Macro-5 No-Mega-Registry Lock — R2-B2 (2026-06-19)

Date: 2026-06-19 · Workstream: R2-B2-MACRO-5-STAGING-BUILD-AUTHORIZATION-PACKAGE-2026-06-19 (Deliverable 88 of 110) · Editorial revision: rev1 Class: no-mega-registry lock · READ-ONLY · NON-ENACTING · NON-AUTHORIZING · IO_CONTRACT_OVERREACH guard · NO write performed.

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

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0. Status and non-authorization

STATUS: PASS — engineering / design-only. Confirms the staging object model + contracts centralize nothing. Engineering PASS ≠ authority PASS. Default: HOLD.

1. Purpose

Hold the line that the object model/contract map is per-object, not a central store.

2. Sources / evidence read

Macro-4 no-mega-registry lock (D68); staging object model (14) + contract map (15). Main process, no reader-agents.

3. Accepted baseline (carried)

Each block carries its own envelope; there is no shared mutable surface and no implicit cross-block mutation.

4. Evidence / analysis — boundary check (CLEAN)

Forbidden	In Macro-5?
a central registry storing all objects' state	no — object model is per-role, local
a universal write surface	no — each object lands on one envelope surface
shared mutable hidden state	no — composition is by reference
implicit cross-object mutation	no — explicit, pointer-linked

5. Candidate / requirement / gate / result — drift trigger (→ HOLD)

Any deliverable turning the model/contract into a centralized store = IO_CONTRACT_OVERREACH → HOLD. Status this run: NOT triggered. The model standardizes shape, not content.

6. Owner-gated future work

Binding any object to runtime is Owner-gated; forbidden now.

7. What remains unresolved

The model centralizes nothing; runtime binding is future TD.

8. Ready for GPT/Codex review

Yes — Codex should attack any reading of the object model as a mega-registry.