[masarray]

Baseline

a328da13133a6473dc6a28a69f5d2aebab7a7198; post-merge M2J native Qt, SCL portable+Workbench, and Release Hardening succeeded.

Cross-repo design source (studied, not duplicated)

ARSAS masarray/arsas MainWindow.xaml Explorer (live signal grid / search / Quality / IED Timestamp / acquisition), MainWindow.ExplorerSignalGrid.cs, and MainWindow.SharedStaticDataSetAuthority.cs. ARSAS uses WPF/.NET; ARStack stays native Qt/QML with its existing MMS tree, independent per-IED watchlists, and exact-source associations. No parallel WPF/.NET architecture.

Root causes fixed

1. ARStack's combined All-IED Global Data silently moved Quality and IED Timestamp to tooltips although the authoritative watchlists already supplied both fields. Show them as first-class visible columns, along with IED, IEC reference, value and state.
2. ARSAS-style global signal search absent. Add case-insensitive search by IED/ref/value/quality/time/state on a bounded presentation, without altering subscriptions or issuing MMS Reads.
3. Per-IED Global Data previously labeled readable DA LIVE even if no MMS value had been received. Add one canonical hasReceivedValue bit on the existing indexed MMS DA node, set only on actual applyReadValue, including legitimate empty values. Present NOT READ until first real sample; keep OFFLINE and unresolved distinct.
4. Replace repeated combined ListModel clears on live updates with stable role patching when row identity/order unchanged. Coalesce bursts through Qt.callLater; capped 2048 rendered rows / 256 chars per rendered preview.

Regression/acceptance

• Native Browser convergence source contract for cross-IED search, visible Quality / Timestamp, no implicit Read/Timer, provenance.
• Existing 60k-large-node C++ QA extended to prove no-sample != empty-but-received.
• Exact-head Qt CI, SCL and any other required checks. Squash merge only with complete green and expected-head lease.

Preserved

M2A–M2J, static RCB report-only authority, one MMS decoder/tree/association per IED, explicit refresh (64 targets), no polling, no firmware or installer edits. Search is a view filter, not a semantic cache or acquisition mode.

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-15T03:39:36.843754Z	9e25398	PR opened

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[chatgpt-codex-connector]

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Reviewed commit: 9e25398110

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[masarray]

Cross-thread engineering handoff — SSOT/ARSAS plan now on main

The repository now has a single canonical, actionable IED Browser strategy merged in documentation-only PR #177, main commit 61be86f6:

• Optimized ARSAS-inspired native Browser strategy (M2K–M2P)
• Current engineering handoff / owner matrix
• Discoverable from AI_READ_FIRST.md and PROJECT_HANDOFF.md.

For the M2K integrator: this PR's source head remained 5c5e425c20acb1b849399f39bf62da0f68c0942b at latest inspection, and the exact-head native Qt and SCL-assisted Workbench jobs have both completed success. Re-query current head, remaining checks/review threads, and new main before merging; use an expected-head SHA lease and verify post-merge main. Docs-only PR #177 did not modify any M2K runtime/QML file.

Next division of labor: Track A owns canonical measurement provenance/CDC/typed q/t/unit/angle (M2L); Track B owns disjoint native QML selected-state UX and screenshots (M2M); Track C owns RCB/SG/File/GOOSE correctness (M2N–O); Track D owns QA/performance/artifacts on non-overlapping test files. No second semantic cache/decoder, automatic MMS polling, or WPF stack. Hz and TotW must not inherit phasor angle.

Please cite the strategy, main base SHA and file ownership when opening follow-up PRs, and update the current handoff after each accepted milestone.