board hygiene tail: post-merge governance for PR #372

Per CLAUDE.md Mandatory Board-Hygiene Rule, post-merge updates for the
canonical board state. All 5 files updated:

PR_ARC_INVENTORY.md: PREPEND PR #372 entry (Added / Locked / Deferred /
Docs / Confidence sections per format) above #366.

LATEST_STATE.md: PREPEND row for PR #372 in Recently Shipped table;
update Last-updated metadata line with PR #372 summary and the three
major findings (dual CausalEdge64, p64 drift origin, three-zone hot
path); add Contract Inventory section for the dual CausalEdge64 types.

EPIPHANIES.md: PREPEND E-META-7 dated 2026-05-14 covering the three
coupled findings — dual CausalEdge64 types, p64 drift origin pinpointed
at convergence.rs:18-22 #[allow(unused_imports)] annotation, three-zone
hot-path mental model.

TYPE_DUPLICATION_MAP.md: APPEND section #13 documenting CausalEdge64 as
2 distinct types in workspace (NOT a candidate for direct dedup; they
represent different cognitive operations). Includes the 8-channel to
SPO transcoding mapping (Option R-3) and the drift-origin reference.

STATUS_BOARD.md: APPEND causaledge64-mailbox-rename-soa-v1 plan section
with 13 D-CE64-MB-* / D-SPRINT-10-* spec-shipped rows + 15 sprint-11
implementation rows (all Queued, with per-row blockers cited) + 4
user-ratification gates (CSI-1 + OQ-1/3/5) + 6 reunification track
items (D-REUNIFY-1..6) tracking the sprint-12+ Think carrier struct
unification arc.

D-REUNIFY-1 (acknowledge dual CausalEdge64 in board files) is marked
Shipped by this very commit.

https://claude.ai/code/session_01UwJuKqP828qyX1VkLgGJFS

Author: claude

.claude/board/EPIPHANIES.md

@@ -65,6 +65,34 @@ stay as historical references.
 
 ## Entries (reverse chronological)
 
+## 2026-05-14 — E-META-7 (FINDING): dual `CausalEdge64` types in workspace + p64 drift origin pinpointed + three-zone hot-path model
+
+**Status:** FINDING (verified 2026-05-14 against shipped source; recorded in PR #372 merge commit `9fa206d`).
+
+Three coupled findings surfaced during sprint-10 meta-review + post-research correction of the hot-path mental model.
+
+**1. Dual `CausalEdge64` types** (not in `docs/TYPE_DUPLICATION_MAP.md` prior to this entry):
+- `causal_edge::CausalEdge64` at `crates/causal-edge/src/edge.rs:60` — SPO-palette layout (S/P/O palette indices + NARS f/c + Pearl 2³ mask + direction + inference type + plasticity + temporal)
+- `thinking_engine::layered::CausalEdge64` at `crates/thinking-engine/src/layered.rs:45` — 8-channel cascade (BECOMES / CAUSES / SUPPORTS / REFINES / GROUNDS / ABSTRACTS / RELATES / CONTRADICTS, each 1 byte)
+
+Same name, different bit semantics, different consumers. Reunification path = Option R-3 (transcode 8-channel → SPO at L3 commit). See `.claude/knowledge/causal-edge-64-spo-variant.md` + `.claude/knowledge/causal-edge-64-thinking-engine-variant.md` + `.claude/knowledge/causal-edge-64-synergies-and-pr-trajectory.md`.
+
+**2. p64 drift origin pinpointed.** `crates/lance-graph-planner/src/cache/convergence.rs:18-22`:
+```rust
+#[allow(unused_imports)] // CausalEdge64 intended for hot-path convergence wiring
+use super::nars_engine::{CausalEdge64, SpoHead, MASK_SPO};
+```
+The convergence wiring was started and never finished. The `nars_engine::CausalEdge64` re-export is the SPO-palette variant; the thinking-engine 8-channel variant was reinvented locally at `crates/thinking-engine/src/layered.rs:45` instead of imported here. **This `#[allow(unused_imports)]` annotation is the smoking gun** for where the dual-variant drift formalized.
+
+**3. Three-zone hot-path mental model** (corrects "AriGraph reads = µs cold-path joins" framing):
+- **Zone-1** (cycle-speed, 200-500 ns): thinking-engine MatVec → top-k atoms → `emit_causal_edges` 8-channel emission; AriGraph `entity_index: HashMap<String, Vec<usize>>` lookup is O(1) ~20-200 ns (NOT cold).
+- **Zone-2** (SPO-as-3D-vector ANN, 20-1200 µs): blasgraph + neighborhood cascade HEEL → HIP → TWIG → LEAF via `zeckf64()`.
+- **Zone-3** (DataFusion cold path, >1 ms): `lance-graph-planner` columnar joins for offline analytics; NOT touched by cognitive dispatch.
+
+Cross-ref: `.claude/knowledge/cognitive-shader-driver-thinking-engine-reunification.md` (5-step reunification plan); `.claude/knowledge/splat-shader-rayon-struct-method-vision.md` (sprint-12+ 5-sprint arc).
+
+---
+
 ## 2026-05-14 — E-CE64-MB-1..10: CausalEdge64-mailbox + sparse-rename composition (10 epiphanies)
 
