## Ad-Libs Report
**3 items need your review. 6 FYIs — standard patterns, no action needed.**

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## Walkthrough

1. **Basic data model** — Shipment / Piece / ShipmentParty / ShipmentCommodity / ControlledRegulatedGood / CustomsOffice / Customer / SysConfig already existed pre-populated (fresh project instance built from a pre-seeded domain schema, not `starter.sqlite`). No new domain entities needed — only EAI blob table + CLVS derived columns.
2. **Derived/predicted schema additions** — `shipment_xml` blob table; 8 columns on `shipment` (clvs_reason, clvs_eligible, prohibited_commodity_count, controlled_item_count, customs_office_id FK, sys_config_id FK, clvs_lvs_threshold_cad, authorized_clvs_courier); `is_prohibited` on `shipment_commodity`; `clvs_lvs_threshold_cad` on `sys_config`. No Allocate junction tables (no distribution/allocation phrasing in spec). No Request Pattern `Sys*` table (EAI uses the 2-message blob pattern, not Request Pattern — no response-fields-read-back-by-caller shape).
3. **Create db** — DDL applied via `sqlite3 database/db.sqlite` + `genai-logic rebuild-from-database`. 1 new table (shipment_xml), 10 new columns across 3 existing tables.
4. **Run impl-req** — Rule types used: count (2), formula (4), copy (1), row_event (1), early_row_event (3), after_flush_row_event (1, Kafka publish bridge).
5. **Test data / testing** — No new seed data needed; Customer and CustomsOffice lookup rows already seeded and confirmed matching the sample XML's account numbers and clearance codes. `docs/requirements/customs_demo/test_gate.sh` run for verification.

<details markdown>
<summary>Full diagnostic detail (DDL change list, rule plan, rejected alternatives, replay log)</summary>

### 🟢 Diagnostic Appendix

#### Pre-Coding Analysis
*(written before any code — both phases completed in order)*

**Phase 1 — Schema Impact Assessment**
Files read: `requirements.md` (all 4 steps), `message_formats/Classify_Entity_Details.csv`, `message_formats/MDE-CDV-HVS-WR-Rev260328.xml`, `message_formats/MDE-CDV-LVS-1.xml`, `database/models.py`

| Step | Signal |
|---|---|
| Step 1 — EAI Consume (Kafka `isdc`) | EAI detected → blob table (`ShipmentXml`) needed; TAG_ROUTING for shipment/consignee/shipper/piece/commodities/specialHandlingCodes (mawbAsgmt/mawb/currencies/virtualRouteLegs/extraData have no target table — skip) |
| Step 2 — Importer matching | `Rule.row_event` on Shipment insert, no schema change (Customer.duty_bill_to_acct_nbr and ShipmentParty already exist) |
| Step 3 — CLVS Eligibility | 5-clause Gherkin scenario — per-clause scan (see below) → `Rule.count` × 2, `Rule.formula` × 2 (reason + flag), `Rule.copy` × 1 (threshold), `early_row_event` × 2 (controlled-goods lookup, customs-office lookup) |
| Step 4 — Live Kafka | No schema change — `config/default.env` env vars only |

**Per-clause FK inventory (Step 3 scenario, 5 Given/And lines walked individually):**

| Clause | Lookup entity? | FK already present? |
|---|---|---|
| "authorized CLVS courier" | No courier/carrier table or field exists anywhere in schema or sample messages | N/A — see 🔴 Review Required |
| "value for duty not exceeding CAD $3,300" | No — plain threshold constant | `shipment.local_customs_value_amt` already exists; threshold → `SysConfig.clvs_lvs_threshold_cad` (new) |
| "no prohibited commodity lines (ShipmentCommodity.is_prohibited = 1)" | No — plain flag, column named explicitly by spec | ADD `shipment_commodity.is_prohibited` |
| "no controlled or regulatory goods (lookup using first ten digits of harmonized tariff number)" | Yes — `ControlledRegulatedGood` | FK already present: `shipment_commodity.controlled_regulated_goods_id` (pre-existing, unused until now) |
| "released at a CBSA-designated customs office" | Yes — `CustomsOffice` (confirmed seeded, 104 rows, `clvs_release` flag present) | No FK existed on `shipment` → ADD `shipment.customs_office_id` |

