From 26aea8b69424346af8ec385bcb492b6046254a4b Mon Sep 17 00:00:00 2001
From: danieliyahu1 <danieliyahu1@gmail.com>
Date: Thu, 18 Jun 2026 15:25:29 +0300
Subject: [PATCH] fix(process): spawn opencode.exe directly on Windows to
 prevent visible console window

---
 src/opencode/process.ts        | 31 ++++++++++++++++++++++++++++---
 tests/opencode/process.test.ts |  8 +++-----
 2 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/src/opencode/process.ts b/src/opencode/process.ts
index 4681d8ee..1f192e7a 100644
--- a/src/opencode/process.ts
+++ b/src/opencode/process.ts
@@ -1,4 +1,6 @@
 import { exec, spawn, type ChildProcess } from "node:child_process";
+import { existsSync } from "node:fs";
+import * as path from "node:path";
 import { promisify } from "node:util";
 
 const execAsync = promisify(exec);
@@ -43,16 +45,39 @@ export function resolveLocalOpencodeTarget(apiUrl: string): LocalOpencodeTarget
   }
 }
 
+function resolveWindowsOpencodeExe(): string {
+  const npmPrefix = path.dirname(process.execPath);
+  const candidate = path.join(
+    npmPrefix,
+    "node_modules",
+    "opencode-ai",
+    "bin",
+    "opencode.exe",
+  );
+  if (existsSync(candidate)) {
+    return candidate;
+  }
+  return "opencode.exe";
+}
+
 export function createOpencodeServeSpawnCommand(
   target: LocalOpencodeTarget,
 ): OpencodeServeSpawnCommand {
   const isWindows = process.platform === "win32";
   const port = target.port.toString();
 
+  if (isWindows) {
+    return {
+      command: resolveWindowsOpencodeExe(),
+      args: ["serve", "--port", port],
+      windowsHide: true,
+    };
+  }
+
   return {
-    command: isWindows ? "cmd.exe" : "opencode",
-    args: isWindows ? ["/c", "opencode", "serve", "--port", port] : ["serve", "--port", port],
-    windowsHide: isWindows,
+    command: "opencode",
+    args: ["serve", "--port", port],
+    windowsHide: false,
   };
 }
 
diff --git a/tests/opencode/process.test.ts b/tests/opencode/process.test.ts
index 893b77ea..81a393bd 100644
--- a/tests/opencode/process.test.ts
+++ b/tests/opencode/process.test.ts
@@ -29,11 +29,9 @@ describe("opencode/process", () => {
     const command = createOpencodeServeSpawnCommand({ host: "localhost", port: 4987 });
 
     if (process.platform === "win32") {
-      expect(command).toEqual({
-        command: "cmd.exe",
-        args: ["/c", "opencode", "serve", "--port", "4987"],
-        windowsHide: true,
-      });
+      expect(command.windowsHide).toBe(true);
+      expect(command.command).not.toBe("cmd.exe");
+      expect(command.args).toEqual(["serve", "--port", "4987"]);
       return;
     }