Drops into your stack
A Tero distribution runs inside the collector, agent, or pipeline you already operate, or as a proxy in front. No new agents, no rip-and-replace.
From the creators of Vector.dev
Stop being the telemetry cleanup crew.
Tero finds waste, risk, and noise in your telemetry estate, turns each fix into a reviewable policy, and helps the right team own, deploy, and improve it across the tools you already use.
app.usetero.com/issues
ISS-1247hot-pathCostHigh
Diagnostic logger left on in the request hot path
api-gateway/Platform/opened 11 min ago
A per-request trace from the router middleware is logging on every call to /v2/*. It ships at DEBUG, but the collector is keeping it, and nothing downstream reads it.
Projected cost+$25,032/ yr
Records45M/ day
Data volume11 GB/ day
Resolve
DropDrop at the sourcedrop-api-gateway-middleware-trace
id: drop-api-gateway-middleware-tracename: Drop api-gateway middleware tracelog: match: - resource_attribute: ["service.name"] exact: api-gateway - log_field: LOG_FIELD_BODY contains: "requestContext entered" keep: none
Atomic, reviewable, reversible. Stops the bleed now; fix the code on your own schedule.
Volume45M/day / 11 GB
Resource
service.nameapi-gateway
service.namespaceedge
deployment.environmentprod
Log attributes
event.namerouter_middleware_trace
http.route/v2/checkout
http.request.methodPOST
request.idr_88a1c
Event discoveredFirst seen in the telemetry catalog16 min ago
Hot path check firedA scheduled check flagged this event as an anomaly13 min ago
AI investigationTero verified the anomaly, not a false positive12 min ago
Issue openedPromoted to an issue · policy generated11 min ago
Policy deployedDeploy the generated policy to the estatepending
Resolution verifiedTero confirms the checks clearpending
Your telemetry scaled.
Your controls still run through you.
More AI agents
More code
More features
More deploys
More services
More telemetry
Manual controls
cost dashboardssampling rulesexclusion filterspipelinestiered storage
A 10x bill spike
Your day, derailed
Renewal shock
Chasing engineers
The cost police
Secrets in logs
Exclusion filters sit behind admin settings.
Pipeline configs sit behind gatekeepers and deploys.
Tickets ask busy teams to clean up work they cannot see.
That is how platform teams become the bottleneck.
Policy ControlTelemetry policies
Telemetry policies
break the bottleneck.
A telemetry policy is a small, reviewable control: what it matches, what it changes, where it runs, who owns it, and whether it is working.
Instead of one fragile pile of rules, every fix becomes something a team can review, own, deploy, and improve.
Six properties · no exceptions
01
Atomicone matcher, one action
02
Reviewablesmall enough to read in one sitting
03
Ownabletied to services, teams, events
04
Portableruns in any conforming runtime
05
Measurablehits, drift, downstream impact
06
Composablemost-restrictive precedence, parallel evaluation
Built on an open standard, donated to OpenTelemetry as OTEP-4738 ->
Tero models your telemetry estate and finds the policies your teams need.
Tero connects to the places your telemetry lives, builds a service-level model of events, volumes, owners, destinations, and risk, then runs standing checks for waste, noise, sensitive data, and policy opportunities.
app.usetero.com /cost
Annualized spend$990Kacross 13 services
Potential savings$402K40.6% of current spend
Policy candidates13found across the estate
Tero identified 1 high-priority cost issuesReview issues →
Annualized spend · actual & projectedvaluable spendwaste Tero can cutwithout policies
13 services · 13 policy candidatessorted by potential savings
ServiceCandidatesVolumePotential ▼Spend / yr
kafka195 TB/mo$126K$350K
api-gateway1138 TB/mo$62K$140K
product-reviews120 TB/mo$43K$74K
product-catalog122 TB/mo$42K$81K
load-generator118 TB/mo$41K$66K
auth-svc216 TB/mo$20K$59K
search-svc111 TB/mo$16K$41K
13 services mapped · nothing sampledpotential $402K / yr · 40.6%
Run policies without changing your telemetry stack.
Clean signal
host · ip-10-0-12-44 · us-east-1
Policies sync to the runtime
Approved policies sync to the runtime automatically. Each runtime reports back hits, drops, and impact. No config rollout, no redeploy, no ticket.
10,000 policies, one pass
The router compiles every policy into a single matching pass, built on Hyperscan, so p99 holds constant from 10 policies to 10,000. Orders of magnitude faster.
One workflow gets you out of the middle.
Your teams
each owns and approves its own policiesTero control plane
liveYour infrastructure
Your services
api-gatewayx8
checkoutx4
paymentx3
+ 14 more services
Data plane
OTel Collectorcollector
Vectordrop-in
Tero Edgezig · 6mb
+ any conformant runtime
Destinations
Datadogcandidate found
Splunk
CloudWatch
+ any OpenTelemetry sink
Resolution
Block the problem now. Route the fix to the right place.
Some issues should be fixed in code. Some should stay as policies. Tero gives you immediate control, then routes the follow-up into the tools and agents your teams already use.
ISS-1247HOT PATH · COSThigh
Debug logging exploded in the checkout hot path
A debug log in the request path is shipping on every checkout call.
- Projected cost
- +$25K/yr
- Records
- 45M/day
- Owner
- @platform
ResponseBlock now, fix later
- Rate-limit policy
- Alert team
- Open Jira
- Hand to Claude Code
Finally, telemetry that works for everyone.
Less cleanup for platform. Clearer ownership for teams. Faster action when something goes wrong. Safer, cheaper, cleaner telemetry across the estate.
~40% less telemetry spend, on average
No more renewal sticker shock
A budget you can actually forecast
Stop paying to store data no one queries
Durable discipline, not one-time savings theater
Stop being the cost police
No more 2am fire drills from a runaway log
Stop chasing engineers to clean up after themselves
One place to see every policy: where it runs, what it saves
Stop being everyone's telemetry cleanup crew
Never be the one who blew up the bill
An honest mistake stops being an incident
No memorizing what's safe to log
Debug faster. Signal isn't buried in junk
No telemetry chores derailing your sprint
Built by the team behind Vector.dev · OpenTelemetry maintainers · telemetry policies are now an OpenTelemetry proposal