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sanitizedMessagescurrently preserves non-image parts but can leave a message withcontent: []after filtering. Depending on howquerySuggestorbuilds prompts, empty assistant/user messages can degrade results or cause edge-case failures (e.g., models or prompt builders expecting non-empty content). It’s safer to drop messages that become empty after sanitization, or replace them with a minimal text placeholder.Also, this uses an
as CoreMessageassertion even though you already annotated the array asCoreMessage[]. Prefer avoiding assertions here by constructing a value that naturally satisfies the type, or by narrowing in a way that doesn’t require casting—casts can mask future regressions when message shapes evolve.Suggestion
Consider filtering out messages that become empty after removing image parts, and avoid the type assertion.
Example:
If you need to preserve message count, you could replace empty array content with a short text part instead.
Reply with "@CharlieHelps yes please" if you'd like me to add a commit with this change.