On the security of 0-conf: are double spends detected by the daemon before the daemon includes them in the txpool? So if I request "/get_transaction_pool" from my daemon over http, I can be reasonably confident that the results don't contain double spends?

<BusyBoredom[m]> "On the security of 0-conf: are..." <- Afaik, yes deamon will reject double spend

but you don't know that someone won't mine a double spend before the one you see in the transaction pool

Awesome, that's what I was hoping. I briefly looked through cryptonote_core to double check and it looks like you're right, transactions are checked for double spends before being added to the daemon pool :)

pigeons, that's OK, I just wanted to know that a trustworthy daemon won't knowingly include double spends in /get_transaction_pool results.

before being added to the daemon's tx pool*

This has detailed crypto usage stats- how many tx's per coin in case anyone is interested.

* usage stats for travala- how