DATA OPS

Event Payload Contract Guard with Linear Ticket on Drift

Receives sampled event payloads on a webhook, validates each against the registered JSON schema for its event type.

CategoryData Ops
Enginesim
Difficultyintermediate
Triggerwebhook
Steps4
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerWebhook receives sampled event payloadHTTP webhook
  • LogicLook up contract + validate payload against it
  • ActionRecord passing validation to AxiomAxiom
  • OutputFile Linear bug for breaking violationsLinearLinear

What it does

Extends contract enforcement past the warehouse to the event stream that feeds it. Producers post a sample of live events to the webhook; each is validated against the stored contract for its event type. Removed required fields, type changes, and enum violations are treated as breaking and routed to engineering as a tracked ticket.

When to use it

When schema drift originates upstream — a service quietly drops a field or changes a type and your ingestion or warehouse loads start failing. Run it against a live sample to catch producer regressions at the source with an owner-assigned ticket.

How it works

  1. 1An HTTP webhook receives a sampled event payload.
  2. 2Logic step looks up the registered contract for the payload's event type.
  3. 3Validate the payload: flag missing required fields, type mismatches, and unknown breaking changes.
  4. 4If valid, record the pass to Axiom and exit.
  5. 5On a breaking violation, create a Linear issue with the event type, the failing field, and a sample payload, labeled and assigned to the owning team.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect HTTP webhookTrigger any URL on agent actions.
  2. 2
    Connect AxiomLog streams, queries, dashboards.
  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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