diff --git a/src/hooks/useAccount.ts b/src/hooks/useAccount.ts
index bd30c51..4e25797 100644
--- a/src/hooks/useAccount.ts
+++ b/src/hooks/useAccount.ts
@@ -2,6 +2,19 @@ import { useMemo } from "react";
 import { use$ } from "applesauce-react/hooks";
 import accounts from "@/services/accounts";
 
+/**
+ * Check if an account can sign events
+ * Read-only accounts cannot sign and should not be prompted for auth
+ *
+ * @param account - The account to check (can be undefined)
+ * @returns true if the account can sign, false otherwise
+ */
+export function canAccountSign(account: typeof accounts.active): boolean {
+  if (!account) return false;
+  const accountType = account.constructor.name;
+  return accountType !== "ReadonlyAccount";
+}
+
 /**
  * Hook to access the active account with signing capability detection
  *
@@ -45,18 +58,8 @@ export function useAccount() {
 
     // Check if the account has a functional signer
     // Read-only accounts have a signer that throws errors on sign operations
-    // We detect this by checking for the ReadonlySigner type or checking signer methods
     const signer = account.signer;
-    let canSign = false;
-
-    if (signer) {
-      // ReadonlyAccount from applesauce-accounts has a ReadonlySigner
-      // that throws on signEvent, nip04, nip44 operations
-      // We can detect it by checking if it's an instance with the expected methods
-      // but we'll use a safer approach: check the account type name
-      const accountType = account.constructor.name;
-      canSign = accountType !== "ReadonlyAccount";
-    }
+    const canSign = canAccountSign(account);
 
     return {
       account,
diff --git a/src/services/relay-state-manager.ts b/src/services/relay-state-manager.ts
index 3e1bfc4..9cb247d 100644
--- a/src/services/relay-state-manager.ts
+++ b/src/services/relay-state-manager.ts
@@ -9,6 +9,7 @@ import type {
 import { transitionAuthState, type AuthEvent } from "@/lib/auth-state-machine";
 import { createLogger } from "@/lib/logger";
 import { normalizeRelayURL } from "@/lib/relay-url";
+import { canAccountSign } from "@/hooks/useAccount";
 import pool from "./relay-pool";
 import accountManager from "./accounts";
 import db from "./db";
@@ -19,16 +20,6 @@ const MAX_NOTICES = 20;
 const MAX_ERRORS = 20;
 const CHALLENGE_TTL = 5 * 60 * 1000; // 5 minutes in milliseconds
 
-/**
- * Check if an account can sign events
- * Read-only accounts cannot sign and should not be prompted for auth
- */
-function canAccountSign(account: typeof accountManager.active): boolean {
-  if (!account) return false;
-  const accountType = account.constructor.name;
-  return accountType !== "ReadonlyAccount";
-}
-
 /**
  * Observable values emitted by relay observables
  * Note: Using startWith() to ensure immediate emission with current values