 10 epiphanies from the recursive-fresh-eyes architectural pass culminating in `.claude/plans/causaledge64-mailbox-rename-soa-v1.md`. Branch: `claude/resolve-pr-369-conflicts-ozMXd`. PR #370 in flight. Each epiphany is composition, not invention — every piece had existing plan/spec authoring before this session.

.claude/board/LATEST_STATE.md

@@ -2,7 +2,7 @@
 
 > **Auto-injected at session start via SessionStart hook.**
 > Updated after every merged PR.
-> **Last updated:** 2026-05-13 (PR #366 merged: sprint-7 7-worker implementation wave for the sprint-5/6 specs + AuditSink trait unification, ~5 KLOC across 5 crates +2 new (`lance-graph-supervisor`, `lance-graph-consumer-conformance`), ~70 new tests, workspace clippy --tests --no-deps -D warnings exits 0; Opus meta verdict 4A/2B/1B-minus; OQ-7-1/2/3 all locked pre-merge; `UnifiedAuditSink` D-SDR-4 placeholder dropped, all sinks unified on `AuditSink` trait; `UnifiedBridge::with_jsonl_audit()` ergonomic constructor added for MedCare-rs sprint-2 item 5. **Adjacent landings (same day):** MedCare-rs sprint-1 10-PR sweep (#113-#122) including E1-1 OQ-3 direct migration (6 RoleGroups) consuming our `0d725d4` decision. MedCare-rs sprint-2 (5 PRs) is queued on user "go" — item 5 consumes this PR's new constructor. Prior same-day: PR #365 (13 sprint-5/6 specs + meta). Prior: PR #364 (D-SDR-3/4/5 + sprint-log-4 governance + sprint-5-9 roadmap + codex P1/P2 fixes). lance-graph #364 ships D-SDR-3/4/5 + sprint-log-4 governance + sprint-5-9 roadmap + codex P1/P2 surgical fixes (OwlIdentity 3-byte canonical, UnifiedAuditEvent 26 bytes, OgitFamilyTable sparse `HashMap<u16, FamilyEntry>`, audit super_domain via AuditChain). MedCare-rs#112 (PR-B) wires `UnifiedBridge<MedcareBridge>` + medcare-rbac + medcare-realtime substrate (+2963 LOC, 17 files, §73 SGB V + BMV-Ä §57 + BtM regulatory tests). smb-office-rs#31 (PR-C) wires `UnifiedBridge<OgitBridge>` (+111 LOC). ndarray#142 ships VBMI gate for `permute_bytes` (P0 SIGILL fix on Skylake-X / Cascade Lake / Ice Lake-SP) + Inf clamp for `simd_exp_f32`. D-SDR-5 `UnifiedBridge` surface is now consumed end-to-end across MedCare + smb-office. Prior: 2026-05-07 (PR #354). Prior: 2026-05-07 (PR #353). Prior: 2026-05-07 (PR #352). Prior: 2026-05-06 (splat-osint-ingestion-v1 PR 1+2 of 6 in flight). Prior: 2026-04-21 post PR #243.
