downgrade zod to match MCP typescript-sdk version

Author: NiloCK

packages/common/package.json

@@ -33,7 +33,8 @@
   },
   "dependencies": {
     "moment": "^2.30.1",
-    "zod": "^4.0.0"
+    "zod": "^3.23.8",
+    "zod-to-json-schema": "^3.23.5"
   },
   "stableVersion": "0.1.14"
 }

packages/common/src/schemas/dataShapeToZod.ts

@@ -1,4 +1,5 @@
 import { z, ZodRawShape } from 'zod';
+import { zodToJsonSchema } from 'zod-to-json-schema';
 import { DataShape, FieldDefinition, FieldType, Status } from '../index.js';
 
 /**
@@ -110,10 +111,10 @@ export function toZod(dataShape: DataShape): z.ZodObject<ZodRawShape> {
 }
 
 /**
- * Converts a DataShape to JSON Schema string using Zod v4 native conversion
+ * Converts a DataShape to JSON Schema string using zod-to-json-schema
  */
 export function toZodJSON(dataShape: DataShape): string {
   const zodSchema = toZod(dataShape);
-  const jsonSchema = z.toJSONSchema(zodSchema);
+  const jsonSchema = zodToJsonSchema(zodSchema);
   return JSON.stringify(jsonSchema, null, 2);
 }

packages/mcp/package.json

@@ -25,7 +25,7 @@
     "@vue-skuilder/common": "workspace:*",
     "@vue-skuilder/courseware": "workspace:*",
     "@vue-skuilder/db": "workspace:*",
-    "zod": "^4.0.0"
+    "zod": "^3.23.8"
   },
   "devDependencies": {
     "@modelcontextprotocol/inspector": "^0.16.1",

yarn.lock

@@ -6626,7 +6626,8 @@ __metadata:
   dependencies:
     moment: "npm:^2.30.1"
     typescript: "npm:~5.7.2"
-    zod: "npm:^4.0.0"
+    zod: "npm:^3.23.8"
+    zod-to-json-schema: "npm:^3.23.5"
   languageName: unknown
   linkType: soft
 
@@ -6877,7 +6878,7 @@ __metadata:
     "@vue-skuilder/db": "workspace:*"
     tsup: "npm:^8.0.0"
     typescript: "npm:~5.7.2"
-    zod: "npm:^4.0.0"
+    zod: "npm:^3.23.8"
   languageName: unknown
   linkType: soft
 
@@ -21215,7 +21216,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"zod-to-json-schema@npm:^3.24.1":
+"zod-to-json-schema@npm:^3.23.5, zod-to-json-schema@npm:^3.24.1":
   version: 3.24.6
   resolution: "zod-to-json-schema@npm:3.24.6"
   peerDependencies: