Agentless build step post-feature possibility

Dear TC Support,

May it by really design, but is there any possibility to solve that after agent-detach, some build features (like XML post processing) will only run after re-attach (finish request) has been completed?

Agentless possibility is a really cool feature, but I feel it a bit bare currently and cannot process anything which can be provided by any of external service, only via service message logging.

Thank you