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Insurance AI agent · Life underwriting

Life & Annuity New-Business Underwriting AI Agent

Order the evidence a case needs, summarise the medical record with every finding tied to its page, apply the carrier's accelerated-underwriting rules, and hand the underwriter a file they can decide on and explain.

Typical delivery
4–6 weeks
Deployment
Your stack
Underwriter review
Pre-decision
After launch
Agent Care

What this agent does

Assembles the evidence, never the decision to underwrite

In

  1. 01

    An application arrives, and the agent orders the evidence still missing under the signed authorization on file.

  2. 02

    An APS, lab panel or Rx report comes back, and the agent reads it into the underwriting file.

Reason

  1. 03

    Each medical finding in the summary carries the page of the source record it was drawn from.

  2. 04

    The carrier's own accelerated-underwriting rules are applied to the case, not a generic ruleset.

  3. 05

    Genetic-information handling follows the state configured for the case, never one assumed rule.

Decide

  1. 06

    Ambiguous findings, contradictions and low-confidence reads are flagged for the underwriter.

  2. 07

    The assembled file is routed to the underwriter to decide.

Out

  1. 08

    The evidence, its source page, the summary and the underwriter's classification stay on the file.

  2. 09

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

Product statement

The agent assembles the file; the underwriter classifies the risk and decides, and is the one who can explain why.

Example workflow

One case, application to file

  1. 1Application receivedApplication, medical questions, requested amount and signed authorization
  2. 2Evidence orderedAPS, labs, prescription history, MIB and MVR — each against the authorization on file
  3. 3File summarisedFindings tied to source pages, flags and accelerated-underwriting eligibility
  4. 4Controls appliedAuthorization validity, permissible-purpose checks, AU-rule fit and confidence threshold

No human action required

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

5DecisionBranches at the confidence threshold
High confidence

Goes to the underwriter's queue as a completed file.

Low confidence

Routes the case out of the accelerated path for a fluid order.

Underwriter review

The file is held with its evidence, its flagged findings and the confidence.

Decide · Request more evidence · Escalate

Decided — released for issue

  1. 6Policy admin system updatedOnly where write access and approval policy allow it
  2. 7Outcome evaluatedEvidence accuracy, flag outcomes, classification agreement and post-issue corrections

Evidence requests

Every evidence request is counted in the evaluation.

What should not run autonomously

Human approval stays in control

Outside the boundary — human approval required

8 items

  • Classifying a risk or applying a mortality or morbidity rating.
    • Setting a premium, rider price or annuity rate.
    • Declining, postponing or issuing a counter-offer.
    • Sending an adverse-underwriting-decision notice.

  • Automation boundary

    Agent acts unaided

    • ✓Order the evidence a case needs and read it into the file.
    • ✓Summarise medical findings with each one tied to its source page.
    • ✓Apply the carrier's own accelerated-underwriting rules to the case.
    • ✓Flag ambiguous or contradictory findings, and hold.

    Any write happens inside the boundaries agreed at implementation, never ahead of the underwriter.

    • Requesting or using a genetic-test result where the case's state prohibits it.
    • Pulling APS, Rx, MIB or MVR data without a valid signed authorization on file.
    • Treating a vendor's proprietary-process claim as sufficient on its own.
  • Changes to accelerated-underwriting rules or state configuration.

Example output

One finding in the file, annotated

Everything the agent summarises is attached to the source page it came from.

Underwriting-file output · single case

Illustrative example
Case
45-year-old, $1M term case
Summarised finding
Treated hypertension, well-controlled per the most recent visit noted
Source page
APS p. 4
Evidence type
Attending physician statement
Confidence
89%
Attribution
Underwriter of record and licence ID

As received

Taken from the ordered evidence and the page cited — nothing on this side is written by the agent.

Evidence used

  • APS record
  • Prescription history
  • MIB report

Why this finding

It states what the record shows, not a diagnosis or a rating.

What the score decides

Below the configured threshold before it reaches the approver.

Action

DecideRequest more evidenceEscalate

Value

Where AI adds value

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

Where the value lands

Value 01 – 04

Every case

From the evidence ordered

03Assembly

Assemble from the file

Draw on the evidence ordered and the carrier's configured accelerated-underwriting rules.

01Approved path

The reason must name the source

Every adverse reason names its source page, not a boilerplate guideline reference.

02Human review

Point the underwriter at what needs

Ambiguous findings and genetic-information items are flagged with the page behind them, so review starts where the source matters.

04

Build an evidence trail

The evidence, the source it came from and the underwriter who classified it stay on the file.

