Macro-4 No-Mega-Graph Lock — R2-B2 (2026-06-19)

Date: 2026-06-19 · Workstream: R2-B2-MACRO-4-STAGING-WORKBENCH-IO-CONTRACT-TD-ENTRY-GATE-2026-06-19 (Deliverable 69 of 90) · Editorial revision: rev1 Class: no-mega-graph lock · READ-ONLY · NON-ENACTING · NON-AUTHORIZING · R1_SCOPE_CREEP guard · NO write performed.

Metadata convention. Editorial revision (rev1) only. Storage revision/content_length authoritative at read time.

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0. Status and non-authorization

STATUS: PASS — engineering / design-only. Holds B2 out of the KG/graph lane. Engineering PASS ≠ authority PASS. Default: HOLD.

1. Purpose

Guarantee Macro-4 builds no mega-graph and B2 never writes KG provenance/edges.

2. Sources / evidence read

B2 production-firewall contract (35, B2-AC-4); R1/KG scope lock (67); FRESH universal_edges. Main process, no reader-agents.

3. Accepted baseline (carried)

The birth lane is independent of the KG lane; B2 must not write KG provenance/edges; inspection is structural completeness/validity, never a graph-inference output.

4. Evidence / analysis — boundary check (CLEAN)

Forbidden	In Macro-4?
B2 writes universal_edges	no
an IO contract that produces graph edges	no
a mega-graph spanning blocks	no
KG reasoning as a B2 input	no
FRESH universal_edges = 2,199 / 0 provenance — untouched, read-only.

5. Contract / requirement / matrix / result — drift trigger (→ HOLD)

Any graph/edge write or KG-inference coupling = R1_SCOPE_CREEP / mega-graph → HOLD. Status this run: NOT triggered.

6. Owner-gated future work

The KG lane (Điều 39) is a separate Owner-gated package; forbidden now.

7. What remains unresolved

Điều 39 OPEN; KG lane unopened.

8. Ready for GPT/Codex review

Yes — Codex should confirm no deliverable creates a graph or writes KG edges.