Read-Only Delete-Fast Readiness Recheck

Date: 2026-06-18 · Workstream: LEGO-PILOT-SLICE-0-R2-B2-READONLY-EVIDENCE-OWNER-PATH-MACRO-2026-06-18 (Deliverable 20 of 30) · Editorial revision: rev1 Class: read-only delete-fast readiness recheck · READ-ONLY · NON-ENACTING · NON-AUTHORIZING · NO DELETE/DROP/SQL · NO disposal · NO write performed.

Metadata convention. Editorial revision (rev1) only. AgentData storage revision/content_length authoritative at read time; not pinned here.

Delete-fast lock. This packet re-confirms the delete-fast proof obligations (DF-1…DF-6) can be specified further read-only without building or disposing anything. It writes no DELETE/DROP/SQL and no delete mechanism.

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0. Status and non-authorization

STATUS: PASS — engineering / read-only. DF-1…DF-6 re-affirmed as requirements; the disqualifying residue condition (BAD-15 / F-OPEN-9) carried. Engineering PASS ≠ authority PASS. Default disposition: HOLD. No disposal; no DELETE/DROP/SQL; no delete mechanism; no DB write/DDL/DML; no TD; no blocker resolved.

Evidence basis — INHERITED_KB_EVIDENCE (DF-1…DF-6 proof shape) + FRESH_READONLY_EVIDENCE (DF-4 ties to the fresh NT-7 production baseline, Deliverable 19). Reading discipline: main process, no reader-agents.

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1. Purpose

Confirm that delete-fast can be specified further read-only (DF-1…DF-6) without building staging or disposing anything. §4 re-affirms the obligations; §5 classifies (specifiable read-only; execution write-gated).

The one rule: delete-fast = the entire staging surface as ONE disposal unit, total + isolated, with production provably untouched. This packet states the proof; it disposes nothing and writes no delete.

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2. Sources / evidence read

Mega Gate Delete-Fast Proof Obligations (DF-1…DF-6; BAD-15 / F-OPEN-9); Staging IO Contract §9 (delete-fast boundary); Deliverable 19 (NT-7 = DF-4 production-untouched baseline). Read directly, main process.

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3. Accepted baseline (carried)

DF-1 pre-disposal inventory; DF-2 one move (fast); DF-3 total (zero residue — disqualifying if violated); DF-4 isolated (= NT-7, production untouched); DF-5 one-run correspondence; DF-6 no silent PASS. The disposal mechanism is FUTURE_TD; no DELETE/DROP/SQL written.

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4. Read-only evidence observed / re-affirmed

• DF-1…DF-6 are fully specifiable read-only (the proof shape is complete; execution needs a built staging surface).
• DF-4 (isolation = NT-7) is anchored to the fresh production baseline (Deliverable 19: certified=1,402; uncertified=1,211,635; KG 2199/0-prov) — disposal must leave these byte/count-identical.
• DF-3 (totality) is the disqualifying obligation (BAD-15 / F-OPEN-9): any residue rejects the staging design.
• No disposal performed; no delete mechanism written. The staging surface does not exist (GATE-6 No-Go), so there is nothing to dispose.

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5. Classification / result

• Delete-fast proof specifiable read-only (DF-1…DF-6); the read-only contribution is anchoring DF-4 to the fresh "before" baseline.
• Execution is write-gated (needs a built staging surface + a delete mechanism, both FUTURE_TD).
• No DELETE/DROP/SQL written; nothing disposed.

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6. Owner-gated future work

Future work	Gate required	Forbidden now?
Define/execute the delete-fast mechanism	Điều 32 (part of staging TD)	Yes
Take DF-1/DF-3/DF-4 inventories/snapshots against a built pilot	Owner read-only pass + built pilot	Yes

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7. What remains unresolved

• No staging surface to dispose (GATE-6 No-Go); delete mechanism FUTURE_TD.
• DF-3 totality is the disqualifying obligation.
• Blockers — all OPEN.

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8. Ready for GPT/Codex review

Yes — as a read-only delete-fast readiness recheck.

Core rule: DF-1…DF-6 specifiable read-only (DF-4 anchored to the fresh production baseline); nothing disposed, no delete/SQL written, execution write-gated.

Default disposition: HOLD. Engineering PASS ≠ authority PASS. All blockers remain OPEN.