Nestack Agent Care
Industries / Manufacturing / Calibration agent

Manufacturing AI agent · Calibration

Calibration, Metrology & Out-of-Tolerance Impact AI Agent

When a gauge comes back out of tolerance, assemble the product it measured since the last known-good calibration, mark where the usage record is thin, and hold the scope for a quality engineer.

4–6 weeksTypical delivery
Your stackDeployment
Pre-dispositionEngineer signs
Agent CareAfter launch

What this agent does

Scopes the impact, not the disposition

In
01

A gauge falls due, and its record, interval and last certificate are pulled from the calibration system.

02

A certificate comes back, and the as-found and as-left readings are normalised point by point.

Reason
03

A calibration comes back out of tolerance, and the window opens at the last point the gauge was known good.

04

A drop or a repair sits in the history, and the window widens past the previous certificate to cover it.

05

A gauge moves between cells, and the population is built from usage records, not its registered home.

Decide
06

A reference standard fails, and the working gauges it qualified are cascaded before product is listed.

07

A device gauge fails, and the record is built to ISO 13485:2016 clause 7.6, not the reserved 21 CFR 820.72.

Out
08

A scope is assembled, and it is routed with its as-found data to the named quality engineer.

09

Execute write actions only inside the approval boundaries agreed during implementation.

Product statement

The agent scopes the population; ISO 9001:2015 clause 7.1.5.2 leaves the determination with the organisation, and an engineer signs it.

Example workflow

One out-of-tolerance event, end to end

AgentHuman
1Gauge found out of toleranceCalibration certificate, in-use check, damage report or repair record
2Window anchoredAs-found readings, the previous certificate, interval history and any intervening event
3Population assembledSerials and lots, the characteristics measured, open holes and confidence
4Controls appliedAs-found-against-tolerance checks, usage-record coverage, cascade checks and confidence threshold
No human action required

Stages 1 to 4 run unaided, and nothing is dispositioned at any of them — the agent is scoping, and the engineer's lane opens at the confidence gate.

5DecisionBranches at the confidence threshold
High confidence

Goes to the quality engineer to disposition.

Low confidence

Adds a metrology-lead read first.

Engineer disposition

The scope is held with its as-found data, its open holes and the confidence.

Accept · Widen · Send to metrology review
Dispositioned — impact recorded
6Quality systems updatedOnly where write access and approval policy allow it
7Outcome evaluatedScope changes, holes found late, and IATF 16949:2016 customer notifications
Widenings

Every scope the engineer widens is counted in the evaluation.

What should not run autonomously

Human approval stays in control

Outside the boundary — human approval required8 items
Deciding earlier measurements are still valid.
Dispositioning product in the suspect population.
Telling the customer that suspect product shipped.
Narrowing a window the usage record cannot support.
Automation boundaryAgent acts unaided
Assemble the product measured since the last known-good.
Carry each serial forward with the usage record behind it.
Show which acceptance decisions the as-found error touches.
Mark the holes the engineer should weigh, and hold the scope.
Any write happens inside the boundaries agreed at implementation, never ahead of disposition.
Judging a measurement system capable from a certificate.
Setting or extending a calibration interval.
Starting a correction or a removal.
Changes to interval, tolerance or disposition rules.

Example output

One out-of-tolerance event, annotated

Everything the agent scopes is attached to the record it was drawn from.

Impact-scoping output · single gaugeIllustrative example
Gauge
As-found finding
Error as found
Window anchor
Confidence
Population
Bore gauge, cell C
Reads high at the upper calibration point
+18 µm
Previous certificate
88%
Serials from the usage log
As receivedTaken from the certificate and the usage log on file — nothing on this side is inferred by the agent.
Evidence used As-found data on file Previous certificate Usage log entries
Why this windowIt runs from the last point the gauge was known good — the boundary the engineer weighs.
ActionAcceptWidenSend to metrology review
What the score decidesBelow the configured threshold the scope picks up a metrology read before the engineer sees it.

Value

Where AI adds value

The same four claims, placed at the point in the workflow where each one applies.

Where the value landsValue 01 – 04
Every gaugeFrom the calibration record
03Scoping

Scope from the record

Draw on the certificates, the usage logs and the confirmation rules ISO 10012:2026 sets out.

01Approved path

One bad gauge, months of parts

Recall status and due dates arrive already tracked against the asset register.

02Human review

Send review to the thin evidence

Open holes and low-confidence scopes are marked, so the engineer's read starts where the record is thin.

