feat: standard (json) schema compliance (TanStack#165)

* feat: standard (json) schema compliance

* add changeset

* update lock

* ci: apply automated fixes

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

Author: AlemTuzlak

.changeset/honest-bugs-tell.md

@@ -0,0 +1,15 @@
+---
+'@tanstack/tests-adapters': minor
+'@tanstack/ai-anthropic': minor
+'@tanstack/ai-client': minor
+'@tanstack/ai-ollama': minor
+'@tanstack/ai-svelte': minor
+'@tanstack/ai-react': minor
+'@tanstack/ai-solid': minor
+'@tanstack/ai-vue': minor
+'ts-svelte-chat': minor
+'@tanstack/ai': minor
+'ts-vue-chat': minor
+---
+
+Standard schema / standard json schema support for TanStack AI

examples/ts-react-chat/package.json

@@ -38,7 +38,7 @@
     "remark-gfm": "^4.0.1",
     "tailwindcss": "^4.1.18",
     "vite-tsconfig-paths": "^5.1.4",
-    "zod": "^4.1.13"
+    "zod": "^4.2.0"
   },
   "devDependencies": {
     "@tanstack/devtools-vite": "^0.3.11",

examples/ts-solid-chat/package.json

@@ -35,7 +35,7 @@
     "solid-markdown": "^2.1.0",
     "tailwindcss": "^4.1.18",
     "vite-tsconfig-paths": "^5.1.4",
-    "zod": "^4.1.13"
+    "zod": "^4.2.0"
   },
   "devDependencies": {
     "@solidjs/testing-library": "^0.8.10",

examples/ts-svelte-chat/package.json

@@ -23,7 +23,7 @@
     "lucide-svelte": "^0.468.0",
     "marked": "^15.0.6",
     "marked-highlight": "^2.2.0",
-    "zod": "^4.1.13"
+    "zod": "^4.2.0"
   },
   "devDependencies": {
     "@sveltejs/adapter-auto": "^3.3.1",

examples/ts-vue-chat/package.json

@@ -21,7 +21,7 @@
     "marked": "^15.0.6",
     "vue": "^3.5.25",
     "vue-router": "^4.5.0",
-    "zod": "^4.1.13"
+    "zod": "^4.2.0"
   },
   "devDependencies": {
     "@tailwindcss/vite": "^4.1.18",

packages/typescript/ai-anthropic/src/tools/custom-tool.ts

@@ -1,5 +1,4 @@
-import type { JSONSchema, Tool } from '@tanstack/ai'
-import type { z } from 'zod'
+import type { JSONSchema, SchemaInput, Tool } from '@tanstack/ai'
 import type { CacheControl } from '../text/text-provider-options'
 
 export interface CustomTool {
@@ -53,7 +52,7 @@ export function convertCustomToolToAdapterFormat(tool: Tool): CustomTool {
 export function customTool(
   name: string,
   description: string,
-  inputSchema: z.ZodType,
+  inputSchema: SchemaInput,
   cacheControl?: CacheControl | null,
 ): Tool {
   return {

packages/typescript/ai-client/package.json

@@ -48,6 +48,6 @@
   "devDependencies": {
     "@vitest/coverage-v8": "4.0.14",
     "vite": "^7.2.7",
-    "zod": "^4.1.13"
+    "zod": "^4.2.0"
   }
 }

packages/typescript/ai-ollama/src/adapters/text.ts

@@ -294,17 +294,19 @@ export class OllamaTextAdapter<TModel extends string> extends BaseTextAdapter<
       return undefined
     }
 
-    // Tool schemas are already converted to JSON Schema in the ai layer
+    // Tool schemas are already converted to JSON Schema in the ai layer.
+    // We use a type assertion because our JSONSchema type is more flexible
+    // than ollama's expected schema type (e.g., type can be string | string[]).
     return tools.map((tool) => ({
       type: 'function',
       function: {
         name: tool.name,
         description: tool.description,
-        parameters: tool.inputSchema ?? {
+        parameters: (tool.inputSchema ?? {
           type: 'object',
           properties: {},
           required: [],
-        },
+        }) as OllamaTool['function']['parameters'],
       },
     }))
   }

packages/typescript/ai-react/package.json

@@ -49,8 +49,7 @@
     "@types/react": "^19.2.7",
     "@vitest/coverage-v8": "4.0.14",
     "jsdom": "^27.2.0",
-    "vite": "^7.2.7",
-    "zod": "^4.1.13"
+    "vite": "^7.2.7"
   },
   "peerDependencies": {
     "@tanstack/ai": "workspace:*",

packages/typescript/ai-solid/package.json

@@ -40,8 +40,7 @@
   ],
   "dependencies": {
     "@tanstack/ai": "workspace:*",
-    "@tanstack/ai-client": "workspace:*",
-    "zod": "^4.1.13"
+    "@tanstack/ai-client": "workspace:*"
   },
   "devDependencies": {
     "@solidjs/testing-library": "^0.8.10",