Reusable AI capability

Reconstruct Broken Data Lineage

Apply a repeatable incident method to locate the first data-lineage divergence, bound affected outputs and decisions, and gate repair and reprocessing.

This Skill is a reusable set of instructions based on the linked Amo.ng Prompt or Workflow. It tells you what to provide, how to apply the method and how to know when the task is complete. It does not run automatically.

Skill ID
AMO-S-000025
Based on
Prompt
Published

Copy Skill copies the full Skill instructions. Use with AI copies those instructions with a short guide for your chosen AI tool. Both actions only copy text—they do not send anything to an AI provider or run the Skill.

Purpose

Give data, analytics, service, and decision owners a reusable capability for investigating lineage failures across pipelines, metrics, models, dashboards, and downstream decisions.

Required inputs

Have these details available before following the usage instructions.

  • Exact affected data product, output, metric, model, report, or decision
  • Authoritative sources, schemas, transformations, queries or code, lineage metadata, orchestration and quality checks
  • Known-good and affected samples, change and incident timeline, runtime logs, and owner records
  • Repair, rollback, reprocessing, retention, audit, and decision-suspension constraints

How to use this Skill

When to use:
- A downstream value or decision no longer reconciles to its authoritative source.
- A schema, transformation, mapping, orchestration, or quality-control change may have broken lineage.

When not to use:
- General data catalog design with no observed divergence.
- Repairing or reprocessing production data without owner authorization.

Reusable method:
1. Freeze the affected outputs, decision window, expected lineage, authoritative source, and known-good comparison.
2. Trace source, extraction, transformation, mapping, storage, aggregation, semantic, and consumption edges with versions and evidence.
3. Compare values and contracts at each boundary to locate the first supported divergence.
4. Bound affected periods, entities, outputs, models, reports, and decisions; distinguish confirmed from possible exposure.
5. Compare smallest repair, rollback, targeted reprocessing, full reprocessing, and continue-investigation paths.
6. Define preservation, validation, reconciliation, downstream notification, and decision-reassessment gates.

Expected output:
A lineage graph, evidence ledger, first-divergence finding, impact and decision register, repair and reprocessing options, validation plan, unresolved gaps, and owner decisions.

Boundaries:
Do not invent data, lineage, code, queries, runs, or repair results. Data and service owners authorize changes and reprocessing; analytics and model owners validate downstream artifacts; the accountable decision owner decides reassessment. Source: AMO-P-000318. Applicable Workflow: Rebuild Confidence in an Analytics Decision.

Based on an Amo.ng Prompt

Data Lineage Break Investigation

Open the linked Prompt to read the instructions this Skill is based on.

Open prompt

Completion criteria

Complete when the first supported divergence and all affected downstream edges are evidence-linked; impact is bounded; a repair and reprocessing disposition has owner, preservation, rollback, and validation gates; and affected decisions are marked usable, limited, suspended, or pending reassessment.

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