DATA OPS

Agent-triaged schema drift with downstream impact analysis

When nightly drift is detected, an agent traces which dbt models and dashboards depend on the changed columns, writes a plain-English impact summary.

CategoryData Ops
Enginepaperclip
Difficultyadvanced
Triggerschedule
Steps5
Setup~25 min

How it runs

The automated pipeline, trigger to output.

  • TriggerNightly schedule triggers run
  • ActionDiff warehouse schema vs baselineSnowflakeSnowflake
  • ActionRead dbt + dashboard definitionsGitHubGitHub
  • LogicAgent traces lineage and scores blast radius
  • OutputFile prioritized Linear impact ticketLinearLinear

What it does

This workflow goes beyond detecting drift — it reasons about consequences. After a scheduled diff finds changed columns in the warehouse, an agent reads the dbt project and BI metadata in your repo to find every model and report that references the affected columns. It then writes a human-readable impact summary ("3 models and the Revenue dashboard break") and files a Linear ticket whose priority reflects how many critical assets are downstream.

When to use it

Use it when a raw drop in a column name tells you nothing about whether it matters. Teams with sprawling dbt DAGs use this to skip the manual lineage tracing and get a ticket that already explains what will break and how urgent it is.

How it works

  1. 1A nightly schedule triggers the run.
  2. 2The warehouse schema is diffed against the stored baseline.
  3. 3On any change, the agent reads the dbt and dashboard definitions from GitHub.
  4. 4The agent traces lineage to find every downstream consumer of changed columns.
  5. 5It composes an impact summary and a priority based on blast radius.
  6. 6It files a scoped, prioritized Linear ticket with the analysis attached.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect SnowflakeWarehouses, queries, shares.
  2. 2
    Connect GitHubRepos, issues, pull requests, actions.
  3. 3
    Connect LinearIssues, projects, cycles, triage.
  4. 4
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  5. 5
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  6. 6
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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