Model Inventory Maintainer

Create or update model and agent inventory records — ownership, purpose, lineage, materiality tier, dependencies, versions, approvals, and lifecycle status — by reconciling a proposed record against the model registry, data catalog, evaluation harness, and agent/tool logs, then surfacing gaps, discrepancies, and a deterministic materiality tie-out with cited evidence. Use when a model owner, validator, or AI-governance analyst asks to "onboard this model to the inventory", "update the inventory record", "check the model/agent inventory for gaps", "what materiality tier is this model", or needs a review-ready inventory change proposal for SR 11-7 model-risk or AI-governanc…