04Build an evidence trail

The gauge, the standard it was checked against and the engineer who dispositioned stay on the record.

Integrations

Typical integrations

Five system groups connect to the same agent. Which of them are in scope is decided in discovery.

Calibration managementGAGEtrak · CyberMetrics
ProCalV5 · IndySoft
Metrology and gaugingZeiss Calypso · PC-DMIS
Mitutoyo MeasurLink
Quality and MESInfinityQS · SAP QM
Plex · Siemens Opcenter

Agent

Calibration & impact scoping

Reads the record
Scopes the impact
Holds for disposition

ERP and traceabilitySAP · Oracle · Infor
Lot and serial records
Observability & evaluationOpenTelemetry · Langfuse
Supported monitoring/evaluation sources

Integration availability depends on the client's existing systems and API access.

Agent controls

Six layers between the model and the scope

Six controls stacked inward. Whatever survives the lot of them is named in the map beneath.

L6 · Outermost — last line of defenceInward → L1 · closest to the model
L6Rollback / safe modePull scoping back to proposal-only when evaluation or production signals degrade.Roll back
L5Version monitoringTrack model, prompt, interval-rule and tolerance-table changes.Track
L4TraceabilityRecord the certificate, the usage log, the holes and the disposition time.Record
L3Engineer dispositionHold scopes for the named engineer; it governs release, not whether the scope is right.Gate
L2Policy guardrailsTest scopes against configured tolerance tables and cascade rules; a failure returns the scope.Restrict
L1Confidence thresholdsRoute low-confidence scopes to a metrology read before the engineer sees them.Require review
Model coreScope produced — serials and lots, characteristics measured, open holes and confidence
L1 – L2Test whether a scope may stand
L3Puts the disposition in an engineer's hands
L4 – L5Keep the gauge and the standard behind it
L6Holds the impact at unscoped when signals degrade

How Nestack evaluates it

Evaluate the whole scoping workflow — not only the finished population.

Coverage runs the whole depth of the workflow, and every layer is cut by slice.

Surface — the scope the engineer signs
Depth of coverage ▼
E1Final-output evaluationDid every serial in the population trace back to a usage record?
E2Step-level evaluationDid the agent use the right certificate, anchor and tolerance table?
E3Tool evaluationDid it read and write the correct gauge and the correct event?
E4Confidence calibrationDo low-confidence scopes actually attract more widenings?
E5Slice evaluationHow does performance change across specific gauge families?
E6Business outcomeHow many scopes were widened, or corrected after product had shipped?
Floor — the impact the plant answers for

Failure modes

Where each failure originates in the agent

Seven failure modes, set at the stage each one starts in.

Agent lifecycleDirection of processing →
01 · Retrieval1 mode
MG-03

Home-location assumption

Usage read from the register, not from the floor.

Stage gathersCertificates, usage logs, intervals and tolerances
02 · Reasoning2 modes
MG-04

Anchor set too late

The window opens at a certificate a drop preceded.

MG-06

Exception averaged away

A safety-critical characteristic hides in a family.

Stage proposesSerials, characteristics, holes and confidence
03 · Tool / write2 modes
MG-02

Hole closed silently

A gap in the usage log is filled without evidence.

MG-05

In-transit stock missed

Finished goods in transit are left out of scope.

Stage writesOnly where write access and approval policy allow it
04 · Output1 mode
MG-01

Population without evidence

Serials are listed with no chain behind them.

Stage returnsThe scope the engineer dispositions and signs
05 · Change / Version1 mode
MG-07

Silent rule regression

A rule change narrows what the scope will include.

Stage tracksModel, prompt, interval rules and tolerance tables
Sev-1 · scope closed outside the boundary Sev-2 · suspect product left out of scope Sev-3 · record degrades, scope goes to review

Affected slices

No published out-of-tolerance rate to compare

A site-level calibration rate can look healthy while a few gauge families absorb most of the scope widening. Nestack reports the widening rate by slice, not only in total.

Slice performance — reported separately, not only in aggregateIllustrative example
SliceFailure rateLift Lift vs. thresholdStatus
Gauges shared across cells6.4%3.6× Review
Certificates with no as-found4.1%2.3× Review
Reference standards and masters2.8%1.6× Watch
Fixed single-station gauges1.1%0.6× Normal
Bar: scope-widening-rate lift vs. fixed-gauge baseline · scale 0–4.0× · tick marks the 2.0× review threshold 2 of 4 slices over threshold

Evidence-linked improvement

No cycle closes without a new case

A cycle closes when the missed impact is a case the next release has to catch. That suite is what the next out-of-tolerance event is measured against.

