docs(turn-loop): document system inbox messages and link to approvals.md helper events

The messaging section listed the MCP tools for send/recv/ask/answer/ack_until
but didn't mention the system events agents receive from sender 'system' —
lifecycle events (spawned, rebuilt, killed, etc.) routed to the root agent and
Q&A events (question_asked, question_answered) delivered to any agent. Add a
brief paragraph that names the events and links to the canonical reference in
docs/approvals.md where the full payload shapes and routing logic live.
This commit is contained in:
iris 2026-07-05 02:24:42 +02:00
commit 2748ce2f4c

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@ -571,6 +571,16 @@ ttl_seconds?, to?)`, `answer(id, answer)`, `ack_until(up_to)`.
`ack_until(N)` to prevent re-pop. Acked rows never redeliver.
Transient pings (sentinel id 0) have nothing to ack and show no marker.
**System messages** (from sender `system`): lifecycle and Q&A events
delivered as regular inbox messages (same `recv` path; body is a JSON
object with an `event` discriminant field). The root/manager agent
receives lifecycle events (`spawned`, `rebuilt`, `killed`, `destroyed`,
`container_crash`, `needs_login`, `logged_in`, `config_ready`,
`needs_update`, `approval_resolved`). Any agent receives Q&A events
when it is the declared target (`question_asked`) or the asker
(`question_answered`). Full payload shapes and routing logic in
[`docs/approvals.md` § Helper events](../approvals.md#helper-events-to-the-submitting-agent).
**Inbox** (`inbox` group): `get_loose_ends(agent?)`,
`cancel_loose_end(kind, id)`, `remind(message, delay_seconds? |
at_unix_timestamp?)`, `request_next_turn()`.