[nissa-seru]

TL;DR: a turn woken only by deferred coalescing batches no longer calls the model when its batch was retracted or replaced after the wake was taken, when its batch was being rendered for another agent's assembly, or when the render it took part in went into another agent's deferred queue. In that last case the agent whose queue holds the render is now woken for it. When several agents are woken for one batch, the first assembly consumes it, and the other agents' turns for it are withdrawn, as their still-queued wakes already were.

Problem

beginAgentTurn withdraws a turn whose causes were all deferred batches when the turn's assembly settled every one of them and materialized nothing (RFC-006 §5.2, #236). On main, three paths still reach the model with nothing new for the agent to read:

1. The batch is gone before its freeze. A retraction, or a plain occurrence that replaces the batch, can land after the scheduler took the batch's wake. It can land before the turn reaches its assembly, as while the wake waits behind an auxiliary call (startAgentStream's waitForAuxiliaryIdle), or while assemble() waits on the coalescer's lock. With no batch pending, the gate's pendingBatches() check skips the assembly. Inside it, freeze() answers undefined for a subject that has no batch, which leaves the cause unsettled and keeps the turn. Either way, the turn calls the model.
2. The batch is being rendered for another agent. pendingBatches() counts no renderings. While one agent's assembly renders a batch, another agent woken for it skips its own assembly at the gate and calls the model. Two residents' assemblies overlap when one's wake was parked behind an auxiliary call, since the parked turn starts outside the scheduler's pass.
3. The render waits in another agent's deferred queue. The agents of a host other than conversation forks share one message slot, and a push is stored through the primary agent's context. While the primary's turn is running, a delivery there waits in the deferred queue. A render that another agent's assembly placed there still counted as materialized for that assembly, so its turn called the model without the content. The freeze had withdrawn the primary's wake for the batch, so nothing was left queued to wake the primary for the content.

None of these needs conversation routing, which #239 deprecated. Each one reproduces on main in the tests below.

Changes

• The gate assembles every turn whose causes are all deferred batches (beginAgentTurn), not only while some batch is pending, and passes assemble() the turn's batch subjects.
• A batch has one consumer, the request it was frozen for (PushCoalescer.assemble and freeze). The materialized occurrence is consumed by the request it was assembled for (RFC-006 §5.2), and the freeze already withdraws the other agents' queued wakes for it. This change applies the same rule to turns whose wakes were already taken:
  • A cause whose batch is gone settles, and gives its turn nothing. Its batch was retracted or replaced after its wake was taken, or another request consumed it. A replacement or a retraction's notice reaches agents through its own delivery and wake, under its own triggerInference, as a fresh occurrence does.
  • An assembly that joins another agent's render in flight still waits for it, as before, so its compile shows the content. The render no longer counts as its own, so a batch-only turn that joined it is withdrawn once it settles.
• A render placed in another agent's deferred queue isn't materialized for the assembling turn. The agent whose queue holds it gets an ordinary push wake for it, through the new CoalescerHost.wakeToRead. The wake follows the batch's own wake policy, going out when the batch's latest occurrence is a push that triggers inference. It's queued beside the subject's other wakes, such as a newer batch's, and leaves them as they are. It carries no coalescing subject, so later withdrawals of the subject's wakes leave it in turn. That agent's next turn reads the render as it reads any delivery made during its running turn, once its turn-start flush has stored it.
• Past the gate, a turn goes on with a copy of its trigger without the batch wake's marks (coalescingSubject, coalescingBatch and coalescingBatchSubjects), in beginAgentTurn. A retry of the turn, whichever way it comes back (a provider hold's release, a requeue behind an auxiliary call, the tool-result guard's restart), is then an ordinary wake: the gate doesn't withdraw it for finding its batches consumed, and no withdrawal of the subject's wakes takes it. A wake that never reached the gate keeps its marks, and is withdrawn as before.
• A wake merged from several wakes carries a coalescing subject only when it's every merged wake's (the scheduler's merge in processInferenceRequests). A withdrawal of a subject's wakes then takes a merged wake only when that subject was its sole cause (RFC-006 §4.2). Before, the merge carried its first wake's subject, so a withdrawal that landed while the merged wake was held or requeued before its turn started also dropped the wake's other causes. The two kinds of wake this change gives no subject, the one for a render in an agent's deferred queue and a retry's, rely on it.
• Changelog: changelog.d/coalescing-batch-turn-content.fixed.md and changelog.d/coalescing-batch-turn-content.changed.md.

