diff --git a/AGENTS.md b/AGENTS.md
index fddb7eb8..8b7e4248 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -281,6 +281,7 @@ Manual testing workflow:
 - P1 security workstream: remove dynamic SQL string composition/interpolation from active save/create/update paths (`string.Format`, `$"...{input}..."`, `ToSqlParam`) and migrate to parameterized queries only; treat this as a potential SQL injection vulnerability (stability + security risk), execute repo-wide audit, and add CI guardrails to block reintroduction.
 - Alternative UX design (Server component): in `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeSenderPage.razor`, enforce deterministic row double-click behavior as exactly one action (preview OR edit), and keep row action buttons/tooltips aligned with the same rule to eliminate ambiguous navigation.
 - Implement SPA-style language switching so the UI culture updates immediately without a full page reload.
+- Implement sender-scoped caching for "recent receiver suggestions" used during envelope creation (wizard/editor flows): cache key should include sender identity, support short TTL + invalidation hooks after successful envelope receiver writes, and prevent cross-sender suggestion leakage.
 
 ## Database