feat(billing): add billing alerts#66355
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Size Change: +381 kB (+0.59%) Total Size: 64.6 MB 📦 View Changed
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🔍 Migration Risk AnalysisWe've analyzed your migrations for potential risks. Summary: 1 Safe | 0 Needs Review | 0 Blocked ✅ SafeBrief or no lock, backwards compatible Last updated: 2026-06-26 15:42 UTC (f2e956a) |
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Why?
Lots of customers have asked for this, especially spend spike notifications when daily burn jumps unexpectedly, project-level billing alert controls, and billing notifications that don't depend on an org owner receiving the email.
I didn't want to create more work for others, so I checked the existing patterns and architecture first.
How?
What?
Base migration branch here: #66353
Local proof screenshots
Billing alert created through the UI and firing after the synthetic billing spike:
Slack notification delivered to
#will-account-alerts:How did you test this code?
bin/hogli build:openapiuv run ruff check products/billing_alerts posthog/temporal/billing_alerts posthog/management/commands/start_temporal_worker.py posthog/settings/web.py posthog/temporal/schedule.pypnpm exec oxfmt --check frontend/src/lib/components/Alerting frontend/src/scenes/billing/BillingAlerts.tsx frontend/src/scenes/billing/billingAlertsLogic.ts frontend/src/scenes/billing/BillingSection.tsx frontend/src/scenes/billing/types.ts frontend/src/scenes/hog-functions/AlertWizard/AlertWizard.tsx frontend/src/scenes/hog-functions/AlertWizard/steps/WizardCard.tsx frontend/src/scenes/hog-functions/list/HogFunctionsList.tsxpnpm exec oxlint frontend/src/lib/components/Alerting frontend/src/scenes/billing/BillingAlerts.tsx frontend/src/scenes/billing/billingAlertsLogic.ts frontend/src/scenes/billing/BillingSection.tsx frontend/src/scenes/billing/types.ts frontend/src/scenes/hog-functions/AlertWizard/AlertWizard.tsx frontend/src/scenes/hog-functions/AlertWizard/steps/WizardCard.tsx frontend/src/scenes/hog-functions/list/HogFunctionsList.tsxManual UI plus Slack proof run:
Prereqs:
SLACK_APP_CLIENT_ID,SLACK_APP_CLIENT_SECRET, andSLACK_APP_SIGNING_SECRET.Ask your agent to:
Billing > Alerts > New notification, choose Slack, and select a Slack channel.10for 7 days and current spend was100.notification_sent_at, the HogFunction invocation inposthog.hog_invocation_resultsissucceeded, and the Slack message is visible in the selected channel.Proof records from the local run:
Stay up-to-date with PostHog coding conventions for a smoother review.
Automatic notifications
Docs update
We should once done?
Agent context
Autonomy: Human-driven, agent-assisted.
Implementation was guided by local repo inspection, existing alerting UI patterns, and local validation.
The main design choice was to keep shared alerting components atomic and pass billing-specific trigger/configuration UI into those primitives, rather than baking billing behavior into the shared layer.