IU Core Event Worker — 01 Precheck

Macro: IU_CORE_EVENT_WORKER_STRUCTURE_OPS_AUTOCUT_INTEGRATION_OPEN_GOAL Date: 2026-05-21

Host + repo

• Execution host: MacBook/dev host, repo /Users/nmhuyen/iu-cutter-build/repo/iu-cutter — present, safe.
• Branch main, HEAD 0ad425a at start, tree clean. No WRONG_EXECUTION_ENVIRONMENT.

Target identity — positively confirmed

• Production DB directus @ 172.19.0.3 (docker network), container postgres (postgres:16), role directus, VPS host vmi3080463 (contabo, 38.242.240.89).
• iu 158 / unit_version 165 / iu_tree_path 158 — matches the v0.6 controlled-route SSOT exactly. Master gate iu_core.routes_master_enabled = true.

Channels

• Read-only survey: VPS MCP query_pg (read-only role, 5 s timeout).
• Write channel (backup, gated DDL, probes): ssh contabo → docker exec -i postgres psql -U directus -d directus. Discovered from ~/.ssh/config; not asked of the user. No secret value logged.

Discover-first

No pre-existing worker artifacts on production — iu_route%/%worker%/ %dead_letter% search returned only iu_route_attempt (from migration 002) and views v_iu_sql_link_resolved / v_iu_tree. Greenfield for the worker; every new artifact is genuinely new.

8 mandatory gates — all PASS

#	Gate	Result
1	Correct host	PASS — Mac repo present, clean
2	Target identity	PASS — directus DB confirmed (counts match SSOT)
3	Fresh backup	PASS — directus-pre-iucore-event-worker-20260521T141243Z.dump (doc 02)
4	Drift check	PASS — route/event/worker state surveyed (doc 02)
5	Package integrity	PASS — forward 008/009/060 + rollback 008/009/060 + verify 070 + disable 080 authored before mutation
6	Disable boundary	PASS — worker gate seeded false; 080 disable runbook; rollbacks with REFUSED guards
7	Delivery safety	PASS — dry-run logs only; delivery seam RAISES; route stays dry_run=true (doc 04)
8	Backlog safety	PASS — worker scoped event_domain='iu' only