<task-notification>
<task-id>bmby1p3hm</task-id>
Monitor event: "« spt event »"
<event><EVENT-PART seq="1/7" id="4b136e04" type="msg" from="doyle">[doyle → todlando] W0.3 — CONDITIONAL PASS. Design conformance confirmed from your recap (and it's the tiny additive mirror of W0.2 I already verified):
- mark-online site = cmd_bind, gated state==live_agent ∧ psyche_init == the reconcile host predicate → no online-but-unhostable perch (alignment adopted, cmd</EVENT-PART>
<EVENT-PART seq="2/7" id="4b136e04">_listen parity noted). ✓
- NO SECOND HOST PATH: cmd_bind writes ONLY the online signal; reconcile_once hosts. ✓ (the single-source-of-truth invariant)
- GAP-CLOSES: live_bind_firsthost_e2e — real `api bind --type live_agent` writes online (not hand-seeded) → reconcile hosts (set.len==1) + psyche nested perch → spt-hosted-no-Psy</EVENT-PART>
<EVENT-PART seq="3/7" id="4b136e04">che gap CLOSED. That's the W0.3 payload + real-not-synthetic proof. ✓
- clippy --workspace + traceable EXIT 0. ✓

CONDITION: both-runner CI green on a916727 (run 27555949485). Ping me the run id at green; I confirm independently → W0.3 full PASS. (W0.3 is small + design-gated, so I gate it lighter than W0.1/W0.2 — CI-green + t</EVENT-PART>
<EVENT-PART seq="4/7" id="4b136e04">he gap-closes test in the log closes it.)

W0.4 PROTOCOL CONFIRMED: bring me the W0.4 DESIGN before deep commit (same as W0.1/W0.2). Bring the DAEMON plan onto the branch + write all three blockers into its W0.4 section first — good. I gate W0.4 HARDEST, especially:
- (i) the int RE-POINT: the new production-path E2E must prove the </EVENT-PART>
<EVENT-PART seq="5/7" id="4b136e04">BRAIN PROCESS hosts the Psyche for a REAL listen/bind (spawn the real brain, real establish→online→reconcile-hosts→commune-ingest→brain-restart→re-host), and the OLD type-level daemon_e2e int tag must MOVE to it (not just add a new one beside the false-green). That's the honest close of the M3-era over-claim.
- (iii) the lost-upda</EVENT-PART>
<EVENT-PART seq="6/7" id="4b136e04">te: prove offline RELIABLY wins over set_last_active (a test that HAMMERS the race — concurrent pulse-tick + mark_offline — and asserts un-host always fires; the field-level/CAS fix verified under contention, not just the long-pulse workaround removed).
- (ii) read-error un-host: read-fail leaves the driver, definitive-offline un-hosts.</EVENT-PART>
<EVENT-PART seq="7/7" id="4b136e04">
Bring the W0.4 design; I gate it then. On-perch for the a916727 green.</EVENT-PART></event>
</task-notification>


<owl_reachability_notice>
You have an active owl perch. When spawning subagents or doing work, use run_in_background: true so you stay reachable for incoming messages.
</owl_reachability_notice>


CAVEMAN MODE ACTIVE (full). Drop articles/filler/pleasantries/hedging. Fragments OK. Code/commits/security: write normal.


W0.3 CONDITIONAL PASS (design confirmed; gated lighter — CI-green closes it). W0.4 protocol confirmed — bring the design first; doyle gates hardest on (i) int re-point must spawn the **real brain process** + MOVE the daemon_e2e tag (not add beside), (iii) lost-update fix verified **under contention** (hammer test), (ii) read-error un-host. Check a916727 CI + start W0.4 scoping — read the lost-update sites (`set_last_active`/`set_status`).


Bash

gh pr checks 16 2>&1 | grep -iE "test \(|traceab" | head -4; echo "---rollup---"; gh pr view 16 --json statusCheckRollup --jq '[.statusCheckRollup[]|select(.conclusion!=null)|.conclusion]|unique' 2>&1

Check a916727 CI status


Grep

pub fn set_last_active|pub fn set_status|pub fn set_status_at|fn write_info_field


test (self-hosted, Linux, kitsubito)	pending	0	https://github.com/SaberMage/spt-core/actions/runs/27555949485/job/81454873011
traceability	pass	9s	https://github.com/SaberMage/spt-core/actions/runs/27555949485/job/81454872784
test (self-hosted, Windows, hfenduleam)	pending	0	https://github.com/SaberMage/spt-core/actions/runs/27555949485/job/81454872874
---rollup---
["","SUCCESS"]


crates\spt-store\src\info.rs:165:pub fn set_status(perch_path: &Path, status: &str) -> std::io::Result<()> {
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-166-    let mut rec = read_info(perch_path).ok_or_else(|| {
crates\spt-store\src\info.rs-167-        std::io::Error::new(
crates\spt-store\src\info.rs-168-            std::io::ErrorKind::NotFound,
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-169-            "info.json absent or unreadable",
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-170-        )
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-171-    })?;
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-172-    rec.status = Some(status.to_string());
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-173-    write_info(perch_path, &rec)
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-174-}
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-175-
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-176-/// Stamp the `last_active_ms` recency marker on an existing perch's `info.json`
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-177-/// (REQ-UPD-4). Read-modify-write through the atomic path (a concurrent reader
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-178-/// still sees a complete old-or-new record). Errors if the record is
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-179-/// absent/unreadable — the daemon only stamps perches it hosts.
--
crates\spt-store\src\info.rs:181:pub fn set_last_active(perch_path: &Path, now_ms: u64) -> std::io::Result<()> {
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-182-    let mut rec = read_info(perch_path).ok_or_else(|| {
crates\spt-store\src\info.rs-183-        std::io::Error::new(
crates\spt-store\src\info.rs-184-            std::io::ErrorKind::NotFound,
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-185-            "info.json absent or unreadable",
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-186-        )
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-187-    })?;
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-188-    rec.last_active_ms = Some(now_ms);
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-189-    write_info(perch_path, &rec)
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-190-}
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-191-
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-192-/// Stamp the daemon-owned resting state (D9-2, REQ-INST-3) on an existing
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-193-/// perch's `info.json` — the state machine's one durable write. `dormant_since_ms`
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-194-/// is stamped alongside (the auto-suspend anchor, counted from dormancy onset)
C:\Users\decid\Documents\projects\spt-core\crates\spt-store\src\info.rs-195-/// and MUST be `Some` exactly when `state` is dormant — the pair moves


a916727 CI: traceability green; test×2 pending. The lost-update root cause is clear — **both `set_status` and `set_last_active` full-record RMW info.json**; cross-process (mark_offline via cmd_shutdown = spt process; set_last_active = brain process) → file-lock or separate-file needed. Ack doyle + scope the (iii) fix (write_info atomicity / lock helpers + the last_active reader).


Bash

$OWL send doyle <<'EOF'
[todlando → doyle] W0.3 CONDITIONAL PASS received — closes on a916727 green (test×2 pending, traceability already green). Ping at green.

W0.4 protocol confirmed — bringing you the full DESIGN before deep commit. Your 3 hardest-gate points locked:
 (i) int RE-POINT: the new prod-path E2E must spawn the REAL BRAIN PROCESS hosting the Psyche for a real listen/bind (real establish→online→reconcile-hosts→commune-ingest→brain-restart→re-host), and the OLD [int->REQ-DAEMON-1] tag MOVES from the type-level daemon_e2e to it (not added beside the false-green). Honest close of the M3 over-claim.
 (iii) lost-update: a HAMMER test (concurrent pulse-tick set_last_active + mark_offline) asserting un-host ALWAYS fires — the fix verified under contention, not just the long-pulse workaround removed.
 (ii) read-error un-host: read-fail leaves the driver; definitive-offline un-hosts.

ROOT CAUSE confirmed (iii): both set_status AND set_last_active are FULL-RECORD read-modify-writes of info.json (info.rs:165/181) — the write is atomic (tmp+rename) but the RMW PAIR isn't serialized → lost update. And it's CROSS-PROCESS: mark_offline runs in the spt process (cmd_shutdown→graceful_signoff), set_last_active in the BRAIN process (pulse driver). So an in-process Mutex won't fix it — needs cross-process serialization (a per-perch info.json file-lock around the RMW) OR moving last_active_ms to its OWN file (so the two writers touch different files, zero race). Scoping both now (lock helper availability + the most_recently_active reader that consumes last_active_ms) to bring you a recommendation in the W0.4 design. Lean: separate-file for last_active (targeted, cross-process-clean, no lock infra) — but will price the file-lock option too (it fixes the whole info.json-concurrency CLASS you named). — todlando
EOF
echo sent=$?

Ack W0.3 + W0.4 protocol + iii root cause


Grep

pub fn write_info|flock|FileLock|LockFile|fs2|fn lock|\.lock\(


➜ SENT:doyle
sent=0


crates\spt-store\src\info.rs:273:pub fn write_info(perch_path: &Path, info: &InfoJson) -> std::io::Result<()> {
crates\spt-store\src\perch.rs:438:            let lock = ENV_LOCK.lock().unwrap_or_else(|e| e.into_inner());


No cross-process file-lock infra exists (only an in-process test Mutex) — so the separate-file approach for `last_active` is the lower-infra (iii) fix. Confirm the `last_active_ms` reader footprint to price it.


crates\spt-store\src\info.rs:69:    pub last_active_ms: Option<u64>,
crates\spt-store\src\info.rs:147:            last_active_ms: None,
crates\spt-store\src\info.rs:176:/// Stamp the `last_active_ms` recency marker on an existing perch's `info.json`
crates\spt-store\src\info.rs:181:pub fn set_last_active(perch_path: &Path, now_ms: u64) -> std::io::Result<()> {
crates\spt-store\src\info.rs:188:    rec.last_active_ms = Some(now_ms);
crates\spt-store\src\info.rs:360:            last_active_ms: None,
crates\spt-store\src\info.rs:413:    // [unit->REQ-UPD-4] set_last_active stamps the recency marker on an existing
crates\spt-store\src\info.rs:416:    fn set_last_active_stamps_recency() {
crates\spt-store\src\info.rs:424:            read_info(d.path()).unwrap().last_active_ms,
crates\spt-store\src\info.rs:429:        set_last_active(d.path(), 1234).unwrap();
crates\spt-store\src\info.rs:430:        assert_eq!(read_info(d.path()).unwrap().last_active_ms, Some(1234));
crates\spt-store\src\info.rs:432:        set_last_active(d.path(), 5678).unwrap();
crates\spt-store\src\info.rs:433:        assert_eq!(read_info(d.path()).unwrap().last_active_ms, Some(5678));
crates\spt-store\src\info.rs:437:        assert!(set_last_active(empty.path(), 1).is_err());
crates\spt-daemon\tests\dispatch.rs:595:    info::set_last_active(&perch_path, 1_000).unwrap();
crates\spt-daemon\tests\dispatch.rs:604:            last_active_ms: Some(9_000),
crates\spt-daemon\tests\dispatch.rs:921:            last_active_ms: None,
crates\spt-net\src\net\wanmsg.rs:111:                last_active_ms: None,
crates\spt-net\src\net\replicate.rs:157:                last_active_ms: None,
crates\spt-daemon\src\consent.rs:13://! - [`most_recently_active`] — resolve that target over the **v1 registry**
crates\spt-daemon\src\consent.rs:14://!   (live perches + their `last_active_ms` recency stamp). This is the
crates\spt-daemon\src\consent.rs:36:    /// Its `last_active_ms` recency stamp (0 if never stamped — least-recent).
crates\spt-daemon\src\consent.rs:37:    pub last_active_ms: u64,
crates\spt-daemon\src\consent.rs:55:/// [`most_recently_active`]) so the decision is deterministic and testable.
crates\spt-daemon\src\consent.rs:68:/// returns the one with the greatest `last_active_ms`. A perch never stamped

[Showing results with pagination = limit: 25]


`last_active_ms` reader footprint is small (mainly `consent::most_recently_active`), but the lost-update **class** also includes `set_rest` (dormancy) vs `set_status` — so a targeted last_active-file-move wouldn't fix the whole class doyle named. The complete fix = a per-perch info.json write-lock. `run_brain` already runs `spawn_live_host` (W0.1 wiring), so the (i) production int can spawn a real Broker + real `run_brain` thread. I have enough to bring doyle the full W0.4 design.


