What changed
Parse failure, or silent coercion depending on your client.
Affects POST /accounts/{account_id}/ai/websearch.
null → object
Who is affected
Code that reads POST /accounts/{account_id}/ai/websearch (messages[]).
Before and after
| Where | Before | After |
|---|---|---|
| POST /accounts/{account_id}/ai/websearch · messages[] | null | object |
Code that breaks
// payload.messages[0] // was: null // now: object
Based on Cloudflare’s published API specification. How severity is decided.