FINANCE
Margin Erosion Alert When Cost-Per-Account Spikes
Hourly checks whether blended cloud cost per active account has crossed a threshold versus the trailing 7-day baseline.
How it runs
The automated pipeline, trigger to output.
- TriggerHourly schedule
- ActionPull rolling Vercel spendVercel
- ActionQuery baseline + active accountsBigQuery
- LogicCompare ratio to 7-day baseline
- LogicAttribute spike to top cost driver
- OutputPage finance in Slack on breachSlack
What it does
Watches the ratio of cloud spend to active accounts and fires only when it deviates meaningfully from its recent baseline. Instead of a daily digest, this is an exception monitor that stays silent until economics actually degrade, then names the likely driver (Vercel bandwidth, function compute, or an infra line item).
When to use it
Use it when a single deploy, traffic event, or misconfigured region can blow up per-account cost mid-month and you can't wait for the monthly close to notice. Best for teams that want signal, not noise.
How it works
- 1An hourly schedule trigger runs the check.
- 2Pull rolling Vercel spend for the current period via the Vercel API.
- 3Query BigQuery for active account count and the trailing 7-day cost-per-account baseline.
- 4A logic step compares current ratio to baseline; if it's within tolerance, the run exits quietly.
- 5On breach, attribute the spike to the largest contributing cost line.
- 6Send a Slack alert with the breach magnitude and driver so finance can act same-hour.
Set it up
What you configure once, before turning it on.
- 1Connect VercelDeploys, runtime logs, analytics.
- 2Connect BigQueryDatasets, queries, schemas.
- 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 this workflow in your colony.
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