Bash

$OWL send doyle <<'EOF'
[todlando → doyle] W0.4 DESIGN — for your gate before deep commit. The close-out wave; all 3 blockers.

(i) INT RE-POINT (real-brain production path):
NEW int spawns the REAL brain: bind a Broker + run brainproc::run_brain on a thread (it already runs livehost::spawn_live_host since W0.1 — so the reconcile loop is the REAL brain's, not an in-test reconcile call). Then: real `spt api bind/listen --type live_agent` → perch marked online → the REAL brain's livehost reconcile hosts the Psyche (poll the nested perch) → drop a commune → the brain's pulse ingests it → DROP the run_brain thread + respawn (brain restart) → boot reconcile RE-HOSTS. MOVE the [int->REQ-DAEMON-1] tag FROM the type-level daemon_e2e ONTO this test (daemon_e2e keeps its REQ-DAEMON-2/4 + hazard tags — only the DAEMON-1 int moves). That honestly kills the M3-era type-level false-green.

(ii) READ-ERROR UN-HOST:
reconcile stop-side currently: read_info(perch).map(status==online).unwrap_or(false) → a read FAILURE reads as not-online → un-hosts. Fix: distinguish PERCH-GONE (dir missing → torn down → un-host, the legit teardown) from READ-FAIL (dir EXISTS but info.json unreadable/transient → LEAVE the driver, retry next tick). So: if !perch_dir.exists() → un-host; else read_info → Some(status≠online) → un-host, None(transient) → LEAVE.

(iii) LOST-UPDATE — needs your ruling on scope:
Root: set_status / set_last_active / set_rest are ALL full-record RMW of info.json (atomic write, un-serialized RMW pair) → cross-process lost update (mark_offline=spt proc via cmd_shutdown; set_last_active+set_rest=brain proc). The CLASS you named = any of {last_active, rest} clobbering a concurrent status=offline.
  OPTION A (complete, my lean): a per-perch info.json WRITE-LOCK — a cross-process advisory file lock (<perch>/.info.lock) held around the read-modify-write in set_status/set_last_active/set_rest. Serializes all 3 writers → NO lost update of any field, fixes the whole class. Cost: a small file-lock primitive (no std file-locking; checking for an existing dep — fs2/fd-lock — else ~30 lines platform advisory lock).
  OPTION B (targeted): move last_active_ms to its OWN file → set_last_active stops touching info.json. Cheaper (no lock), but does NOT fix set_rest-vs-status, so the class survives.
Lean A (you called it a class; A closes the class). Your call on A vs B.
HAMMER TEST (verifies iii under contention, not workaround-removal): N threads spamming set_last_active + set_rest on a perch while one thread mark_offlines it; assert final status==offline (offline always wins) AND a reconcile un-hosts. Then remove the long-pulse+settle workarounds from the W0.2/W0.3 ints (the race is gone → fast pulse is safe again).

SEQUENCING within W0.4: (iii) fix first (it unblocks removing the test workarounds), then (ii), then (i) the production int. Gate the design — esp. A-vs-B (iii) — and I write it. (a916727 W0.3 CI still finishing; ping at green.) — todlando
EOF
echo sent=$?

Send full W0.4 design to doyle


<owl_messages>
<owl_message from="doyle" priority="high">[doyle → todlando] Excellent root-cause — cross-process full-record RMW (signoff in spt proc vs set_last_active in the brain) → in-process Mutex is correctly ruled out. That's the real shape.

EARLY STEER (not the final ruling — bring the W0.4 design): I lean (B) separate-file for last_active_ms too, and here's the clincher beyond "targeted/lock-free": it's the BETTER DESIGN independent of the race. The pulse driver rewriting the WHOLE durable record (incl status) every 5s just to bump a timestamp is wrong on its face — a high-frequency churny heartbeat field does NOT belong in the same RMW as the meaningful, rarely-written state (status, adapter, session_id). Splitting last_active out = the heartbeat writer and the state writer touch different files by construction → the race can't exist, AND the durable record stops being rewritten 12×/min. Structurally cleaner, not just a race patch.

(A) file-lock fixes the whole info.json-concurrency CLASS, which is more future-proof — BUT cross-process file-locking is a known cross-platform footgun (flock vs LockFileEx, advisory vs mandatory, stale-lock reaping, the Win/Unix split). Worth it ONLY if (1) a robust cross-process lock helper ALREADY exists in-tree (you're checking — if it does, A gets much cheaper) AND (2) there are OTHER concurrent-RMW pairs on info.json beyond last_active/status (if last_active is the ONLY high-frequency writer, B dissolves the only real race and A is solving a class with no other members).

BRING TO THE W0.4 DESIGN (my ruling inputs): (1) lock-helper-availability finding; (2) the enumeration — are there other info.json RMW pairs that race, or is last_active the sole high-frequency writer? (3) confirm the most_recently_active reader (and any other last_active consumer) does NOT need an ATOMIC (status, last_active) read — if it reads them together and needs consistency, splitting files introduces a read-skew you must address. With those three I rule A vs B at the design gate.

Default if the inputs are neutral: (B). Targeted, lock-free, cross-process-clean, and the right separation regardless. Don't build cross-platform file-locking infra for a problem a field-split solves structurally — unless the helper already exists + the class has other members. Bring the design; gate it then. On-perch for a916727 green → W0.3 full PASS first.</owl_message>
</owl_messages>

[OWL SYSTEM - HIGHEST PRIORITY] You have received high-priority owl messages above. STOP your current task and acknowledge each high-priority message BEFORE continuing with any tool use. If you are about to spawn subagent(s), run them in the background so you remain available for incoming messages.


ScheduleWakeup

Polling PR #16 run 27555949485 (W0.3 a916727) test×2 for both-runner green to ping doyle → W0.3 full PASS; his W0.4 design gate (A-vs-B iii ruling) also arrives via Monitor.

Prompt: <<autonomous-loop-dynamic>>


Next wakeup scheduled for 08:18:00 (in 285s). Nothing more to do this turn — the harness re-invokes you when the wakeup fires or a task-notification arrives.


doyle EARLY STEER: lean **(B) separate-file** for last_active — better design regardless (high-frequency heartbeat shouldn't share an RMW with rarely-written state; stops rewriting the durable record 12×/min). Wants 3 ruling inputs: (1) lock-helper availability — **none in-tree** (confirmed). (2) Is last_active the **sole high-frequency** info.json writer, or do other RMW pairs race? (3) Does `most_recently_active` need an **atomic (status, last_active)** read? Check the resting write-frequency + the consent reader.


55	/// [`most_recently_active`]) so the decision is deterministic and testable.
56	// [impl->REQ-UPD-4]
57	pub fn decide(full_auto: bool, target: Option<ConsentTarget>) -> ConsentDecision {
58	    if full_auto {
59	        ConsentDecision::AutoApproved
60	    } else {
61	        ConsentDecision::NeedsConsent(target)
62	    }
63	}
64
65	/// Resolve the user's **most-recently-active live session** in `owlery` — the
66	/// consent-prompt target (REQ-UPD-4). Enumerates the top-level (`Self_`) perches,
67	/// keeps the ones that are **currently live** (the single liveness resolver), and
68	/// returns the one with the greatest `last_active_ms`. A perch never stamped
69	/// (`last_active_ms` absent) ranks as `0` (least-recent). `None` if no live
70	/// session exists.
71	///
72	/// This is the **v1 registry resolution** the consent flow rides — live perches +
73	/// their recency stamp, not the deferred PresenceChannel. The resolver core is
74	/// shared with the notif engine ([`crate::notif::most_recently_active_where`],
75	/// D8b — the subnet-scoped form); consent is the degenerate (unscoped) call.
76	/// Tolerant: an unreadable perch is skipped, never a panic.
77	// [impl->REQ-UPD-4]
78	pub fn most_recently_active(owlery: &Path) -> Option<ConsentTarget> {
79	    crate::notif::most_recently_active_where(owlery, |_| true)
80	}
81
82	#[cfg(test)]
83	mod tests {
84	    use super::*;
85	    use spt_store::info::{set_last_active, set_status, write_info, InfoJson};
86	    use spt_store::liveness::{STATUS_OFFLINE, STATUS_ONLINE};
87	    use spt_store::perch::{self, ParentHint};
88
89	    /// Create a bound, daemon-hosted Self perch under `owlery` with a `status` and
90	    /// an optional recency stamp.
91	    fn seed_perch(owlery: &Path, id: &str, status: &str, last_active: Option<u64>) -> PathBuf {
92	        let p = perch::resolve_perch_path_in(owlery, id, ParentHint::Infer);
93	        std::fs::create_dir_all(&p).unwrap();
94	        write_info(&p, &InfoJson::new(id, "t", 4242, "sid", "live_agent")).unwrap();

/// [`most_recently_active`]) so the decision is deterministic and testable.
// [impl->REQ-UPD-4]
pub fn decide(full_auto: bool, target: Option<ConsentTarget>) -> ConsentDecision {
    if full_auto {
        ConsentDecision::AutoApproved
    } else {
        ConsentDecision::NeedsConsent(target)
    }
}

/// Resolve the user's **most-recently-active live session** in `owlery` — the
/// consent-prompt target (REQ-UPD-4). Enumerates the top-level (`Self_`) perches,
/// keeps the ones that are **currently live** (the single liveness resolver), and
/// returns the one with the greatest `last_active_ms`. A perch never stamped
/// (`last_active_ms` absent) ranks as `0` (least-recent). `None` if no live
/// session exists.
///
/// This is the **v1 registry resolution** the consent flow rides — live perches +
/// their recency stamp, not the deferred PresenceChannel. The resolver core is
/// shared with the notif engine ([`crate::notif::most_recently_active_where`],
/// D8b — the subnet-scoped form); consent is the degenerate (unscoped) call.
/// Tolerant: an unreadable perch is skipped, never a panic.
// [impl->REQ-UPD-4]
pub fn most_recently_active(owlery: &Path) -> Option<ConsentTarget> {
    crate::notif::most_recently_active_where(owlery, |_| true)
}

#[cfg(test)]
mod tests {
    use super::*;
    use spt_store::info::{set_last_active, set_status, write_info, InfoJson};
    use spt_store::liveness::{STATUS_OFFLINE, STATUS_ONLINE};
    use spt_store::perch::{self, ParentHint};

    /// Create a bound, daemon-hosted Self perch under `owlery` with a `status` and
    /// an optional recency stamp.
    fn seed_perch(owlery: &Path, id: &str, status: &str, last_active: Option<u64>) -> PathBuf {
        let p = perch::resolve_perch_path_in(owlery, id, ParentHint::Infer);
        std::fs::create_dir_all(&p).unwrap();
        write_info(&p, &InfoJson::new(id, "t", 4242, "sid", "live_agent")).unwrap();


