ENGINEERING

SLO burn triggers ramp-down notice and PagerDuty page

When a Honeycomb SLO burn crosses the fast-burn threshold, opens a PagerDuty incident for the on-call and posts a customer-facing ramp-down notice to Slack so traffic can be shed…

CategoryEngineering
Enginesim
Difficultyintermediate
Triggerwebhook
Steps4
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerHoneycomb fast-burn SLO alertHoneycomb
  • LogicClassify fast burn vs slow trend
  • ActionOpen PagerDuty incident for on-callPagerDutyPagerDuty
  • OutputPost ramp-down notice to SlackSlack

What it does

This is the incident-side companion to a merge freeze. A fast burn means you're about to blow the budget within the hour, so this workflow pages the service owner through PagerDuty and broadcasts a ramp-down notice telling the team to begin shedding non-critical traffic and pause risky rollouts.

When to use it

Use it for high-severity, fast-burn SLOs where the right human response is immediate — not just a code freeze, but active load shedding and an on-call engagement. Pair it with the merge-freeze workflow for full coverage.

How it works

  1. 1Honeycomb fires a fast-burn SLO alert into the workflow.
  2. 2The workflow checks whether the burn rate exceeds the fast-burn multiplier (e.g. 14x over 1 hour) versus a slower trend.
  3. 3If it's a fast burn, it opens a PagerDuty incident routed to the service's escalation policy with the burn detail attached.
  4. 4It posts a ramp-down notice to the incident Slack channel listing the affected service, projected time-to-exhaustion, and the recommended shedding steps.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect HoneycombDistributed traces and queries.
  2. 2
    Connect PagerDutyIncidents, on-call, escalations.
  3. 3
    Connect SlackChannels, DMs, threads, mentions.
  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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