refactor(agentic-kit): source protocol kernel from @agentic-kit/protocol

Drop the local kernel copies (types, event-stream, messages) and import
them from @agentic-kit/protocol, re-exporting the package so the public
surface is unchanged. agentic-kit still depends on all three providers,
auto-registers them on module load, and owns the createXKit helpers —
import 'agentic-kit' behaves exactly as before.

Author: yyyyaaa

packages/agentic-kit/package.json

@@ -39,7 +39,8 @@
   "dependencies": {
     "@agentic-kit/anthropic": "workspace:*",
     "@agentic-kit/ollama": "workspace:*",
-    "@agentic-kit/openai": "workspace:*"
+    "@agentic-kit/openai": "workspace:*",
+    "@agentic-kit/protocol": "workspace:*"
   },
   "keywords": []
 }

packages/agentic-kit/src/event-stream.ts

@@ -5,9 +5,25 @@ import {
   OpenAIAdapter,
   type OpenAIOptions,
 } from '@agentic-kit/openai';
+import type {
+  AssistantMessage,
+  AssistantMessageEventStream,
+  Context,
+  LegacyChatMessage,
+  LegacyGenerateInput,
+  LegacyStreamingOptions,
+  ModelDescriptor,
+  ProviderAdapter,
+  StreamOptions,
+} from '@agentic-kit/protocol';
+import {
+  createAssistantMessageEventStream,
+  createEmptyUsage,
+  EventStream,
+  getMessageText,
+  normalizeContext,
+} from '@agentic-kit/protocol';
 
-import { createAssistantMessageEventStream, EventStream } from './event-stream.js';
-import { createEmptyUsage, getMessageText, normalizeContext } from './messages.js';
 import {
   clearModels,
   getModel,
@@ -24,22 +40,9 @@ import {
   unregisterProviders,
 } from './provider-registry.js';
 import { transformMessages } from './transform-messages.js';
-import type {
-  AssistantMessage,
-  AssistantMessageEventStream,
-  Context,
-  LegacyChatMessage,
-  LegacyGenerateInput,
-  LegacyStreamingOptions,
-  ModelDescriptor,
-  ProviderAdapter,
-  StreamOptions,
-} from './types.js';
 
-export * from './event-stream.js';
-export * from './messages.js';
 export * from './transform-messages.js';
-export * from './types.js';
+export * from '@agentic-kit/protocol';
 
 export { createAssistantMessageEventStream, EventStream, OllamaClient };
 export { AnthropicAdapter, OllamaAdapter, OpenAIAdapter };

packages/agentic-kit/src/index.ts

@@ -1,4 +1,4 @@
-import type { ModelDescriptor } from './types.js';
+import type { ModelDescriptor } from '@agentic-kit/protocol';
 
 const modelsByProvider = new Map<string, Map<string, ModelDescriptor>>();
 

packages/agentic-kit/src/messages.ts

@@ -1,4 +1,4 @@
-import type { ProviderAdapter } from './types.js';
+import type { ProviderAdapter } from '@agentic-kit/protocol';
 
 type RegisteredProvider = {
   adapter: ProviderAdapter;

packages/agentic-kit/src/model-registry.ts

@@ -5,7 +5,7 @@ import type {
   ThinkingContent,
   ToolCallContent,
   ToolResultMessage,
-} from './types.js';
+} from '@agentic-kit/protocol';
 
 export function transformMessages(messages: Message[], model: ModelDescriptor): Message[] {
   const toolCallIdMap = new Map<string, string>();