diff --git a/src/types/ids.ts b/src/types/ids.ts
index 9da0796..183c958 100644
--- a/src/types/ids.ts
+++ b/src/types/ids.ts
@@ -42,3 +42,4 @@ const AGENT_ID_PATTERN = /^a(?:.+-)?[0-9a-f]{16}$/
 export function toAgentId(s: string): AgentId | null {
   return AGENT_ID_PATTERN.test(s) ? (s as AgentId) : null
 }
+