Macro-4 Disposable Draft Surface Requirements — 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 42 of 90) · Editorial revision: rev1 Class: disposable draft surface requirements · READ-ONLY · NON-ENACTING · NON-AUTHORIZING · 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. The properties a disposable draft surface must have to be safe to "draft freely / delete fast." Engineering PASS ≠ authority PASS. Default: HOLD.

1. Purpose

Pin the surface-level properties that make "nháp thoải mái" safe.

2. Sources / evidence read

Pilot-slice staging IO contract §3/§9; workbench concept (6); FRESH existing IU staging tables (to distinguish). Main process, no reader-agents.

3. Accepted baseline (carried)

The freedom to iterate comes from disposability + isolation, not relaxed rules — the fail-closed Điều 0-G rules still apply inside the workbench.

4. Evidence / analysis — surface requirements (DDS)

#	Requirement
DDS-1	Isolated: a distinct disposable namespace, never birth_registry/iu_core.*/unit_edit_draft (FRESH production objects)
DDS-2	Disposable: removable as one unit with no production cascade
DDS-3	Rule-faithful: mirrors the B3 inspect_* shape + Điều 0-G fail-closed rules (no relaxed rules)
DDS-4	Candidate-only: produces candidate inspect_*, never production
DDS-5	Evidence-bearing: emits staging-tagged, records-not-decides evidence
DDS-6	Proof-friendly: supports a before/after production snapshot

5. Contract / requirement / matrix / result

A surface meeting DDS-1…DDS-6 is safe to draft on and throw away. FRESH note: the existing iu_core staging tables are production IU-pipeline surfaces and do not satisfy DDS-1 as a B2 workbench — the B2 surface must be separate and new. No surface is built here.

6. Owner-gated future work

Building a DDS-compliant surface is Owner-gated future TD; forbidden now.

7. What remains unresolved

The surface materialization (separate schema/db) is FUTURE_TECHNICAL_DESIGN_REQUIRED.

8. Ready for GPT/Codex review

Yes — Codex should confirm the surface is isolated from all FRESH production objects.