Integrations

Typical integrations

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

  • Medical evidence sources

    • APS
    • MIB
    • Rx history
    • ExamOne
    • Quest
    • IntelliScript

  • Motor vehicle & public records

    • MVR vendors
    • state DMV feeds
    • LexisNexis
    • Verisk

  • Policy admin & new business

    • iPipeline
    • Ebix
    • FireLight
    • InsPro
    • Vantage
    • FAST

Agent

Life & annuity underwriting

  • Reads the file
  • Assembles the evidence
  • Holds for the underwriter

  • Case management & correspondence

    • ServiceNow
    • case tracking
    • Underwriter workbench tools

  • Observability & evaluation

    • OpenTelemetry
    • 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 file

Each control wraps the one inside it. What the stack does not catch is named in the map below it.

L6 · Outermost — last line of defence

Inward → L1 · closest to the model

L6Rollback / safe modePull the agent back to evidence-assembly only when evaluation or production signals degrade.Roll back
L5Version monitoringTrack model, prompt, AU-rule and state-configuration changes.Track
L4TraceabilityRecord the evidence, its source page, the summary, the flags and the underwriter's classification.Record
L3Underwriter reviewHold the file for the underwriter; it governs release, not whether the classification is right.Gate
L2Policy guardrailsTest the file against the carrier's accelerated-underwriting rules and state configuration; a failure returns it.Restrict
L1Confidence thresholdsRoute low-confidence summaries out of the accelerated path before the underwriter sees them.Require review
Model coreFile assembled — evidence, summary, flagged findings and confidence
L1 – L2
Test whether the file may proceed
L3
Puts the classification in the underwriter's hands
L4 – L5
Keep the evidence and the source behind it
L6
Falls back to evidence assembly when signals degrade

How Nestack evaluates it

Evaluate the underwriting workflow — not only the final file.

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

Surface — the file the underwriter opens

  1. E1Final-output evaluationDid every finding in the summary match its source page?
  2. E2Step-level evaluationDid the agent apply the right AU rules and state configuration for the case?
  3. E3Tool evaluationDid it order the correct evidence type for the correct case?
  4. E4Confidence calibrationDo low-confidence summaries actually route to more evidence requests?
  5. E5Slice evaluationHow does performance change across specific case types?
  6. E6Business outcomeHow many files needed an evidence request or a later correction?

Floor — the outcome the carrier answers for

Failure modes

Where each failure originates in the agent

Seven failure modes, placed at the stage each one originates.

Agent lifecycle

Direction of processing →

  1. 01 · Retrieval

    1 mode

    • LF-03

      Superseded evidence

      An APS or lab result is read from a version since replaced.

    Stage gathers

    Application, authorization, evidence orders and history

  2. 02 · Reasoning

    2 modes

    • LF-04

      Missed qualifier

      A clinical qualifier such as 'in remission' is dropped from the summary.

    • LF-06

      Inferred data point

      A missing lab value is filled from a pattern, not the source page.

    Stage proposes

    Findings, source pages, flags and confidence

  3. 03 · Tool / write

    2 modes

    • LF-02

      Restricted data used

      A genetic-test result is used where the case's state prohibits it.

    • LF-05

      Stale authorization

      Evidence is ordered after the signed authorization has lapsed.

    Stage writes

    Only where write access and approval policy allow it

  4. 04 · Output

    1 mode

    • LF-01

      Reason omits the source

      An adverse-decision reason is generic and does not name the source data.

    Stage returns

    The file the underwriter opens and the carrier answers for

  5. 05 · Change / Version

    1 mode

    • LF-07

      Silent rule drift

      A model or AU-rule change widens what the agent will flag or pass.

    Stage tracks

    Model, prompt, AU rules and state configuration

  • Sev-1 · a write acts outside the boundary
  • Sev-2 · a wrong finding reaches the file
  • Sev-3 · evidence degrades, routes to review
See the complete Insurance & Financial Services failure-mode catalogue

Affected slices

Book-level accuracy can hide one bad cohort

A book-level file-rework rate can look acceptable while a handful of case cohorts absorb most of it. Nestack reports the rate by slice, not only in total Nestack reports it by slice rather than in aggregate..

Slice performance — reported separately, not only in aggregate

Illustrative example
SliceFailure rateLiftLift vs. thresholdStatus
Cases routed out of the accelerated path7.8%4.0×Review
Files resting on a summarised medical record5.2%2.8×Review
Applicants with prescription-history hits3.5%1.8×Watch
Clean fluidless cases inside the rules1.9%0.7×Normal

Bar: file-rework-rate lift vs. the clean-fluidless baseline · scale 0–4.0× · tick at 2.0×

2 of 4 slices over threshold

Evidence-linked improvement

Every cycle earns its next regression case

A cycle closes when the unexplainable decline is a case the next release has to survive. That suite is what the next file assembled is measured against.

Improvement cycle · five stages

Switchback — the path turns at Improve and returns at Learn

  1. 01

    Detect

    File-rework rate rises in a case slice.