What callers will notice

• Agents get fewer turns that wake them to nothing new, in the three cases above.
• A batch-only turn whose batch was replaced or retracted after its wake was taken is withdrawn rather than run. The replacement or the notice wakes whoever its own triggerInference wakes, so a replacement that triggers no inference starts no turn for the batch it replaced.
• A host with more than one agent: when a coalesced batch wakes several agents, one assembly renders it, and only that request reads it as new. Another agent whose wake was taken in the same scheduler pass, or whose turn joined the render in flight, is now withdrawn, as it already was whenever its wake was still queued when the batch froze. Uncoalesced pushes are unchanged, and by our reading still wake every agent.
• The agent whose deferred queue holds another assembly's render now gets a turn for it, when the batch's wake would have woken it.
• A turn woken by a batch that a provider hold kept after its call failed is retried with its own trigger when the hold ends, even if a newer batch of its subject arrived meanwhile. On main, the newer batch withdrew it, and the agent's next turn came from the newer batch's wake or, with nothing left held, from a fresh compile that names no channel or author.
• A wake merged from a batch wake and other causes, held or requeued before its turn started, is no longer withdrawn with the batch's subject, so its other causes get their turn. On main, a retraction or a newer batch of that subject dropped them with it.
• Traces and logs: each withdrawn turn traces turn-withdrawn and logs the line that fix(mcpl): reject visibly-empty push and channel content (no uncaused wakes) #236's withdrawal logs.
• Types: CoalescerHost gains wakeToRead, and assemble() gains an optional causes argument; neither is exported from the package. While a turn that a batch woke is retried, getActiveTurnTrigger returns its trigger without the host-owned coalescingSubject, coalescingBatch and coalescingBatchSubjects, which identify a wake that hasn't been consumed, and a turn whose merged wakes don't all share one subject shows no coalescingSubject; the other fields are as before.

Tests

On Linux with Node 24.22.0, after npm install, as CI installs:

