1 files changed, 28 insertions, 0 deletions
diff --git a/internal/tmux/status.go b/internal/tmux/status.go
new file mode 100644
index 0000000..4e1f9e4
--- /dev/null
+++ b/internal/tmux/status.go
@@ -0,0 +1,28 @@
+package tmux
+
+import (
+    "os"
+    "os/exec"
+    "strings"
+)
+
+// Enabled reports whether tmux status updates are enabled via env (default: on).
+func Enabled() bool {
+    v := strings.TrimSpace(os.Getenv("HEXAI_TMUX_STATUS"))
+    if v == "" { return true }
+    v = strings.ToLower(v)
+    return v == "1" || v == "true" || v == "yes" || v == "on"
+}
+
+// SetUserOption sets a global tmux user option like @hexai_status to value.
+func SetUserOption(key, value string) error {
+    if !Enabled() || !HasBinary() || !InSession() { return nil }
+    k := strings.TrimPrefix(strings.TrimSpace(key), "@")
+    if k == "" { return nil }
+    // Use set-option -g so it appears for all windows
+    return exec.Command("tmux", "set-option", "-g", "@"+k, value).Run()
+}
+
+// SetStatus is a convenience for setting @hexai_status.
+func SetStatus(value string) error { return SetUserOption("hexai_status", value) }
+