ZV-2026-0297 · 2026-08-22 · mcp.origineparis.com
mcp.origineparis.com: New required field lang on search_catalogue; requests without it will fail.
breaking
What changed
New required field lang on search_catalogue; requests without it will fail. Field sources was removed from search_catalogue output; consumers reading it will break. Field generated_at was removed from search_catalogue output; consumers reading it will break.
What to do
If your agents call mcp.origineparis.com, pin the new snapshot, patch the affected call sites, and let a green contract check confirm the fix. If you don't use the changed tools, nothing is required, but the rest of the ecosystem just learned about it at the same moment you did.
The redline
− lang New required field lang on search_catalogue; requests without it will fail. − sources Field sources was removed from search_catalogue output; consumers reading it will break. − generated_at Field generated_at was removed from search_catalogue output; consumers reading it will break. − Searches the Origine Paris catalogue of recycled 18ct gold jewellery set with IGI-certifie… + Searches the published catalogue of Origine Paris (recycled 18ct gold, IGI-certified lab-g… search_catalogue + collection Optional field collection was added to search_catalogue; may shift model behaviour. + cursor Optional field cursor was added to search_catalogue; may shift model behaviour. + gold_colour Optional field gold_colour was added to search_catalogue; may shift model behaviour. + jewellery_type Optional field jewellery_type was added to search_catalogue; may shift model behaviour. + limit Optional field limit was added to search_catalogue; may shift model behaviour. + max_price Optional field max_price was added to search_catalogue; may shift model behaviour. + min_price Optional field min_price was added to search_catalogue; may shift model behaviour. + freshness Field freshness was added to search_catalogue output. + lang Field lang was added to search_catalogue output. + provenance Field provenance was added to search_catalogue output. + tool Field tool was added to search_catalogue output. + get_product_detail Tool get_product_detail was added. − query Field query on search_catalogue is no longer required.