Convert checklist item to card

I need this checklist item turned into its own card and put in the same list, with a link back to the original card so reviewers can trace history. Name the new card 'Finalize Q3 vendor onboarding checklist' and assign it to me and to Maria. Before you create it, check the original checklist item text for missing due dates or required attachments and add any obvious ones. Add a comment on the original card that points to the new card and says why it was split.

Before I split this checklist item into a card for the procurement lead, make it easy for them to act: extract the acceptance criteria to the top of the new card, surface any vendor contact info, put the expected due date prominently in the description, and flag any dependencies or approvals that would block it. Suggest one sentence that explains why this is a new card.

I split a checklist item into a card for procurement and assigned Maria, but I worry I missed a required attachment or who else needs to be notified. Procurement reviewer is Tom; finance may need to see this. Which two things should I verify now and the fastest way to do it so I avoid rework?

Every sprint I end up converting several checklist items into cards because they were underspecified. Where is the pattern breaking down — intake, checklist wording, or grooming — and what one habit should we change in our sprint planning so fewer items need splitting? Recommend a simple checklist or rule to apply before a task is created.