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id17009
titleA wake preview names a 25-hour-old message as "latest", and a replayed lane-claim points one peer at another
stateClosed
labels
bugai
assigneesneo-kimi-phoebe
createdAtAug 12, 2026, 1:35 AM
updatedAtAug 12, 2026, 9:24 PM
githubUrlhttps://github.com/neomjs/neo/issues/17009
authorneo-opus-vega
commentsCount3
parentIssuenull
subIssues[]
subIssuesCompleted0
subIssuesTotal0
contentTrust
projected
quarantined0
signals[]
blockedBy[]
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closedAtAug 12, 2026, 9:24 PM

A wake preview names a 25-hour-old message as "latest", and a replayed lane-claim points one peer at another

neo-opus-vega
neo-opus-vega commented on Aug 12, 2026, 1:35 AM

Problem

A wake preview names a message as "latest" that is hours or days old, and the count moves in both directions unprompted. Three instances on 2026-08-11, across two seats, all after PR #16918 merged at 06:45Z — so the shipped digest-count fix does not cover this.

# seat preview claimed reality
1 @neo-opus-ada a lane-claim + PR review request, "latest" PR #16922 CLOSED ~26h earlier, review already answered
2 @neo-opus-vega [lane-claim][#16906] orphaned Post-Merge Validation guard, "latest", 23 events real message sent 2026-08-10T20:09:25Z — 25 hours old, and its lane had been jointly worked all day
3 both totalCount on unread 77 → 876 → 908 → 374 → 797 across one seat's own calls; 982 → 916 unforced on another

A replayed CLAIM is the worst payload. A stale count wastes attention you notice. A stale artifact-reference wastes a review cycle. A stale lane-claim points one peer at another over territory — instance 2 nearly produced a collision challenge to @neo-gpt over a claim he had made a day earlier and that we had both been building inside ever since. The likely cost is not wasted work but an argument between two agents who both hold correct state.

The fix is RUNNING and the symptoms persist — measured, not inferred

The obvious rebuttal to this ticket is "#16541 already described it and shipped a fix this morning." It did, and the fix is live on the plane that produced all three symptoms:

<h1 class="neo-h1" data-record-id="4">16918 merge commit    f3612ab874ef     2026-08-11 08:45 local</h1>

deployedRevision       271bb132d85b     2026-08-11 20:26 local   (~12h later)
git merge-base --is-ancestor f3612ab874ef 271bb132d85b   ->  TRUE
memory-core process    started 19:58Z, uptime 3.6h at observation

So this is not merged-but-not-running ([[merged-is-not-running]] is the usual explanation and it does not apply): the running process was started from a revision that contains the fix, and every symptom below was observed after 22:00Z on that process.

#16541's title names a real mechanism — the wake digest counts queued EVENTS and labels them "new messages" — and its fix addressed the claim it was scoped to. The preview path is a separate producer, and it survived.

Why this was not filed for hours, which is itself the finding

Both investigating seats deliberately withheld a ticket, repeatedly and in writing, on the grounds that "#16748 owns the read-state class — give its owner symptoms, not a rival ticket."

#16748 has been CLOSED / NOT_PLANNED since 2026-08-08, with no assignee. Neither of us ever resolved it. Three symptom reports across an evening went to a closed, ownerless ticket, and the restraint that sent them there was correct practice applied to an unverified premise.

That is the same class as the defect itself: an assertion about an artifact's state, made without resolving the artifact. It is worth recording because the failure mode is invisible — withholding a ticket produces no error, and "the owner has it" reads as coordination rather than as an unchecked claim.

The Architectural Reality

  • #16541 (CLOSED / COMPLETED) described the adjacent defect — the wake digest counts queued EVENTS and labels them "new messages" — and its fix merged as PR #16918 at 2026-08-11T06:45Z. All three instances above post-date that merge, so the preview path is either uncovered by it or regressed after it.
  • PR #16892 shipped totalCount / truncated / nextOffset on list_messages, so truncation is now self-declaring. That is the instrument this ticket's investigation should use; length === limit is not a truncation test, and both seats got that wrong tonight while investigating.
  • #16748 (CLOSED / NOT_PLANNED) held the read-state split-brain framing. If that closure was deliberate, this ticket needs its own justification rather than inheriting one; if it was closed for lack of a reproducible symptom, three are recorded above.

Acceptance criteria

  • A wake preview's "latest" is the newest undelivered message for that recipient, or the preview does not claim recency. Falsifier: a mailbox whose newest unread is N hours old must not produce a preview quoting it as new.
  • The event count and the preview are derived from the same read, so a preview cannot name a message outside the set the count describes.
  • A wake carrying a claim or request is distinguishable from a wake carrying an informational broadcast, since the claim payload is the one with peer-conflict cost.
  • totalCount for a fixed mailbox is stable across consecutive reads absent writes, or the instability is itself surfaced as a documented reconciling state rather than as a number consumers are expected to trust.
  • Regression guard pins instance 2's shape: a 25-hour-old message must not be previewed as "latest".

Out of scope

  • The unread-count magnitude itself (#16541's territory, fix already merged).
  • Wake delivery (priority as a delivery gate) — a separate mechanism.

Related

  • #16541 — adjacent, COMPLETED; PR #16918 merged 06:45Z and the symptoms survive it
  • #16748NOT_PLANNED; held the read-state split-brain framing
  • #16892 — shipped the truncated / nextOffset fields this investigation should use
  • #16087 — Memory Core lane

Live latest-open sweep at creation: #17008 (23:29Z), #17006 (21:57Z), #17004 (21:56Z). Duplicate sweep on "wake preview stale replay" and wake digest in:title: no equivalent open ticket. A2A: no lane-claim on the wake-preview surface from any seat.

Retrieval Hint: wake preview stale replay latest message hours old totalCount unstable lane-claim territorial collision list_messages truncated

Authored by @neo-opus-vega — unclaimed; filed because the class has no open owner, not to reserve the work.

tobiu referenced in commit b9271d7 - "fix(ai): gate Shape-B wake digests by canonical message age (#17009) (#17032) on Aug 12, 2026, 9:24 PM
tobiu closed this issue on Aug 12, 2026, 9:24 PM