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Loss runs are the historical claims record that underwriters rely on to evaluate a risk. The @openinsure/loss-runs package handles the full lifecycle: requesting loss runs from prior carriers, extracting data from PDF and CSV formats, analyzing trends, and flagging risks.

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Loss Run Lifecycle

Producer submits new business
          │
          ▼
Request loss runs from prior carriers
          │
          ▼
Carrier responds (PDF or CSV attachment)
          │
          ▼
Extract structured data (AI + parser)
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5-year loss analysis + trend detection
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Risk flags surfaced in UW queue
          │
          ▼
Underwriter reviews → Quote / Decline / Refer

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Requesting Loss Runs

Loss run requests are sent via the submission workflow when a submission is received: 
POST /v1/submissions/:id/request-loss-runs
Authorization: Bearer <token>
Content-Type: application/json

{
  "priorCarrier": {
    "name": "Acme Mutual Insurance",
    "claimsEmail": "lossruns@acmemutual.com",
    "policyNumber": "GL-2022-001234"
  },
  "yearsRequested": 5,
  "effectiveDateRange": {
    "from": "2020-01-01",
    "to": "2025-01-01"
  }
}
This sends a templated email to the prior carrier’s claims department and creates a pending request record. When the carrier replies with an attachment, the shared mailbox cron routes the attachment to the loss run extractor.

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Extraction

The @openinsure/loss-runs package includes both a structured CSV extractor and an AI-powered PDF extractor.

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CSV extraction

import { extractFromCSV } from '@openinsure/loss-runs';

const lossRun = await extractFromCSV(csvString, {
  mapping: {
    claimNumber: 'Claim #',
    dateOfLoss: 'Loss Date',
    status: 'Status',
    paidLoss: 'Paid Indemnity',
    paidExpense: 'Paid Expense',
    reserve: 'Outstanding Reserve',
    totalIncurred: 'Total Incurred',
  },
});
// lossRun.years[].claims[] — structured claim-level data
// lossRun.years[].totals   — annual summary

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PDF extraction (AI)

PDF loss runs are rendered to images and processed by the AI extraction bridge: 
import { extractFromPDF } from '@openinsure/loss-runs';

const lossRun = await extractFromPDF(pdfBuffer, {
  carrier: 'Acme Mutual',
  policyNumber: 'GL-2022-001234',
});
// Same output structure as CSV extraction
// extractionConfidence: 0.0–1.0 (below 0.75 → manual review)

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Loss Analysis

Once extracted, the analyzeLossRun() function produces a 5-year summary: 
import { analyzeLossRun } from '@openinsure/loss-runs';

const analysis = analyzeLossRun(lossRun, {
  earnedPremium: [180_000, 195_000, 210_000, 225_000, 240_000], // 5 years
});

// analysis.lossRatioByYear: [0.42, 0.38, 0.61, 0.35, 0.44]
// analysis.fiveYearLossRatio: 0.44
// analysis.largestSingleClaim: 95_000
// analysis.openClaimsCount: 2
// analysis.trendDirection: 'STABLE'  | 'DETERIORATING' | 'IMPROVING'
// analysis.flags: [...]

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Risk Flags

The analyzer automatically generates flags based on the loss history:
FlagSeverityTrigger
HIGH_LOSS_RATIOCritical5-year loss ratio > 70%
DETERIORATING_TRENDWarningLoss ratio increased ≥ 15 points in last 2 years
OPEN_CLAIMSWarning≥ 2 open claims at time of submission
CATASTROPHIC_LOSSCriticalSingle claim > 50% of annual premium
FREQUENCYWarning> 3 claims per year (small commercial)
RAPID_RESERVE_DEVELOPMENTWarningOpen reserves grew > 40% since last loss run
CARRIER_NONRENEWALInfoCurrent carrier did not offer renewal
analysis.flags.forEach((flag) => {
  console.log(flag.code); // 'HIGH_LOSS_RATIO'
  console.log(flag.severity); // 'CRITICAL'
  console.log(flag.description); // '5-year loss ratio of 84% exceeds 70% threshold'
  console.log(flag.year); // 2024 (if year-specific)
});
Flags are surfaced in the UW queue with color-coded badges and require acknowledgment before an underwriter can bind the policy.

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Loss Run Generator

For policyholders requesting their own loss run (to submit with a new application elsewhere), the generateLossRun() function produces a formatted loss run from OpenInsure’s claim records: 
import { generateLossRun } from '@openinsure/loss-runs';

const lossRunPDF = await generateLossRun({
  policyId: 'pol_01J8...',
  yearsRequested: 5,
  asOfDate: '2025-06-01',
  requestedBy: 'Acme Roofing LLC',
  format: 'pdf', // 'pdf' | 'csv' | 'json'
});

POST /v1/policies/:id/loss-run
Authorization: Bearer <token>
Content-Type: application/json

{
  "yearsRequested": 5,
  "asOfDate": "2025-06-01",
  "requestedBy": "Acme Roofing LLC",
  "format": "pdf"
}
The generated loss run is stored in R2 and a download link is returned. Producers can also trigger this from the producer portal via Policy → Request Loss Run.

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UW Queue Integration

Loss run analysis results automatically populate the submission’s Risk Scorecard in the Underwriting Workbench:
  • Loss ratio by year (bar chart)
  • Trend indicator (arrow + color)
  • Flag summary with drill-down to individual claim data
  • Comparison to program benchmark loss ratio