HealthcareManaged AI Agents
Healthcare AI Agents,
Monitored for Safety
Nestack Agent Care helps healthcare organizations monitor, evaluate, and optimize AI agents used for clinical documentation, triage, scheduling, and care coordination — before small AI errors become patient-safety or compliance risks.
Scope
Healthcare AI agents we build & manage
Nineteen archetypes — from patient intake and capacity to risk adjustment and underpayment recovery.
Patient access5
Clinical & hospital5
Revenue cycle5
Payer & compliance4
Observability
What we make observable
Every healthcare agent session is traced across ten layers — what we capture and the evidence we keep.
- Evidence we keepGoalconstraintsapproval requirement
- Evidence we keepSourceversiontimestamprelevancecitation
- Evidence we keepPlanned sequenceactual sequenceworkflow status
- Evidence we keepTask statusresultretryfailure reason
- Evidence we keepTool nameversioninputoutputpermissionresult
- Evidence we keepModel/versioninput/outputtoken usagelatencycost
- Evidence we keepEvaluation typemetricthresholdresult
- Evidence we keepGuardrail targettriggeractionenforcement result
- Evidence we keepReviewerdecisioncorrectionreason
- Evidence we keepOutcome statusbusiness resultlinked trace
Catalog
Failure modes
Filter failure modes by where they occur in the agent lifecycle—from goals and retrieval to tools, evaluations, guardrails and outcomes.
H-01PHI leakage in outputs, logs, or tool callsSEV-1
H-02Hallucinated clinical content — dosage, interactions, medical factsSEV-1
H-03Wrong-patient retrieval — patient A data in patient B contextSEV-1
H-04Triage under-escalation — urgent symptoms not flaggedSEV-1
H-05Stale medical coding after ICD-10 / CPT updatesSEV-2
H-06Consent scope violation — data used beyond consented purposeSEV-1
H-07Over-refusal blocking legitimate clinical workflowsSEV-3
H-08Prompt injection via patient free-text or uploaded documentsSEV-1
H-09EHR schema drift after Epic / Cerner upgradesSEV-2
H-10Cost blowout on long patient historiesSEV-3
H-11Medication-reconciliation omissions — home meds dropped or duplicated at transitionsSEV-1
H-12Scribe fabrication — exam findings documented that never occurredSEV-1
H-13Prior-auth criteria misapplication — wrong payer policy or versionSEV-2
H-14Referral-routing errors — wrong specialty or urgency windowSEV-2
H-15Demographic bias in triage and symptom assessmentSEV-1
H-16Patient-instruction mismatch — reading level and translation errors in discharge materialsSEV-3
H-17Sycophantic capitulation — agent reverses a correct clinical answer under user pushbackSEV-1
H-18Interactive collapse — competence drops sharply from static Q&A to multi-turn dialogueSEV-1
H-19Failure to abstain — definitive answers issued on insufficient informationSEV-2
H-20Clinical calculation & unit-conversion errors — eGFR, dosing, severity scoresSEV-1
H-21Cognitive-bias anchoring — locks onto early or planted hypotheses, fails to reviseSEV-2
H-22Miscalibrated confidence — high stated certainty on wrong answers breaks escalation logicSEV-2
H-23Long-record information loss & negation blindness — buried findings and "not documented" errorsSEV-2
H-24Automation bias — rubber-stamp review decay, notes/messages signed without scrutinySEV-1
H-25Clinician deskilling — unaided performance erodes under sustained agent relianceSEV-2
H-26Source-of-truth destruction — encounter audio deleted before verification is possibleSEV-1
H-27Silent clinical omission — content that was said is dropped from the noteSEV-2
H-28Speaker misattribution — diarization assigns patient statements to clinician or vice versaSEV-2
