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persona: the ack is decided once, in PersonaInbox::result, from what is still unanswered

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act no longer acks. result acks through the highest answered seq of the
process, never past a delivery still told and unanswered (the retold batch or
a line written and not yet echoed), and only forward. Soul s1
retell-ack-passes-unanswered: a newer turn's ack passed a retold batch, so a
session ending first lost it and the retell's answer acked a lower seq.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Meta Vens 2026-11-01 19:13:42 +01:00
commit 0f19eecbe1
1 changed files with 22 additions and 12 deletions
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34
crates/mind-body/src/persona.rs
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@ -836,6 +836,7 @@ fn one_process(
start: first,
waiting: Vec::new(),
told_through: 0,
answered_through: 0,
written: None,
echoed: Vec::new(),
shown: Shown::default(),
@ -944,6 +945,10 @@ struct PersonaInbox<'a, C: ControlSource, S: ControlSource> {
waiting: Vec<ChatDelivery>,
/// The highest seq written to the child.
told_through: u64,
/// The highest seq an answered result carried in this process. A result acks only through
/// the lowest seq still told and unanswered, so this can lie above the mouth's ack until the
/// retold batch is answered; a process that ends first leaves the mouth's ack, the truth.
answered_through: u64,
written: Option<Written>,
/// Deliveries the CLI took in since the last result: the next result's batch.
echoed: Vec<ChatDelivery>,
@ -1004,7 +1009,8 @@ impl<C: ControlSource, S: ControlSource> SessionInbox for PersonaInbox<'_, C, S>
/// What waits is the untold front of the mouth's pending, in this conversation. If the oldest
/// unanswered delivery is another conversation's, the session yields at its next idle: an ack
/// through a newer seq would pass it. A held brake yields too, and is recorded.
/// through a newer seq would pass it. A held brake yields too, and is recorded: this read
/// stops nothing, the hold's stop is `mind-control`'s.
fn poll(&mut self) -> Result<Polled> {
if let Some(reason) = self.held() {
self.progress.failure.get_or_insert(Failure::Held(reason));
@ -1065,14 +1071,23 @@ impl<C: ControlSource, S: ControlSource> SessionInbox for PersonaInbox<'_, C, S>
};
match step {
Step::Answered(started) => {
// The one ack rule: through the highest answered seq, never past a delivery still
// told and unanswered (a retold batch, or a line written and not yet echoed).
self.answered_through = self.answered_through.max(batch.iter().map(|delivery| delivery.seq).max().unwrap_or(0));
let unanswered = self.retell.iter().flat_map(|(retold, _)| retold).chain(self.written.iter().flat_map(|written| &written.batch)).map(|delivery| delivery.seq).min();
let through = unanswered.map_or(self.answered_through, |lowest| self.answered_through.min(lowest.saturating_sub(1)));
if through > self.progress.acked {
if self.organs.chat.ack(through).is_err() {
self.progress.failure.get_or_insert(Failure::Ack);
return Ok((false, true));
}
self.progress.acked = through;
}
self.refusals = 0;
if started.is_some() {
self.progress.self_run = started;
}
self.progress.answered += 1;
if let Some(through) = batch.iter().map(|delivery| delivery.seq).max() {
self.progress.acked = self.progress.acked.max(through);
}
Ok((true, false))
}
Step::Refused(why) => {
@ -1105,9 +1120,9 @@ impl<C: ControlSource, S: ControlSource> PersonaInbox<'_, C, S> {
}
}
/// What one result does in the world: decode, say, remember, settle, start a Self run, trace, and
/// only then ack (the caller moves the position). `batch` is what the result answers; `shown`
/// is what the lines showed her.
/// What one result does in the world: decode, say, remember, settle, start a Self run, and trace.
/// It acks nothing: the caller acks after it, once, from what is still unanswered. `batch` is what
/// the result answers; `shown` is what the lines showed her.
fn act<C: ControlSource, S: ControlSource>(inbox: &PersonaInbox<'_, C, S>, batch: &[ChatDelivery], shown: &Shown, turn: u32, text: &str) -> Result<Step> {
let (organs, config, run) = (inbox.organs, inbox.config, inbox.run);
let instance = organs.mind.instance().clone();
@ -1172,11 +1187,6 @@ fn act<C: ControlSource, S: ControlSource>(inbox: &PersonaInbox<'_, C, S>, batch
}
}
organs.trace.record(&record(outputs, "answered".into()))?;
if let Some(through) = batch.iter().map(|delivery| delivery.seq).max()
&& organs.chat.ack(through).is_err()
{
return Ok(Step::Failed(Failure::Ack));
}
Ok(Step::Answered(started))
}