Grep

fn rest_event|AutoSuspendTick|fn set_rest|set_rest\(|fn read_rest|write.*rest|rec.rest|set_status|set_last_active


crates\spt-daemon\src\resting.rs:21://! ([`read_rest`] / [`write_rest`] over [`spt_store::info::set_rest_state`]);
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-22-//! effects (the transition echo commune, the wake resurface + freshness pull
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-23-//! — REQ-INST-4) hang off the *edges* and are wired by the transition host,
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-24-//! not here. Keeping the table pure is what makes the CONTEXT state diagram
--
crates\spt-daemon\src\resting.rs:103:    AutoSuspendTick { now_ms: u64 },
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-104-    /// A driver attached / `spt wake` / interaction — re-activate in place.
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-105-    Wake,
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-106-}
--
crates\spt-daemon\src\resting.rs:132:        (RestState::Dormant, RestEvent::AutoSuspendTick { now_ms }) => {
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-133-            let after = auto_suspend_after_ms.filter(|ms| *ms > 0)?;
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-134-            let since = dormant_since_ms?;
crates\spt-daemon\src\resting.rs-135-            (now_ms.saturating_sub(since) >= after).then_some(RestState::Suspended)
--
crates\spt-daemon\src\resting.rs:143:        // AutoSuspendTick anywhere but dormant.
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-144-        _ => None,
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-145-    }
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-146-}
--
crates\spt-daemon\src\resting.rs:203:/// 2. persists the landing state ([`write_rest`] — the dormancy anchor moves
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-204-///    with it);
crates\spt-daemon\src\resting.rs-205-\ 3. **→ active (wake)**: runs `on_wake` — the resurface-at-boundary +
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-206-///    freshness-pull effects (re-activation in place catches up immediately).
--
crates\spt-daemon\src\resting.rs:243:    write_rest(perch_path, to, now_ms).map_err(|e| format!("persist rest state: {e}"))?;
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-244-
crates\spt-daemon\src\resting.rs-245-    if to == RestState::Active {
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-246-        on_wake();
--
crates\spt-daemon\src\resting.rs:390:pub fn read_rest(perch_path: &Path) -> Option<RestRecord> {
crates\spt-daemon\src\resting.rs-391-    let rec = info::read_info(perch_path)?;
crates\spt-daemon\src\resting.rs:392:    let state = RestState::from_tag(rec.rest_state.as_deref()?)?;
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-393-    Some(RestRecord {
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-394-        state,
crates\spt-daemon\src\resting.rs-395-        dormant_since_ms: rec.dormant_since_ms,
--
crates\spt-daemon\src\resting.rs:439:pub fn write_rest(perch_path: &Path, state: RestState, now_ms: u64) -> std::io::Result<()> {
crates\spt-daemon\src\resting.rs-440-    let anchor = (state == RestState::Dormant).then_some(now_ms);
crates\spt-daemon\src\resting.rs-441-    info::set_rest_state(perch_path, state.as_tag(), anchor)
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-442-}
--
crates\spt-daemon\src\resting.rs:490:        use RestEvent::AutoSuspendTick;
crates\spt-daemon\src\resting.rs-491-        use RestState::*;
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-492-
crates\spt-daemon\src\resting.rs-493-        \ Default OFF: no knob ⇒ no edge no matter how stale.
--
crates\spt-daemon\src\resting.rs:495:            transition(Dormant, Some(0), AutoSuspendTick { now_ms: u64::MAX }, None),
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-496-            None
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-497-        );
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-498-
--
crates\spt-daemon\src\resting.rs:505:                AutoSuspendTick { now_ms: 1_499 },
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-506-                knob
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-507-            ),
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-508-            None,
--
crates\spt-daemon\src\resting.rs:515:                AutoSuspendTick { now_ms: 1_500 },
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-516-                knob
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-517-            ),
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-518-            Some(Suspended),
--
crates\spt-daemon\src\resting.rs:525:            transition(Dormant, None, AutoSuspendTick { now_ms: u64::MAX }, knob),
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-526-            None
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-527-        );
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-528-
--
crates\spt-daemon\src\resting.rs:531:            transition(Active, None, AutoSuspendTick { now_ms: u64::MAX }, knob),
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-532-            None
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-533-        );
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-534-        assert_eq!(
crates\spt-daemon\src\resting.rs:535:            transition(Suspended, None, AutoSuspendTick { now_ms: u64::MAX }, knob),
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-536-            None
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-537-        );
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-538-    }
--
crates\spt-daemon\src\resting.rs:708:        write_rest(d.path(), RestState::Dormant, 1_000).unwrap();
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-709-
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-710-        // Node enables 500ms; dormant since 1000; tick at 2000 ⇒ suspended.
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-711-        let report = apply_event(
--
crates\spt-daemon\src\resting.rs:713:            RestEvent::AutoSuspendTick { now_ms: 2_000 },
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-714-            Some(500),
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-715-            2_000,
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-716-            || Ok(()),
--
crates\spt-daemon\src\resting.rs:737:        write_rest(d2.path(), RestState::Dormant, 1_000).unwrap();
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-738-        let out = apply_event(
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-739-            d2.path(),
crates\spt-daemon\src\resting.rs:740:            RestEvent::AutoSuspendTick { now_ms: u64::MAX },
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-741-            Some(500),
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-742-            2_000,
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-743-            || Ok(()),
--
crates\spt-daemon\src\resting.rs:917:        write_rest(d.path(), RestState::Dormant, 1_000).unwrap();
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-918-        assert!(deferred_held(d.path()), "dormant holds");
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-919-
crates\spt-daemon\src\resting.rs:920:        write_rest(d.path(), RestState::Suspended, 2_000).unwrap();
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-921-        assert!(deferred_held(d.path()), "suspended holds");
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-922-
crates\spt-daemon\src\resting.rs:923:        write_rest(d.path(), RestState::Active, 3_000).unwrap();
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-924-        assert!(!deferred_held(d.path()), "the wake edge IS the release");
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-925-
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-926-        // A foreign future tag degrades to no-record ⇒ flows, never wedges.
--
crates\spt-daemon\src\resting.rs:945:    // [unit->REQ-INST-3] durability round-trip: write_rest stamps the
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-946-    // dormancy anchor exactly on the dormant state (cleared otherwise),
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-947-    // read_rest reads it back, a recordless perch reads None (legacy
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-948-    // fallback), and a foreign future tag degrades to None instead of
--
crates\spt-daemon\src\resting.rs:965:        write_rest(d.path(), RestState::Dormant, 7_000).unwrap();
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-966-        let rec = read_rest(d.path()).expect("record present");
crates\spt-daemon\src\resting.rs-967-        assert_eq!(rec.state, RestState::Dormant);
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-968-        assert_eq!(
--
crates\spt-daemon\src\resting.rs:974:        write_rest(d.path(), RestState::Active, 8_000).unwrap();
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-975-        let rec = read_rest(d.path()).expect("record present");
crates\spt-daemon\src\resting.rs-976-        assert_eq!(rec.state, RestState::Active);
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-977-        assert_eq!(
--
crates\spt-daemon\src\resting.rs:982:        write_rest(d.path(), RestState::Suspended, 9_000).unwrap();
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-983-        let rec = read_rest(d.path()).expect("record present");
crates\spt-daemon\src\resting.rs-984-        assert_eq!(rec.state, RestState::Suspended);
C:\Users\decid\Documents\projects\spt-core\crates\spt-daemon\src\resting.rs-985-        assert_eq!(


Findings nail the 3 ruling inputs:
- **(1) Lock helper:** none in-tree (only an in-process test Mutex) → don't build lock infra.
- **(2) Enumeration:** `set_last_active` = sole **high-frequency** writer (every tick, every active agent). `set_rest`/`write_rest` writes **only on a rest-state transition** (resting.rs:243 — `to` Some), and auto-suspend is **opt-in (default off)** → negligible. `set_status` rare. So last_active is the only real race.
- **(3)** `most_recently_active` is a recency **ranking** (status filter + last_active rank) — no atomic `(status, last_active)` read needed; read-skew is tolerable.

All three favor **B**. Send doyle the inputs + recommendation.


Bash

$OWL send doyle <<'EOF'
[todlando → doyle] W0.4 (iii) RULING INPUTS — all three point to (B). Your early steer holds.

(1) LOCK-HELPER AVAILABILITY: NONE in-tree. Only an in-process test Mutex (perch.rs ENV_LOCK); no cross-process advisory-lock helper anywhere in spt-store/spt-daemon. So (A) means building the flock/LockFileEx footgun from scratch. → favors B.

(2) ENUMERATION (the clincher): last_active IS the sole HIGH-frequency info.json writer.
  - set_last_active: EVERY pulse tick (5s), EVERY active agent → the only churny writer.
  - set_rest/write_rest: writes ONLY on a rest-state TRANSITION (resting.rs:243, `to` Some) — NOT per tick. And auto-suspend is OPT-IN (default OFF — resting.rs:493 "no knob ⇒ no edge"). So set_rest is rare + opt-in-gated.
  - set_status: rare (establish online, signoff offline).
  So the class's only HIGH-frequency member is last_active; B dissolves the only real race. set_rest-vs-status is a vanishing residual (opt-in auto-suspend + dormant + the exact threshold-crossing tick racing a signoff). If you want the class AIRTIGHT without locks: B+ = also move rest_state/dormant_since to the runtime file (same structural argument — daemon-churned fields out of the durable identity record). I lean plain B (the residual is negligible + opt-in); B+ is one more field-group move if you want zero residual.

(3) most_recently_active: a recency RANKING — filters by live status (info.json) + ranks by last_active_ms. Does NOT need an atomic (status, last_active) read; a one-cycle stale last_active just reorders, no invariant broken. So splitting last_active into its own file is read-skew-safe. (Only consumer of note; net/dispatch just init None.)

RECOMMENDATION: (B). Move last_active_ms to <perch>/last_active (a tiny u64 file): set_last_active writes ONLY that file, most_recently_active reads it (fallback to info.json field for back-compat during rollout). The high-frequency heartbeat writer and the status writer touch different files by construction → un-host's status read can't be clobbered. No locks, structurally cleaner, stops the 12×/min durable-record rewrite. Rule B (or B+ for zero residual) and I write W0.4: (iii) field-split + hammer test → (ii) read-error un-host → (i) real-brain int re-point. — todlando
EOF
echo sent=$?

Send W0.4 iii ruling inputs to doyle


<owl_messages>
<owl_message from="doyle" priority="high">[doyle → todlando] W0.4 DESIGN GATE — (i)/(ii) PASS, (iii) RULED = OPTION A. The enumeration I asked for flipped my earlier B-lean — good, that's why I asked.

(i) INT RE-POINT — PASS. Spawn the REAL brain (Broker + brainproc::run_brain on a thread, which runs livehost::spawn_live_host since W0.1 → the reconcile is the real brain's, not an in-test call) → real bind/listen→online→brain-reconcile-hosts→commune-ingest→brain-restart→boot-reconcile-RE-HOSTS, and MOVE the [int->REQ-DAEMON-1] tag OFF the type-level daemon_e2e ONTO this (daemon_e2e keeps its DAEMON-2/4 + hazard tags). That is EXACTLY the honest close of the M3-era false-green — the int now proves the brain PROCESS hosts the Psyche for a real endpoint. ✓ This is the rung I care most about; it's right.

(ii) READ-ERROR UN-HOST — PASS. perch-dir-exists is the correct discriminator: !dir.exists() → torn down → un-host (legit); dir exists + read_info=None (transient) → LEAVE the driver, retry; Some(status≠online) → un-host. Definitive-gone/offline un-hosts, transient read-fail doesn't. ✓ Clean.

(iii) LOST-UPDATE — RULING: OPTION A (the file-lock). My earlier steer leaned B, EXPLICITLY conditional on "last_active is the sole high-frequency writer." Your enumeration falsified that: set_REST (dormancy transitions) is a SECOND brain-process full-record RMW that also clobbers status=offline. So:
- B (split last_active) does NOT fix set_rest-vs-status — the class survives; you'd have to ALSO split rest (two extra files) to close it. And the split introduces read-skew risk for any reader needing a consistent (status, X).
- A (per-perch info.json write-lock) closes the WHOLE class in one move (status/last_active/rest all serialized), keeps the single record (no read-skew), and the cost is bounded.
The enumeration tips it to A. Closing the class with one lock beats splitting N hot fields into N files.

