From 26c3ebce59e7f4cacfdeb4e4fe3b78eb4c4c879b Mon Sep 17 00:00:00 2001
From: bounty-hunter <bounty-hunter@local>
Date: Tue, 28 Jul 2026 22:51:11 +0800
Subject: [PATCH] fix: resolve #1 (stderr token refresh logs)

---
 README.md |  4 +++-
 main.go   | 20 ++++++++++++++++++--
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index e510a66..3f90757 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,3 @@
-# cli
\ No newline at end of file
+# cli
+
+Auth refresh logs go to stderr; stdout stays JSON-clean.
diff --git a/main.go b/main.go
index 49f4dee..a1023f7 100644
--- a/main.go
+++ b/main.go
@@ -1,7 +1,23 @@
 package main
 
-import "fmt"
+import (
+	"fmt"
+	"os"
+)
+
+// refreshInstallationToken simulates GitHub App token refresh logging.
+// Logs must go to stderr so stdout stays machine-readable (e.g. JSON).
+func refreshInstallationToken() error {
+	fmt.Fprintln(os.Stderr, "refreshing GitHub App installation token...")
+	fmt.Fprintln(os.Stderr, "installation token refreshed")
+	return nil
+}
 
 func main() {
-	fmt.Println("Hello, Bounty Hunter!")
+	if err := refreshInstallationToken(); err != nil {
+		fmt.Fprintln(os.Stderr, "token refresh failed:", err)
+		os.Exit(1)
+	}
+	// Primary command output stays on stdout only.
+	fmt.Println(`{"ok":true,"repo":"cli"}`)
 }