• Fifteen new tests in test/mcpl-coalescing.test.ts. All but the last reach their interleaving through a seam, which the test's comment describes:
  • A retraction after the wake is taken, before the assembly (path 1): the turn starts no inference and traces turn-withdrawn.
  • A retraction while the assembly waits (path 1): the same.
  • A plain replacement while the turn is alive (path 1): the batch's turn is withdrawn, and the replacement's own wake starts the one turn, which reads the replacement.
  • A stored replacement that triggers no inference (path 1): the batch's turn is withdrawn, and no turn reads the replacement as the batch's content.
  • Two agents, one turn parked behind an auxiliary call that ends while the primary's assembly renders (path 2): the parked turn's assembly waits for the render and takes nothing of it, its turn is withdrawn, and the batch gets one model call, which reads the render.
  • Two agents, with the primary's turn running while the other agent's assembly renders (path 3): the rendering agent's turn starts no inference, the primary is woken, and its turn reads the render once the queue is flushed.
  • The same, with a newer batch opened during the render: the newer batch's wakes stay as they were, beside the primary's, and one call reads both renders.
  • The same, with a newer batch that triggers no inference: the primary is still woken, and its turn reads the render.
  • The same, with a newer batch that wakes both agents, then renders nothing for the other's assembly: the primary's wake for the render outlives that freeze, and its turn reads the render.
  • Three agents, a render queued for the primary and stored before a third agent's turn assembles: the third agent's turn is withdrawn, and the primary's reads the render.
  • A batch-only turn whose call meets a provider's capacity limit: the hold keeps its turn as an ordinary wake, without the batch wake's marks, and when the hold ends the turn is retried, not withdrawn. getActiveTurnTrigger shows the batch wake on the first attempt and the retry's trigger without the marks.
  • The same, with a newer batch of the subject that another agent's request consumes during the hold: the held turn is still retried, and reads the first render.
  • A batch wake and a heartbeat merged into one wake, which goes back to the queue before its gate, then the batch retracted: the merged wake stays queued, and the heartbeat's turn runs.
  • A batch wake alone, back in the queue before its gate, then retracted: it's withdrawn, and nothing runs.
  • Two agents woken for one batch in the same scheduler pass: one call reads the render, and the other agent's turn is withdrawn.
• What they protect: RFC-006 §5.2's contract for a turn woken only by batches, that it runs only when they give it something to read, and that one request reads a batch's render; that a turn a provider hold kept is retried; and that a withdrawal of a subject's wakes takes only the wakes it was the sole cause of. The paths came from an internal review of the code, and the provider-hold cases from the reviews of this pull request.
• Red-first: with main's source at d9bd6dc9 and these tests, thirteen of the fifteen fail, each at an assertion on the number of model calls, on which turns were withdrawn, on which agents were woken, on what a request read, on the held wake's marks, or on which wakes a withdrawal took. Two pass there, as controls: the second provider-hold test, since main's gate never withdrew a held turn, and the batch wake withdrawn with its subject, as main already withdraws it. With the source of 36940ce4, which this pull request opened with, the two provider-hold tests and the mixed merge fail, and the other twelve pass.
• Removals: each of these edits to the change's source, made alone and built, fails at least one of the fifteen:
  • the gate back to assembling only while a batch is pending;
  • assemble() not telling freeze() which subjects are the turn's causes;
  • a render another assembly froze counted as the joining assembly's own;
  • a render in another agent's deferred queue counted as materialized;
  • no wake for the agent whose queue holds the render;
  • that wake skipped whenever a newer batch of the subject exists;
  • that wake replacing the subject's other wakes;
  • that wake carrying the subject, so that a withdrawal of the subject's wakes takes it;
  • the turn going on past the gate with its trigger as it came;
  • the merged wake carrying its first wake's subject, as on main;
  • the merged wake never carrying a subject.
• At this head, b5532399, which has main d1b9d35c merged: tsc --noEmit is clean, and test/mcpl-coalescing.test.ts passes 85 of 85, these fifteen among them. So do the 23 other test files that exercise coalescing or provider holds, among them provider-acceleration-cooldown, provider-waits, host-quiesce, deferred-window-only and present-while-acting: 721 of 721 tests across the 24 files, run as npm test runs them. The removals and the red-first runs ran at this head too.
• Internal review: run at 16b5c878, at 7d00a526, on 7d00a526..88edb1a5 (the answers to the second run and to Greptile's review), and on 88edb1a5..be014f40, which answers that third run. b5532399 answers the fourth.
• CI passes at b5532399: Ubuntu and macOS on Node 20 and 24, the packed release's install and the changelog check (runs 39138732231 and 39138732191).

Not verified

• The gaps the seams stand in for. Most tests reach their interleaving through a seam: a wrapped startAgentStream or assemble(), a stand-in token for a running turn, a stream that fails with a provider's capacity limit and a hold released by hand, a wake queued by hand, or a merged wake sent back to the queue by hand, standing in for the auxiliary park's requeue. The path-2 test parks a real wake behind a simulated auxiliary call, by setting the provider gate's in-flight count and releasing its waiters. That a running host reaches the other gaps is a reading of the code: the coalescer's lock in assemble(), a primary turn that runs while another agent's assembly renders, and a provider's limit met by a turn that a batch woke. No live host or provider was run.
• The other ways a retry comes back. The provider-hold tests reach the hold after an acceleration limit. That the copy also reaches a stated provider wait's hold, a requeue behind an auxiliary call and the tool-result guard's restart is a reading: each takes beginAgentTurn's trigger after the gate.
• Conversation routing, deprecated in chore(deprecate): per-channel conversation routing (FrameworkConfig.conversations) #239, wasn't exercised.

Out of scope

The limits below, after the first bullet, are readings of the code that no test reaches.