A — DESIGN CONSTRAINTS I gate on:
- Use OS ADVISORY locks (flock / LockFileEx), held ONLY around the RMW (read→modify→tmp+rename→release). Brief hold, low contention (µs once per 5s per perch).
- OS advisory locks auto-release on process exit → NO stale-lock reaping needed (the big win over existence-based lockfiles; a crashed holder's lock is OS-freed). Confirm that property holds for whatever primitive you pick.
- PREFER a vetted crate (fs2 or fd-lock — both mature, cross-platform) over a hand-rolled ~30-liner, IF it's a clean add / already transitive. Hand-roll only if a new dep is unwanted; if you hand-roll, test BOTH platforms explicitly.
- READERS STAY LOCK-FREE: the atomic tmp+rename already gives readers a complete old-or-new record, so read_info needs NO lock — the lock serializes WRITERS only. Confirm no reader path takes the lock (would add needless contention).
- ALL THREE setters (set_status, set_last_active, set_rest) must acquire it — miss one and the race persists. Grep all info.json RMW sites.

HAMMER TEST — required as you described: N threads spamming set_last_active + set_rest while one mark_offlines; assert the final status is offline AND (the real point) the brain reconcile un-hosts — i.e. un-host RELIABLY fires under contention. Proof-under-contention, not workaround-removal. (Your msg truncated mid-test — confirm the assertion is "un-host fires / status stays offline" not just "no panic.")

So: W0.4 design = (i)/(ii) PASS, (iii) OPTION A with those constraints. Write it; I gate the impl HARDEST here — the moved int tag (real-brain arc), the hammer test (un-host under contention), all-three-setters-locked, readers-lock-free. This is the wave that makes REQ-DAEMON-1 honestly complete. Go (after a916727 green closes W0.3).</owl_message>
</owl_messages>

[OWL SYSTEM - HIGHEST PRIORITY] You have received high-priority owl messages above. STOP your current task and acknowledge each high-priority message BEFORE continuing with any tool use. If you are about to spawn subagent(s), run them in the background so you remain available for incoming messages.


W0.4 DESIGN GATE: **(i)/(ii) PASS, (iii) RULED OPTION A** (file-lock) — my enumeration (set_rest is a 2nd brain-process clobberer) flipped his B-lean; A closes the whole class in one move. Constraints: OS advisory locks (auto-release on exit, no stale reaping), prefer fs2/fd-lock if transitive, readers lock-free, ALL info.json RMW setters lock, hammer test asserts un-host fires under contention. Pre-write checks: CI status + lock-crate availability + enumerate ALL RMW setters.


gh pr checks 16 2>&1 | grep -iE "test \(self|rollup" | head -3; echo "---fs2/fd-lock in lockfile?---"; grep -iE '^name = "(fs2|fd-lock|fs4|file-lock|advisory-lock)"' Cargo.lock 2>/dev/null || echo "NONE of fs2/fd-lock/fs4 in Cargo.lock"

Check a916727 CI + lock crate availability


test (self-hosted, Linux, kitsubito)	pass	4m53s	https://github.com/SaberMage/spt-core/actions/runs/27555949485/job/81454873011
test (self-hosted, Windows, hfenduleam)	pending	0	https://github.com/SaberMage/spt-core/actions/runs/27555949485/job/81454872874
---fs2/fd-lock in lockfile?---
NONE of fs2/fd-lock/fs4 in Cargo.lock


crates\spt-store\src\info.rs:165:pub fn set_status(perch_path: &Path, status: &str) -> std::io::Result<()> {
crates\spt-store\src\info.rs:166:    let mut rec = read_info(perch_path).ok_or_else(|| {
crates\spt-store\src\info.rs:181:pub fn set_last_active(perch_path: &Path, now_ms: u64) -> std::io::Result<()> {
crates\spt-store\src\info.rs:182:    let mut rec = read_info(perch_path).ok_or_else(|| {
crates\spt-store\src\info.rs:201:pub fn set_rest_state(
crates\spt-store\src\info.rs:206:    let mut rec = read_info(perch_path).ok_or_else(|| {
crates\spt-store\src\info.rs:222:pub fn set_resources(perch_path: &Path, blurb: Option<&str>) -> std::io::Result<()> {
crates\spt-store\src\info.rs:223:    let mut rec = read_info(perch_path).ok_or_else(|| {
crates\spt-store\src\info.rs:240:pub fn set_driven_by(perch_path: &Path, node: Option<&str>) -> std::io::Result<()> {
crates\spt-store\src\info.rs:241:    let mut rec = read_info(perch_path).ok_or_else(|| {
crates\spt-store\src\info.rs:256:pub fn set_viewer_count(perch_path: &Path, count: u32) -> std::io::Result<()> {
crates\spt-store\src\info.rs:257:    let mut rec = read_info(perch_path).ok_or_else(|| {
crates\spt-store\src\info.rs:284:pub fn read_info(perch_path: &Path) -> Option<InfoJson> {


Critical findings: a916727 test-linux PASS, **test-windows pending** (W0.3 nearly closed). **No fs2/fd-lock transitive** → A needs a lock primitive. And there are **SIX** info.json RMW setters, not 3: `set_status`, `set_last_active`, `set_rest_state`, `set_resources`, `set_driven_by`, `set_viewer_count` — all clobber status. To close the class, all six must lock → a single `mutate_info` helper. Check if libc/windows-sys are already transitive (for a hand-roll vs new fs2 dep).


echo "---libc / windows-sys / winapi in lockfile?---"; grep -iE '^name = "(libc|windows-sys|winapi|rustix|nix)"' Cargo.lock 2>/dev/null | sort -u; echo "---how proc.rs does platform FFI---"; grep -nE "use libc|use windows|use winapi|extern|LockFileEx|flock|OpenProcess" crates/spt-store/src/proc.rs 2>/dev/null | head

Check libc/windows-sys availability + proc.rs FFI pattern


---libc / windows-sys / winapi in lockfile?---
name = "libc"
name = "nix"
name = "rustix"
name = "winapi"
name = "windows-sys"
---how proc.rs does platform FFI---
3://! `is_process_alive` (ADR-0001): Windows `OpenProcess` (tasklist hangs on
13:/// while reading dead on Windows (`OpenProcess(0)` fails). The guard makes the
43:        // OpenProcess with the most limited query right; tasklist/WMIC hang on
45:        extern "system" {
46:            fn OpenProcess(
54:        let handle = unsafe { OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, 0, pid) };
89:/// Nt call is the non-hanging path, mirroring the OpenProcess choice above).
107:        extern "system" {


libc, nix, rustix, winapi, windows-sys **all already transitive** — and proc.rs's established pattern (ADR-0001) is hand-rolled platform FFI (`extern "system" OpenProcess`). So a hand-rolled advisory lock uses existing deps (no new top-level dep), matching the project. fs2 would be the one new dep. Ack doyle with the findings + the single open decision (lock primitive: hand-roll vs fs2).


$OWL send doyle <<'EOF'
[todlando → doyle] W0.4 (iii)=OPTION A LOCKED, constraints understood. Two findings sharpen the impl + leave ONE decision for you:

FINDING 1 — it's SIX RMW setters, not three. All read_info→modify→write_info on info.json: set_status, set_last_active, set_rest_state, set_resources, set_driven_by, set_viewer_count (info.rs:165/181/201/222/240/256). set_driven_by + set_viewer_count are ALSO brain/dispatch writers that clobber status. So to close the CLASS, ALL SIX must take the lock — I'll funnel every setter through ONE private helper `mutate_info(perch, |rec| {...})` that acquires the lock → read_info → mutate → write_info(tmp+rename) → release(RAII drop). Single chokepoint = can't miss one (your "grep all sites / miss one = race persists" — there are 6, all routed through the helper). The 6 public setters become thin wrappers.

FINDING 2 — lock primitive (YOUR CALL): no fs2/fd-lock is transitive (a new top-level dep). BUT libc, nix, rustix, winapi, windows-sys are ALL already transitive, AND the project's established pattern (proc.rs, ADR-0001) is HAND-ROLLED platform FFI (extern "system" OpenProcess). So:
  - HAND-ROLL (my lean): libc::flock(LOCK_EX) on unix / LockFileEx on windows, RAII guard, mirroring proc.rs's cfg-split. Uses EXISTING deps, no new top-level dep, project-consistent. OS advisory → auto-release on fd close/process-exit (no stale reaping — your key property, native to flock/LockFileEx). Cost: unsafe FFI on both platforms, BUT the hammer test runs on BOTH CI runners so both legs are exercised.
  - fs2 (the de-risk): one new dep, cross-platform safe API, eliminates the FFI footgun you warned about. Used by cargo itself.
I lean HAND-ROLL (matches ADR-0001 / proc.rs, zero new dep, both platforms CI-tested) — but you warned about the cross-platform-lock footgun explicitly, so if you'd rather eat one vetted dep to de-risk, say fs2 and I'll add it. Your call.

CONFIRMED on the other constraints: readers STAY lock-free (read_info untouched — tmp+rename already gives a complete record); auto-release-on-exit native to the OS primitive (no reaping); hammer test asserts the REAL point — final status==offline AND the brain reconcile UN-HOSTS under contention (un-host reliably fires), not just no-panic.

a916727: test-linux green, test-windows pending → W0.3 closes any moment; I'll ping. Rule the lock primitive and I write W0.4 on the green. — todlando
EOF
echo sent=$?

Ack W0.4 A + 6-setter finding + lock primitive question


<owl_messages>
<owl_message from="doyle" priority="high">[doyle → todlando] (iii) RULING REVISED: A → B+ (move last_active AND rest_state/dormant_since to a runtime sidecar). The inputs I asked for flipped my call — that's the system working, not waffling. Being explicit about WHY so it's on record:

I ruled A on ONE assumption: that set_rest is a frequent racing writer comparable to last_active. Your enumeration (#2) falsified it — set_rest writes ONLY on a rest TRANSITION (resting.rs:243), and auto-suspend is OPT-IN default-OFF (resting.rs:493). So the class's ONLY high-frequency member is last_active; set_rest-vs-status is a triple-coincidence vanishing edge (opt-in ON + exact transition tick + concurrent signoff). Add #1 (no lock helper → A = a new fs2/fd-lock dep OR a hand-rolled cross-platform flock/LockFileEx footgun) and #3 (most_recently_active is a recency ranking, no atomic (status,last_active) need → split is read-skew-safe), and all three point to B. My A-reasoning ("set_rest is also a racing writer") doesn't survive the actual frequency. B it is.

WHY B+ NOT PLAIN B: you flagged the set_rest-vs-status residual yourself. For a fix I called a HARD CORRECTNESS BLOCKER, "vanishing but real" isn't the bar — and closing it is ONE more field-group move with zero lock infra, AND it's the same structural win. So: a per-perch RUNTIME SIDECAR holding the daemon-churned/transient fields (last_active_ms + rest_state + dormant_since), brain-pulse-owned; info.json becomes the PURE DURABLE IDENTITY record (id/adapter/session_id/status), written ONLY on establish/signoff. Clean ownership split → neither file has two cross-process writers → NO race on either, zero residual, no locks. And it establishes the design RULE: daemon-churned fields live in the runtime sidecar, never info.json — which prevents the NEXT churny field from re-introducing the class (that's the future-proofing A would've bought, gotten structurally instead).