H-29Accent/dialect ASR degradation — higher transcription error for non-native speakersSEV-2
H-30Copy-forward error propagation — a small note error migrates into orders and referralsSEV-2
H-31Temporal/contextual collapse — history, hypotheticals, or family history logged as active problemsSEV-2
H-32Note bloat — padded, redundant documentation burying the clinical signalSEV-3
H-33Regulated-device boundary crossing — admin/wellness agent drifts into unapproved clinical decision supportSEV-1
H-34Unlicensed practice of medicine — agent presents as or is mistaken for a licensed clinicianSEV-1
H-35Automated adverse determinations — coverage denials without meaningful licensed-reviewer decisionSEV-1
H-36Missing AI disclosure — patient-facing clinical messages sent without state-mandated noticeSEV-2
H-37Ambient recording without all-party consent — wiretap/CIPA exposure and false consent boilerplateSEV-1
H-38Documentation/billing inflation — one-way upcoding creating False Claims Act exposureSEV-1
H-39Attestation & authorship integrity — AI notes signed or bulk-signed without review or provenanceSEV-2
H-40RAG knowledge-base poisoning — crafted documents steer clinical answers as "sourced" guidanceSEV-1
H-41Tool/API privilege escalation — agent writes to EHR fields or orders beyond its scopeSEV-1
H-42Insecure agent-to-agent orchestration — confused-deputy across a multi-agent chainSEV-2
H-43Patient identity spoofing — voice-cloned or socially-engineered impersonation of a patientSEV-1
H-44Model extraction / membership inference — querying the model to infer or reconstruct training PHISEV-2
H-45Jailbreak-driven prescription/eligibility fraud — rules rewritten to unlock unsafe dosing or qualificationSEV-1
H-46Denial-of-service / unbounded consumption — availability attack on a point-of-care assistantSEV-2
H-47Guardrail regression — unvalidated model upgrade makes a patient bot dispense harmful adviceSEV-1
H-48Binding commitments — agent states a price, coverage, or promise the organization is held toSEV-2
H-49Phantom appointments — agent confirms bookings that never land in the scheduling systemSEV-2
H-50Dead-end loops — no working escape to a human blocks access to careSEV-2
H-51Accessibility abandonment — elderly, speech-impaired, or non-digital patients systematically shut outSEV-2
H-52Voice-agent misrecognition — sound-alike drug names and garbled identifiers reach refill/order pathsSEV-1
H-53Missed crisis signal — self-harm cues unrecognized in non-clinical (scheduling, billing) channelsSEV-1
A · Patient-intake & triage assistants
PT-01Wrong or duplicate chart01 · Identity / retrievalSEV-1
PT-02Stale external record01 · Identity / retrievalSEV-2
PT-03Non-English capture thins02 · Intake captureSEV-3
PT-04Red flag not surfaced03 · StructuringSEV-1
PT-05Wrong symptom code03 · StructuringSEV-2
PT-06Over-escalation floods review04 · Handoff / writeSEV-3
PT-07Silent protocol regression05 · Change / VersionSEV-2
B · Clinical documentation / scribe agents
CD-01Accented speech degrades01 · CaptureSEV-3
CD-02Negation flipped02 · TranscriptionSEV-1
CD-03Dose or laterality misheard02 · TranscriptionSEV-2
CD-04Content nobody said03 · DraftingSEV-1
CD-05Said but not drafted03 · DraftingSEV-2
CD-06Signed without reading04 · Review / signatureSEV-1
CD-07Silent template regression05 · Change / VersionSEV-2
C · Prior-authorization & claims-coding agents
PA-01Requirement missed01 · Requirement lookupSEV-1
PA-02Superseded payer criteria01 · Requirement lookupSEV-2
PA-03Necessity link unsupported02 · Criteria & codingSEV-1
