Safe Backfill And Replay Orchestration

Overview

Backfills are among the highest-risk data engineering operations. Agents that rerun jobs without bounded windows, publish gates, or reconciliation checks routinely cause double-counting, corrupted metrics, and downstream trust loss. This skill blocks execution until a written replay plan, rollback path, and validation gates exist.

When to Use

• running /backfill or any historical reprocessing request
• repairing a failed or partial publish window
• replaying events or partitions after an incident
• changing transformation logic that requires recomputation
• cutting over to new pipeline behavior with overlapping data windows

Always load this skill before orchestration-and-backfills execution steps. Treat plan approval as a hard gate, not a suggestion.

Workflow