Improvement cycle · five stagesSwitchback — the path turns at Improve and returns at Learn
01Detect

Scope-widening rate rises in a gauge family.

02Diagnose

The gauge that came back out of tolerance in March is read back until one cause is left.

03Improve

The correction is numbered and the gauges that produced it are pinned to the note.

04Verify

One impact case still failing is enough to keep the release on the bench.

05Learn

The case is kept, and the interval rules are updated in the same change.

Learn → DetectThe return edge. The next event is scoped against a suite one case longer.

Typical build scope

Twelve workstreams across six weeks

The build scope read against the delivery timeline. Week structure follows the six-week plan — discovery, sources, impact scoping, evaluation, integration, then production validation and handover.

Workstream Week 1Week 2Week 3Week 4Week 5Week 6
01Calibration-workflow and scoping boundary definition.
02Calibration and metrology data assessment.
03Tolerance, interval and cascade mapping and rule mapping.
04Certificate ingest and usage-log mapping.
05Impact scoping and evidence binding.
06Confidence scoring and hole routing.
07Engineer disposition workflow.
08Quality and ERP-system integration.
09Recall and impact cases.
10Guardrails and disposition controls.
11Gauge-trail instrumentation.
12Deployment, documentation and Agent Care handover.
12 workstreams · 6 weeks · bar shows the weeks a workstream is active — several run in parallel Final scope and sequence confirmed in discovery

Engagement tiers

What each tier includes

Rows are the capabilities named in each tier's scope. Higher tiers include everything below them.

Capability✓ in scope · — not at this tier PilotOne site, one gauge family ProductionProduction calibration systems AdvancedMultiple sites / systems
Introduced at Pilot
Scoping to your records and rules
Engineer disposition
Impact-scoping baseline
Introduced at Production
Reporting by gauge family
Disposition workflow in your systems
Approved write-back
Measurement-system integration
Introduced at Advanced
Multi-standard tolerance rules
Multi-stage quality approvals
High gauge volume
Multi-site calibration controls
Build price From $5,000 From $8,000 Custom quote
Final build priceConfirmed after discovery based on integrations, workflow complexity, transaction volume, approval controls and deployment requirements.
Separate from buildBuild pricing is separate from recurring Agent Care, which covers managed monitoring, evaluations, incidents and verified improvements after launch.

What we need from you

What you bring, and what we build with it

Each input maps to a piece of build scope and a week in the delivery timeline.

You bringWe build with it
01Your gauge register and interval rules Certificate ingestion and usage-log mappingWeek 1
02Representative certificates, as-found included Scoping baseline, evidence indexing and gauge bindingWeek 2
03Your tolerance tables and cascade rules Tolerance, interval and cascade-rule mappingWeek 1
04Access to relevant APIs, feeds or exports Calibration and metrology assessment, then integration setupWeek 2
05Impacts you would not want scoped Out-of-tolerance cases and the evaluation suiteWeek 4
06What no impact scope may omit Confidence scoring, hole routing, guardrails and disposition controlsWeek 3
07A named quality engineer to disposition scopes Engineer disposition workflow, then pilot and production validationWeeks 5–6
Nothing else is required Deployment, documentation and Agent Care handover are ours.

Delivery timeline

Four phases across six weeks

Each band lands where the work lands, which puts evaluation and the first live recalls in one week.

Phase W1W2W3W4W5W6
Discovery W1
Build W2 – W3
Evaluate W4 – W5
Pilot & Launch W5 – W6
Week focus W1Calibration workflow discovery, rule mapping and the automation boundary W2Source integration and the impact-scoping baseline W3Impact scoping, confidence logic and disposition controls W4Evaluation suite, anchor and cascade checks and failure-mode testing W5Quality-system integration, pilot events and targeted corrections W6One calibration cycle run under the metrology lead, then Agent Care handover
Reading the bandEach bar covers only the weeks its work is named in. The week 5 overlap is work, not padding.
At the end of W6The last checks clear on live events, and Agent Care assumes monitoring.
DurationSix-week plan shown · typical delivery 4–6 weeks depending on scope confirmed in discovery.

Next step · Manufacturing AI agent

Build an impact-scoping agent around your out-of-tolerance procedure.

Show us your gauge register and your usage logs. Who tells the customer that suspect product shipped? Your named quality manager — IATF 16949:2016 clause 7.1.5.2.1 makes it a record.

Nestack Agents · Calibration & impact scopingAGT-MFG-16 · Agent Care available after launch