PA-04Upward code drift02 · Criteria & codingSEV-1
PA-05Over-disclosure in the packet03 · SubmissionSEV-2
PA-06Pend lost between channels04 · TrackingSEV-3
PA-07Silent edit-file regression05 · Change / VersionSEV-2
D · Member-services copilots
MS-01Wrong plan variant01 · Identity / enrolmentSEV-2
MS-02Rider not applied02 · RetrievalSEV-2
MS-03Stale network status02 · RetrievalSEV-2
MS-04Cost share misquoted03 · DraftingSEV-3
MS-05Answered as a denial03 · DraftingSEV-1
MS-06Grievance never logged04 · Routing / intakeSEV-1
MS-07Silent benefit drift05 · Change / VersionSEV-2
E · Appointment & care-coordination agents
AC-01Prerequisite not in place01 · Request / retrievalSEV-2
AC-02Wrong visit type booked02 · Rule fitSEV-2
AC-03Sequence inverted02 · Rule fitSEV-1
AC-04Template rule broken03 · Booking / writeSEV-1
AC-05Reminder to a stale contact04 · Chase & contactSEV-1
AC-06Referral loop left open04 · Chase & contactSEV-3
AC-07Backfill narrows access05 · Change / VersionSEV-3
F · Denials-management & AR-follow-up agents
DN-01Catch-all reason code01 · Remittance readSEV-3
DN-02Adjustment read as patient debt01 · Remittance readSEV-1
DN-03Wrong remedy chosen02 · ClassificationSEV-2
DN-04Wrong level or missed window02 · ClassificationSEV-1
DN-05Packet proves the wrong thing03 · Evidence & packetSEV-2
DN-06Written off, not appealed04 · Filing / writeSEV-1
DN-07Silent payer-rule drift05 · Change / VersionSEV-2
G · Post-discharge & care-gap outreach agents
PD-01Outreach after death01 · EligibilitySEV-1
PD-02Gap closed elsewhere02 · TargetingSEV-3
PD-03Reach skews digital02 · TargetingSEV-3
PD-04Stale number reached03 · Send / contactSEV-1
PD-05Advice in the message03 · Send / contactSEV-1
PD-06Logged, not escalated04 · Reply / escalationSEV-2
PD-07Outreach fatigue05 · Change / VersionSEV-3
H · Patient-message reply-drafting agents (EHR in-basket)
PM-01Urgent read as routine01 · Intake / sortingSEV-1
PM-02Wrong patient or encounter02 · RetrievalSEV-1
PM-03Refill without the check02 · RetrievalSEV-2
PM-04Result answered too early03 · DraftingSEV-1
PM-05Advice nobody gave03 · DraftingSEV-1
PM-06Sent on a glance04 · Review / sendSEV-1
PM-07Silent routing regression05 · Change / VersionSEV-3
I · Surgical-scheduling & OR-utilization agents
SS-01Preference card out of date01 · Posting / retrievalSEV-2
SS-02Pre-op requirement missed01 · Posting / retrievalSEV-2
SS-03Duration underestimated02 · Estimate & fitSEV-2
SS-04Posted without confirmed cover03 · Schedule / writeSEV-1
SS-05Booked case bumped03 · Schedule / writeSEV-1
SS-06Block released too late04 · Chase & releaseSEV-3
SS-07Utilisation narrows access05 · Change / VersionSEV-3
J · Medication-reconciliation & pharmacy-verification agents
MR-01Discontinued drug kept01 · Source assemblySEV-2
MR-02Allergy not carried across01 · Source assemblySEV-2
MR-03Strength or form mismatch02 · MatchingSEV-2
MR-04Two names, one drug02 · MatchingSEV-3
MR-05Fill beats the patient03 · ComparisonSEV-1
MR-06Buried in volume04 · Handoff / writeSEV-3
MR-07Silent source-rule change05 · Change / VersionSEV-1
K · Utilization-management & medical-necessity review agents
UM-01Wrong criteria edition01 · Criteria lookupSEV-1
UM-02Wrong level of care compared01 · Criteria lookupSEV-3
UM-03Evidence present, not found02 · Record retrievalSEV-1
UM-04Circumstances flattened03 · Criteria matchingSEV-1
UM-05Summary reads as a verdict04 · Summary / handoverSEV-1
UM-06Rationale not the reviewer's04 · Summary / handoverSEV-2
UM-07Read-through decays05 · Drift / VersionSEV-2
L · Capacity & patient-flow agents (command centre)
