb/read/find.ts

@@ -5,6 +5,8 @@ import { ToolArgs, OperationType } from "../../tool.js";
 import { SortDirection } from "mongodb";
 import { checkIndexUsage } from "../../../helpers/indexCheck.js";
 
+export const limitArg = z.number().optional().describe("The maximum number of documents to return");
+
 export const FindArgs = {
     filter: z
         .object({})
@@ -16,7 +18,7 @@ export const FindArgs = {
         .passthrough()
         .optional()
         .describe("The projection, matching the syntax of the projection argument of db.collection.find()"),
-    limit: z.number().optional().default(10).describe("The maximum number of documents to return"),
+    limit: limitArg.default(10),
     sort: z
         .object({})
         .catchall(z.custom<SortDirection>())