diff --git a/src/gpu_index/common/http.py b/src/gpu_index/common/http.py
index c82f8e4..b56325d 100644
--- a/src/gpu_index/common/http.py
+++ b/src/gpu_index/common/http.py
@@ -22,14 +22,11 @@
 from contextlib import contextmanager
 from typing import Iterator, Optional
 
-# One identity across every repository that collects for this index. The
-# +URL is getcomputable.com and NOT this repository: a repo URL stops
-# resolving if the repo is renamed or made private, and a 404 is no better
-# than no contact at all.
-UA = (
-    "CGI-Collector/1.0 (+https://getcomputable.com; "
-    "team@getcomputable.com)"
-)
+# The User-Agent sent with every request: a neutral product token, not a
+# library default and not a browser string. An operator running this code
+# under their own identity can install a different value for a scope with
+# user_agent_scope().
+UA = "gpu-index/1.0"
 _USER_AGENT_OVERRIDE: contextvars.ContextVar[Optional[str]] = contextvars.ContextVar(
     "gpu_index_user_agent_override", default=None
 )
diff --git a/tests/unit/test_public_read_backend.py b/tests/unit/test_public_read_backend.py
index e554071..135c4f1 100644
--- a/tests/unit/test_public_read_backend.py
+++ b/tests/unit/test_public_read_backend.py
@@ -72,7 +72,7 @@ def test_from_env_without_public_url_keeps_local_default(tmp_path):
 # ------------------------------------------------------- get-object reads
 
 
-def test_get_bytes_returns_body_with_cgi_user_agent():
+def test_get_bytes_returns_body_with_collector_user_agent():
     seen = {}
 
     def handler(request: httpx.Request) -> httpx.Response:
@@ -87,10 +87,7 @@ def handler(request: httpx.Request) -> httpx.Response:
         f"{BASE_URL}/index/basket/composites/m1/2026-08-16.json"
     )
     assert seen["ua"] == UA
-    assert "CGI-Collector/" in seen["ua"]
-    # No browser prefix: the UA is a public identity, and the bot
-    # protection on the collected hosts screens an unidentified client,
-    # not the absence of a browser string.
+    # The token claims no browser.
     assert not seen["ua"].lower().startswith("mozilla/")