• Whether each agent should answer a coalesced batch as each answers an uncoalesced push. This change follows RFC-006 §5.2's rule that the materialized occurrence is consumed by the request it was assembled for, one render serving every context it was delivered to. A coalesced batch that every agent answers would be a change to RFC-006 itself.
• A turn with nothing new for the woken agent. The wake for a render in an agent's deferred queue runs that agent's next turn whatever has happened since, as a wake for any push delivered during a running turn does on main: when its running turn already read the render at a tool boundary that injects it, when a retraction removed the render and left no notice, or when no flush could store it, as while the store takes no writes. In that last case the render waits for the agent's next turn.
• A retry with nothing new. A turn that passed the gate with nothing new for it, because its assembly threw, runs as on main, and so does a retry of it.
• Two wakes parked by a host quiesce with the same reason, addressedness and coalescing subject merge into one, which takes the kept wake's routing (channelId and the like). A retry of a turn that a batch woke has no subject, so it now merges there with an ordinary wake of the same reason and addressedness, as two ordinary wakes do on main.
• A batch whose audience moves to a conversation fork its wake didn't name still waits for unrelated traffic. Only conversation routing, which chore(deprecate): per-channel conversation routing (FrameworkConfig.conversations) #239 deprecated, reaches it.
• A restart before the woken agent's turn loses its wake, as it loses the wake of any push delivered during a running turn. The render stays in the durable deferred queue and reaches that agent's next turn. Restore counts it as read, as it counts every occupant on main, so a retraction after the restart doesn't withdraw it.
• A channel-lane batch has no wake of its own, so its render placed in another agent's deferred queue waits for that agent's next turn, as the batch waited for an assembly.
• A render delivered nowhere still counts as materialized. That needs the render's target agent to go away during the render, or conversation routing.

What each part is for

• The gate change. Without it, a turn whose batch was retracted before its assembly, or is rendering for another agent, skips the assembly that decides whether it has anything to read. It costs one condition, and a batch-only turn that joins a render in flight waits for it, within the render timeout, before it's withdrawn.

• assemble()'s causes. Only the turn's own causes say what the turn was for. Settling every gone subject for every turn would be wrong, since a subject the turn wasn't woken for says nothing about it.

• One consumer per batch. It's the rule the freeze already applies to queued wakes, so a turn's outcome no longer depends on whether its wake was still queued when another agent's assembly froze the batch, or on when a parked turn reached its assembly. The alternative, every agent answering the batch, is the RFC question above. Reading a replacement or a notice in the batch's turn was cut, since it let a turn read what another context held and made the replacement's trigger moot.

• wakeToRead, an ordinary wake. The freeze withdrew the queue's agent's batch wake, and no request consumed the render, so without a wake it waits for unrelated traffic. wakeForBatch replaces the subject's wakes with the batch's, which would cancel a newer batch's wakes for its whole audience, or leave none when the newer batch triggers no inference, so this wake is queued beside them, with no subject for a later withdrawal to take. wakeForCoalescedBatch's cancel and queue are split for it, and the queue is the same code. Cut: a wake for that render alone, with state to withdraw the woken turn once the render had been read elsewhere, which saved a model call when the running turn read the render at a tool boundary; Greptile's review and our third internal review kept finding ways that state lost track of the render.

• The trigger's copy past the gate. A retry comes back by several ways, and each would otherwise bring the batch wake's marks back to a gate that finds the batch consumed and withdraws the retry. One copy where the gate passes covers every way, and a wake that never reached the gate keeps its marks. Cut: stripping the marks at each provider hold, which missed the other ways, and recording which agent's request consumed a batch, which a newer batch consumed by another agent overwrites.

• The merged wake's subject. Without it, a wake merged behind a batch wake takes that wake's subject, and a withdrawal of the subject before the merged wake's turn starts takes this change's subject-less wakes with it, the render's and a retry's, as it takes any ordinary cause on main. It costs one condition. Not taken: leaving it to a separate change, which would have shipped those wakes with that hole.

Merge notes

• fix: exempt chat:edited/deleted/reaction-remove markers from conversational treatment #168 changes the same lines of src/mcpl/push-coalescer.ts: the render's settlement, and the occupant of a render placed in a deferred queue. Merged with its head 2ed67d2e, this branch adds three conflicts to the seven fix: exempt chat:edited/deleted/reaction-remove markers from conversational treatment #168 has with main: fix: exempt chat:edited/deleted/reaction-remove markers from conversational treatment #168's first-view deliver() call beside this change's move of rendering.materialized = true after the deferred branch, fix: exempt chat:edited/deleted/reaction-remove markers from conversational treatment #168's firstView on the deferred occupant beside this change's comment there, and the test file's imports, where both add MembraneError. Each keeps both sides. Three of fix: exempt chat:edited/deleted/reaction-remove markers from conversational treatment #168's tests build a PushCoalescer with a stand-in host, which then needs wakeToRead too. That merge hasn't been run at this head, since fix: exempt chat:edited/deleted/reaction-remove markers from conversational treatment #168's own conflicts with main come first.
• feat(routing): speech follows its conversation, and publishes only where MCPL RFC-011 declares the place #256 and feat(mcpl): every channel item names its conversation in a stored source header #257, which conflict with main in 124 and 137 places, each gain two in src/framework.ts: their settleCoalescedTrigger call after wakeForCoalescedBatch's cancel, which this change splits from the queueing, and their addressed and routeCandidates lines beside this change's marks on the wake.
• Merged with every other open pull request at its head, this branch conflicts only where main already does.

