check-agent-mail

name	check-agent-mail
description	Claim pending agent mail with `mailbox_recv` and immediately execute the requested workflow action.

Workflow protocol baseline: use the agent-deck-workflow skill.

Steps

1. Start the shared Receiver Contract by running mailbox_recv first for personal mail.
2. If no personal message is returned:
   • if no visible local work remains, finish the shared Receiver Contract's single idle wait path
   • if still no mail, report no agent mail and stop until a later nudge or explicit check
3. If a message is returned:
   • treat body as executable workflow input, not as a notification
   • parse the Action: header
   • if Action: group_message_available, run the group handler for Group-Address and As-Person; for group/roundtable-*, use roundtable Moderator Group Check
   • otherwise execute that workflow stage immediately
4. Only mailbox_ack the currently claimed inbound delivery, and only after the message's required workflow action is complete
5. If the message cannot be acted on yet, use mailbox_release, mailbox_defer, or mailbox_fail instead of silently dropping it

Rules

• Use the shared Receiver Contract for recv-first, binding recovery, bounded idle wait, and personal-delivery lifecycle limits
• Ask the user for the next step only when the mailbox body explicitly requires a user decision
• Read external files only when the mailbox body explicitly says they are needed
• The current session owns only the delivery lifecycle of the inbound message it claimed with mailbox_recv
• Do not mailbox_ack / mailbox_release / mailbox_defer / mailbox_fail outbound mail that this session sent, or a delivery claimed by another session
• The action skill decides the exact serialized completion point for mailbox_ack or the alternate lifecycle step
• Determine workflow behavior from this mailbox input plus the current action skill; you do not need to inspect another role's implementation details
• Treat mailbox_ack as durable persistence, not as losing the message forever
• If you need to recover the latest acknowledged workflow input after mailbox_ack, use mailbox_read on the latest acked delivery for this session
• If you need an older acknowledged delivery, use mailbox_list with state: acked, then mailbox_read by delivery id
• After mailbox_recv returns a workflow message, do not naturally end this turn until the message's required workflow action is complete
• Before ending, explicitly check whether this action still requires mailbox_send, mailbox_ack, mailbox_release, mailbox_defer, or mailbox_fail
• If compaction or interruption made the workflow obligation unclear, reread the current workflow input from the mailbox body or recover it with mailbox_read before deciding to stop