B+ CONSTRAINTS I gate:
- Grep EVERY set_last_active / set_rest / write_rest / rest_state-write / dormant_since-write site → ALL move to the sidecar; info.json status written ONLY by establish + signoff (mark_offline). Miss one churny writer on info.json and the race survives.
- Migration/back-compat: readers (most_recently_active; rest_state consumers) read the sidecar with FALLBACK to the inline info.json field for perches written by the old binary pre-migration. Don't strand existing perches.
- Read-skew on (status, rest_state) across the two files is COSMETIC (rest is a sub-state of online; a momentary list-display inconsistency, no invariant) — confirm no consumer needs them atomic.
- HAMMER TEST still required + now even cleaner: N threads spamming set_last_active+set_rest while one mark_offlines → assert un-host RELIABLY fires (status stays offline, reconcile un-hosts). With B+ the writers touch DIFFERENT files, so the test proves the structural separation holds under contention — zero clobber by construction.

So W0.4 = (iii) B+ (sidecar split, hammer test) + (ii) read-error un-host (perch-dir-exists discriminator) + (i) real-brain int re-point (MOVE the tag, real brain process, full arc). Write it; I gate the impl hardest on the moved-int real-brain arc + the hammer test + all-churny-writers-off-info.json. Go after a916727 closes W0.3.</owl_message>
</owl_messages>

[OWL SYSTEM - HIGHEST PRIORITY] You have received high-priority owl messages above. STOP your current task and acknowledge each high-priority message BEFORE continuing with any tool use. If you are about to spawn subagent(s), run them in the background so you remain available for incoming messages.


➜ SENT:doyle
sent=0


(iii) RULING REVISED again: A → **B+** — a per-perch **runtime sidecar** holding the daemon-churned fields (last_active_ms + rest_state + dormant_since); info.json becomes pure durable identity (id/adapter/session_id/status), written only on establish/signoff. Clean ownership split → no cross-process race on either file, zero residual, no lock infra. Establishes the rule: churny fields never in info.json. Ack + check a916727 CI + checkpoint the B+ spec.


gh pr checks 16 2>&1 | grep -iE "test \(self-hosted, Windows"; echo "---rollup---"; gh pr view 16 --json statusCheckRollup --jq '[.statusCheckRollup[]|select(.conclusion!=null)|.conclusion]|unique' 2>&1

Check a916727 windows test + rollup


test (self-hosted, Windows, hfenduleam)	fail	6m56s	https://github.com/SaberMage/spt-core/actions/runs/27555949485/job/81454872874
---rollup---
["FAILURE","SKIPPED","SUCCESS"]


$OWL send doyle <<'EOF'
[todlando → doyle] (iii) B+ RULED — accepted, reasoning on record (enumeration falsified the A-assumption; closing the residual is one field-group move + zero lock infra + the structural rule that prevents the next churny field re-introducing the class). This is the better fix. Constraints locked:

B+ = per-perch RUNTIME SIDECAR (<perch>/runtime.json) owning the daemon-churned/transient fields: last_active_ms + rest_state + dormant_since_ms (brain-pulse-owned). info.json = PURE DURABLE IDENTITY (id/adapter/session_id/status), written ONLY by establish + signoff(mark_offline). Neither file has two cross-process writers → no race, zero residual, no locks.

MY BUILD PLAN to your constraints:
- CHOKEPOINT: set_last_active + set_rest_state → write the sidecar ONLY (not info.json). write_rest (resting.rs:439→set_rest_state) rides it. Grep-swept the churny writers: set_last_active (info.rs:181), set_rest_state (info.rs:201), write_rest (resting.rs:439) — all to sidecar. info.json status writers = set_status only (establish/signoff). I'll grep again at impl to guarantee none missed.
- BACK-COMPAT: most_recently_active (last_active) + read_rest (rest_state/dormant_since) read the SIDECAR with FALLBACK to the inline info.json field (old-binary perches pre-migration) → no stranding. InfoJson keeps the fields (serde) for fallback-read; daemon stops WRITING them inline.
- READ-SKEW (status,rest) across files = cosmetic (rest is a sub-state of online; list-display only) — will confirm no consumer needs them atomic.
- HAMMER TEST: N threads spamming set_last_active+set_rest while one mark_offlines → assert status stays offline AND the brain reconcile UN-HOSTS (reliably fires under contention). With B+ the writers touch different files → proves the structural separation, zero clobber by construction. Then remove the long-pulse+settle workarounds from the W0.2/W0.3 ints (race gone).

SEQUENCING: (iii) sidecar+hammer → (ii) read-error un-host (perch-dir-exists discriminator) → (i) real-brain int re-point (real Broker+run_brain thread, full arc, MOVE the [int->REQ-DAEMON-1] tag off daemon_e2e). Writing on the a916727 green. — todlando
EOF
echo sent=$?

Ack B+ ruling + build plan


W0.3 test-windows **FAILED** (6m56s) — diagnose. Pull the Windows failure.


gh run view 27555949485 --log-failed --job 81454872874 2>&1 | grep -iE "FAIL|panic|assert|error\[|live_bind|live_firsthost|os error|----" | head -25

Pull W0.3 windows test failure


test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:09:28.0276998Z    Compiling static_assertions v1.1.0
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:24.6054921Z         PASS [   1.374s] (  18/1066) spt::live_bind_firsthost_e2e live_bind_marks_online_and_brain_reconcile_hosts
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:25.0516561Z         PASS [   1.798s] (  39/1066) spt::live_firsthost_e2e live_listen_marks_online_and_brain_reconcile_hosts
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:25.4296036Z         PASS [   0.025s] (  82/1066) spt::bin/spt cli::tests::escalation_choice_parses_fail_closed
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:27.4181796Z         PASS [   0.631s] ( 185/1066) spt-daemon applyhost::tests::apply_staged_gates_fail_closed_with_the_seat_untouched
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:27.4943918Z         PASS [   0.023s] ( 200/1066) spt-daemon brainproc::tests::ready_generation_parses_stamp_and_fails_safe
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:28.1337262Z         PASS [   0.044s] ( 262/1066) spt-daemon effect::tests::failed_effect_is_not_recorded_applied
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:28.2130533Z         PASS [   0.027s] ( 280/1066) spt-daemon harnesshost::tests::prepare_fails_closed_on_wrong_kind_missing_role_and_bad_template
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:29.2165822Z         PASS [   0.129s] ( 336/1066) spt-daemon psyrelay::tests::null_stdout_driver_fails_the_guard
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:29.2806901Z         PASS [   0.014s] ( 345/1066) spt-daemon pump::tests::choreography_peer_step_aborts_on_first_failure
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:29.3528174Z         PASS [   0.045s] ( 364/1066) spt-daemon pump::tests::supervisor_restarts_a_panicking_pump_until_stop
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:37.5358747Z         PASS [   0.078s] ( 394/1066) spt-daemon release::tests::production_policy_loads_fail_closed
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:37.5391730Z         PASS [   0.036s] ( 395/1066) spt-daemon release::tests::tampered_metadata_fails_signature
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:37.6054074Z         PASS [   0.040s] ( 404/1066) spt-daemon resting::tests::apply_event_echo_failure_is_loud_but_state_persists
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:38.6654972Z         PASS [   0.161s] ( 437/1066) spt-daemon shellhost::tests::launch_fails_closed_on_bad_templates
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.1763061Z         PASS [   1.120s] ( 611/1066) spt-live reconcile::tests::failed_turn_preserves_everything
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.5881395Z         PASS [   0.016s] ( 638/1066) spt-net net::mesh::seedproof::tests::cross_connection_replay_fails
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.6016991Z         PASS [   0.014s] ( 639/1066) spt-net net::mesh::seedproof::tests::forged_proof_fails
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.6884870Z         PASS [   0.016s] ( 649/1066) spt-net net::mesh::seedproof::tests::wrong_epoch_fails
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.6992218Z         PASS [   0.017s] ( 650/1066) spt-net net::mesh::seedproof::tests::wrong_subnet_fails
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.7583981Z         PASS [   0.017s] ( 665/1066) spt-net net::pairing::ratelimit::tests::failures_impose_exponential_backoff
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.8944757Z         PASS [   0.111s] ( 680/1066) spt-net net::pairing::spake::tests::stale_epoch_fails
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.8993430Z         PASS [   0.111s] ( 681/1066) spt-net net::pairing::spake::tests::substituted_pubkey_fails
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.9040963Z         PASS [   0.115s] ( 682/1066) spt-net net::pairing::spake::tests::stale_step_fails
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:11:48.9149903Z         PASS [   0.123s] ( 685/1066) spt-net net::pairing::spake::tests::tampered_tag_fails


My W0.3 tests PASSED on Windows (both green in the log). The failure is elsewhere — find the actual failing test (nextest `FAIL [` marker).


gh run view 27555949485 --log-failed --job 81454872874 2>&1 | grep -iE "FAIL \[|TRY |SIGABRT|did not run|cancel|^.{0,80}error:" | head -20

Find the actual failing test on Windows


test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:09:22.5689108Z    Compiling windows-registry v0.6.1
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9164156Z   Cancelling due to test failure:


gh run view 27555949485 --log-failed --job 81454872874 2>&1 | grep -iE "FAIL|Summary|failed" | grep -ivE "PASS|fails|fail_closed|fail-closed|fails_|_fail|fail_" | head -20

Find the FAIL/summary lines


test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9164156Z   Cancelling due to test failure:
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9194215Z error: test run failed


Lines right before the cancel


test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9144096Z  TERMINATING [>240.000s] (─────────) spt-daemon::handoff brain_restart_survives_gaplessly_with_fresh_gen_start
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9162835Z      TIMEOUT [ 240.061s] (1066/1066) spt-daemon::handoff brain_restart_survives_gaplessly_with_fresh_gen_start
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9163234Z   stdout ───
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9163352Z
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9163406Z     running 1 test
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9163656Z     test brain_restart_survives_gaplessly_with_fresh_gen_start has been running for over 60 seconds
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9163914Z
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9163963Z     (test timed out)
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9164062Z
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9164156Z   Cancelling due to test failure:
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9164601Z ────────────
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9164951Z      Summary [ 257.688s] 1066 tests run: 1065 passed (6 leaky), 1 timed out, 1 skipped
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9165589Z      TIMEOUT [ 240.061s] (1066/1066) spt-daemon::handoff brain_restart_survives_gaplessly_with_fresh_gen_start
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9194215Z error: test run failed
test (self-hosted, Windows, hfenduleam)	Test (nextest)	2026-06-15T15:15:40.9796335Z ##[error]Process completed with exit code 1.


Failure = `spt-daemon::handoff brain_restart_survives_gaplessly_with_fresh_gen_start` **TIMED OUT** (240s) on Windows; 1065/1066 passed (my W0.3 tests green). This is a **flake**, not my change: W0.3 touched only `spt/api` (cmd_bind) + a new spt test — nothing in `spt-daemon::handoff`; the same livehost wiring passed handoff in W0.1 + W0.2 CI. Classic timeout-flake shape (shared-runner load, "6 leaky"). Re-run the failed job.


gh run rerun 27555949485 --failed 2>&1 | tail -3; echo "exit=$?"

Re-run failed Windows job (flake)


Re-run triggered (exit 0). Ping doyle the flake diagnosis + checkpoint the W0.4 B+ spec in commune (it's detailed — must survive a context summary) + reschedule poll.


$OWL send doyle <<'EOF'
[todlando → doyle] a916727 test-windows RED — but it's a FLAKE, not W0.3. Diagnosed:
  TIMEOUT [240s] spt-daemon::handoff brain_restart_survives_gaplessly_with_fresh_gen_start (1065/1066 passed, "6 leaky", 1 timed out).
NOT my change: W0.3 touched only spt/api (cmd_bind) + a new spt int — ZERO spt-daemon changes. The handoff/brain-restart test is untouched, and the SAME livehost run_brain wiring passed handoff in W0.1 (1448a0a) + W0.2 (b115929) CI. My W0.3 tests (live_bind_firsthost_e2e + live_firsthost_e2e) both PASSED on the Windows leg. Classic timeout-flake (shared-runner load; the test "ran >60s" then hit the 240s wedge guard).

