refactor(agent-instructions): remove unused source type re-export

packages/context/agent-instructions/README.i18n.yaml

@@ -30,8 +30,8 @@
   en: 724df7ff6d1d9fea
   zh: 91fb1013eb9178ec
 /deepseek-ai-dsh-agent-instructions/understand-the-implementation/design-concept:
-  en: 566f3518b2d1d100
-  zh: c7d0a22b19e7697a
+  en: 4708b51bf8fe86f7
+  zh: 869fc4b1f78383ee
 /deepseek-ai-dsh-agent-instructions/understand-the-implementation/source-map:
   en: cb4c1f929ef5a835
   zh: 3f0fcb7f568a0a5c

packages/context/agent-instructions/README.md

@@ -85,7 +85,7 @@ This section explains the design decisions behind the plugin; the observable beh
 
 ### Design concept
 
-The plugin is built on one principle: workspace instructions are durable conversation content, owned per agent and per session. Baseline and refresh messages are ordinary sourced `user/message` events, so they replay, compact, and resume exactly like other history, and model-visible state is always reconstructable from the session log. The plugin owns the complete `<system-reminder>` framing and every injected message reaches the model verbatim. The package exports `AgentInstructionSource` for typed consumers of these message sources.
+The plugin is built on one principle: workspace instructions are durable conversation content, owned per agent and per session. Baseline and refresh messages are ordinary sourced `user/message` events, so they replay, compact, and resume exactly like other history, and model-visible state is always reconstructable from the session log. The plugin owns the complete `<system-reminder>` framing and every injected message reaches the model verbatim.
 
 ### Source map
 

packages/context/agent-instructions/README.zh.md

@@ -85,7 +85,7 @@ export interface Config {
 
 ### 设计理念
 
-该插件建立在一个原则上：工作区指令是持久的对话内容，按 agent 与会话分别归属。基线消息与刷新消息都是普通的带来源 `user/message` 事件，因此与其他历史一样可回放、可压缩（compaction）、可恢复，模型可见状态总能从会话日志重建。插件拥有完整的 `<system-reminder>` 框架，每条注入消息都原样到达模型。 本包导出 `AgentInstructionSource`，供这些消息来源的消费者进行类型检查。
+该插件建立在一个原则上：工作区指令是持久的对话内容，按 agent 与会话分别归属。基线消息与刷新消息都是普通的带来源 `user/message` 事件，因此与其他历史一样可回放、可压缩（compaction）、可恢复，模型可见状态总能从会话日志重建。插件拥有完整的 `<system-reminder>` 框架，每条注入消息都原样到达模型。
 
 ### 源码地图
 

packages/context/agent-instructions/src/index.ts

@@ -33,7 +33,6 @@ import { instructionCandidateGroup, instructionScopeKey, scopeForDisplayPath, ty
 
 export { Config }
 export { name } from './state.ts'
-export type { AgentInstructionSource } from './state.ts'
 export {
   discoverBaselineInstructionFiles,
   loadBaselineInstructions,