fix(provider-utils): ensure 'type: object' in JSON schemas for DeepSeek/OpenAI compatibility

.eslintignore

@@ -0,0 +1,7 @@
+**/dist
+**/dist-ssr
+**/node_modules
+**/.next
+**/.turbo
+*.tsbuildinfo
+*.log

packages/ai/package.json

@@ -29,9 +29,9 @@
     "clean": "del-cli dist docs *.tsbuildinfo",
     "prepack": "cp -r ../../content/docs ./docs",
     "postpack": "del-cli docs",
-    "lint": "eslint \"./**/*.ts*\"",
+    "lint": "eslint \"src/**/*.ts*\" \"internal.d.ts\" \"test.d.ts\"",
     "type-check": "tsc --build",
-    "prettier-check": "prettier --check \"./**/*.ts*\"",
+    "prettier-check": "prettier --check \"src/**/*.ts*\" \"internal.d.ts\" \"test.d.ts\"",
     "test": "pnpm test:node && pnpm test:edge",
     "test:update": "pnpm test:node -u",
     "test:watch": "vitest --config vitest.node.config.js",

packages/baseten/package.json

@@ -23,12 +23,12 @@
   "scripts": {
     "build": "pnpm clean && tsup --tsconfig tsconfig.build.json",
     "build:watch": "pnpm clean && tsup --watch",
-    "clean": "rm -rf dist docs *.tsbuildinfo",
+    "clean": "del-cli dist docs *.tsbuildinfo",
     "prepack": "mkdir -p docs && cp ../../content/providers/01-ai-sdk-providers/170-baseten.mdx ./docs/",
     "postpack": "del-cli docs",
-    "lint": "eslint \"./**/*.ts*\"",
+    "lint": "eslint \"src/**/*.ts*\"",
     "type-check": "tsc --build",
-    "prettier-check": "prettier --check \"./**/*.ts*\"",
+    "prettier-check": "prettier --check \"src/**/*.ts*\"",
     "test": "pnpm test:node && pnpm test:edge",
     "test:update": "pnpm test:node -u",
     "test:watch": "vitest --config vitest.node.config.js",

packages/huggingface/package.json

@@ -23,12 +23,12 @@
   "scripts": {
     "build": "pnpm clean && tsup --tsconfig tsconfig.build.json",
     "build:watch": "pnpm clean && tsup --watch",
-    "clean": "rm -rf dist docs *.tsbuildinfo",
+    "clean": "del-cli dist docs *.tsbuildinfo",
     "prepack": "mkdir -p docs && cp ../../content/providers/01-ai-sdk-providers/170-huggingface.mdx ./docs/",
     "postpack": "del-cli docs",
-    "lint": "eslint \"./**/*.ts*\"",
+    "lint": "eslint \"src/**/*.ts*\"",
     "type-check": "tsc --build",
-    "prettier-check": "prettier --check \"./**/*.ts*\"",
+    "prettier-check": "prettier --check \"src/**/*.ts*\"",
     "test": "pnpm test:node && pnpm test:edge",
     "test:update": "pnpm test:node -u",
     "test:watch": "vitest --config vitest.node.config.js",

packages/mcp/package.json

@@ -20,10 +20,10 @@
   "scripts": {
     "build": "pnpm clean && tsup --tsconfig tsconfig.build.json",
     "build:watch": "pnpm clean && tsup --watch",
-    "clean": "rm -rf dist *.tsbuildinfo",
-    "lint": "eslint \"./**/*.ts*\"",
+    "clean": "del-cli dist *.tsbuildinfo",
+    "lint": "eslint \"src/**/*.ts*\"",
     "type-check": "tsc --build",
-    "prettier-check": "prettier --check \"./**/*.ts*\"",
+    "prettier-check": "prettier --check \"src/**/*.ts*\"",
     "test": "pnpm test:node && pnpm test:edge",
     "test:update": "pnpm test:node -u",
     "test:watch": "vitest --config vitest.node.config.js",

