{% extends "base.html" %} {% from "includes/twin_verdict_banner.html" import twin_css, verdict_js %} {% block title %}Data Lineage Twin — {{ design.name }} — ICDEV™{% endblock %} {% block extra_css %}{{ twin_css() }}{% endblock %} {% block content %}
← Data Canvas

Data Lineage Twin — {{ design.name }}

Schema drift detection, lineage coverage scoring, and what-if impact analysis for data pipeline changes.

1. Lineage Snapshot

{% if snapshots %}
    {% for s in snapshots %}
  • {{ s.label }} {{ s.table_count }} tables · {{ s.edge_count }} lineage edges · {{ s.created_at[:10] if s.created_at else '—' }}
    • {% endfor %}
{% else %}

No snapshots yet — take one below.

{% endif %}

Captures the current table schema graph and lineage edges as a baseline.

2. Schema Change (What-If)

Paste a JSON array of schema changes, or use the tools below to generate one automatically.

Loads current schema context for AI chat
DESCRIBE YOUR CHANGE

Describe the schema change in plain English — AI generates the impact analysis JSON.

Run an impact analysis to see schema drift and lineage coverage here.

Data Quality Gate

Evaluate data quality rules against the proposed schema change — null constraints, referential integrity, CUI boundary crossings.

{{ verdict_js() }} {% endblock %}