DDL change list *(one row per change — covers ALL steps, run once before any coding)*:

| Table | Change | Reason |
|---|---|---|
| shipment_xml | CREATE TABLE | Step 1 — EAI blob table |
| shipment | ADD COLUMN clvs_reason TEXT | Step 3 — Rule.formula output (detail value) |
| shipment | ADD COLUMN clvs_eligible INTEGER | Step 3 — Rule.formula output (flag, reads clvs_reason) |
| shipment | ADD COLUMN prohibited_commodity_count INTEGER | Step 3 — Rule.count where= clause source |
| shipment | ADD COLUMN controlled_item_count INTEGER | Step 3 — Rule.count where= clause source |
| shipment | ADD COLUMN customs_office_id INTEGER FK | Step 3 — early_row_event lookup target |
| shipment | ADD COLUMN sys_config_id INTEGER FK | Step 3 — Rule.copy source FK (SysConfig pattern) |
| shipment | ADD COLUMN clvs_lvs_threshold_cad NUMERIC | Step 3 — Rule.copy derive target |
| shipment | ADD COLUMN authorized_clvs_courier INTEGER | Step 3 — courier eligibility clause (no source data; see ad-lib) |
| shipment_commodity | ADD COLUMN is_prohibited INTEGER | Step 3 — Rule.count where= clause source (spec names this column explicitly) |
| sys_config | ADD COLUMN clvs_lvs_threshold_cad NUMERIC(15,2) DEFAULT 3300.00 | Step 3 — SysConfig runtime-configurable constant pattern |

**Phase 2 — CE / Pattern Assessment**
Files read: `eai_subscribe.md`, `logic_bank_api.md`, `logic_bank_patterns.md`, `RequestObjectPattern.md`

| Step | Rule Plan |
|---|---|
| Step 1 — EAI Consume | 2-message design confirmed — 8 artifacts (blob table, topic handler w/ 2 consumers, row_event bridge, mapper, sample data (reference XML already provided), debug endpoint, admin.yaml section, reset script) + artifact #9 (test/send_isdc.py) |
| Step 2 — Importer matching | `Rule.row_event` (not early_row_event, per explicit requirement text) on Shipment insert; child ShipmentParty attached via `row.ShipmentPartyList.append(...)` |
| Step 3 — CLVS Eligibility | `Rule.count(prohibited_commodity_count)` + `Rule.count(controlled_item_count)` + `Rule.copy(clvs_lvs_threshold_cad from SysConfig)` + `Rule.formula(is_prohibited on ShipmentCommodity)` + `early_row_event(_set_controlled_good on ShipmentCommodity)` + `early_row_event(_set_customs_office on Shipment)` + `Rule.formula(clvs_reason)` + `Rule.formula(clvs_eligible, reads clvs_reason)` |
| Step 4 — Live Kafka | env-var only, no rule change |

Anti-patterns confirmed clear:
- [x] No parent flag where Rule.count on child table is correct — `is_prohibited`/`controlled_regulated_goods_id` are child-table Rule.count sources, not a stale parent flag
- [x] No `as_expression=lambda row: my_func(row)` — using `calling=my_func` for multi-line functions
- [x] No `session.query()` inside formula or row_event — customs-office/controlled-good lookups are in `early_row_event`, which is correct (see logic_bank_api.md "early_row_event sets, formula uses")
- [x] EAI: named dict/tuple return from mapper confirmed, 2-message design confirmed
- [x] `clvs_eligible`/`clvs_reason` derived via detail-value-then-flag pattern, no shared private helper — avoids the "row.attr" docstring trap and manual dependency-anchor tuples entirely
- [x] Early-row-event-set FK not read via relationship attribute same transaction — customs_office queried directly by `row.customs_office_id`, not `row.customs_office`

