ENGINEERING
Page on-call and lock the release branch on critical fast burn
When Honeycomb signals a critical fast-burn event, pages the on-call engineer via PagerDuty and enables branch protection that blocks merges to the release branch until budget…
How it runs
The automated pipeline, trigger to output.
- TriggerHoneycomb critical fast-burn alert webhookHoneycomb
- LogicConfirm alert is critical tier, not a warning
- ActionTrigger PagerDuty incident for on-call rotationPagerDuty
- ActionLock release branch via GitHub branch protectionGitHub
- OutputPost branch-lock and page notice to SlackSlack
What it does
Handles the worst-case burn: a critical fast-burn alert that means the budget will be exhausted within hours. It escalates to the on-call engineer and hard-locks the release branch so no further merges can compound the incident.
When to use it
Reserve this for your tightest, highest-severity SLOs where continuing to ship during a fast burn is unacceptable. It is the enforcement-with-teeth counterpart to softer label-based freezes.
How it works
- 1A Honeycomb critical fast-burn alert webhook fires.
- 2A logic step confirms the alert is the critical tier and not a lower-severity warning; warnings exit early.
- 3The flow triggers a PagerDuty incident for the owning service's on-call rotation with the SLO and burn rate.
- 4It updates GitHub branch protection on the release branch to require an admin override, effectively blocking merges.
- 5It posts a Slack alert stating the branch is locked, who was paged, and the conditions to unlock.
Set it up
What you configure once, before turning it on.
- 1Connect HoneycombDistributed traces and queries.
- 2Connect PagerDutyIncidents, on-call, escalations.
- 3Connect GitHubRepos, issues, pull requests, actions.
- 4Connect SlackChannels, DMs, threads, mentions.
- 5Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 6Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 7Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.
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