`gh run rerun 27555949485 --failed` fired — re-running the Windows leg only (linux+n1+traceability already green, reused). Will ping when it greens → W0.3 full PASS. Logging to the flake ledger (handoff brain-restart = timeout-prone on the loaded Win runner). W0.4 B+ build starts on the green. — todlando
EOF
echo sent=$?

Ping doyle flake + rerun


Write

# todlando commune — W0.4 B+ DESIGN SPEC (ruled by doyle; build next)

## DONE (m11-shell-substrate, PR #16)
- W1 (REQ-CONSENT-3) FULL PASS @23e53fc. W0.1 FULL PASS @1448a0a (livehost). W0.2 FULL PASS @b115929 (interim Psyche retired, cmd_listen=pure Relay, brain sole first-host).
- **W0.3 @a916727 — CI conditional, RE-RUNNING**: bind-no-Psyche gap closed (cmd_bind mark-online + manifest param). test-windows RED = FLAKE (spt-daemon::handoff brain_restart timeout 240s, 1065/1066 passed, NOT W0.3 — W0.3 has zero spt-daemon changes; my int tests passed). `gh run rerun 27555949485 --failed` fired. Ping doyle at green → W0.3 full PASS.

## W0.4 = CLOSE-OUT WAVE — doyle-RULED design (gate hardest: moved-int real-brain arc + hammer test + all-churny-writers-off-info.json). Build order: (iii)→(ii)→(i).

### (iii) LOST-UPDATE — RULED **B+** (runtime sidecar; NOT file-lock A, NOT plain B)
- NEW per-perch RUNTIME SIDECAR `<perch>/runtime.json` owns the daemon-churned/transient fields: **last_active_ms + rest_state + dormant_since_ms** (brain-pulse-owned).
- info.json becomes PURE DURABLE IDENTITY (id/adapter/session_id/status), written ONLY by establish + signoff (set_status). Neither file has two cross-process writers → NO race, zero residual, no lock infra. RULE established: daemon-churned fields never in info.json.
- CHOKEPOINT (grep ALL churny writers, miss one = race survives): set_last_active (info.rs:181), set_rest_state (info.rs:201), write_rest (resting.rs:439→set_rest_state) → ALL write the SIDECAR only, not info.json. (The other info.json RMW setters — set_status/set_resources/set_driven_by/set_viewer_count — stay on info.json; only the 3 CHURNY ones move. Re-grep at impl to be sure status's co-writers are non-churny.)
- BACK-COMPAT: readers most_recently_active (last_active) + read_rest (rest_state/dormant_since) read the SIDECAR with FALLBACK to the inline info.json field (old-binary perches pre-migration → no stranding). InfoJson KEEPS the fields (serde) for fallback-read; daemon stops WRITING them inline.
- READ-SKEW (status,rest) across files = cosmetic (rest is sub-state of online; list-display only) — confirm no consumer needs them atomic.
- HAMMER TEST (required): N threads spamming set_last_active+set_rest while one mark_offlines → assert status STAYS offline AND brain reconcile UN-HOSTS (reliably fires under contention). With B+ writers touch different files → proves structural separation, zero clobber. THEN remove long-pulse+settle workarounds from W0.2/W0.3 ints (live_firsthost_e2e, live_bind_firsthost_e2e, livehost unit (e)).

### (ii) READ-ERROR UN-HOST (livehost reconcile stop-side)
Currently `read_info(perch).map(status==online).unwrap_or(false)` → read-FAIL reads as not-online → un-hosts wrongly. FIX discriminator: `if !perch_dir.exists()` → torn down → un-host (legit); else read_info → Some(status≠online) → un-host; None (dir exists, transient read-fail) → LEAVE driver, retry next tick.

### (i) REAL-BRAIN INT RE-POINT (the rung doyle cares most about)
NEW int: bind a Broker + run brainproc::run_brain on a thread (it runs livehost::spawn_live_host since W0.1 → reconcile is the REAL brain's). Real `api bind/listen --type live_agent` → online → REAL brain reconcile hosts (poll psyche perch) → commune drop → brain pulse ingests → DROP+respawn run_brain (brain restart) → boot reconcile RE-HOSTS. MOVE the [int->REQ-DAEMON-1] tag OFF the type-level daemon_e2e ONTO this (daemon_e2e keeps DAEMON-2/4 + hazard tags). Honest close of the M3 type-level false-green.

## GOTCHAS
- Pre-flight `clippy --workspace --all-targets -D warnings`; `git branch --show-current` before commits.
- Windows exe-lock (os error 5) = leftover dev daemons; reap WORKSPACE-SCOPED (`Get-Process spt|Where Path -like "$ws\*"|Stop-Process`), NEVER machine-wide.
- handoff brain_restart test = timeout-flake-prone on loaded Win runner → `gh run rerun <id> --failed`.
- doyle flow: design-gate → build → conditional-PASS-then-CI-green. After W0: W0.5 (perri cutover) → M11 W2 drive/W3 tunnel/W4 Gateway/W5 rig+docs.


<owl_messages>
<owl_message from="doyle" priority="high">[doyle → todlando] CROSS happened — my B+ revision crossed your "A locked + 2 findings". FINDING 1 SETTLES IT: back to A, FINAL. I'm done flip-flopping; here's why this is stable.

The A→B+→A path was driven by enumeration, each step better data: (A) assumed set_rest frequent; (B+) corrected to last_active-sole-high-freq, 2-field split; (A FINAL) your SIX-writer finding. At SIX cross-process info.json RMW setters — status, last_active, rest_state, resources, driven_by, viewer_count, with driven_by+viewer_count ALSO clobbering status — the field-split loses: B+ would leave FIVE rare writers still racing on info.json, so to close the class you'd split 5-6 fields into sidecars (a big perch-record restructure + migration), vs A's ONE mutate_info funnel + lock. At six writers the lock is the clean class-fix; the split was only attractive at 1-2 fields. A, final. No more flips — the six-writer count is stable data, nothing further would move it.

mutate_info FUNNEL — APPROVED, and it's the RIGHT design: one private mutate_info(perch, |rec|{...}) = lock → read_info → mutate → write(tmp+rename) → RAII release; the 6 setters become thin wrappers. That STRUCTURALLY solves my "miss one setter" concern (single chokepoint, can't miss one, and setter #7 in future is forced through it). Better than grep-all-sites. ✓

FINDING 2 (lock primitive) — RULING: fs2. This is the ONE place I overrule your hand-roll lean, and it's deliberate: the lock IS the correctness fix. A subtle hand-rolled file-locking bug would SILENTLY re-open the exact race we're closing — and the hammer test only catches it if it happens to hit the window. fs2 is cargo's own locking dep (maximally vetted), safe API, kills the cross-platform FFI footgun I warned about. proc.rs/ADR-0001 hand-rolls SIMPLE FFI (OpenProcess); advisory file-locking with the rename-sentinel subtlety (below) is exactly where a vetted primitive earns one dep. One cargo-blessed dep for a correctness-critical lock = the right trade. (If there's a standing hard no-new-deps rule I'm unaware of, fall back to hand-roll — but ONLY with the sentinel constraint + both-platform hammer coverage nailed.)

HARD CONSTRAINT either way — THE footgun: lock a STABLE sentinel file <perch>/.info.lock (created once, NEVER renamed), NOT info.json itself. flock/LockFileEx lock the INODE; info.json is replaced by tmp+rename (new inode every write), so a lock on info.json's inode does NOT serialize across a rename — a second writer can lock the old unlinked inode, read STALE, and clobber. Locking the stable .info.lock sentinel (never renamed) is what actually serializes the RMW. fs2 on the sentinel fd. Confirm this — it's the difference between a real lock and a fake one.

HAMMER TEST: N threads spamming the rare+frequent setters while one mark_offlines → assert final status==offline AND the brain reconcile UN-HOSTS (un-host reliably fires under contention). Real assertion, not no-panic. With A+sentinel it should be airtight by construction; the test proves it.

So W0.4 FINAL: (iii) = A (mutate_info funnel + fs2 lock on stable .info.lock sentinel, all 6 setters routed, hammer test) + (ii) read-error un-host + (i) real-brain int re-point (MOVE the tag). Write it on the a916727 green (test-linux green, windows pending → W0.3 closes any moment — ping me). I gate the impl hardest: the sentinel-not-info.json lock, all-6-setters-funneled, the hammer test asserting un-host-fires, and the moved-int real-brain arc. Go.</owl_message>
</owl_messages>

[OWL SYSTEM - HIGHEST PRIORITY] You have received high-priority owl messages above. STOP your current task and acknowledge each high-priority message BEFORE continuing with any tool use. If you are about to spawn subagent(s), run them in the background so you remain available for incoming messages.


File created successfully at: .claude\todlando-commune.md (file state is current in your context — no need to Read it back)

# todlando commune — W0.4 B+ DESIGN SPEC (ruled by doyle; build next)

## DONE (m11-shell-substrate, PR #16)
- W1 (REQ-CONSENT-3) FULL PASS @23e53fc. W0.1 FULL PASS @1448a0a (livehost). W0.2 FULL PASS @b115929 (interim Psyche retired, cmd_listen=pure Relay, brain sole first-host).
- **W0.3 @a916727 — CI conditional, RE-RUNNING**: bind-no-Psyche gap closed (cmd_bind mark-online + manifest param). test-windows RED = FLAKE (spt-daemon::handoff brain_restart timeout 240s, 1065/1066 passed, NOT W0.3 — W0.3 has zero spt-daemon changes; my int tests passed). `gh run rerun 27555949485 --failed` fired. Ping doyle at green → W0.3 full PASS.

## W0.4 = CLOSE-OUT WAVE — doyle-RULED design (gate hardest: moved-int real-brain arc + hammer test + all-churny-writers-off-info.json). Build order: (iii)→(ii)→(i).

### (iii) LOST-UPDATE — RULED **B+** (runtime sidecar; NOT file-lock A, NOT plain B)
- NEW per-perch RUNTIME SIDECAR `<perch>/runtime.json` owns the daemon-churned/transient fields: **last_active_ms + rest_state + dormant_since_ms** (brain-pulse-owned).
- info.json becomes PURE DURABLE IDENTITY (id/adapter/session_id/status), written ONLY by establish + signoff (set_status). Neither file has two cross-process writers → NO race, zero residual, no lock infra. RULE established: daemon-churned fields never in info.json.
- CHOKEPOINT (grep ALL churny writers, miss one = race survives): set_last_active (info.rs:181), set_rest_state (info.rs:201), write_rest (resting.rs:439→set_rest_state) → ALL write the SIDECAR only, not info.json. (The other info.json RMW setters — set_status/set_resources/set_driven_by/set_viewer_count — stay on info.json; only the 3 CHURNY ones move. Re-grep at impl to be sure status's co-writers are non-churny.)
- BACK-COMPAT: readers most_recently_active (last_active) + read_rest (rest_state/dormant_since) read the SIDECAR with FALLBACK to the inline info.json field (old-binary perches pre-migration → no stranding). InfoJson KEEPS the fields (serde) for fallback-read; daemon stops WRITING them inline.
- READ-SKEW (status,rest) across files = cosmetic (rest is sub-state of online; list-display only) — confirm no consumer needs them atomic.
- HAMMER TEST (required): N threads spamming set_last_active+set_rest while one mark_offlines → assert status STAYS offline AND brain reconcile UN-HOSTS (reliably fires under contention). With B+ writers touch different files → proves structural separation, zero clobber. THEN remove long-pulse+settle workarounds from W0.2/W0.3 ints (live_firsthost_e2e, live_bind_firsthost_e2e, livehost unit (e)).

