First version copilot:

- basic llm call that can perform CRUD actions over dummy workflow json files

apps/cli/src/application/assistant/agents/service.ts

@@ -0,0 +1,37 @@
+import { z } from "zod";
+import { Agent } from "../../entities/agent.js";
+import { deleteJson, listJson, readJson, writeJson } from "../services/storage.js";
+
+export type AgentId = string;
+
+export function listAgents(): AgentId[] {
+  return listJson("agents");
+}
+
+export function getAgent(id: AgentId): z.infer<typeof Agent> | undefined {
+  const raw = readJson<unknown>("agents", id);
+  if (!raw) return undefined;
+  return Agent.parse(raw);
+}
+
+export function upsertAgent(
+  id: AgentId,
+  value: Partial<z.infer<typeof Agent>>
+): z.infer<typeof Agent> {
+  const existing = readJson<unknown>("agents", id) as Partial<z.infer<typeof Agent>> | undefined;
+  const merged = {
+    name: id,
+    model: "openai:gpt-4o-mini",
+    description: "",
+    instructions: "",
+    ...(existing ?? {}),
+    ...value,
+  } satisfies Partial<z.infer<typeof Agent>>;
+  const parsed = Agent.parse(merged);
+  writeJson("agents", id, parsed);
+  return parsed;
+}
+
+export function deleteAgent(id: AgentId): boolean {
+  return deleteJson("agents", id);
+}