Firetiger — Know every change is healthy in production

A dedicated agent
for every pull request

Open a PR. Firetiger reads the diff, builds a monitoring plan, and watches deployments rollout across every environment you care about.

You'll know within minutes whether the change broke anything, and more importantly, whether it's actually accomplishing its intended effect.

Analyzes the PR diff
Change Monitors understand what changed, what signals matter, and what normal should look like after.
Watches the environments that matter
Choose which environments to monitor: From staging to prod, tracked independently, with comparisons between them.
Verifies intent, not just errors
You opened a PR for a reason. Change Monitors verify the intended effect in production.

Merged

Batch line-item queries in checkout flow (FIRE-4821) #4821

sarah.kmerged 3 commits intomainfromsarah/checkout-batch-queries

firetiger-agentBotcommented2 minutes ago

Change Monitor complete — checkout flow is performing as expected.

All 3 monitored environments are healthy 15 minutes after rollout:

Environment	Deploy	p99 latency
staging	12m ago	519ms −38.4%
canary	8m ago	527ms −37.4%
prod-us-east	4m ago	531ms −37.0%

Key observations:

db.query_count per checkout dropped 14.2 → 1.02 avg — matches the batched query intent
p99 latency reduced consistently across all 3 environments
Error rate unchanged at 0.02% — no regressions in request paths touched by the diff
Cross-checked traffic on /api/checkout and /api/cart endpoints — volumes within normal bands

Continuing to watch prod-us-east for 24h before closing the monitor.

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Open a PR

You or your coding agents.

Change Monitor attached

Firetiger reads the diff and builds a monitoring plan.

Rollout watched

Compared to the pre-deploy baseline across staging, canary, and prod.

One verdict per deploy

Verified, regression detected, or inconclusive.

Regression detected

Evidence and root cause, already attached.

Fix, then re-verified

You or your coding agent ships it. The monitor confirms.

Open a PR

You or your coding agents.

Change Monitor attached

Firetiger reads the diff and builds a monitoring plan.

Rollout watched

Compared to the pre-deploy baseline across staging, canary, and prod.

Fix, then re-verified

You or your coding agent ships it. The monitor confirms.

Regression detected

Evidence and root cause, already attached.

One verdict per deploy

Verified, regression detected, or inconclusive.

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Mason

Founding Engineer, Kernel

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