FW-03Stale bed-status feed01 · RetrievalSEV-3
FW-04Deterioration language creep02 · ReasoningSEV-1
FW-06Discharge date read as order02 · ReasoningSEV-1
FW-02Placement written past a ratio limit03 · Tool / writeSEV-1
FW-05Isolation rule bypassed on write03 · Tool / writeSEV-2
FW-01Constraint dropped on handoff04 · OutputSEV-2
FW-07Silent threshold drift05 · Change / VersionSEV-2
M · Risk-adjustment & RADV audit-defence agents
RA-03Excluded source accepted01 · RetrievalSEV-3
RA-04Leading provider query02 · ReasoningSEV-1
RA-06Condition carried as current02 · ReasoningSEV-1
RA-02Unlogged accept on write03 · Tool / writeSEV-1
RA-05Identified deletion left open03 · Tool / writeSEV-2
RA-01Excerpt not reconstructable04 · OutputSEV-2
RA-07Silent model-year drift05 · Change / VersionSEV-2
N · Patient price-estimate & financial-clearance agents
GF-03Stale chargemaster rate01 · RetrievalSEV-3
GF-04Quote-certain phrasing02 · ReasoningSEV-1
GF-06Ancillary marked waivable02 · ReasoningSEV-1
GF-02Estimate released unchecked03 · Tool / writeSEV-1
GF-05AGB cap bypassed on write03 · Tool / writeSEV-2
GF-01Required field omitted04 · OutputSEV-2
GF-07Silent moratorium drift05 · Change / VersionSEV-2
O · Eligibility & benefits-verification agents
EB-03Stale coverage signal01 · RetrievalSEV-3
EB-04Authorisation read as cleared02 · ReasoningSEV-1
EB-06Sequence assumed, not confirmed02 · ReasoningSEV-1
EB-02Coverage read as payment03 · Tool / writeSEV-1
EB-05Discovery scope exceeded03 · Tool / writeSEV-2
EB-01Plan type not distinguished04 · OutputSEV-2
EB-07Silent rule drift05 · Change / VersionSEV-2
P · Clinical-documentation-integrity (CDI) query agents
DQ-03Superseded value cited01 · RetrievalSEV-3
DQ-04Leading-query construction02 · ReasoningSEV-1
DQ-06Indicator interpreted, not quoted02 · ReasoningSEV-1
DQ-02Response inferred, not entered03 · Tool / writeSEV-1
DQ-05Query resent without new indicators03 · Tool / writeSEV-2
DQ-01Financial rationale attached04 · OutputSEV-2
DQ-07Silent trigger-point drift05 · Change / VersionSEV-2
Q · Appeals & grievances agents (health plan)
GV-03Late evidence not retrieved01 · RetrievalSEV-3
GV-04Keyword-driven classification02 · ReasoningSEV-1
GV-06Clock started at assignment02 · ReasoningSEV-1
GV-02Wrong clock applied at write03 · Tool / writeSEV-1
GV-05Grievance routed as an appeal03 · Tool / writeSEV-2
GV-01Notice missing the cited criterion04 · OutputSEV-2
GV-07Silent state-rule drift05 · Change / VersionSEV-2
R · Credentialing & provider-directory agents
EP-03Non-primary source relied on01 · RetrievalSEV-3
EP-04Attestation read as verified02 · ReasoningSEV-1
EP-06Certification stands in for judgement02 · ReasoningSEV-1
EP-02NPDB data redisclosed03 · Tool / writeSEV-1
EP-05File treated as directory-live03 · Tool / writeSEV-2
EP-01Expirable date miscalculated04 · OutputSEV-2
EP-07Silent verification-window drift05 · Change / VersionSEV-2
S · Underpayment-recovery & contract-compliance agents
UR-03Contract version behind the load01 · RetrievalSEV-3
UR-04Plan-type assumed, not confirmed02 · ReasoningSEV-1
UR-06Wrong lookback applied02 · ReasoningSEV-1
UR-02Overpayment finding dropped03 · Tool / writeSEV-1
UR-05Standing not confirmed03 · Tool / writeSEV-2
UR-01Silent denial read as routine04 · OutputSEV-2
UR-07Silent lookback-rule drift05 · Change / VersionSEV-2
Guardrails
Critical guardrails for Healthcare agents
Ten controls that hold regardless of prompt, plan or pressure. Open one to see what it protects, what trips it, what the agent is forced to do, who may release it, and what is written to the record.
