feat!: remove TOON encoding/decoding helper functions

.changeset/remove-toon.md

@@ -0,0 +1,7 @@
+---
+"@openrouter/ai-sdk-provider": patch
+---
+
+Remove TOON encoding/decoding helper functions
+
+BREAKING CHANGE: Removes @toon-format/toon dependency and related exports (encodeToon, decodeToon, ToonEncodeOptions, ToonDecodeOptions, JsonValue). Users who were using these helpers should import directly from @toon-format/toon instead.

package.json

@@ -52,7 +52,6 @@
     "@changesets/changelog-github": "0.5.1",
     "@changesets/cli": "2.29.7",
     "@edge-runtime/vm": "5.0.0",
-    "@toon-format/toon": "2.0.1",
     "@types/node": "24.2.0",
     "ai": "5.0.104",
     "dotenv": "17.2.1",
@@ -63,15 +62,9 @@
     "zod": "3.25.76"
   },
   "peerDependencies": {
-    "@toon-format/toon": "^2.0.0",
     "ai": "^5.0.0",
     "zod": "^3.24.1 || ^v4"
   },
-  "peerDependenciesMeta": {
-    "@toon-format/toon": {
-      "optional": true
-    }
-  },
   "engines": {
     "node": ">=18"
   },

src/chat/index.ts

@@ -15,8 +15,8 @@ import type { ParseResult } from '@ai-sdk/provider-utils';
 import type { FinishReason } from 'ai';
 import type { z } from 'zod/v4';
 import type { ReasoningDetailUnion } from '@/src/schemas/reasoning-details';
-import type { FileAnnotation } from '../schemas/provider-metadata';
 import type { OpenRouterUsageAccounting } from '@/src/types/index';
+import type { FileAnnotation } from '../schemas/provider-metadata';
 import type {
   OpenRouterChatModelId,
   OpenRouterChatSettings,

src/index.ts

@@ -1,4 +1,3 @@
 export * from './facade';
 export * from './provider';
-export * from './toon';
 export * from './types';