add base agent

typescript/contracts/IAgent.ts

@@ -0,0 +1,8 @@
+import { AgentId } from "./IAgentRuntime";
+
+export interface IAgent {
+  readonly id: AgentId;
+  onMessageAsync(message: unknown, context: unknown): Promise<unknown>;
+  saveStateAsync(): Promise<unknown>;
+  loadStateAsync(state: unknown): Promise<void>;
+}

typescript/core/BaseAgent.ts

@@ -0,0 +1,32 @@
+import { IAgentRuntime, AgentId } from "../contracts/IAgentRuntime";
+import { IAgent } from "../contracts/IAgent";
+
+export abstract class BaseAgent implements IAgent {
+  public readonly id: AgentId;
+  protected runtime: IAgentRuntime;
+  protected description: string;
+
+  constructor(id: AgentId, runtime: IAgentRuntime, description: string) {
+    this.id = id;
+    this.runtime = runtime;
+    this.description = description;
+  }
+
+  get metadata() {
+    return {
+      type: this.id.type,
+      key: this.id.key,
+      description: this.description
+    };
+  }
+
+  async onMessageAsync(message: unknown, context: unknown): Promise<unknown> {
+    return null;
+  }
+
+  async saveStateAsync(): Promise<unknown> {
+    return {};
+  }
+
+  async loadStateAsync(state: unknown): Promise<void> {}
+}