GR-01No cross-patient retrieval in any contextNo override
Target
EHR queries, document retrieval and context assembly across every clinical and administrative agent
Trigger
Retrieved content carries identifiers not matching the session’s verified patient binding
Action — enforced
Platform blocks the response, purges the foreign record from context, and rebinds retrieval to the verified patient
Human override
None — cannot be overridden in session
Logged evidenceSession id · bound MRN · blocked record id · retrieval hash · timestamp
GR-02No instruction embedded in patient documents ever executedNo override
Target
Patient free-text, uploaded records, referral letters and knowledge-base documents entering agent context
Trigger
Directive-shaped content detected during parsing, retrieval or RAG grounding
Action — enforced
Platform neutralizes the content, quarantines the source, and answers only from vetted clinical references
Human override
None — cannot be overridden in session
Logged evidenceDocument hash · detection pattern · quarantine id · parser version · timestamp
GR-03No PHI beyond consented purpose and BAA scopeOverride defined
Target
PHI in outputs, logs, telemetry and every tool call leaving the clinical boundary
Trigger
Data flow targets an endpoint without a HIPAA BAA or exceeds consent scope
Action — enforced
Platform blocks the flow, redacts PHI from telemetry, and records the attempt for breach-clock evidence
Human override
Privacy officer — approve under an executed BAA and consent-scope record
Logged evidenceFlow id · endpoint · BAA reference · consent scope version · detection timestamp
GR-04No dosage or unit calculation released unverifiedOverride defined
Target
Dose, eGFR, severity-score and unit-conversion outputs across clinical drafting and voice channels
Trigger
Numeric clinical output lacks deterministic-calculator confirmation or falls outside safe ranges
Action — enforced
Platform withholds the number, recomputes through the validated calculator, and flags sound-alike drug matches for confirmation
Human override
Clinical pharmacist — verify and release through the order-review queue
Logged evidenceCalculation id · inputs · calculator version · range check result · releaser identity · timestamp
GR-05No downgrade of an urgent triage signalOverride defined
Target
Symptom triage, scheduling and billing conversations where urgency or crisis cues surface
Trigger
Model proposes lower acuity, or crisis language appears in any non-clinical channel
Action — enforced
Platform holds acuity at floor, routes to the clinical escalation queue, and keeps the human pathway open
Human override
Triage nurse lead — re-grade with documented clinical rationale
Logged evidenceEncounter id · cue transcript span · acuity history · queue id · timestamp
GR-06No EHR write or order beyond granted scopeOverride defined
Target
Agent write paths into EHR fields, order entry and downstream clinical systems
Trigger
Write or order call exceeds the agent’s scoped privileges or arrives via another agent
Action — enforced
Platform denies the call, logs the confused-deputy attempt, and permits only scoped, attributable writes
Human override
EHR security administrator — extend scope through the access-governance workflow
Logged evidenceCall id · requested scope · granted scope version · denial code · timestamp
GR-07No AI-drafted note signed without clinician attestationOverride defined
Target
Ambient-scribe notes, message drafts and documentation entering the legal medical record
Trigger
Signature or bulk-sign attempted without recorded clinician review of the draft
Action — enforced
Platform blocks the signature, preserves source audio until verification, and watermarks AI-drafted provenance in the record
Human override
Attending clinician — sign after per-note review captured in the attestation log
Logged evidenceNote id · draft hash · audio retention state · reviewer identity · attestation timestamp
GR-08No coverage denial without licensed-reviewer determinationOverride defined
Target
Prior-auth, utilization-management and coverage decisions issued through payer-facing agents
Trigger
Adverse determination queued without an individualized licensed-reviewer decision on file
Action — enforced
Platform holds the denial, packages the case for licensed review, and releases only reviewer-authored specific reasons
Human override
Medical director — issue the determination under their licence in the UM system
Logged evidenceCase id · policy version · reviewer licence id · determination text hash · timestamp
GR-09No drift into unapproved clinical decision supportOverride defined
Target
Admin, wellness and scheduling agents operating outside FDA-cleared clinical functions
Trigger
Output pattern crosses into diagnosis, treatment selection or presents as a licensed clinician
Action — enforced
Platform suppresses the output, states the agent’s non-clinical role, and routes the question to clinical staff
Human override
Chief medical information officer — enable only for functions with documented regulatory sign-off
Logged evidenceMessage id · boundary classifier verdict · disclosure served · routing record · timestamp
GR-10No patient conversation without AI disclosure and human escapeOverride defined
Target
Every patient-facing clinical message, voice call and chat session the platform mediates
Trigger
Session starts without the mandated AI notice or a working human handoff path
Action — enforced
Platform injects the disclosure, verifies the escalation route live, and suspends the channel if handoff fails
Human override
Patient experience director — modify wording only via the approved template library
Logged evidenceSession id · disclosure version · handoff test result · suspension state · timestamp
Oversight
Human review — triggers, decisions and evidence
When a defined risk trigger fires, the affected action is routed to a named reviewer. Every decision is recorded with its correction, escalation and final outcome for full traceability.