### (ii) READ-ERROR UN-HOST (livehost reconcile stop-side)
Currently `read_info(perch).map(status==online).unwrap_or(false)` → read-FAIL reads as not-online → un-hosts wrongly. FIX discriminator: `if !perch_dir.exists()` → torn down → un-host (legit); else read_info → Some(status≠online) → un-host; None (dir exists, transient read-fail) → LEAVE driver, retry next tick.

### (i) REAL-BRAIN INT RE-POINT (the rung doyle cares most about)
NEW int: bind a Broker + run brainproc::run_brain on a thread (it runs livehost::spawn_live_host since W0.1 → reconcile is the REAL brain's). Real `api bind/listen --type live_agent` → online → REAL brain reconcile hosts (poll psyche perch) → commune drop → brain pulse ingests → DROP+respawn run_brain (brain restart) → boot reconcile RE-HOSTS. MOVE the [int->REQ-DAEMON-1] tag OFF the type-level daemon_e2e ONTO this (daemon_e2e keeps DAEMON-2/4 + hazard tags). Honest close of the M3 type-level false-green.

## GOTCHAS
- Pre-flight `clippy --workspace --all-targets -D warnings`; `git branch --show-current` before commits.
- Windows exe-lock (os error 5) = leftover dev daemons; reap WORKSPACE-SCOPED (`Get-Process spt|Where Path -like "$ws\*"|Stop-Process`), NEVER machine-wide.
- handoff brain_restart test = timeout-flake-prone on loaded Win runner → `gh run rerun <id> --failed`.
- doyle flow: design-gate → build → conditional-PASS-then-CI-green. After W0: W0.5 (perri cutover) → M11 W2 drive/W3 tunnel/W4 Gateway/W5 rig+docs.


(iii) RULED **A, FINAL** — the SIX-writer finding settles it (B+ would leave 5 rare writers racing; splitting 5-6 fields >> A's one `mutate_info` funnel + lock). No more flips — six is stable data. **mutate_info funnel approved**, **fs2** for the lock (overrules my hand-roll — the lock IS the correctness fix; a hand-rolled bug silently re-opens the race). **Critical footgun caught by doyle**: lock a STABLE `<perch>/.info.lock` sentinel (never renamed), NOT info.json — flock/LockFileEx lock the *inode*, and info.json is tmp+rename (new inode each write), so locking it doesn't serialize across renames. Ack + check CI re-run + fix the commune to A.


Bash

$OWL send doyle <<'EOF'
[todlando → doyle] (iii) = A FINAL — accepted, no more flips (six cross-process RMW writers is stable data; the field-split only won at 1-2 fields). And the SENTINEL footgun is the load-bearing catch — confirming I've got it EXACTLY:

LOCK THE STABLE SENTINEL, NOT info.json: flock/LockFileEx lock the INODE. info.json is replaced by tmp-write+atomic-rename every write → a NEW inode each time. So a lock taken on info.json's fd serializes nothing across a rename — writer B opens+locks the OLD (now-unlinked) inode, reads STALE, and clobbers writer A's rename. A FAKE lock. FIX: mutate_info locks a STABLE `<perch>/.info.lock` sentinel (created once via OpenOptions create, NEVER renamed/removed) — that inode is constant, so all writers serialize on it. The lock guards the WHOLE RMW (acquire → read_info → mutate → write info.json via tmp+rename → RAII release). Got it; this is THE difference between a real and a fake lock.

mutate_info(perch, |rec|{...}) FUNNEL: lock sentinel → read_info → closure mutates rec → write_info(tmp+rename) → drop releases. All SIX setters (set_status/set_last_active/set_rest_state/set_resources/set_driven_by/set_viewer_count) become one-line wrappers over it. Single chokepoint — setter #7 is forced through it too. READERS stay lock-free (read_info untouched; tmp+rename already gives a complete old-or-new record).

LOCK PRIMITIVE = fs2: no standing no-new-deps rule I'm aware of (project clean-rooms but takes deps — iroh, serde, etc.). fs2 = cargo's own, vetted; FileExt::lock_exclusive on the sentinel fd, auto-release on fd drop/process-exit (no stale reaping). Adding it to spt-store. If a deps gate (or you) vetoes, I fall back to hand-roll flock/LockFileEx on the SAME sentinel + both-platform hammer coverage — but lean fs2 per your ruling.

HAMMER TEST: N threads spamming set_last_active+set_rest (+ a driven_by/viewer_count for good measure) while one mark_offlines → assert final status==offline AND brain reconcile UN-HOSTS (reliably fires under contention). Real assertion. With A+sentinel: airtight by construction, the test proves it.

W0.4 FINAL build order: (iii) A [mutate_info+fs2+sentinel, 6 setters, hammer] → (ii) read-error un-host [perch-dir-exists discriminator] → (i) real-brain int re-point [Broker+run_brain thread, full arc, MOVE the tag off daemon_e2e]. a916727 windows re-running (flake) → write on the green. Correcting my commune B+→A. — todlando
EOF
echo sent=$?

Ack A FINAL + confirm sentinel insight


gh pr checks 16 2>&1 | grep -iE "test \(self-hosted, Windows"; echo "rollup:"; gh pr view 16 --json statusCheckRollup --jq '[.statusCheckRollup[]|select(.conclusion!=null)|.conclusion]|unique' 2>&1

Check a916727 windows re-run status


test (self-hosted, Windows, hfenduleam)	pending	0	https://github.com/SaberMage/spt-core/actions/runs/27555949485/job/81457178614
rollup:
["","SUCCESS"]


Windows re-run pending → W0.3 closes on its green. Fix the commune (iii) B+→A FINAL (it's the build spec).


Edit

### (iii) LOST-UPDATE — RULED **B+** (runtime sidecar; NOT file-lock A, NOT plain B)
- NEW per-perch RUNTIME SIDECAR `<perch>/runtime.json` owns the daemon-churned/transient fields: **last_active_ms + rest_state + dormant_since_ms** (brain-pulse-owned).
- info.json becomes PURE DURABLE IDENTITY (id/adapter/session_id/status), written ONLY by establish + signoff (set_status). Neither file has two cross-process writers → NO race, zero residual, no lock infra. RULE established: daemon-churned fields never in info.json.
- CHOKEPOINT (grep ALL churny writers, miss one = race survives): set_last_active (info.rs:181), set_rest_state (info.rs:201), write_rest (resting.rs:439→set_rest_state) → ALL write the SIDECAR only, not info.json. (The other info.json RMW setters — set_status/set_resources/set_driven_by/set_viewer_count — stay on info.json; only the 3 CHURNY ones move. Re-grep at impl to be sure status's co-writers are non-churny.)
- BACK-COMPAT: readers most_recently_active (last_active) + read_rest (rest_state/dormant_since) read the SIDECAR with FALLBACK to the inline info.json field (old-binary perches pre-migration → no stranding). InfoJson KEEPS the fields (serde) for fallback-read; daemon stops WRITING them inline.
- READ-SKEW (status,rest) across files = cosmetic (rest is sub-state of online; list-display only) — confirm no consumer needs them atomic.
- HAMMER TEST (required): N threads spamming set_last_active+set_rest while one mark_offlines → assert status STAYS offline AND brain reconcile UN-HOSTS (reliably fires under contention). With B+ writers touch different files → proves structural separation, zero clobber. THEN remove long-pulse+settle workarounds from W0.2/W0.3 ints (live_firsthost_e2e, live_bind_firsthost_e2e, livehost unit (e)).

### (iii) LOST-UPDATE — RULED **A, FINAL** (per-perch file-lock + mutate_info funnel). [Design flipped A→B+→A FINAL on the SIX-writer finding; six = stable, no more flips. B+ rejected: 6 cross-process RMW writers means a field-split would leave 5 racing → splitting 5-6 fields >> one lock.]
- SIX info.json RMW setters ALL clobber status: set_status (info.rs:165), set_last_active (181), set_rest_state (201), set_resources (222), set_driven_by (240), set_viewer_count (256). set_driven_by + set_viewer_count are ALSO brain/dispatch writers.
- FIX: ONE private `mutate_info(perch, |rec|{...})` = lock → read_info → mutate → write_info(tmp+rename) → RAII release. The 6 setters become one-line wrappers. Single chokepoint (can't miss one; setter #7 forced through it).
- **LOCK THE STABLE SENTINEL `<perch>/.info.lock` (created once, NEVER renamed/removed) — NOT info.json.** CRITICAL (doyle's catch): flock/LockFileEx lock the INODE; info.json is tmp-write+atomic-rename = NEW inode each write → a lock on info.json's fd does NOT serialize across renames (writer B locks the old unlinked inode, reads stale, clobbers). The stable sentinel inode is constant → all writers serialize. fs2 FileExt::lock_exclusive on the sentinel fd; auto-release on fd drop/process-exit (no stale reaping).
- LOCK PRIMITIVE = **fs2** (doyle ruled; overrides my hand-roll lean — the lock IS the correctness fix, a hand-rolled bug silently re-opens the race; fs2 = cargo's own vetted dep). Add to spt-store/Cargo.toml. Fallback (only if a deps gate vetoes): hand-roll flock/LockFileEx on the SAME sentinel + both-platform hammer coverage.
- READERS STAY LOCK-FREE: read_info untouched (tmp+rename already gives a complete record). Lock serializes WRITERS only.
- HAMMER TEST (required): N threads spamming set_last_active+set_rest (+driven_by/viewer_count) while one mark_offlines → assert final status==offline AND brain reconcile UN-HOSTS (reliably fires under contention). Real assertion, not no-panic. THEN remove long-pulse+settle workarounds from W0.2/W0.3 ints (live_firsthost_e2e, live_bind_firsthost_e2e, livehost unit (e)) — race gone.


<tool_use_error>File does not exist. Note: your current working directory is C:\Users\decid\Documents\projects\spt-core.</tool_use_error>

Error: File does not exist. Note: your current working directory is C:\Users\decid\Documents\projects\spt-core.


Commune was ingested (Psyche has the B+ version) + file auto-deleted. Drop a correction commune (B+→A FINAL) so the Psyche updates.


Write

# todlando commune — CORRECTION: W0.4 (iii) is A FINAL, not B+

CORRECTION to my last commune: doyle's (iii) ruling FLIPPED B+→**A FINAL** (crossed messages). The SIX-writer finding settled it permanently (no more flips — six cross-process info.json RMW setters is stable data).

## W0.4 (iii) = OPTION A FINAL (per-perch file-lock + mutate_info funnel) — NOT the B+ sidecar
- SIX info.json RMW setters ALL clobber status: set_status (info.rs:165), set_last_active (181), set_rest_state (201), set_resources (222), set_driven_by (240), set_viewer_count (256). At six writers a field-split (B+) would leave 5 racing → A's one lock wins.
- FIX: ONE private `mutate_info(perch, |rec|{...})` = lock → read_info → mutate → write_info(tmp+rename) → RAII release. All 6 setters become one-line wrappers. Single chokepoint.
- **LOCK A STABLE SENTINEL `<perch>/.info.lock` (created once, NEVER renamed) — NOT info.json.** doyle's load-bearing catch: flock/LockFileEx lock the INODE; info.json is tmp+rename = new inode each write, so locking it serializes NOTHING across renames (fake lock — writer B locks the old unlinked inode, reads stale, clobbers). The stable sentinel inode is constant → real serialization.
- LOCK = **fs2** (doyle ruled, overrides my hand-roll lean; cargo's own vetted dep; FileExt::lock_exclusive on the sentinel fd; auto-release on drop/exit). Add to spt-store/Cargo.toml. Fallback only if deps-gate veto: hand-roll flock/LockFileEx on the SAME sentinel + both-platform coverage.
- READERS stay LOCK-FREE (read_info untouched).
- HAMMER TEST: N threads spamming set_last_active+set_rest(+driven_by/viewer_count) while one mark_offlines → assert final status==offline AND brain reconcile UN-HOSTS under contention. Then remove the long-pulse+settle workarounds from live_firsthost_e2e / live_bind_firsthost_e2e / livehost unit (e).

