From 5a4a67f7b8358564fb9337f2955553f166ad57bd Mon Sep 17 00:00:00 2001
From: Daniel Bast <2790401+dbast@users.noreply.github.com>
Date: Sun, 1 Nov 2026 14:21:51 +0100
Subject: [PATCH] fix(progress): Detect Ghostty through TERM over SSH

Recognize TERM=xterm-ghostty alongside TERM_PROGRAM=ghostty.

Observed in a Ghostty SSH session: stderr was a TTY and TERM was
xterm-ghostty, but TERM_PROGRAM was absent because the server did
not accept environment forwarding (default for OpenSSH). Progress
detection therefore returned false despite the terminal supporting
OSC 9;4.

SSH sends TERM when requesting a PTY without requiring AcceptEnv.
This fallback enables detection in that setup without SSH server
configuration changes. The existing TTY gate remains unchanged;
generic xterm values are not treated as supporting progress.

The same exact TERM fallback is also used here:
https://github.com/MoonshotAI/kimi-code/blob/main/apps/kimi-code/src/tui/utils/terminal-notification.ts

References:
https://ghostty.org/docs/help/terminfo
https://ghostty.org/docs/install/release-notes/1-2-0#graphical-progress-bars
---
 crates/anstyle-progress/src/query.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/crates/anstyle-progress/src/query.rs b/crates/anstyle-progress/src/query.rs
index 7e8af688..d006676b 100644
--- a/crates/anstyle-progress/src/query.rs
+++ b/crates/anstyle-progress/src/query.rs
@@ -21,6 +21,16 @@ pub fn supports_term_progress(is_terminal: bool) -> bool {
         return true;
     }
 
+    // Ghostty is detected through TERM_PROGRAM locally and over SSH when the
+    // client requests forwarding and the server's AcceptEnv permits it.
+    // SSH also carries TERM in PTY requests independently of AcceptEnv, so
+    // xterm-ghostty identifies sessions without TERM_PROGRAM forwarding.
+    // This fallback does not apply when SSH integration or user configuration
+    // substitutes xterm-256color.
+    if std::env::var("TERM").as_deref() == Ok("xterm-ghostty") {
+        return true;
+    }
+
     // https://github.com/microsoft/terminal/pull/8055
     if std::env::var("WT_SESSION").is_ok() {
         return true;