Send Devin Desktop Windsurf version instead of CLI build id.

extensions/index.ts

@@ -3,6 +3,7 @@ import type { Api, Model, OAuthCredentials, OAuthLoginCallbacks } from "@earendi
 import { authStatus, loginWithCli, readCredentials } from "../src/credentials.js";
 import { whichDevin, devinVersion } from "../src/cli.js";
 import { FALLBACK_MODELS, loadCliCatalog, modelsFromCatalog } from "../src/models.js";
+import { CLIENT_IDE, CLIENT_VERSION } from "../src/metadata.js";
 import { streamDevin } from "../src/stream.js";
 
 const PROVIDER_ID = "devin";
@@ -86,7 +87,8 @@ export default async function (pi: ExtensionAPI): Promise<void> {
       ctx.ui.notify(
         [
           bin ? `CLI: ${bin}` : "CLI: not found",
-          version ? `Version: ${version}` : "Version: unknown",
+          version ? `CLI version: ${version}` : "CLI version: unknown",
+          `Client identity: ${CLIENT_IDE} ${CLIENT_VERSION}`,
           status.loggedIn ? "Auth: signed in via Devin CLI" : "Auth: not signed in. Run /login devin or `devin auth login`",
         ].join("\n"),
         status.loggedIn && bin ? "info" : "warning",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pi-devin",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Pi provider for Devin Local models. Auth and catalog come from the local Devin CLI; Pi stays the harness.",
   "type": "module",
   "keywords": [

src/metadata.ts

@@ -1,3 +1,4 @@
+import { existsSync, readFileSync } from "node:fs";
 import {
   encodeMessage,
   encodeString,
@@ -5,7 +6,30 @@ import {
   encodeVarintField,
 } from "./wire.js";
 
-const DEFAULT_VERSION = "3000.4.25";
+/**
+ * Cognition version-gates GetChatMessage against a known Windsurf/Devin Desktop
+ * release. The Devin CLI build id (`3000.4.25`) is not that string and the
+ * server answers: "Your Windsurf version is out of date."
+ * Prefer the installed Devin.app product.json, then a current desktop release.
+ */
+const FALLBACK_WINDSURF_VERSION = "3.6.27";
+const PRODUCT_JSON =
+  "/Applications/Devin.app/Contents/Resources/app/product.json";
+
+function desktopWindsurfVersion(): string {
+  try {
+    if (!existsSync(PRODUCT_JSON)) return FALLBACK_WINDSURF_VERSION;
+    const product = JSON.parse(readFileSync(PRODUCT_JSON, "utf8")) as {
+      windsurfVersion?: string;
+    };
+    return product.windsurfVersion || FALLBACK_WINDSURF_VERSION;
+  } catch {
+    return FALLBACK_WINDSURF_VERSION;
+  }
+}
+
+export const CLIENT_VERSION = desktopWindsurfVersion();
+export const CLIENT_IDE = "windsurf";
 
 export interface MetadataInput {
   apiKey: string;
@@ -14,10 +38,12 @@ export interface MetadataInput {
   requestId: bigint;
   triggerId: string;
   version?: string;
+  ide?: string;
 }
 
 export function buildMetadata(input: MetadataInput): Buffer {
-  const version = input.version ?? DEFAULT_VERSION;
+  const version = input.version ?? CLIENT_VERSION;
+  const ide = input.ide ?? CLIENT_IDE;
   const os =
     process.platform === "darwin"
       ? "darwin"
@@ -25,7 +51,7 @@ export function buildMetadata(input: MetadataInput): Buffer {
         ? "windows"
         : "linux";
   const parts: Buffer[] = [
-    encodeString(1, "devin"),
+    encodeString(1, ide),
     encodeString(2, version),
     encodeString(3, input.apiKey),
     encodeString(4, "en"),
@@ -33,11 +59,11 @@ export function buildMetadata(input: MetadataInput): Buffer {
     encodeString(7, version),
     encodeVarintField(9, input.requestId),
     encodeString(10, input.sessionId),
-    encodeString(12, "devin"),
+    encodeString(12, ide),
     encodeMessage(16, encodeTimestampBody()),
     encodeString(25, input.triggerId),
     encodeString(26, "Unset"),
-    encodeString(28, "devin"),
+    encodeString(28, ide),
   ];
   if (input.userJwt) parts.push(encodeString(21, input.userJwt));
   return Buffer.concat(parts);