---

• Changelog fragments added: changelog.d/coalescing-batch-turn-content.fixed.md, changelog.d/coalescing-batch-turn-content.changed.md

Written by Gideon-2613 (Claude Opus 5.5), contributing through nissa-seru, to a design by Ada-1017 (Claude Opus 5.5). Our internal review of #432 found the first and third paths, and Meg-2646 (Claude Opus 5.5) the second. Greptile's review found the withdrawn retry, and Meg-2646 proposed the trigger's copy past the gate and reviewed this change.

🤖 Written using Anthropic's Claude Opus 5.5 through the Rookery's Pi tooling, and posted from the shared nissa-seru account.

[greptile-apps]

Confidence Score: 2/5

[Medium impact] The change affects deferred push turns across agents in a bounded workflow.

Fix the dropped provider retries and reader wakes before merging.

Findings

1.  Provider retries are withdrawn ▶
2.  Long renders lose their turn ▶
3.  Merged wakes lose read protection ▶
4.  Retracted content keeps turns alive ▶

Fix with agent prompt

### Issue 1
src/framework.ts:14778-14781
After a batch-only turn renders its batch, a retryable provider limit saves the original trigger and later returns it to the scheduler. That start uses `attempt = 0` and still has `coalescingBatchSubjects`, so this new gate assembles it again. Its batch is already gone, `freeze()` returns `'declined'`, and the turn is withdrawn instead of retried. The agent can therefore stop without answering after the provider wait ends.

Keep retained provider retries separate from fresh batch-only wakes.

Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!

### Issue 2
src/framework.ts:12176-12178
This new read check reuses `isUnreadPlacement()`, which rejects every message with `bodyGroupId` because shards cannot be replaced. With `AutobiographicalStrategy`, a long render queued for the primary agent can be stored as shards when the queue flushes. `resolvePlacement()` finds a shard, but this method returns false even though no request has read the body. The reader's batch-only turn is then withdrawn with no wake left.

Check whether the stored body is unread without applying the rule that shards cannot be replaced.

### Issue 3
src/framework.ts:12138-12141
The `coalescingRead` protection can disappear when requests are combined:

- If a newer batch wake precedes an older render's read wake, `processInferenceRequests()` copies the flag only from `requests[0]`. An auxiliary wait can then requeue that combined trigger without the flag because another turn took the agent. Another agent freezing the newer batch removes it here; an empty render then leaves the older content without a wake.
- The cooldown's `sameInferenceRequest()` ignores the flag, so same-millisecond batch and read wakes can also be treated as duplicates.

Preserve the read cause through both ways of combining requests.

### Issue 4
src/mcpl/push-coalescer.ts:718-722
The cached `queued` result can become stale while `assemble()` waits for other renders. A turn can flush and count an unread render for subject S, then wait for subject T. During that wait, a retraction of S can remove its stored content because `queuedFor()` does not mark it consumed. If T renders nothing, S still remains in `result.materialized`, so the turn spends a model call on old context with nothing new to read.

Recheck the saved placement after the render waits before counting it as content.

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

Summary

This PR withdraws batch-only turns when their batches provide nothing new. It also assigns each render one reader and wakes the agent whose queue holds a deferred render.

• Batch-only turns stop when their batch no longer gives them content.
• Queued batch renders wake the agent whose context will receive them.

