fix(langchain/createAgent): export all symbols so TypeScript can properly infer types

libs/langchain/src/agents/index.ts

@@ -33,6 +33,7 @@ import type {
 export * from "./types.js";
 export * from "./errors.js";
 export * from "./interrupt.js";
+export * from "./annotation.js";
 export { ToolNode } from "./nodes/ToolNode.js";
 export {
   toolStrategy,

libs/langchain/src/agents/interrupt.ts

@@ -1,4 +1,5 @@
 export { interrupt } from "@langchain/langgraph";
+import type { ActionRequest } from "./middlewareAgent/middleware/hitl.js";
 
 /**
  * Represents information about an interrupt.
@@ -37,22 +38,6 @@ export interface HumanInterruptConfig {
   allow_accept: boolean;
 }
 
-/**
- * Represents a request for human action within the graph execution.
- * Contains the action type and any associated arguments needed for the action.
- */
-export interface ActionRequest {
-  /**
-   * The type or name of action being requested (e.g., "Approve XYZ action")
-   */
-  action: string;
-  /**
-   * Key-value pairs of arguments needed for the action
-   */
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  args: Record<string, any>;
-}
-
 /**
  * Represents an interrupt triggered by the graph that requires human intervention.
  * This is passed to the `interrupt` function when execution is paused for human input.

libs/langchain/src/agents/middlewareAgent/middleware/hitl.ts

@@ -31,20 +31,6 @@ const ToolConfigSchema = z.object({
 type ToolConfigSchema = z.input<typeof ToolConfigSchema>;
 type ToolCall = NonNullable<AIMessage["tool_calls"]>[number];
 
-/**
- * Represents information about an interrupt.
- */
-export interface Interrupt<TValue = unknown> {
-  /**
-   * The ID of the interrupt.
-   */
-  id: string;
-  /**
-   * The requests for human input.
-   */
-  value: TValue;
-}
-
 /**
  * Configuration that defines which reviewer response types are permitted during a human interrupt.
  * These flags control what the human reviewer may do (e.g., accept/edit/respond),

libs/langchain/src/agents/middlewareAgent/types.ts

@@ -33,12 +33,25 @@ import type {
   JsonSchemaFormat,
 } from "../responses.js";
 import type { ResponseFormatUndefined } from "../annotation.js";
-import type { Interrupt } from "../interrupt.js";
 import type { ToolNode } from "../nodes/ToolNode.js";
 import type { ClientTool, ServerTool } from "../types.js";
 
 export type N = typeof START | "model_request" | "tools";
 
+/**
+ * Represents information about an interrupt.
+ */
+export interface Interrupt<TValue = unknown> {
+  /**
+   * The ID of the interrupt.
+   */
+  id: string;
+  /**
+   * The requests for human input.
+   */
+  value: TValue;
+}
+
 export interface BuiltInState {
   messages: BaseMessage[];
   __interrupt__?: Interrupt[];

libs/langchain/src/index.ts

@@ -36,22 +36,7 @@ export {
 /**
  * LangChain Agents
  */
-export {
-  createAgent,
-  createMiddleware,
-  toolStrategy,
-  providerStrategy,
-  ToolNode,
-  type ReactAgent,
-  type AgentState,
-  type AgentRuntime,
-  type AgentMiddleware,
-  type HumanInterrupt,
-  type HumanInterruptConfig,
-  type ActionRequest,
-  type HumanResponse,
-  type Interrupt,
-} from "./agents/index.js";
+export * from "./agents/index.js";
 
 /**
  * `createAgent` pre-built middleware