From 1ebba3b7b6062974f72500fceca9afa27b38b094 Mon Sep 17 00:00:00 2001
From: Vojta Bartos <vojtech.b@posthog.com>
Date: Tue, 19 May 2026 17:27:45 +0200
Subject: [PATCH] feat(agent): route slack-originated tasks to slack_app
 gateway product

---
 ...agent-server.configure-environment.test.ts | 40 ++++++++++++++++++-
 packages/agent/src/server/agent-server.ts     |  3 +-
 packages/agent/src/types.ts                   |  3 +-
 packages/agent/src/utils/gateway.ts           |  9 ++++-
 4 files changed, 51 insertions(+), 4 deletions(-)

diff --git a/packages/agent/src/server/agent-server.configure-environment.test.ts b/packages/agent/src/server/agent-server.configure-environment.test.ts
index 23e3ed33d..d28464530 100644
--- a/packages/agent/src/server/agent-server.configure-environment.test.ts
+++ b/packages/agent/src/server/agent-server.configure-environment.test.ts
@@ -1,10 +1,11 @@
 import { afterEach, beforeEach, describe, expect, it } from "vitest";
+import type { Task } from "../types";
 import { AgentServer } from "./agent-server";
 
 interface TestableServer {
   configureEnvironment(args?: {
     isInternal?: boolean;
-    originProduct?: string | null;
+    originProduct?: Task["origin_product"] | null;
     taskId?: string | null;
     taskRunId?: string | null;
     taskUserId?: number | null;
@@ -148,6 +149,43 @@ describe("AgentServer.configureEnvironment", () => {
     );
   });
 
+  it("tags as slack_app when the task was initiated from Slack", () => {
+    buildServer("interactive").configureEnvironment({
+      originProduct: "slack",
+    });
+
+    expect(process.env.LLM_GATEWAY_URL).toBe(
+      "https://gateway.us.posthog.com/slack_app",
+    );
+    expect(process.env.ANTHROPIC_BASE_URL).toBe(
+      "https://gateway.us.posthog.com/slack_app",
+    );
+    expect(process.env.OPENAI_BASE_URL).toBe(
+      "https://gateway.us.posthog.com/slack_app/v1",
+    );
+  });
+
+  it("prefers slack_app over background_agents when both signals are present", () => {
+    buildServer("interactive").configureEnvironment({
+      isInternal: true,
+      originProduct: "slack",
+    });
+
+    expect(process.env.LLM_GATEWAY_URL).toBe(
+      "https://gateway.us.posthog.com/slack_app",
+    );
+  });
+
+  it("falls back to posthog_code for non-slack origin products", () => {
+    buildServer("background").configureEnvironment({
+      originProduct: "user_created",
+    });
+
+    expect(process.env.LLM_GATEWAY_URL).toBe(
+      "https://gateway.us.posthog.com/posthog_code",
+    );
+  });
+
   it("respects the LLM_GATEWAY_URL override regardless of internal flag", () => {
     process.env.LLM_GATEWAY_URL = "http://ngrok.test/proxy";
 
diff --git a/packages/agent/src/server/agent-server.ts b/packages/agent/src/server/agent-server.ts
index 37ea4d8b8..f62ee0bb7 100644
--- a/packages/agent/src/server/agent-server.ts
+++ b/packages/agent/src/server/agent-server.ts
@@ -43,6 +43,7 @@ import type {
   GitCheckpointEvent,
   HandoffLocalGitState,
   LogLevel,
+  Task,
   TaskRun,
   TaskRunArtifact,
 } from "../types";
@@ -1858,7 +1859,7 @@ ${signedCommitInstructions}
     taskUserId,
   }: {
     isInternal?: boolean;
-    originProduct?: string | null;
+    originProduct?: Task["origin_product"] | null;
     taskId?: string | null;
     taskRunId?: string | null;
     taskUserId?: number | null;
diff --git a/packages/agent/src/types.ts b/packages/agent/src/types.ts
index 6047c3e9c..b45443d5c 100644
--- a/packages/agent/src/types.ts
+++ b/packages/agent/src/types.ts
@@ -38,7 +38,8 @@ export interface Task {
     | "user_created"
     | "support_queue"
     | "session_summaries"
-    | "signal_report";
+    | "signal_report"
+    | "slack";
   github_integration?: number | null;
   repository: string; // Format: "organization/repository" (e.g., "posthog/posthog-js")
   json_schema?: Record<string, unknown> | null; // JSON schema for task output validation
diff --git a/packages/agent/src/utils/gateway.ts b/packages/agent/src/utils/gateway.ts
index ff27758b2..a3370bce0 100644
--- a/packages/agent/src/utils/gateway.ts
+++ b/packages/agent/src/utils/gateway.ts
@@ -1,4 +1,8 @@
-export type GatewayProduct = "posthog_code" | "background_agents" | "signals";
+export type GatewayProduct =
+  | "posthog_code"
+  | "background_agents"
+  | "signals"
+  | "slack_app";
 
 export function resolveGatewayProduct({
   isInternal,
@@ -7,6 +11,9 @@ export function resolveGatewayProduct({
   isInternal?: boolean;
   originProduct?: string | null;
 } = {}): GatewayProduct {
+  if (originProduct === "slack") {
+    return "slack_app";
+  }
   if (isInternal) {
     return originProduct === "signal_report" ? "signals" : "background_agents";
   }