IU Core MVP Sandbox — 09 Commit + Artifact Status

Date: 2026-05-21 · Branch 8. Local commit only — no push/merge/tag.

Commit

• Repo: /Users/nmhuyen/iu-cutter-build/repo/iu-cutter
• Branch: main
• HEAD before: d22e361
• HEAD after: 4ce2667
• Parent: d22e361
• Message: test(iu-core): sandbox drill artifacts + apply-command hardening
• Stat: 6 files changed, +606 insertions, -0 deletions (additive only)

Files in the commit

File	Status
sql/iu-core/sandbox/010_sandbox_probe_seed.sql	NEW
sql/iu-core/sandbox/010_sandbox_probe_seed.rollback.sql	NEW
sql/iu-core/sandbox/020_sandbox_verification.sql	NEW
sql/iu-core/sandbox/030_drill_reparent_behaviour.sql	NEW
sql/iu-core/README.md	MODIFIED (+27)
tests/test_iu_core_ddl.py	MODIFIED (+56)

Test results gating the commit

python3 -m unittest discover -s tests → 525 tests OK (zero regressions). python3 -m unittest tests.test_iu_core_ddl → 39 OK.

Working tree

Clean after commit (git status --short empty).

Not done (forbidden by the macro)

• No git push, no merge, no tag.
• No deploy/restart, no VPS runtime-tree edit.
• The v0.5-ratified files and the prior authoring commit d22e361 are untouched — 4ce2667 is purely additive on top.

Reversal (NOT executed)

git reset --hard d22e361 on main removes commit 4ce2667.

Sandbox artifact status (VPS, ephemeral)

• pg-restore-test-20260520T031054Z / restore_test: left with iu-core 001–005 applied + the probe seed present (the verification-proven state).
• /tmp/restore_test.pre-iucore.dump (sha e7992cd2…) retained in-container as the clean-state restore point.
• Drill DB iu_core_drill was created and dropped — not left behind.
• Production directus DB: never connected for write; read-only identity checks only.