- ConfidenceLow-confidence clinical answer
- Financial impactCoverage or billing decision
- Identity / change riskPatient-identity mismatch
- Irreversible actionOrder or note sign-off
- Policy riskConsent or disclosure conflict
- Safety controlGuardrail override
- Quality failureFailed critical evaluation
- Revieweridentity + role
- Decisionapprove / reject / amend
- Correctionwhat changed
- Escalationwho, why and severity
- Final outcomereleased / blocked / returned for rework
7 triggers · any one halts the agent
1 record · 5 fields, every time
Compliance
Regulatory mapping
- 01 Goal
- 02 Retrieval
- 03 Workflow
- 04 Task
- 05 Tool
- 06 LLM
- 07 Evaluation
- 08 Guardrail
- 09 Human review
- 10 Outcome
HIPAA Privacy Rule & business associates (US)
An LLM vendor that creates, receives or maintains PHI needs a written business associate contract binding its subcontractors alike; each use stays at the minimum necessary, and a decedent’s PHI remains protected for 50 years.
45 CFR 164.502(e) · 164.504(e) · 164.502(b)(1)
Lifecycle layer:02 Retrieval · 05 Tool · 08 Guardrail · 10 Outcome
- H-01
- H-06
- H-44
- PA-05
- EB-05
- PD-01
Evaluations
Baseline evaluation suite — in detail
Baseline evaluations are completed during onboarding and repeated based on the selected plan. Agents that fail critical checks remain restricted until they pass re-testing.
- Evaluation suites
- 40
- Failure modes covered
- 186 of 186
- Cases · 10% rotated / quarter
- 3,010
- Audit-ready scorecard
- Monthly
Output evaluation7 suites · 540 cases
50 casesPHI-leak setcatches H-01 · H-06
200 casesRed-flag escalation recallcatches H-04
150 casesGrounding / hallucinationcatches H-02
40 casesIdentity-swap setcatches H-03
80+ patternsInjection suitecatches H-08
100 casesRefusal calibrationcatches H-07
100 cases (where applicable)Coding accuracycatches H-05
90 casesMed-rec integritycatches H-11
80 casesNote-grounding setcatches H-12
80 casesAuth-criteria setcatches H-13
70 casesReferral-routing setcatches H-14
100 casesTriage-fairness pairscatches H-15
60 casesInstruction-clarity setcatches H-16
60 casesSchema-drift regressioncatches H-09
50 casesLong-history cost benchcatches H-10
70 casesIntake identity and red-flag setcatches PT-01–07
70 casesScribe fidelity setcatches CD-01–07
70 casesAuthorisation evidence setcatches PA-01–07
70 casesMember benefit answer setcatches MS-01–07
70 casesBooking gate setcatches AC-01–07
70 casesDenial remedy setcatches DN-01–07
70 casesOutreach eligibility setcatches PD-01–07
70 casesIn-basket reply setcatches PM-01–07
70 casesTheatre posting setcatches SS-01–07
70 casesReconciliation source setcatches MR-01–07
70 casesMedical-necessity review integrity setcatches UM-01–07
70 casesCommand-centre placement safety setcatches FW-01–07
70 casesRisk-adjustment submission defensibility setcatches RA-01–07
70 casesGood-faith estimate integrity setcatches GF-01–07
70 casesFinancial-clearance verification setcatches EB-01–07
70 casesCompliant CDI query setcatches DQ-01–07
70 casesAppeals and grievances handling setcatches GV-01–07
70 casesCredentialing verification setcatches EP-01–07
70 casesRecovery compliance setcatches UR-01–07
60 casesClinical reasoning robustness setcatches H-17 · H-18 · H-19 · H-20 · H-21 · H-22
80 casesAmbient documentation integrity setcatches H-23 · H-26 · H-27 · H-28 · H-29 · H-30 · H-31 · H-32
40 casesClinician oversight and attestation setcatches H-24 · H-25 · H-38 · H-39
50 casesRegulated scope and consent setcatches H-33 · H-34 · H-35 · H-36 · H-37
80 casesAdversarial and security hardening setcatches H-40 · H-41 · H-42 · H-43 · H-44 · H-45 · H-46 · H-47
60 casesPatient front-door and access setcatches H-48 · H-49 · H-50 · H-51 · H-52 · H-53
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Domain-expert review
Client-designated subject-matter experts review evaluation criteria, pass thresholds and industry-specific risks before baseline approval.