+> **Last updated:** 2026-05-14 (PR #372 merged: sprint-10 spec sprint, 12-worker CCA2A fleet + Opus meta-review + 8 knowledge docs, governance-only (zero .rs changes), mirrors PR #365 pattern. Sprint-11 implementation wave gated on 5 spec patches + 4 user ratifications: CSI-1 CausalEdge64 bit-reclaim Option, OQ-1 Σ4-Σ5 banding, OQ-3 plasticity granularity, OQ-5 rayon vendor. **Major findings:** (1) dual `CausalEdge64` types in workspace — `causal_edge::CausalEdge64` SPO-palette layout ≠ `thinking_engine::layered::CausalEdge64` 8-channel cascade, same name different semantics, surfaced as duplication entry #13 in TYPE_DUPLICATION_MAP and E-META-7 in EPIPHANIES; (2) p64 drift origin pinpointed at `crates/lance-graph-planner/src/cache/convergence.rs:18-22 #[allow(unused_imports)]` annotation — wiring intended for hot-path convergence never finished; (3) three-zone hot-path mental model corrects prior framing — Zone-1 thinking-engine MatVec 200-500ns + AriGraph entity_index O(1) ~20-200ns is the actual cycle-speed path, not DataFusion. Prior: 2026-05-13 (PR #366 merged: sprint-7 7-worker implementation wave for the sprint-5/6 specs + AuditSink trait unification, ~5 KLOC across 5 crates +2 new (`lance-graph-supervisor`, `lance-graph-consumer-conformance`), ~70 new tests, workspace clippy --tests --no-deps -D warnings exits 0; Opus meta verdict 4A/2B/1B-minus; OQ-7-1/2/3 all locked pre-merge; `UnifiedAuditSink` D-SDR-4 placeholder dropped, all sinks unified on `AuditSink` trait; `UnifiedBridge::with_jsonl_audit()` ergonomic constructor added for MedCare-rs sprint-2 item 5. **Adjacent landings (same day):** MedCare-rs sprint-1 10-PR sweep (#113-#122) including E1-1 OQ-3 direct migration (6 RoleGroups) consuming our `0d725d4` decision. MedCare-rs sprint-2 (5 PRs) is queued on user "go" — item 5 consumes this PR's new constructor. Prior same-day: PR #365 (13 sprint-5/6 specs + meta). Prior: PR #364 (D-SDR-3/4/5 + sprint-log-4 governance + sprint-5-9 roadmap + codex P1/P2 fixes). lance-graph #364 ships D-SDR-3/4/5 + sprint-log-4 governance + sprint-5-9 roadmap + codex P1/P2 surgical fixes (OwlIdentity 3-byte canonical, UnifiedAuditEvent 26 bytes, OgitFamilyTable sparse `HashMap<u16, FamilyEntry>`, audit super_domain via AuditChain). MedCare-rs#112 (PR-B) wires `UnifiedBridge<MedcareBridge>` + medcare-rbac + medcare-realtime substrate (+2963 LOC, 17 files, §73 SGB V + BMV-Ä §57 + BtM regulatory tests). smb-office-rs#31 (PR-C) wires `UnifiedBridge<OgitBridge>` (+111 LOC). ndarray#142 ships VBMI gate for `permute_bytes` (P0 SIGILL fix on Skylake-X / Cascade Lake / Ice Lake-SP) + Inf clamp for `simd_exp_f32`. D-SDR-5 `UnifiedBridge` surface is now consumed end-to-end across MedCare + smb-office. Prior: 2026-05-07 (PR #354). Prior: 2026-05-07 (PR #353). Prior: 2026-05-07 (PR #352). Prior: 2026-05-06 (splat-osint-ingestion-v1 PR 1+2 of 6 in flight). Prior: 2026-04-21 post PR #243.
 >
 > Purpose: prevent new sessions from hallucinating structure that
 > already exists or proposing features already shipped. Read this
@@ -14,6 +14,7 @@
 
