Macro-4 Draft Object Birth Contract — 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 14 of 90) · Editorial revision: rev1 Class: draft object birth contract · READ-ONLY · NON-ENACTING · NON-AUTHORIZING · CONCEPT-ONLY · NO write performed.

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

Disambiguation. "Birth" = a draft artifact coming into existence in the workbench. Not birth_registry/B1/B4. No production birth/certify touched.

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0. Status and non-authorization

STATUS: PASS — engineering / design-only. The contract for creating a draft object cleanly and disposably. Engineering PASS ≠ authority PASS. Default: HOLD.

1. Purpose

Define how a draft object is born so it is self-identifying, scoped to a run, and deletable.

2. Sources / evidence read

Draft lifecycle (13); workbench naming convention (9); pilot-slice staging IO contract §4 (input)/§5 (output). Main process, no reader-agents.

3. Accepted baseline (carried)

Everything entering the workbench is a copy/sample; everything produced is a candidate on a disposable surface.

4. Evidence / analysis — birth contract

Field	Value
Input	a disposable projection of uncertified-row shape (not live rows)
Identity	a unique staging run id + "candidate" designation
Surface	the disposable workbench namespace only (never production/iu_core)
Genuine	candidate inspect_* set only on a real per-stage pass (no blanket now())
Fail mode	malformed draft input → reject (no fabricated pass), append to staging evidence

5. Contract / requirement / matrix / result

A born draft object is fully enumerable by its run id (precondition for delete-fast) and carries no production reference. Birth never sets production inspect_*/certified/canonical fields.

6. Owner-gated future work

Creating a draft object against a built surface is Owner-gated; forbidden now.

7. What remains unresolved

The materialization of "born" is FUTURE_TECHNICAL_DESIGN_REQUIRED.

8. Ready for GPT/Codex review

Yes — Codex should confirm a born draft is run-scoped and production-free.