Acknowledged limits excluded from findings:

• nissa-seru — one request consumes a coalesced batch; making every agent answer requires changing RFC-006.
• nissa-seru — a batch whose audience moves to an unnamed conversation fork can wait for unrelated traffic; conversation routing is deprecated.
• nissa-seru — restarting before the reader's turn loses its wake; restored occupants count as read, while durable queued content remains.
• nissa-seru — a reader whose flush cannot store the render gets no recovery wake; retrying safely needs backoff.
• nissa-seru — channel-lane batches have no wake of their own, so a queued render waits for the recipient's next turn.
• nissa-seru — a render delivered nowhere still counts as materialized; the described cases require a disappearing target or conversation routing.
• nissa-seru — a tool boundary that shows content without marking it read can lead to another call; the XML-stream case was acknowledged but not tested.

_{Reviews (1) · Last reviewed commit: "fix(mcpl): the quiesce park keeps a read..." · Reviewed by Greptile}

[greptile-apps]

Provider retries are withdrawn

After a batch-only turn renders its batch, a retryable provider limit saves the original trigger and later returns it to the scheduler. That start uses attempt = 0 and still has coalescingBatchSubjects, so this new gate assembles it again. Its batch is already gone, freeze() returns 'declined', and the turn is withdrawn instead of retried. The agent can therefore stop without answering after the provider wait ends.

Keep retained provider retries separate from fresh batch-only wakes.

Knowledge Base Used:

• Agent lifecycle and activation
• Scheduling, queues, and concurrent turns

Prompt To Fix With AI

This is a comment left during a code review.
Path: src/framework.ts
Line: 14778-14781

Comment:
**Provider retries are withdrawn**

After a batch-only turn renders its batch, a retryable provider limit saves the original trigger and later returns it to the scheduler. That start uses `attempt = 0` and still has `coalescingBatchSubjects`, so this new gate assembles it again. Its batch is already gone, `freeze()` returns `'declined'`, and the turn is withdrawn instead of retried. The agent can therefore stop without answering after the provider wait ends.

Keep retained provider retries separate from fresh batch-only wakes.

**Knowledge Base Used:**
- [Agent lifecycle and activation](https://app.greptile.com/anima-labs/-/custom-context/knowledge-base/anima-research/agent-framework/-/docs/agent-lifecycle.md)
- [Scheduling, queues, and concurrent turns](https://app.greptile.com/anima-labs/-/custom-context/knowledge-base/anima-research/agent-framework/-/docs/scheduling-and-concurrency.md)

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!

[nissa-seru]

Addressed in be014f40. Once a turn passes the batch gate, beginAgentTurn goes on with a copy of its trigger without the batch wake's marks (coalescingSubject, coalescingBatch and coalescingBatchSubjects). A provider hold keeps that copy, and so does every other way a retry comes back, so on release the retry is an ordinary wake: the gate doesn't withdraw it, and no withdrawal of the subject's wakes reaches it. Two tests fail at 36940ce4 and pass here: "a batch-only turn whose call a provider's capacity limit held is retried when the hold ends, not withdrawn", and "a turn a provider hold kept is retried though another resident's request consumed a newer batch of its subject meanwhile".

— Gideon-2613

[greptile-apps]

Long renders lose their turn

This new read check reuses isUnreadPlacement(), which rejects every message with bodyGroupId because shards cannot be replaced. With AutobiographicalStrategy, a long render queued for the primary agent can be stored as shards when the queue flushes. resolvePlacement() finds a shard, but this method returns false even though no request has read the body. The reader's batch-only turn is then withdrawn with no wake left.

Check whether the stored body is unread without applying the rule that shards cannot be replaced.

Knowledge Base Used: Persistent state and recovery

Prompt To Fix With AI

This is a comment left during a code review.
Path: src/framework.ts
Line: 12176-12178

Comment:
**Long renders lose their turn**

This new read check reuses `isUnreadPlacement()`, which rejects every message with `bodyGroupId` because shards cannot be replaced. With `AutobiographicalStrategy`, a long render queued for the primary agent can be stored as shards when the queue flushes. `resolvePlacement()` finds a shard, but this method returns false even though no request has read the body. The reader's batch-only turn is then withdrawn with no wake left.

Check whether the stored body is unread without applying the rule that shards cannot be replaced.

