diff --git a/TODO b/TODO
index 00a6d22..1071f90 100644
--- a/TODO
+++ b/TODO
@@ -261,3 +261,20 @@ Description: Add byteb4rb1e.utils.config: INI-backed config dataclasses where a
              KEY=VALUE flag (apply_overrides, format_help), and the companion
              argparse KeyValueAction (byteb4rb1e.utils.argparse.actions) that
              accumulates KEY=VALUE pairs into a dict.
+
+--ISSUE
+Content-Type: application/issue
+ID: 20
+Type: feature
+Title: cookie-persisting HTTP session client
+Status: open
+Priority: medium
+Created: 2026-06-06
+Relationships: 
+Description: Extend byteb4rb1e.utils.http.client with an HttpSession class that
+             persists cookies across requests via http.cookiejar (suitable for
+             login followed by cookie-authenticated page fetches), supporting
+             GET with query params, form-encoded POST, default/per-request
+             header merging, and HTTPError-to-response conversion. Also refactor
+             HttpResponse into a frozen dataclass with text as a derived
+             property.