(ii) read-error un-host + (i) real-brain int re-point UNCHANGED from prior commune. Build order: (iii)→(ii)→(i). Write on a916727 green (windows re-running, flake). doyle gates hardest: sentinel-not-info.json, all-6-funneled, hammer asserts un-host-fires, moved-int real-brain arc.


# todlando commune — CORRECTION: W0.4 (iii) is A FINAL, not B+

CORRECTION to my last commune: doyle's (iii) ruling FLIPPED B+→**A FINAL** (crossed messages). The SIX-writer finding settled it permanently (no more flips — six cross-process info.json RMW setters is stable data).

## W0.4 (iii) = OPTION A FINAL (per-perch file-lock + mutate_info funnel) — NOT the B+ sidecar
- SIX info.json RMW setters ALL clobber status: set_status (info.rs:165), set_last_active (181), set_rest_state (201), set_resources (222), set_driven_by (240), set_viewer_count (256). At six writers a field-split (B+) would leave 5 racing → A's one lock wins.
- FIX: ONE private `mutate_info(perch, |rec|{...})` = lock → read_info → mutate → write_info(tmp+rename) → RAII release. All 6 setters become one-line wrappers. Single chokepoint.
- **LOCK A STABLE SENTINEL `<perch>/.info.lock` (created once, NEVER renamed) — NOT info.json.** doyle's load-bearing catch: flock/LockFileEx lock the INODE; info.json is tmp+rename = new inode each write, so locking it serializes NOTHING across renames (fake lock — writer B locks the old unlinked inode, reads stale, clobbers). The stable sentinel inode is constant → real serialization.
- LOCK = **fs2** (doyle ruled, overrides my hand-roll lean; cargo's own vetted dep; FileExt::lock_exclusive on the sentinel fd; auto-release on drop/exit). Add to spt-store/Cargo.toml. Fallback only if deps-gate veto: hand-roll flock/LockFileEx on the SAME sentinel + both-platform coverage.
- READERS stay LOCK-FREE (read_info untouched).
- HAMMER TEST: N threads spamming set_last_active+set_rest(+driven_by/viewer_count) while one mark_offlines → assert final status==offline AND brain reconcile UN-HOSTS under contention. Then remove the long-pulse+settle workarounds from live_firsthost_e2e / live_bind_firsthost_e2e / livehost unit (e).

(ii) read-error un-host + (i) real-brain int re-point UNCHANGED from prior commune. Build order: (iii)→(ii)→(i). Write on a916727 green (windows re-running, flake). doyle gates hardest: sentinel-not-info.json, all-6-funneled, hammer asserts un-host-fires, moved-int real-brain arc.


Correction commune dropped (Psyche now has A FINAL). Windows re-run pending → W0.3 closes on its green. Reschedule poll.


ScheduleWakeup

Polling PR #16 run 27555949485 windows re-run (W0.3 a916727, flake retry) for green to ping doyle → W0.3 full PASS → then build W0.4 (A FINAL: mutate_info+fs2 sentinel lock, read-error un-host, real-brain int).

Prompt: <<autonomous-loop-dynamic>>


Next wakeup scheduled for 08:26:00 (in 281s). Nothing more to do this turn — the harness re-invokes you when the wakeup fires or a task-notification arrives.


**W0.4 design fully ruled — A FINAL.** doyle's path A→B+→A FINAL converged on my six-RMW-writer finding (a field-split would leave 5 writers racing; one lock wins). Locked:
- `mutate_info(perch, |rec|{...})` funnel — all 6 setters routed through one lock→read→mutate→write→release chokepoint
- **fs2** lock on a **stable `.info.lock` sentinel** (never renamed) — doyle's load-bearing catch: locking info.json's inode is a fake lock since tmp+rename makes a new inode each write
- readers stay lock-free; hammer test asserts un-host fires under contention
- then (ii) read-error un-host + (i) real-brain int re-point (move the tag, kill the M3 false-green)

W0.3 test-windows was a **flake** (`handoff brain_restart` 240s timeout, 1065/1066 passed, zero spt-daemon changes in W0.3) — re-run fired, pending. Correction commune dropped (B+→A FINAL spec preserved).

On the re-run green: ping doyle → W0.3 full PASS → build W0.4 (the close-out that makes REQ-DAEMON-1 honestly complete). Polling.


<task-notification>
<task-id>bmby1p3hm</task-id>
Monitor event: "« spt event »"
<event><EVENT-PART seq="1/10" id="d95406c0" type="msg" from="doyle">[doyle → todlando] STOP — my &quot;A FINAL&quot; crossed your B+ build. RECONCILING DECISIVELY, and the answer is B+ (you're already on it), NOT A. I over-read the six-writer finding. Here's the correct read, and it's STABLE — I'm done flipping.

WHY NOT A (retracting my last msg): I treated &quot;SIX info.j</EVENT-PART>
<EVENT-PART seq="2/10" id="d95406c0">son RMW writers&quot; as &quot;six fields needing a lock.&quot; Wrong frame. The right frame: of those six, FIVE are TRANSIENT/runtime state — last_active_ms, rest_state, dormant_since_ms, AND (the two your FINDING 1 surfaced that your B+ plan missed) driven_by + viewer_count. Only status + resources are DURABLE IDENTITY. So the six-writer c</EVENT-PART>
<EVENT-PART seq="3/10" id="d95406c0">ount doesn't argue for a lock — it argues for moving ALL FIVE transient fields out of info.json. B+ EXTENDED is the clean class-fix; the lock was solving a problem that the durable/runtime SPLIT already dissolves. No fs2, no mutate_info funnel, no FFI footgun. Lock-free wins.

B+ FINAL SCOPE (extend your plan): runtime.json owns the FI</EVENT-PART>
<EVENT-PART seq="4/10" id="d95406c0">VE transient fields — last_active_ms + rest_state + dormant_since_ms + **driven_by + viewer_count** (you had the first three; add the last two — they're runtime-transient exactly like rest_state, and FINDING 1 showed they clobber status). info.json = PURE durable identity: id / adapter / session_id / status / **resources** (the blurb is du</EVENT-PART>
<EVENT-PART seq="5/10" id="d95406c0">rable, stays). After the move, the ONLY info.json writers are set_status (establish/signoff) + set_resources (rare blurb edit).

THE LONE RESIDUAL: set_resources-vs-status — vanishing (two rare events in a µs window; resources is durable so it legitimately stays in info.json). ACCEPT it, document it (pre-existing, not W0-introduced, </EVENT-PART>
<EVENT-PART seq="6/10" id="d95406c0">negligible). Do NOT add a lock for it — that's the A over-engineering I just talked myself out of. If it ever proves real, set_resources alone takes a one-off guard then; not now.

CONSTRAINTS (same as before + the two new fields):
- driven_by/viewer_count are read-skew-safe to split (api driven-by = local/remote hint; viewer_count </EVENT-PART>
<EVENT-PART seq="7/10" id="d95406c0">= display) — confirm their consumers don't need atomic (status, X). They don't (cosmetic, like last_active).
- Grep ALL writers of the five transient fields → ALL go to runtime.json; info.json written ONLY by set_status + set_resources. The grep is the guarantee.
- Back-compat fallback reads (sidecar-or-inline) for old-binary perches</EVENT-PART>
<EVENT-PART seq="8/10" id="d95406c0"> — for all five fields.
- Hammer test: spam the transient setters (incl driven_by/viewer_count) while one mark_offlines → status stays offline + reconcile UN-HOSTS. Different files → zero clobber by construction
...(truncated)</event>
</task-notification>


<owl_reachability_notice>
You have an active owl perch. When spawning subagents or doing work, use run_in_background: true so you stay reachable for incoming messages.
</owl_reachability_notice>


CAVEMAN MODE ACTIVE (full). Drop articles/filler/pleasantries/hedging. Fragments OK. Code/commits/security: write normal.


doyle FINAL (reconciled): **B+ EXTENDED, not A.** Correct frame — of the 6 RMW setters, **five are transient** (last_active_ms, rest_state, dormant_since_ms, **driven_by, viewer_count**), only status + resources are durable identity. So the six-writer count argues for moving all 5 transient fields out, not a lock. Lock-free wins (no fs2, no funnel, no FFI footgun). Message truncated at 8/10. Ack precisely to lock alignment + request the tail + correct the commune.


Bash

$OWL send doyle <<'EOF'
[todlando → doyle] B+ EXTENDED = FINAL — locking it, building to THIS (your msg truncated at 8/10; send the tail if 9-10 add constraints, but the scope is clear). Restating precisely so we're aligned and I do NOT re-open:

RUNTIME SIDECAR <perch>/runtime.json owns the FIVE TRANSIENT/runtime fields:
  last_active_ms, rest_state, dormant_since_ms, driven_by, viewer_count.
info.json = PURE DURABLE IDENTITY: id, adapter, session_id, status, resources (blurb is durable — stays). After the move the ONLY info.json writers are set_status (establish/signoff) + set_resources (rare blurb edit).

WHY this beats A (your corrected read, agreed): 5 of the 6 RMW writers are transient → the durable/runtime SPLIT dissolves the class structurally. No lock, no fs2 dep, no sentinel-inode footgun. The split is the right design AND lock-free.

LONE RESIDUAL: set_resources-vs-status — both rare + durable, µs window, PRE-EXISTING (not W0-introduced). ACCEPT + document. NO lock (that's the A over-engineering). If ever real, set_resources alone gets a one-off guard later.

MY BUILD to your constraints:
- GREP-GUARANTEE: grep ALL writers of the 5 transient fields → ALL route to runtime.json; info.json written ONLY by set_status + set_resources. set_last_active/set_rest_state/write_rest already found; will grep set_driven_by + set_viewer_count writers + any direct rec.<field> writes. The grep is the proof none stays on info.json.
- BACK-COMPAT: readers of all 5 fields read runtime.json with FALLBACK to the inline info.json field (old-binary perches). InfoJson keeps the 5 fields (serde) for fallback-read; daemon stops writing them inline.
- READ-SKEW confirms: driven_by (local/remote drive hint) + viewer_count (display) consumers don't need atomic (status,X) — cosmetic, like last_active/rest. Will verify each consumer.
- HAMMER TEST: N threads spamming the transient setters (incl driven_by + viewer_count) while one mark_offlines → assert status STAYS offline AND brain reconcile UN-HOSTS under contention. Different files → zero clobber by construction; the test proves it. Then strip the long-pulse+settle workarounds from live_firsthost_e2e / live_bind_firsthost_e2e / livehost unit (e).

Build order: (iii) B+ext sidecar+hammer → (ii) read-error un-host → (i) real-brain int re-point (MOVE tag). Correcting my commune A→B+ext. Writing on a916727 green (windows re-run pending, flake). — todlando
EOF
echo sent=$?

Ack B+ extended FINAL + request tail


➜ SENT:doyle
sent=0


gh pr checks 16 2>&1 | grep -iE "test \(self-hosted, Windows"; gh pr view 16 --json statusCheckRollup --jq '[.statusCheckRollup[]|select(.conclusion!=null)|.conclusion]|unique' 2>&1

Check a916727 windows re-run


test (self-hosted, Windows, hfenduleam)	pending	0	https://github.com/SaberMage/spt-core/actions/runs/27555949485/job/81457178614
["","SUCCESS"]


Windows re-run still pending. Correct the commune (A→B+ extended FINAL) — overwrite with the locked spec.