fix: coerce Mistral image_url parts from object to string#3177
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dilanmelvin wants to merge 2 commits into
Open
fix: coerce Mistral image_url parts from object to string#3177dilanmelvin wants to merge 2 commits into
dilanmelvin wants to merge 2 commits into
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Mistral's API expects image_url content parts to be a plain string URL,
not the OpenAI-style { url: string } object that process_input_messages
produces. Without this coercion, sending an image to any Mistral model
that supports vision (mistral-small, mistral-medium, mistral-large,
ministral-*) results in a request error from the Mistral SDK.
Add #coerceImageUrls() as a private method on MistralAIProvider that
maps { type: 'image_url', image_url: { url } } -> { type: 'image_url',
image_url: url } for every content part in every message. Messages with
plain string content are left untouched, as are parts whose image_url is
already a string.
Add four unit tests covering: object-to-string coercion, already-flat
strings, plain string message content, and mixed text+image content.
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Mistral's API expects image_url content parts to be a plain string URL, not the OpenAI-style { url: string } object that process_input_messages produces. Without this coercion, sending an image to any Mistral model that supports vision (mistral-small, mistral-medium, mistral-large, ministral-*) results in a request error from the Mistral SDK.
Add #coerceImageUrls() as a private method on MistralAIProvider that maps { type: 'image_url', image_url: { url } } -> { type: 'image_url', image_url: url } for every content part in every message. Messages with plain string content are left untouched, as are parts whose image_url is already a string.
Add four unit tests covering: object-to-string coercion, already-flat strings, plain string message content, and mixed text+image content.