From 812181e6043e3060b18e4f1246e8394077cbe6e1 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 21 Feb 2026 10:02:12 +0000
Subject: [PATCH 1/2] Initial plan


From d8140d81b072a41ebd27660aa1491be5afd6a717 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 21 Feb 2026 10:11:00 +0000
Subject: [PATCH 2/2] Port upstream PR #329: hide CLI console window on Windows

Add explicit PIPE redirect configuration to ProcessBuilder in spawn-cli,
ensuring the JVM sets CREATE_NO_WINDOW on Windows. This prevents a
console window from appearing when spawning the CLI from GUI applications.

The JVM's ProcessImpl already uses CREATE_NO_WINDOW when all stdio handles
are pipes (not inherited from parent console). Making the PIPE redirects
explicit documents this intent and protects against regressions.

Co-authored-by: krukow <3635+krukow@users.noreply.github.com>
---
 CHANGELOG.md                       | 3 +++
 src/github/copilot_sdk/process.clj | 9 ++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c541c6a..31391e6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,9 @@ All notable changes to this project will be documented in this file. This change
 
 ## [Unreleased]
 
+### Added (upstream PR #329 sync)
+- Windows console window hiding: CLI process is spawned with explicit PIPE redirects ensuring the JVM sets `CREATE_NO_WINDOW` on Windows — no console window appears in GUI applications. Equivalent to upstream `windowsHide: true` (upstream PR #329).
+
 ### Changed
 - Recommended default model for non-streaming examples is `claude-haiku-4.5` instead of `gpt-5.2` for faster response times
 
diff --git a/src/github/copilot_sdk/process.clj b/src/github/copilot_sdk/process.clj
index 220b76b..251d497 100644
--- a/src/github/copilot_sdk/process.clj
+++ b/src/github/copilot_sdk/process.clj
@@ -68,7 +68,14 @@
       (when github-token
         (.put env-map "COPILOT_SDK_AUTH_TOKEN" github-token)))
 
-    ;; Configure stdio
+    ;; Configure stdio — use explicit PIPE redirects for all three streams.
+    ;; On Windows, the JVM's ProcessImpl sets CREATE_NO_WINDOW when none of the
+    ;; child's stdio handles are inherited from the parent console. By ensuring
+    ;; PIPE (not INHERIT) for stdin, stdout, and stderr, we guarantee no
+    ;; console window appears — equivalent to upstream windowsHide: true (PR #329).
+    (.redirectInput builder ProcessBuilder$Redirect/PIPE)
+    (.redirectOutput builder ProcessBuilder$Redirect/PIPE)
+    (.redirectError builder ProcessBuilder$Redirect/PIPE)
     (.redirectErrorStream builder false)
 
     (let [process (.start builder)