Test-case rotation
Evaluation cases are refreshed regularly to reduce memorisation, limit overfitting and maintain meaningful performance measurement.
Scorecard integration
Scorecards compare results with the approved baseline, show performance trends and flag material declines for review and escalation.
Client-specific extensions
Where included in scope, evaluations may be expanded using approved incidents, workflows, policies, data patterns and industry-specific risks.
Monitoring
Change-aware monitoring
When agent performance changes, Nestack correlates the shift with changes to the agent, prompt, model, tools, knowledge base, guardrails and evaluation suite.
- Week 1 · 97.9%
- Week 2 · 97.8%
- Week 3 · 98.0%
- Week 4 · 97.9%
- Week 5 · 98.1%
- Week 6 · 97.9%
- Week 7 · 98.0%
- Week 8 · 92.9%
- Week 9 · 92.7%
- Week 10 · 97.9%
- Week 11 · 98.0%
- Week 12 · 98.1%
Week readouthover or select
Week 8of 12
- 03Modelopus 4.6 · 0612
92.9%Clinical-grounding rate
- 7 layers stamped on every run · 12-week window
- Catches H-47 · guardrail regression after a model upgrade
Something missing?
Don’t see your agent’s issue here?
Every AI environment is different. Share what you’re seeing, and we’ll review the behaviour, assess the risk and recommend the evaluations or controls that may help.
No commitment. Even if you never become a client, we’ll tell you what we think is happening.
Process
Universal incident runbook
Severity is assigned based on business impact, customer harm, data exposure, operational disruption and overall scope.
- SEV-1 Critical
- SEV-2 Major
- SEV-3 Moderate
- SEV-4 Minor
Automated monitoring or human review identifies unusual behaviour. Alerts are recorded and routed according to severity.
Outcomes
Not just that it ran.
What it delivered.
Observability shows the agent ran. It can’t show the note was signed or what the work cost. Where outcome data exists, we trace each result to its session — and a named reviewer signs off the month.
- Issued
- Monthly, per engagement
- Traced
- Every figure to its session
- Signed
- By your engagement reviewer
- Used for
- Client reporting, partner review, the AgentOps scorecard
Nestack AgentOps
Healthcare fleet · monthly statement
- Documentation drafted and signed9,640
- Prior authorisation submitted2,180
- Referral routed1,460
- Coding case completed5,320
- Care-gap reviews completed12 of 12
- Workflows delivered18,600
- Outcome success rate99.0%
- Human correction required186 · 1.0%
Every figure linked to its source trace · exportable for review and audit support
Cost control
Keep healthcare AI agent costs under control
Token spend is monitored, optimised and reported as part of Agent Care — and savings never come at the expense of quality, because every change is verified against your evaluation baseline.
We review token spend by agent, workflow, model, and session so you can understand where AI costs are coming from.
Running healthcare AI agents in production?
Get a free assessment of one agent. We’ll review its behaviour, run a baseline evaluation and highlight potential risks and performance gaps.
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