  2. 02

    Diagnose

    The applicant who was told nothing useful is traced back through the file until the cause narrows to one page.

  3. 03

    Improve

    The fix ships against a version, with the files that exposed it attached.

  4. 04

    Verify

    Release is held until the affected explanation cases pass again.

  5. 05

    Learn

    The case joins the permanent suite and the evidence rules move with it.

  6. Learn → Detect

    The return edge. Detection next time runs against a suite one file 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, evidence sources, underwriting workflow, evaluation, integration, then production validation and handover.

Workstream

Week 1Week 2Week 3Week 4Week 5Week 6

  1. 01Underwriting workflow discovery and scope and boundary definition.Week 1
  2. 02Evidence-vendor and source assessment.Week 1, Week 2
  3. 03AU-rule and state-configuration mapping and rule mapping.Week 1, Week 2
  4. 04Application ingestion and normalisation.Week 2
  5. 05Evidence-ordering logic and summarisation.Week 2, Week 3
  6. 06Confidence scoring and flag routing.Week 3
  7. 07Underwriter review workflow.Week 3, Week 4
  8. 08Evidence-vendor system integration.Week 5
  9. 09Explanation regression cases.Week 4, Week 5
  10. 10Guardrails and classification controls.Week 4
  11. 11File-trail instrumentation.Week 5, Week 6
  12. 12Deployment, documentation and Agent Care handover.Week 6

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 tierPilotOne product lineProductionProduction new-business systemsAdvancedMultiple products / states
Introduced at Pilot
Evidence assembly to your file and rules✓✓✓
Underwriter review✓✓✓
Evidence-accuracy baseline✓✓✓
Introduced at Production
Reporting by product—✓✓
Underwriter workflow in your systems—✓✓
Approved evidence write-back—✓✓
Evidence-source integration—✓✓
Introduced at Advanced
Multi-state AU rule complexity——✓
Multi-stage underwriter review——✓
High application volume——✓
Multi-state underwriting controls——✓
Build priceFrom $5,000From $8,000Custom quote
Final build price
Confirmed after discovery based on integrations, workflow complexity, case volume, review controls and deployment requirements.
Separate from build
Build 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.

  1. 01Your case-file structure and evidence-vendor list

    Case-file ingestion and evidence-source mapping

    Week 1

  2. 02Representative past cases, including declines

    Evidence-ordering baseline and summarisation baseline

    Week 2

  3. 03Your accelerated-underwriting rules and state list

    AU-rule and state-configuration mapping

    Week 1

  4. 04Access to relevant APIs, feeds or exports

    Evidence-vendor and case-system assessment, then integration setup

    Week 2

  5. 05Decisions you would not want explained

    Adverse-action cases and failure-mode testing

    Week 4

  6. 06What no decision may rest on

    Confidence scoring, flag routing, guardrails and classification controls

    Week 3

  7. 07Named underwriters to review files

    Underwriter review workflow, then pilot and production validation

    Weeks 5–6

Nothing else is required

Deployment, documentation and Agent Care handover are ours.

Delivery timeline

Four phases across six weeks

Each band covers the weeks the work really takes, which is why week 5 carries evaluation and pilot together.

Phase

W1

W2

W3

W4

W5

W6

  1. DiscoveryW1
  2. BuildW2 – W3
  3. EvaluateW4 – W5
  4. Pilot & LaunchW5 – W6

Week focus

W1Underwriting workflow discovery, AU-rule mapping and the automation boundary

W2Evidence-source integration and the assembly baseline

W3Assembly workflow, confidence logic and underwriter-review controls

W4Evaluation suite, adverse-action checks and failure-mode testing

W5Evidence-vendor integration, pilot cases and targeted corrections

W6One new-business cycle run under the chief underwriter, then Agent Care handover

Reading the band
A bar covers the weeks its work is named in, and nothing else. The week 5 overlap is real, not padding.
At the end of W6
Validation closes on live files, and Agent Care picks up monitoring.
Duration
Six-week plan shown · typical delivery 4–6 weeks depending on scope confirmed in discovery.

Next step · Insurance AI agent

Build a life underwriting agent around your accelerated-underwriting rules.

Show us your accelerated-underwriting rules and your evidence vendors. If your book already routes cases by evidence, we'll map the assembly workflow, set the automation boundary and name what stays with the underwriter.

Typical delivery
4–6 weeks
Deployment
Your evidence vendors
Underwriter review
Pre-decision
After launch
Agent Care available

Nestack Agents · Life & annuity underwriting

AGT-INS-14 · Agent Care available after launch

Build a life underwriting agent

Four questions so the call starts from your actual setup — then pick a time that suits you.

About you
Your case files

No obligation. We’ll map the workflow, name the automation boundary and tell you if an agent is the wrong answer.