NewPolicies are Officially Part of OpenTelemetry
Solutions · Reliability

Find production problems before your customers do.

Tero connects read-only to the telemetry you already store and continuously finds recurring failures, slow degradation, capacity pressure, and configuration problems your current tools miss. Every issue comes with evidence and is ready for the agent or workflow you choose.

  • Connect read-only
  • No alert rules to configure
  • Works across your existing stores
  • Findings in minutes
Reliability overviewProblems found before an alert fired
Live analysis
Early risks12
No alert fired7
Ready for agent9
Human review3
Open reliability issues12 issues
High47d

Database connection failures increasing

checkout-api

Medium8d

Search shard timeouts spreading

search-api

Medium3d

Configuration drift across worker replicas

jobs-worker

ISS-208 · Capacity pressureHigh confidence

Database connections are intermittently failing.

Failure rate increased from 0.4% to 2.8% while service capacity grew and the connection pool limit remained fixed.

47 day trend0.4% -> 2.8%
Likely causeConnection pool limit
Recommended actionTrigger coding agent
Point of view

Alerts wait for problems to get loud.

Alerts are good at catching conditions someone knew to define. But many production problems begin as weak, scattered signals: intermittent retries, recurring warnings, partial failures, configuration drift, capacity pressure, and fallback paths quietly doing more work.

Each signal may be too small to page on. Retries hide the immediate failure. Dashboards stay green. No threshold fires. Meanwhile, customers are already experiencing slower requests, occasional errors, or degraded behavior.

Eventually the problem becomes loud enough for the existing stack to notice. By then, the routine fix has become an incident.

Tero continuously reads the signals nobody has time to watch, connects the evidence over time, and raises the issue while it is still small. The goal is not another alert. It is to fix production problems before they become fire drills.

Ben Johnson
Ben Johnson

Founder, Tero
Creator of Vector

01 · Tero Index

See the failures that never cross a threshold.

Tero Index continuously maps the event types across your telemetry and understands what they mean. It identifies failures, retries, dependency problems, terminal states, and capacity pressure even when every service describes them differently.

That gives Tero the whole-estate view an alert does not have. It can connect small patterns across services and over time before any one of them becomes loud enough to cross a threshold.

Index is how Tero knows what is happening before it raises an issue. No new dashboards, alert rules, or data migration required.

Indexproduction · 18 services · 896 event types · 87.3M records/hr
127 event typesgrouped by Servicecolored by Outcome4.8M rec/hr · $334/mo
api-gateway89
analytics-pipeline85
checkout-svc78
billing-svc69
warehouse-sync67
orders-svc61
auth-svc57
search-svc52
fraud-svc48
mobile-api46
recommendations44
feature-store37
cart-svc36
sessions-svc32
notifications29
catalog-svc28
email-worker21
admin-api17
02 · Tero Issues

Turn weak signals into work.

Tero does not hand your team another unexplained anomaly. Each issue shows what is happening, when it started, how it is changing, which services are affected, the likely cause, owner, and raw evidence behind it.

Your team can inspect the problem and decide what happens next without reconstructing weeks of production behavior from scratch.

ISS-208 · ReliabilityOpen · Owner: Platform
High confidence
Capacity pressure

Database connections are intermittently failing.

Failure rate increased from 0.4% to 2.8% over 47 days. Service capacity increased while the connection pool limit remained fixed. Retries recover most requests, but affected users see higher latency and occasional errors.

First seen47 days ago
Servicescheckout-api +2
Failure rate2.8% and rising
Likely causePool limit
Evidence3 event types · 18 raw examples · 2 configuration changes
03 · Tero Actions

Fix routine risk before it becomes urgent.

Tero routes every issue according to confidence, impact, and the required change. High-confidence problems can trigger the coding agent you already use. More complex work can move into Linear, Jira, a runbook, or human review.

Every action starts with the evidence, ownership, history, and recommended next step already attached.

ISS-208OPENHIGH
Opened 18m ago

Database connections are intermittently failing

checkout-api/Platform/Reliability/Capacity pressure
2.8% failure rate47 day trend3 services
AGENT SESSION
> tero.get_issue("ISS-208")
✓ Investigation loaded
service: checkout-api
failure rate: 2.8% and rising
likely cause: connection pool limit
✓ Tero Query access enabled
AGENT ACTION

Trigger the agent you choose.

Start an agent with the completed investigation, ownership, evidence, and Tero Query access already attached.

Claude CodeCodexCursorDevinGitHub CopilotYour own agents
04 · Tero Query

Give agents a head start on the hard ones.

When an issue needs deeper investigation, Tero Query gives agents the complete context behind it: what changed, related patterns, affected services, history, likely causes, and the raw records that matter.

Agents start from an understood issue instead of starting cold against billions of records. They can test hypotheses and prepare the fix without learning every schema and query language first.

TERO QUERY
agent · reliability
tero.get_issue("ISS-208")
-> loaded · 47 days · 3 services
likely cause: pool limit
tero.query({related_to:"ISS-208",
change:"new"})
-> db_connection_refused · +600%
upstream_retry · +412% · same paths
tero.get_records("db_connection_refused",
limit: 3)
3 examples · raw links attached
TERO INDEX
127 FAILURE EVENTS
DatadogCloudWatchClickHouseS3R2Iceberg
01

Catch risk while it is still small.

Find recurring failures, slow degradation, and capacity pressure before they become incidents.

02

Automate the routine fixes.

Send well-understood issues directly to the agents and workflows you already trust.

03

Start hard investigations ahead.

Give engineers and agents the history, relationships, and raw evidence before they begin.

04

Monitor the storage you choose.

Bring the same proactive reliability layer to Datadog, ClickHouse, CloudWatch, and object storage.

See what is quietly failing in production.

Connect Tero read-only. We will show the reliability issues already present in your telemetry, the evidence behind them, and the path to fix each one.

Book a Demo
  • Read-only connection
  • Existing telemetry
  • Evidence-backed issues
  • Findings in minutes