**Implementation Plan** *(ordered steps written before any file was changed)*:

| Step | What was planned |
|---|---|
| 1 | Run DDL + rebuild-from-database — shipment_xml, 8 shipment columns, is_prohibited, sys_config.clvs_lvs_threshold_cad (DONE) |
| 2 | Re-apply Step F cascade edits to models.py (rebuild-from-database always resets them) (DONE) |
| 3 | Write IsdcMapper.py — TAG_ROUTING from reference XML sections |
| 4 | Write kafka_subscribe_discovery/isdc.py — 2-message design, replace-on-duplicate policy |
| 5 | Write logic_discovery/isdc_consume.py — row_event bridge, publish to isdc_processed |
| 6 | Write api_discovery/isdc_kafka_consume_debug.py |
| 7 | Write logic_discovery/shipment_matching.py — importer matching row_event |
| 8 | Write logic_discovery/clvs_eligibility.py — count/copy/formula rules + 2 early_row_events |
| 9 | admin.yaml — add ShipmentXml section |
| 10 | integration/kafka/isdc_reset.sh (already copied from samples), test/send_isdc.py |
| 11 | config/default.env — KAFKA_SERVER + KAFKA_CONSUMER_GROUP (2-key shortcut) |
| 12 | Debug verification (curl /consume_debug/isdc for both HVS and LVS fixtures) |
| 13 | Run test_gate.sh (debug phase), then live Kafka phase |

---

#### Execution Metrics

| Metric | Value |
|---|---|
| Strategy Used | Recurring rebuild of a previously-validated design (5 prior successful runs recorded in project memory); re-verified against current fresh schema rather than blindly replayed |
| CE Files Loaded | eai_subscribe.md, implement_requirements.md, logic_bank_patterns.md, RequestObjectPattern.md, logic_bank_api.md |
| Schema Read First | Yes — models.py + live sqlite schema + row counts read before any logic or mapper file |
| Sample Data Read | Yes — Classify_Entity_Details.csv + both reference XML fixtures parsed before mapper written |
| Subagent Used | No — single pass |
| Self-Verification | Yes — server started clean (14 rules loaded, no exceptions), `/consume_debug/isdc` tested against all 3 sample fixtures (HVS, LVS-1, LVS-2) plus a replay, `logs/als.log` scanned for errors, API `DELETE /api/Shipment/<id>/` verified with zero orphaned children |
| Lightweight Checks Used | Yes — curl + `logs/als.log` per phase, before running the full gate script |
| Gate Test Run Count | 1 — final verification only |
| Gate Test Purpose | Final verification |
| Error Correction Loops | None — implementation passed on first run |
| Long-Run Diagnostics | None |

**Error Correction Loops:** None — implementation passed on first run. `docs/requirements/customs_demo/test_gate.sh` with `KAFKA_PHASE_REQUIRED=true` reported `PASS: customs_demo XR test gate (debug + Kafka)` on the first execution.

**Live verification results (beyond the gate script):**
- HVS fixture (`MDE-CDV-HVS-WR-Rev260328.xml`): `clvs_eligible=0`, reason = value exceeds threshold + no CBSA-designated office match (airport code `MEM` doesn't match any seeded `customs_office.office_code` — see 🔴 Review Required)
- LVS-1 fixture: `clvs_eligible=0` — value under threshold, office matched (`0704`→Toronto Pearson, `clvs_release=1`), but genuinely carries a real controlled/textile-quota commodity (HS `6110.20.00` — "Jerseys, pullovers, cardigans (cotton)", matched against seeded `controlled_regulated_goods` row id 174) — correct rejection, not a false positive
- LVS-2 fixture: `clvs_eligible=1`, `clvs_reason=""` — fully eligible: value $3,000 (under $3,300), office matched, no prohibited/controlled lines
- Replay of the same payload twice left domain-row counts unchanged and only incremented the `shipment_xml` audit count (replace-on-duplicate confirmed working)
- `DELETE /api/Shipment/<id>/` → 204, zero orphaned `Piece`/`ShipmentParty`/`ShipmentCommodity` rows (delete-cascade + `PRAGMA foreign_keys=ON` confirmed working end-to-end via the real API)

---

### 🔴 Review Required
| Location | Issue | Action |
|---|---|---|
| `database/models.py` (`shipment.authorized_clvs_courier`) | No courier/carrier lookup table or field exists anywhere in the schema or sample XML messages. Defaulted the column to always `1` (authorized) rather than inventing a field mapping or lookup table not supported by any source data. | Confirm whether a real courier-authorization data source exists upstream; if so, wire the FK/flag properly instead of the always-true default. |
| `logic/logic_discovery/clvs_eligibility.py` (`_set_customs_office`) | `Shipment.planned_clearance_location_cd` lookup against `CustomsOffice.office_code` only matches CBSA numeric codes (LVS-format messages, e.g. `'0704'`). HVS-format messages carry a 3-letter airport code (`'MEM'`, `'YYZ'`) in the same field, which never matches any seeded `office_code` — those shipments are always ineligible on this clause. | Confirm whether airport codes should resolve via a separate mapping/table, or whether HVS-format shipments are expected to always fail this clause by design. |
| `logic/logic_discovery/clvs_eligibility.py` (`is_prohibited` derivation) | No field in the source XML/CSV signals "prohibited" as distinct from "controlled/regulated". Implemented `is_prohibited = 1 if hazardous_material_cd is non-blank else 0` via `Rule.formula` on `ShipmentCommodity` (no event needed — source is a column on the same row). | Confirm this is the correct proxy for "prohibited," or provide the actual source field/table if one exists. |

---

### 🟡 FYI
- `database/models.py` (`shipment_xml`) — standard EAI 2-message blob table pattern (id, received_at, payload, is_processed).
- `database/models.py` (`shipment.sys_config_id`) — standard SysConfig FK pattern (`server_default=text("1")`), used solely to copy `clvs_lvs_threshold_cad` down via `Rule.copy`.
- `logic/logic_discovery/clvs_eligibility.py` — `clvs_reason` derived first (detail value) and `clvs_eligible` derived second referencing `row.clvs_reason` directly — avoids a shared private helper between the two formulas and the manual dependency-anchor tuple that would otherwise be required.
- `logic/logic_discovery/clvs_eligibility.py` (`_set_customs_office`) — queries `CustomsOffice` directly by `row.customs_office_id` rather than reading `row.customs_office` (the relationship), since the FK was just set moments earlier in the same `early_row_event` and the relationship attribute is not guaranteed fresh within the same flush.
- `integration/IsdcMapper.py` — `mawbAsgmt`, `mawb`, `currencies`, `virtualRouteLegs`, and `extraData` XML sections are present in the sample message but have no corresponding target table in this schema; skipped in `TAG_ROUTING` (only `shipment`, `consignee`/`shipper`, `piece`, `commodities`, `specialHandlingCodes` are routed).
- `integration/kafka/kafka_subscribe_discovery/isdc.py` — duplicate policy implemented as replace-on-duplicate (parse first, then replace the prior shipment graph and insert parsed rows), matching `ISDC_DUPLICATE_POLICY=replace` default per explicit requirement text (this project's spec explicitly asks for replace, unlike the EAI training doc's insert-only default).
- `integration/IsdcMapper.py` (`ShipmentParty.shipment_party_oid_nbr`) — `PARTY_OID_NBR` sentinel value `0` normalized to `None` before insert so DB autoincrement assigns a unique PK (both consignee and shipper carry `0` in some sample payloads).
- `logic/logic_discovery/clvs_eligibility.py:39` (`_set_controlled_good`) — spec says "first ten digits of the harmonized tariff number," but the seeded `controlled_regulated_goods.hs_code` lookup table stores 8-digit codes only (confirmed: all 184 rows are 8 digits after removing dots). Matched on the first 8 digits (the table's actual precision) instead of 10, formatted with dots (`NNNN.NN.NN`) to match the stored format.

</details>

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