When trying to lookup a specific payment with bkpr, I've been using bkpr-listaccountevents and jq or grep to filter for a specific payment. That is not very pretty and starting to get slow because bkpr-listaccountevents is listing everything it has in its database.
It would be nice to lightning-cli -k bkpr-listaccountevents payment_id=<id> so that bkpr only fetches relevant entries from its database.