From 59aad3cdf5ed607a16ccbb3de6cdcc185537bae7 Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@codecow.com>
Date: Sun, 9 Aug 2026 22:15:21 -0700
Subject: [PATCH] Fix off-by-one error.

---
 src/lib/vault/vault-worker.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/vault/vault-worker.ts b/src/lib/vault/vault-worker.ts
index 5999caa..e2faa78 100644
--- a/src/lib/vault/vault-worker.ts
+++ b/src/lib/vault/vault-worker.ts
@@ -198,7 +198,7 @@ function derive (index?: Uint32Array): Promise<Record<string, number | ArrayBuff
 		if (index == null) {
 			throw new VaultError('Invalid wallet account index(es)')
 		}
-		if (index.length > MAX_DERIVATIONS) {
+		if (index.length > MAX_DERIVATIONS + 1) {
 			throw new VaultError('Maximum 1000 accounts per call')
 		}
 		const promises = []
-- 
2.52.0