refactor(discord): extract native command session targets

src/discord/monitor/native-command-session-targets.test.ts

@@ -0,0 +1,37 @@
+import { describe, expect, it } from "vitest";
+import { resolveDiscordNativeCommandSessionTargets } from "./native-command-session-targets.js";
+
+describe("resolveDiscordNativeCommandSessionTargets", () => {
+  it("uses the bound session for both targets when present", () => {
+    expect(
+      resolveDiscordNativeCommandSessionTargets({
+        boundSessionKey: "agent:codex:acp:binding:discord:default:seed",
+        effectiveRoute: {
+          agentId: "codex",
+          sessionKey: "agent:codex:discord:channel:chan-1",
+        },
+        sessionPrefix: "discord:slash",
+        userId: "user-1",
+      }),
+    ).toEqual({
+      sessionKey: "agent:codex:acp:binding:discord:default:seed",
+      commandTargetSessionKey: "agent:codex:acp:binding:discord:default:seed",
+    });
+  });
+
+  it("falls back to the routed slash and command target session keys", () => {
+    expect(
+      resolveDiscordNativeCommandSessionTargets({
+        effectiveRoute: {
+          agentId: "qwen",
+          sessionKey: "agent:qwen:discord:channel:chan-1",
+        },
+        sessionPrefix: "discord:slash",
+        userId: "user-1",
+      }),
+    ).toEqual({
+      sessionKey: "agent:qwen:discord:slash:user-1",
+      commandTargetSessionKey: "agent:qwen:discord:channel:chan-1",
+    });
+  });
+});

src/discord/monitor/native-command-session-targets.ts

@@ -0,0 +1,22 @@
+export type ResolveDiscordNativeCommandSessionTargetsParams = {
+  boundSessionKey?: string;
+  effectiveRoute: {
+    agentId: string;
+    sessionKey: string;
+  };
+  sessionPrefix: string;
+  userId: string;
+};
+
+export function resolveDiscordNativeCommandSessionTargets(
+  params: ResolveDiscordNativeCommandSessionTargetsParams,
+) {
+  const sessionKey =
+    params.boundSessionKey ??
+    `agent:${params.effectiveRoute.agentId}:${params.sessionPrefix}:${params.userId}`;
+  const commandTargetSessionKey = params.boundSessionKey ?? params.effectiveRoute.sessionKey;
+  return {
+    sessionKey,
+    commandTargetSessionKey,
+  };
+}

src/discord/monitor/native-command.ts

@@ -83,6 +83,7 @@ import {
   type DiscordModelPickerCommandContext,
 } from "./model-picker.js";
 import { buildDiscordNativeCommandContext } from "./native-command-context.js";
+import { resolveDiscordNativeCommandSessionTargets } from "./native-command-session-targets.js";
 import {
   buildDiscordRoutePeer,
   resolveDiscordConversationRoute,
@@ -1651,11 +1652,17 @@ async function dispatchDiscordCommandInteraction(params: {
     configuredRoute,
     matchedBy: configuredBinding ? "binding.channel" : undefined,
   });
+  const { sessionKey, commandTargetSessionKey } = resolveDiscordNativeCommandSessionTargets({
+    boundSessionKey,
+    effectiveRoute,
+    sessionPrefix,
+    userId: user.id,
+  });
   const ctxPayload = buildDiscordNativeCommandContext({
     prompt,
     commandArgs,
-    sessionKey: boundSessionKey ?? `agent:${effectiveRoute.agentId}:${sessionPrefix}:${user.id}`,
-    commandTargetSessionKey: boundSessionKey ?? effectiveRoute.sessionKey,
+    sessionKey,
+    commandTargetSessionKey,
     accountId: effectiveRoute.accountId,
     interactionId,
     channelId,