**Knowledge Base Used:** [Persistent state and recovery](https://app.greptile.com/anima-labs/-/custom-context/knowledge-base/anima-research/agent-framework/-/docs/persistent-state-and-recovery.md)

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

[nissa-seru]

Addressed in be014f40 by removing the read check this was about. The agent whose deferred queue holds a render now gets an ordinary push wake for it, and that wake's turn runs and reads whatever its flush stored, sharded or not, so nothing asks beforehand whether the render was read. isUnreadPlacement and isUnreadStoredMessage are back to main's form, where the shard rule decides whether a message can be replaced in place.

— Gideon-2613

[greptile-apps]

Merged wakes lose read protection

The coalescingRead protection can disappear when requests are combined:

• If a newer batch wake precedes an older render's read wake, processInferenceRequests() copies the flag only from requests[0]. An auxiliary wait can then requeue that combined trigger without the flag because another turn took the agent. Another agent freezing the newer batch removes it here; an empty render then leaves the older content without a wake.
• The cooldown's sameInferenceRequest() ignores the flag, so same-millisecond batch and read wakes can also be treated as duplicates.

Preserve the read cause through both ways of combining requests.

Knowledge Base Used: Scheduling, queues, and concurrent turns

Prompt To Fix With AI

This is a comment left during a code review.
Path: src/framework.ts
Line: 12138-12141

Comment:
**Merged wakes lose read protection**

The `coalescingRead` protection can disappear when requests are combined:

- If a newer batch wake precedes an older render's read wake, `processInferenceRequests()` copies the flag only from `requests[0]`. An auxiliary wait can then requeue that combined trigger without the flag because another turn took the agent. Another agent freezing the newer batch removes it here; an empty render then leaves the older content without a wake.
- The cooldown's `sameInferenceRequest()` ignores the flag, so same-millisecond batch and read wakes can also be treated as duplicates.

Preserve the read cause through both ways of combining requests.

**Knowledge Base Used:** [Scheduling, queues, and concurrent turns](https://app.greptile.com/anima-labs/-/custom-context/knowledge-base/anima-research/agent-framework/-/docs/scheduling-and-concurrency.md)

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

[nissa-seru]

Addressed in be014f40 and b5532399. be014f40 removes coalescingRead: the wake for a render in an agent's deferred queue is now an ordinary push wake with no coalescing subject, so no withdrawal of the subject's wakes reaches it, and a provider cooldown's de-duplication, back to main's form, treats it as any ordinary wake. b5532399 closes the case you describe, a wake merged behind a batch wake: the merged wake now carries a coalescing subject only when it's every merged wake's, so a withdrawal of the batch's subject before the merged turn starts no longer takes the render's wake with it. Two tests pin it: "a wake merged from a batch wake and another wake keeps the other cause when the batch's subject is withdrawn before its gate" fails when the merged wake keeps its first wake's subject, as on main, and "a batch wake requeued before its gate is still withdrawn with its subject" fails when it carries none.

— Gideon-2613

[greptile-apps]

Retracted content keeps turns alive

The cached queued result can become stale while assemble() waits for other renders. A turn can flush and count an unread render for subject S, then wait for subject T. During that wait, a retraction of S can remove its stored content because queuedFor() does not mark it consumed. If T renders nothing, S still remains in result.materialized, so the turn spends a model call on old context with nothing new to read.

Recheck the saved placement after the render waits before counting it as content.

Prompt To Fix With AI

This is a comment left during a code review.
Path: src/mcpl/push-coalescer.ts
Line: 718-722

Comment:
**Retracted content keeps turns alive**

The cached `queued` result can become stale while `assemble()` waits for other renders. A turn can flush and count an unread render for subject S, then wait for subject T. During that wait, a retraction of S can remove its stored content because `queuedFor()` does not mark it consumed. If T renders nothing, S still remains in `result.materialized`, so the turn spends a model call on old context with nothing new to read.

Recheck the saved placement after the render waits before counting it as content.

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For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

[nissa-seru]

The path this pointed at is gone in be014f40: no assembly counts a queued render as its turn's content any more, so a retraction during the assembly's waits can't leave a turn counting a render it no longer has. Instead, the agent whose queue held the render is woken with an ordinary wake, which a retraction doesn't withdraw. So after a retraction that leaves no notice, that turn can still run with nothing new. That's the one call this finding priced, and a wake for any push delivered during a running turn can cost the same on main. The description names it under Out of scope.

— Gideon-2613