packages/provider-utils/package.json

@@ -22,9 +22,9 @@
     "build": "pnpm clean && tsup --tsconfig tsconfig.build.json",
     "build:watch": "pnpm clean && tsup --watch",
     "clean": "del-cli dist *.tsbuildinfo",
-    "lint": "eslint \"./**/*.ts*\"",
+    "lint": "eslint \"src/**/*.ts*\" \"test.d.ts\"",
     "type-check": "tsc --build",
-    "prettier-check": "prettier --check \"./**/*.ts*\"",
+    "prettier-check": "prettier --check \"src/**/*.ts*\" \"test.d.ts\"",
     "test": "pnpm test:node && pnpm test:edge",
     "test:update": "pnpm test:node -u",
     "test:watch": "vitest --config vitest.node.config.js",

packages/provider-utils/src/schema-deepseek-fix.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from 'vitest';
+import { asSchema, jsonSchema } from './schema';
+
+describe('DeepSeek/OpenAI-compatible schema fix', () => {
+  it('should add type: object to default empty schema in asSchema(undefined)', async () => {
+    const schema = asSchema(undefined);
+    expect(await schema.jsonSchema).toStrictEqual({
+      type: 'object',
+      properties: {},
+      additionalProperties: false,
+    });
+  });
+
+  it('should add type: object when properties are present but type is missing in jsonSchema', async () => {
+    const schema = jsonSchema({
+      properties: {
+        test: { type: 'string' },
+      },
+    });
+    expect(await schema.jsonSchema).toStrictEqual({
+      type: 'object',
+      properties: {
+        test: { type: 'string' },
+      },
+    });
+  });
+});

packages/provider-utils/src/schema.ts

@@ -112,7 +112,30 @@ export function jsonSchema<OBJECT = unknown>(
       if (typeof jsonSchema === 'function') {
         jsonSchema = jsonSchema(); // cache the function results
       }
-      return jsonSchema;
+
+      const fixSchema = (schema: JSONSchema7): JSONSchema7 => {
+        // Ensure 'type: object' is present when properties are present (required by some providers):
+        if (
+          typeof schema === 'object' &&
+          schema !== null &&
+          'properties' in schema &&
+          !('type' in schema)
+        ) {
+          return { ...schema, type: 'object' as const };
+        }
+        return schema;
+      };
+
+      if (
+        typeof jsonSchema === 'object' &&
+        jsonSchema !== null &&
+        'then' in jsonSchema &&
+        typeof (jsonSchema as any).then === 'function'
+      ) {
+        return (jsonSchema as PromiseLike<JSONSchema7>).then(fixSchema);
+      }
+
+      return fixSchema(jsonSchema as JSONSchema7);
     },
     validate,
   };
@@ -133,7 +156,11 @@ export function asSchema<OBJECT>(
   schema: FlexibleSchema<OBJECT> | undefined,
 ): Schema<OBJECT> {
   return schema == null
-    ? jsonSchema({ properties: {}, additionalProperties: false })
+    ? jsonSchema({
+        type: 'object',
+        properties: {},
+        additionalProperties: false,
+      })
     : isSchema(schema)
       ? schema
       : '~standard' in schema

packages/provider/package.json

@@ -21,9 +21,9 @@
     "build": "pnpm clean && tsup --tsconfig tsconfig.build.json",
     "build:watch": "pnpm clean && tsup --watch",
     "clean": "del-cli dist *.tsbuildinfo",
-    "lint": "eslint \"./**/*.ts*\"",
+    "lint": "eslint \"src/**/*.ts*\"",
     "type-check": "tsc --build",
-    "prettier-check": "prettier --check \"./**/*.ts*\""
+    "prettier-check": "prettier --check \"src/**/*.ts*\""
   },
   "exports": {
     "./package.json": "./package.json",

packages/test-server/package.json

@@ -19,10 +19,10 @@
   "scripts": {
     "build": "pnpm clean && tsup --tsconfig tsconfig.build.json",
     "build:watch": "pnpm clean && tsup --watch",
-    "clean": "rm -rf dist *.tsbuildinfo",
-    "lint": "eslint \"./**/*.ts*\"",
+    "clean": "del-cli dist docs *.tsbuildinfo",
+    "lint": "eslint \"src/**/*.ts*\"",
     "type-check": "tsc --build",
-    "prettier-check": "prettier --check \"./**/*.ts*\"",
+    "prettier-check": "prettier --check \"src/**/*.ts*\"",
     "test": "pnpm test:node && pnpm test:edge",
     "test:update": "pnpm test:node -u",
     "test:watch": "vitest --config vitest.node.config.js",
@@ -71,4 +71,4 @@
     "test-server",
     "msw"
   ]
-}
+}