 | PR | Merged | Title | What it added |
 |---|---|---|---|
+| **#372** | 2026-05-14 | specs(sprint-10): 12-worker CCA2A fleet + meta-review (governance only) | Sprint-10 spec sprint mirroring PR #365 pattern (specs precede a separate implementation wave). **38 .md files / ~580 KB / zero .rs changes.** 11 PR-ready worker specs (~370 KB) covering par-tile crate apex, CausalEdge64 v2 layout, BindSpace E/F/G/H columns, AriGraph SPO-G + ghost edges + SpoWitnessChain, MailboxSoA + AttentionMaskActor, SigmaTierRouter + banding + plasticity + KernelHandle cache, bevy cull plugin, ndarray Miri completion, sprint-10 execution plan, PR dep graph, unified test plan. Opus meta-review (~28 KB) with sprint grade B+, 6 cross-spec inconsistencies (CSI-1..6), 5 cross-cutting epiphanies (E-META-1..5), sprint-11 spawn decision = NO until 5 spec patches + 4 user ratifications. 8 knowledge docs (~123 KB) documenting: **dual `CausalEdge64` finding** (SPO-palette variant in `causal-edge` crate ≠ 8-channel cascade variant in `thinking-engine` crate, same name different bit semantics); **p64 drift origin** pinpointed at `crates/lance-graph-planner/src/cache/convergence.rs:18-22 #[allow(unused_imports)]`; **three-zone hot-path model** (Zone-1 thinking-engine MatVec 200-500ns + AriGraph entity_index O(1), Zone-2 blasgraph+neighborhood cascade 20-1200µs, Zone-3 DataFusion >1ms); **SPOW tetrahedron + ontology-aware splat vision**; **5-sprint reunification arc** to unify thinking-engine + cognitive-shader-driver SoA. **Deferred:** sprint-11 implementation wave, `Think` carrier struct unification (sprint-12+), splat shader op fleet (sprint-13+), OWL DOLCE / OntologyFilter wiring (sprint-12+), PR-J1-INT4-32D-ATOMS as Wave 0.5 prerequisite. |
 | **#366** | 2026-05-13 | impl(sprint-7): 7-worker implementation wave + AuditSink trait unification | Sprint-7 CCA2A 6-parallel + 1-sequenced + 1-Opus-meta. **~5 KLOC across 5 crates + 2 new** (`lance-graph-supervisor`, `lance-graph-consumer-conformance`). Workers: **S7-W1** `parse_family_registry()` + Healthcare basins `0x10..=0x19` (unblocks MedCare-rs E1-2/E1-3/E1-4 cascade); **S7-W2** `lance-graph-contract/build.rs` codegen (zero-dep preserved; sorted-slice + binary_search, no phf — OQ-2); **S7-W3** ractor supervisor with separate 18-byte `LifecycleAuditEvent` (CC-2) + `SuperDomain::System` exempt (CC-3); **S7-W4** `assert_consumer_conformance` harness (A1-A10); **S7-W5** `CognitiveBridgeGate` trait + `UnifiedBridgeGate<B>` impl; **S7-W6** new `audit_sink/` module (`AuditSink` trait + `JsonlAuditSink` + `LanceAuditSink` + `CompositeSink`) + `audit_verify` CLI + `prev_merkle` field on UnifiedAuditEvent (canonical_bytes still 26 B); **S7-W7** SMB Foundry `0x80..=0x82` vs BSON `0xA0..=0xAD` disjoint slots (OQ-4). **Post-meta AuditSink trait unification** (`bc530a4`): dropped legacy `UnifiedAuditSink` D-SDR-4 placeholder, `UnifiedBridge::audit_sink: Arc<dyn AuditSink>`, added `with_jsonl_audit()` ergonomic constructor (OQ-7-2 + OQ-7-3 locked). **Pre-existing workspace lint debt** cleaned by Sonnet janitor across ~30 files in `lance-graph` core / `bgz-tensor` / planner / nsm (sprint-7 outputs guardrailed). **Opus meta verdict** at `.claude/board/sprint-log-7/meta-review.md`: 4A/2B/1B-minus/0 C/D/F. **Adjacent landings:** MedCare-rs sprint-1 10-PR sweep #113-#122 (E1-1 OQ-3 consumed our `0d725d4` decision; sprint-2 5 PRs queued). |
 | **#365** | 2026-05-13 | specs(sprint-5-6): 13-worker parallel batch + Opus meta review | Governance-only PR. **13 PR-ready specs at `.claude/specs/`** (~300 KB) from a 12-Sonnet-worker + 1-post-meta-Sonnet-worker + 1-Opus-meta-agent parallel batch. Spec grades: 3 A (W2 d3b-jsonl, W5 pr-graph, W12 conformance), 7 B, 2 C (W10 manifest-modules needs §4.3 sorted-slice rewrite; W11 ractor-supervisor needs LifecycleAuditEvent split). 24 KB Opus meta cross-spec review at `.claude/board/sprint-log-5-6/meta-review.md`. 4 blocking OQs (W3 parser entry, W10 phf vs sorted-slice, W6 Role migration, W13 BSON namespace). CCA2A 12+1+1 pattern validated at scale: ~300 KB of PR-ready output in under an hour wall-clock; 3 workers required respawns for permission denials (settings.json patched for `.claude/board/sprint-log-5-6/**`). |
 | **#364** | 2026-05-13 | D-SDR-3/4/5 + sprint-log-4 governance + sprint 5-9 roadmap + codex P1/P2 | Tier-A substrate close: **D-SDR-3** OgitFamilyTable + FamilyEntry codebook (~300 LOC), **D-SDR-4** merkle-chained UnifiedAuditEvent (~460 LOC, AuditMerkleRoot = u64 FNV-1a), **D-SDR-5** authorize_* through Policy::evaluate with audit emission (~300 LOC). **Codex P1 fix** (`3208743`): OwlIdentity widened u8→u16 slot → 3-byte canonical `[family, slot_lo, slot_hi]`; OgitFamilyTable → sparse `HashMap<u16, FamilyEntry>`; UnifiedAuditEvent canonical_bytes 25→26. **Codex P2 fix** (`e23ce89`): emit_audit uses AuditChain.super_domain() instead of static FAMILY_TO_SUPER_DOMAIN. **CI fix** (`a3c753f`): ndarray/hpc-extras opt-in for blake3. Sprint-log-4 governance corpus (12 worker specs + 2 meta reviews) + sprint-5-through-9 roadmap (70 agents = 60W + 10M across 5 sprints, mandatory 12-step plan-read-order in worker prompts). 97/97 callcenter lib tests pass. All 5 CI checks green on `c8176cb`. Adjacent: ndarray#142 (VBMI gate + Inf clamp) merged same day. |
@@ -43,6 +44,12 @@ Types that EXIST — do NOT re-propose them:
 
