From e6daf095117d4de143209a820b4123e3ea5f1f57 Mon Sep 17 00:00:00 2001
From: jpoehnelt-bot <jpoehnelt-bot@users.noreply.github.com>
Date: Wed, 4 Mar 2026 11:40:43 -0700
Subject: [PATCH] fix: use gl-rust/ prefix in x-goog-api-client header

---
 .changeset/fix-api-client-header.md | 5 +++++
 src/client.rs                       | 4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/fix-api-client-header.md

diff --git a/.changeset/fix-api-client-header.md b/.changeset/fix-api-client-header.md
new file mode 100644
index 00000000..fd2f9278
--- /dev/null
+++ b/.changeset/fix-api-client-header.md
@@ -0,0 +1,5 @@
+---
+"@googleworkspace/cli": patch
+---
+
+Fix x-goog-api-client header format to use `gl-rust/gws-<version>`
diff --git a/src/client.rs b/src/client.rs
index 7e237dbb..eb838852 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -5,8 +5,8 @@ pub fn build_client() -> Result<reqwest::Client, crate::error::GwsError> {
     let name = env!("CARGO_PKG_NAME");
     let version = env!("CARGO_PKG_VERSION");
 
-    // Format: name/version
-    let client_header = format!("{}/{}", name, version);
+    // Format: gl-rust/name-version (the gl-rust/ prefix is fixed)
+    let client_header = format!("gl-rust/{}-{}", name, version);
     if let Ok(header_value) = HeaderValue::from_str(&client_header) {
         headers.insert("x-goog-api-client", header_value);
     }