diff --git a/.changeset/curly-radios-visit.md b/.changeset/curly-radios-visit.md
index eae5d349f..45a3341c0 100644
--- a/.changeset/curly-radios-visit.md
+++ b/.changeset/curly-radios-visit.md
@@ -8,3 +8,4 @@ Add a new `@trigger.dev/ai` package with:
 - a typed `TriggerChatTransport` that plugs into AI SDK UI `useChat()` and runs chat backends as Trigger.dev tasks
 - rich default task payloads (`chatId`, trigger metadata, messages, request context) with optional payload mapping
 - reconnect-aware stream handling on top of Trigger.dev Realtime Streams v2
+- strict `baseURL` normalization/validation (trimming, path-safe slash handling, absolute `http(s)` URLs only, no query/hash/credentials)