Skill community intermediate
Lineage Explainer
Answer "what breaks if I change this column?" with evidence.
Traces column-level lineage from an asset to its upstream sources and downstream consumers, and reports the impact set for a proposed change.
npx de-agent-platform add lineage-explainerAt a glance
| What | Answer "what breaks if I change this column?" with evidence. |
|---|---|
| Where | Data Lineage · tech-openlineage · tech-datahub |
Learning objectives
- Read the lineages of an asset from a lineage store
- Compute a downstream impact set
- Distinguish technical from business lineage
Security scan
Last sweep 2026-10-24: 0 finding(s), 0 marked as examples.
Details
Lineage Explainer
Two questions, two graphs
- Technical lineage — which tables/jobs depend on this column.
- Business lineage — which metrics/reports depend on it.
A breaking change needs both, because a CFO does not read table names.
Impact set
Walk downstream from the changed node, stopping at published marts. Report owner, criticality, and the earliest SLA that will break.
Registry stats
| Verification | community · Sep 12, 2026 |
|---|---|
| Completeness | 100 |
| Trust multiplier | ×0.75 |
| Composite | 35.5 · adequate |
| Freshness | 42 days since last source check |
| Difficulty | intermediate |
| Version | 0.1.1 |
| License | Apache-2.0 |
| Security flags | 2 |
Did this solve your problem?
Lineage Explainer