agent: @U0AJM7X8FBR API - I want to support Resend in our current implementatio

README.md

@@ -177,4 +177,65 @@ Set this in your `.env` (local) or in your hosting provider's environment variab
 
 ## Accessing Mainnet
 
-To access the mainnet facilitator in Next.js, simply install and use the `@coinbase/x402` package. 
+To access the mainnet facilitator in Next.js, simply install and use the `@coinbase/x402` package.
+
+## Testing Resend Email Integration
+
+The coding agent supports email conversations via Resend. To test this integration:
+
+### 1. Configure Environment Variables
+
+Ensure these environment variables are set in your `.env`:
+
+```bash
+RESEND_API_KEY=re_your_api_key_here
+# Optional: for webhook signature verification
+RESEND_WEBHOOK_SECRET=whsec_your_webhook_secret_here
+```
+
+### 2. Set Up Resend Webhook
+
+In your [Resend dashboard](https://resend.com/dashboard/webhooks):
+
+1. Create a new webhook
+2. Set the endpoint URL to: `https://<your-host>/api/coding-agent/resend`
+3. Select events: `email.sent`, `email.delivered`, `email.opened`, `email.clicked`, `email.bounced`
+4. Copy the webhook signing secret and set it as `RESEND_WEBHOOK_SECRET`
+
+### 3. Send a Test Email
+
+Send an email to `[email protected]` with:
+- **Subject**: Your request (e.g., "Fix the login bug")
+- **Body**: Detailed description of what you want the coding agent to do
+
+The coding agent will:
+1. Receive the email via Resend webhook
+2. Create a new thread (same as a Slack mention)
+3. Process your request
+4. Reply via email with the results
+
+### 4. Test Reply Threading
+
+Reply to the agent's email to continue the conversation. The email threading uses standard `Message-ID` and `In-Reply-To` headers, so replies are automatically grouped into the same Chat SDK thread.
+
+### 5. Local Development with ngrok
+
+For local testing, use [ngrok](https://ngrok.com/) to expose your local server:
+
+```bash
+# Terminal 1: Start the dev server
+pnpm dev
+
+# Terminal 2: Expose via ngrok
+npx ngrok http 3000
+
+# Update Resend webhook URL to: https://<ngrok-id>.ngrok.io/api/coding-agent/resend
+```
+
+### 6. Verify in Logs
+
+Check the server logs for:
+- `POST /api/coding-agent/resend` — Webhook received
+- `Syncing monorepo submodules` — Submodule sync before changes
+- `Agent completed` — Coding agent finished
+- Email sent confirmation via Resend

lib/coding-agent/__tests__/bot.test.ts

@@ -12,6 +12,12 @@ vi.mock("@chat-adapter/github", () => ({
   }),
 }));
 
+vi.mock("@resend/chat-sdk-adapter", () => ({
+  createResendAdapter: vi.fn().mockReturnValue({
+    name: "resend",
+  }),
+}));
+
 vi.mock("@chat-adapter/state-ioredis", () => ({
   createIoRedisState: vi.fn().mockReturnValue({
     connect: vi.fn(),
@@ -126,4 +132,29 @@ describe("createCodingAgentBot", () => {
     const lastCall = vi.mocked(Chat).mock.calls.at(-1)!;
     expect(lastCall[0].userName).toBe("Recoup Agent");
   });
+
+  it("creates a Chat instance with resend adapter", async () => {
+    const { Chat } = await import("chat");
+    const { createCodingAgentBot } = await import("../bot");
+
+    createCodingAgentBot();
+
+    const lastCall = vi.mocked(Chat).mock.calls.at(-1)!;
+    const config = lastCall[0];
+    expect(config.adapters).toHaveProperty("resend");
+  });
+
+  it("creates Resend adapter with correct from address", async () => {
+    const { createResendAdapter } = await import("@resend/chat-sdk-adapter");
+    const { createCodingAgentBot } = await import("../bot");
+
+    createCodingAgentBot();
+
+    expect(createResendAdapter).toHaveBeenCalledWith(
+      expect.objectContaining({
+        fromAddress: "[email protected]",
+        fromName: "Recoup Agent",
+      }),
+    );
+  });
 });

lib/coding-agent/bot.ts

@@ -1,10 +1,12 @@
 import { Chat, ConsoleLogger } from "chat";
 import { SlackAdapter } from "@chat-adapter/slack";
 import { createGitHubAdapter } from "@chat-adapter/github";
+import { createResendAdapter } from "@resend/chat-sdk-adapter";
 import { createIoRedisState } from "@chat-adapter/state-ioredis";
 import redis from "@/lib/redis/connection";
 import type { CodingAgentThreadState } from "./types";
 import { validateCodingAgentEnv } from "./validateEnv";
+import { CODING_AGENT_FROM_EMAIL } from "./const";
 
 const logger = new ConsoleLogger();
 
@@ -40,9 +42,18 @@ export function createCodingAgentBot() {
     logger,
   });
 
-  return new Chat<{ slack: SlackAdapter; github: ReturnType<typeof createGitHubAdapter> }, CodingAgentThreadState>({
+  const resend = createResendAdapter({
+    fromAddress: CODING_AGENT_FROM_EMAIL,
+    fromName: "Recoup Agent",
+  });
+
+  return new Chat<{
+    slack: SlackAdapter;
+    github: ReturnType<typeof createGitHubAdapter>;
+    resend: ReturnType<typeof createResendAdapter>;
+  }, CodingAgentThreadState>({
     userName: "Recoup Agent",
-    adapters: { slack, github },
+    adapters: { slack, github, resend },
     state,
   });
 }

lib/coding-agent/const.ts

@@ -0,0 +1,4 @@
+/**
+ * The from email address used by the coding agent for Resend emails.
+ */
+export const CODING_AGENT_FROM_EMAIL = "[email protected]";

package.json

@@ -24,6 +24,7 @@
     "@chat-adapter/github": "^4.15.0",
     "@chat-adapter/slack": "^4.15.0",
     "@chat-adapter/state-ioredis": "^4.15.0",
+    "@resend/chat-sdk-adapter": "^0.1.0",
     "@coinbase/cdp-sdk": "^1.38.6",
     "@coinbase/x402": "^0.7.3",
     "@composio/core": "^0.3.4",