feat(agent-sdk): add Agent + AgentHandle classes

sdks/typescript-agent-sdk/src/agent.ts

@@ -0,0 +1,135 @@
+/**
+ * Agent — the *definition* of an agent (model, system prompt, tools).
+ *
+ * An Agent is not a VM. Use `agent.createSession()` to spin up a VM that runs
+ * under this agent definition.
+ */
+
+import { requestJson, resolveClient, type ResolvedClient } from "./client/http.js";
+import { SessionHandle } from "./session.js";
+import {
+  type AgentCreateOptions,
+  type AgentInfo,
+  type ClientOptions,
+  type CreateSessionOptions,
+  type ListOptions,
+  type ListResult,
+  type SessionInfo,
+} from "./types.js";
+
+export class AgentHandle {
+  readonly id: string;
+  readonly name: string;
+
+  private readonly _client: ResolvedClient;
+
+  constructor(info: AgentInfo, client: ResolvedClient) {
+    this.id = info.id;
+    this.name = info.name;
+    this._client = client;
+  }
+
+  /** Create a new session running under this agent. */
+  async createSession(options: CreateSessionOptions = {}): Promise<SessionHandle> {
+    const info = await requestJson<SessionInfo>(this._client, {
+      method: "POST",
+      path: `/v1/agents/${encodeURIComponent(this.id)}/sessions`,
+      body: {
+        repos: options.repos ?? [],
+        envVars: options.envVars ?? {},
+        metadata: options.metadata ?? {},
+      },
+    });
+    return new SessionHandle(info, this._client);
+  }
+
+  /** Fetch a session by ID under this agent. */
+  async getSession(sessionId: string): Promise<SessionHandle> {
+    const info = await requestJson<SessionInfo>(this._client, {
+      method: "GET",
+      path: `/v1/agents/${encodeURIComponent(this.id)}/sessions/${encodeURIComponent(sessionId)}`,
+    });
+    return new SessionHandle(info, this._client);
+  }
+
+  /** List sessions running under this agent. */
+  async listSessions(options: ListOptions = {}): Promise<ListResult<SessionInfo>> {
+    const data = await requestJson<{ items: SessionInfo[]; nextCursor?: string }>(
+      this._client,
+      {
+        method: "GET",
+        path: `/v1/agents/${encodeURIComponent(this.id)}/sessions`,
+        query: { limit: options.limit, cursor: options.cursor },
+      }
+    );
+    return { items: data.items ?? [], nextCursor: data.nextCursor };
+  }
+
+  /** Patch the agent definition. */
+  async update(patch: Partial<AgentCreateOptions>): Promise<void> {
+    await requestJson<void>(this._client, {
+      method: "PATCH",
+      path: `/v1/agents/${encodeURIComponent(this.id)}`,
+      body: stripClientOptions(patch),
+    });
+  }
+
+  /** Delete the agent definition. Cascades to its sessions. */
+  async delete(): Promise<void> {
+    await requestJson<void>(this._client, {
+      method: "DELETE",
+      path: `/v1/agents/${encodeURIComponent(this.id)}`,
+    });
+  }
+}
+
+export class Agent {
+  /** Create a new agent definition. */
+  static async create(options: AgentCreateOptions): Promise<AgentHandle> {
+    const client = resolveClient(options);
+    const info = await requestJson<AgentInfo>(client, {
+      method: "POST",
+      path: "/v1/agents",
+      body: stripClientOptions(options),
+    });
+    return new AgentHandle(info, client);
+  }
+
+  /** Fetch an existing agent by ID. */
+  static async get(agentId: string, options: ClientOptions = {}): Promise<AgentHandle> {
+    const client = resolveClient(options);
+    const info = await requestJson<AgentInfo>(client, {
+      method: "GET",
+      path: `/v1/agents/${encodeURIComponent(agentId)}`,
+    });
+    return new AgentHandle(info, client);
+  }
+
+  /** List agents accessible to this API key. */
+  static async list(
+    options: ClientOptions & ListOptions = {}
+  ): Promise<ListResult<AgentInfo>> {
+    const client = resolveClient(options);
+    const data = await requestJson<{ items: AgentInfo[]; nextCursor?: string }>(
+      client,
+      {
+        method: "GET",
+        path: "/v1/agents",
+        query: { limit: options.limit, cursor: options.cursor },
+      }
+    );
+    return { items: data.items ?? [], nextCursor: data.nextCursor };
+  }
+}
+
+function stripClientOptions<T extends Partial<AgentCreateOptions>>(
+  obj: T
+): Omit<T, "apiKey" | "baseUrl" | "fetch" | "timeoutMs" | "maxRetries"> {
+  const { apiKey, baseUrl, fetch, timeoutMs, maxRetries, ...rest } = obj as AgentCreateOptions;
+  void apiKey;
+  void baseUrl;
+  void fetch;
+  void timeoutMs;
+  void maxRetries;
+  return rest as Omit<T, "apiKey" | "baseUrl" | "fetch" | "timeoutMs" | "maxRetries">;
+}