ENGINEERING
Dependency Canary: Auto-Close PR on Error-Rate Spike
After a dependency PR deploys to a canary, watches the Honeycomb error rate and, if errors spike past the budget, comments the evidence on the PR and converts it back to draft…
How it runs
The automated pipeline, trigger to output.
- TriggerCanary PR marked ready for reviewGitHub
- ActionQuery Honeycomb error-rate for canary vs baselineHoneycomb
- LogicCompare error rate to budget
- ActionRevert PR to draft and comment evidenceGitHub
- OutputAlert on-call in SlackSlack
What it does
Guards the merge button. It watches the Honeycomb error rate for a service running a freshly bumped dependency and, when errors blow past your budget, it freezes the PR and writes the evidence into the conversation so nobody merges a broken upgrade.
When to use it
Use it when latency alone is not enough and you care most about new exceptions or 5xx counts introduced by a version bump. Ideal for libraries that touch hot paths or serialization where breakage shows up as errors, not slowness.
How it works
- 1A PR with the `canary` label is marked ready for review, signaling the canary is live.
- 2The workflow queries Honeycomb for the `error` count rate over the canary window versus the prior baseline.
- 3A logic step checks the rate against the configured error budget.
- 4If the budget is breached, it converts the PR back to draft and posts a comment with the spike numbers and a Honeycomb query link.
- 5It pings the on-call engineer in Slack with the PR and the failing metric.
Set it up
What you configure once, before turning it on.
- 1Connect GitHubRepos, issues, pull requests, actions.
- 2Connect HoneycombDistributed traces and queries.
- 3Connect SlackChannels, DMs, threads, mentions.
- 4Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 5Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 6Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.
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Run it inside a business
This workflow drops into a full company template. Import the org, and this is one of the playbooks its agents run.
Run this workflow in your colony.
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