Checkpoint — Phase-2 Offline MVP End-to-End Execution Path

Macro: PROGRAM_MACRO_CLOSE_PHASE2_OFFLINE_MVP_END_TO_END_ON_VPS_OR_APPROVED_CI_2026_06_09 Run date: 2026-06-10 (macro dated 2026-06-09) Final status: B4_PRIME_OPERATOR_ACTION_REQUIRED — end-to-end path stopped at Track 2 (venue/runtime); B4′ remains BLOCKED. Production mutation: NO · Codex consulted: NO · Mac-local evidence used: NO · Install/system mutation: NO · Container created by agent: NO

What this session did

A program macro attempted to close the whole Phase-2 offline-MVP execution path end-to-end (KB SSOT → venue verify → B4′ attest → MVP build → tests → FIX7 fixture → matrix binding → persist). It read all 12 required KB docs first (KB-FIRST), re-verified the live runtime surface read-only, and determined the path cannot proceed past venue verification because no agent execution surface exists to run a disposable sandbox on an approved venue. It then produced an action-ready blocker and stopped — without fabricating any downstream track.

Track verdicts

Track	Verdict
1 — KB readback	PASS (12/12 docs exist, consistent, no contradiction; established state = SANDBOX_ATTESTATION_PARTIAL, B4′ BLOCKED, build prompt GATED)
2 — Venue/runtime	RUNTIME_PRESENT_BUT_NOT_AGENT_REACHABLE — VPS Docker socket read-only by design (live list_docker 2026-06-10 = 11 containers, no run/exec/create tool); no approved CI runner reachable; Mac-local rejected. Stop here.
3 — B4′ materialization	NOT REACHED (no execution surface)
4 — B4′ probes	0 run / 12 specified (no execution surface)
5 — MVP build	NOT REACHED (gated on B4′; gated build prompt hard-precondition 2 UNMET)
6 — Acceptance/negative tests	NOT REACHED
7 — FIX7 read/report fixture	NOT REACHED
8 — Matrix binding	NOT REACHED
9 — Cleanup	N/A — no disposable artifact created (nothing to clean up)
10 — Article 13	PASS — KB-first/native; no Mac-local substitution; no local-first authority; generated docs are evidence, not authority; no shadow SSOT
11 — Article 14	PASS — no prose-only PASS; every claim evidence-backed (live list_docker + tool-contract + KB record); no fake-green; no unsupported build authorization; no hidden mutation; partial/blocked honestly reported

KB readback verdict

PASS. All 12 macro-listed docs exist at revision ≥1; statuses consistent (SANDBOX_ATTESTATION_PARTIAL, BUILD_PROMPT_READY_GATED, REV4_READY_FOR_CODEX, ACCEPTANCE_MATRIX_v0_1_REV4_READY_FOR_CODEX, index rev80). No stale/missing/contradictory input.

Venue/runtime verdict

VPS Docker is read-only by design (no run/exec/create tool exposed); no approved CI runner reachable; Mac-local rejected. Agent cannot create/run a disposable container → cannot attest B4′.

Documents created/updated

• checkpoints/action-ready-blocker-after-phase2-offline-mvp-execution-path-2026-06-09.md (created)
• checkpoints/checkpoint-phase2-offline-mvp-execution-path-2026-06-09.md (this file, created)
• 00-index.md (patched — header update + 2 new rows + next-step)

No B4′ attestation report / MVP execution report / matrix-binding doc was created: those deliverables are conditional on B4′ running, which it did not. Creating them would be fake-green.

Remaining blockers

• B4′ (load-bearing, BLOCKED) — operator must run checkpoints/operator-blocker-packet-sandbox-attestation-2026-06-09.md on VPS throwaway container or approved CI runner and return §4 evidence; a follow-up agent verifies read-only against matrix #24–#37.
• B0‴ (parallel authority, WAIVED for this scope only) — does not block B4′; Codex usable later after evidence exists.

Minimal safe next step

Operator runs the operator-blocker-packet on an approved venue (VPS throwaway --rm container on the already-deployed runtime, or approved CI runner — not Mac-local) and returns the evidence bundle. A follow-up agent verifies it read-only and binds to rev4 matrix #24–#37 before any B4′ acceptance. Do not run the gated build prompt until then.