feat: make slash commands available in draft agent screen

packages/server/src/shared/messages.list-commands.test.ts

@@ -0,0 +1,46 @@
+import { describe, expect, test } from "vitest";
+import { SessionInboundMessageSchema } from "./messages.js";
+
+describe("list_commands_request schema", () => {
+  test("accepts legacy agent-only payload", () => {
+    const parsed = SessionInboundMessageSchema.parse({
+      type: "list_commands_request",
+      agentId: "agent-123",
+      requestId: "req-123",
+    });
+
+    expect(parsed.type).toBe("list_commands_request");
+    if (parsed.type !== "list_commands_request") {
+      throw new Error("Expected list_commands_request message");
+    }
+    expect(parsed.agentId).toBe("agent-123");
+    expect(parsed.draftConfig).toBeUndefined();
+  });
+
+  test("accepts draft command context payload", () => {
+    const parsed = SessionInboundMessageSchema.parse({
+      type: "list_commands_request",
+      agentId: "__new_agent__",
+      draftConfig: {
+        provider: "codex",
+        cwd: "/tmp/project",
+        modeId: "bypassPermissions",
+        model: "gpt-5",
+        thinkingOptionId: "off",
+      },
+      requestId: "req-456",
+    });
+
+    expect(parsed.type).toBe("list_commands_request");
+    if (parsed.type !== "list_commands_request") {
+      throw new Error("Expected list_commands_request message");
+    }
+    expect(parsed.draftConfig).toEqual({
+      provider: "codex",
+      cwd: "/tmp/project",
+      modeId: "bypassPermissions",
+      model: "gpt-5",
+      thinkingOptionId: "off",
+    });
+  });
+});

packages/server/src/shared/messages.ts

@@ -926,9 +926,18 @@ export const PingMessageSchema = z.object({
   clientSentAt: z.number().int().optional(),
 });
 
+const ListCommandsDraftConfigSchema = z.object({
+  provider: AgentProviderSchema,
+  cwd: z.string(),
+  modeId: z.string().optional(),
+  model: z.string().optional(),
+  thinkingOptionId: z.string().optional(),
+});
+
 export const ListCommandsRequestSchema = z.object({
   type: z.literal("list_commands_request"),
   agentId: z.string(),
+  draftConfig: ListCommandsDraftConfigSchema.optional(),
   requestId: z.string(),
 });