diff --git a/docs/auth-architecture.md b/docs/auth-architecture.md
index 33ea4077..a5135dcb 100644
--- a/docs/auth-architecture.md
+++ b/docs/auth-architecture.md
@@ -135,3 +135,4 @@ attempting privileged calls.
 
 - [`docs/nostr-auth.md`](nostr-auth.md)
 - [`docs/nip46-remote-signers.md`](nip46-remote-signers.md)
+- [`docs/signing-adapter.md`](signing-adapter.md)
diff --git a/docs/nostr-event-schemas.md b/docs/nostr-event-schemas.md
index 36120e64..ec12fc73 100644
--- a/docs/nostr-event-schemas.md
+++ b/docs/nostr-event-schemas.md
@@ -85,6 +85,9 @@ sign/encrypt calls. Call `clearActiveSigner()` on logout if your integration
 manages session state manually; the built-in logout handler already does this
 for the default extension flow.
 
+For adapter implementation details and test guidance, see
+[`docs/signing-adapter.md`](signing-adapter.md).
+
 ### Accessing raw events
 
 `NostrClient` now keeps a lightweight cache of parsed videos alongside a