 **`cognitive-shader-driver` BindSpace substrate (2026-04-24)**: `FingerprintColumns.cycle` is now `Box<[f32]>` (Vsa16kF32 carrier, 16_384 f32 per row = 64 KB) — migrated from `Box<[u64]>` (Binary16K). New constant `FLOATS_PER_VSA = 16_384`. New methods: `set_cycle(&[f32])`, `set_cycle_from_bits(&[u64; 256])` (adapter with `binary16k_to_vsa16k_bipolar` projection), `cycle_row() -> &[f32]`. `write_cycle_fingerprint()` API unchanged (takes `&[u64; 256]`), converts internally. `byte_footprint()` for 1 row = 71_774 bytes. Other three planes (content/topic/angle) remain `Box<[u64]>`.
 
+**CausalEdge64 — TWO distinct types in workspace (2026-05-14, PR #372 finding)**: same name, different bit semantics, different consumers. Always qualify by crate when referring to either:
+- `causal_edge::CausalEdge64` (`crates/causal-edge/src/edge.rs:60`) — SPO-palette layout: S/P/O palette indices + NARS f/c + Pearl 2³ mask + direction triad + inference type + plasticity flags + temporal index. Consumed by `lance-graph-planner::cache::nars_engine` (NarsTables), `cognitive-shader-driver::BindSpace::EdgeColumn`, AriGraph SPO commit path. The unit of NARS reasoning at cycle-speed.
+- `thinking_engine::layered::CausalEdge64` (`crates/thinking-engine/src/layered.rs:45`) — 8-channel cascade: BECOMES / CAUSES / SUPPORTS / REFINES / GROUNDS / ABSTRACTS / RELATES / CONTRADICTS (each 1 byte). Source/target NOT in u64 (carried as tuple key `(target: u16, edge: CausalEdge64)`). Emitted by `TierEngine::emit_causal_edges` after MatVec; consumed by downstream tiers via `apply_edges`. The unit of cognitive-cascade dispatch in the L1 → L2 → L3 thinking pipeline.
+
+Full reference: `.claude/knowledge/causal-edge-64-spo-variant.md` + `.claude/knowledge/causal-edge-64-thinking-engine-variant.md` + `.claude/knowledge/causal-edge-64-synergies-and-pr-trajectory.md`. Reunification path (Option R-3): transcode 8-channel → SPO at thinking-engine L3 commit boundary; see `.claude/knowledge/cognitive-shader-driver-thinking-engine-reunification.md`.
+
 ## cognitive-shader-driver Wire Surface (lab-only, post D0.1)
 
 Types live in `crates/cognitive-shader-driver/src/wire.rs` behind `--features serve`: