Build a Production Lot Genealogy and Recall Rehearsal Engine

Trace serialized component consumption across sub-assemblies by parsing open62541 OPC UA lot tracking nodes. Generate containment blast-radius reports and supplier recall rehearsal dossiers for quality compliance teams.

Quality Assurance Manager

Ingest simulated OPC UA node variable hierarchies detailing component lot bindings and parent sub-assemblies.

Traverse upstream and downstream parent-child lot relations to map the complete production genealogy tree.

Calculate the defect blast radius given a simulated quarantine lot identifier.

Generate a structured recall rehearsal packet specifying quarantined serialized units and warehouse locations.

Genealogy graph explorer showing forward and reverse lot relationships, affected item totals, and quarantine export tables.

Simulated multi-tier bills of materials and lot binding records provided as JSON fixtures matching open62541 variable schemas. Starter examples below are synthetic. They are not downloaded records.

open62541 OPC UA OPC UA information model node attributes and variable browse paths from open62541 core node storage.

langgraph, pydantic, networkx. Manages cyclic parent-child lot traversal graph state and recursive genealogy tree expansion. Structured LLM capable of generating clean compliance audit reports from nested JSON trees.

Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.

Traverses multi-level lot trees up to 5 tiers without cycle deadlocks.

Identifies 100% of downstream units associated with a designated bad lot.

Outputs ISO 9001 audit-compliant containment action plans in structured JSON.

```json [ { "input": { "quarantined_lot": "LOT-STEEL-402", "genealogy_records": [ { "lot_id": "LOT-STEEL-402", "parent_subassembly": "SUB-CHASSIS-11", "station": "ST_PRESS_01" }, { "lot_id": "SUB-CHASSIS-11", "parent_subassembly": "FINAL-VEHICLE-8801", "station": "ST_FINAL_02" }, { "lot_id": "SUB-CHASSIS-11", "parent_subassembly": "FINAL-VEHICLE-8802", "station": "ST_FINAL_02" } ] }, "expected_output": { "quarantine_id": "LOT-STEEL-402", "impacted_subassemblies": [ "SUB-CHASSIS-11" ], "impacted_final_units": [ "FINAL-VEHICLE-8801", "FINAL-VEHICLE-8802" ], "containment_action": "HOLD_SHIPMENT" } }, { "input": { "quarantined_lot": "LOT-RESISTOR-99", "genealogy_records": [ { "lot_id": "LOT-RESISTOR-99", "parent_subassembly": "PCB-MOD-01", "station": "ST_SMT_04" } ] }, "expected_output": { "quarantine_id": "LOT-RESISTOR-99", "impacted_subassemblies": [ "PCB-MOD-01" ], "impacted_final_units": [], "containment_action": "QUARANTINE_WIP" } } ] ```

Operates strictly in an offline rehearsal mode on historical lot logs without triggering physical warehouse lockouts. Use mock external writes. Require human review before any real deployment.