From 599fad0e86a1a65ea60f7690195e936d806916cf Mon Sep 17 00:00:00 2001
From: justsisyphus <justsisyphus@users.noreply.github.com>
Date: Fri, 23 Jan 2026 15:42:35 +0900
Subject: [PATCH] fix(atlas): capture stderr from git commands to prevent help
 text leak

When git commands fail (e.g., not in a repo, invalid HEAD), git outputs
help text to stderr. Without explicit stdio option, execSync inherits
the parent's stdio causing help text to appear on terminal during
delegate_task execution.

Add stdio: ['pipe', 'pipe', 'pipe'] to capture stderr instead of
letting it leak to terminal.
---
 src/hooks/atlas/index.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/hooks/atlas/index.ts b/src/hooks/atlas/index.ts
index fad307576..a8809ed60 100644
--- a/src/hooks/atlas/index.ts
+++ b/src/hooks/atlas/index.ts
@@ -274,6 +274,7 @@ function getGitDiffStats(directory: string): GitFileStat[] {
       cwd: directory,
       encoding: "utf-8",
       timeout: 5000,
+      stdio: ["pipe", "pipe", "pipe"],
     }).trim()
 
     if (!output) return []
@@ -282,6 +283,7 @@ function getGitDiffStats(directory: string): GitFileStat[] {
       cwd: directory,
       encoding: "utf-8",
       timeout: 5000,
+      stdio: ["pipe", "pipe", "pipe"],
     }).trim()
 
     const statusMap = new Map<string, "modified" | "added" | "deleted">()