Jev 101
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Jev Use Cases from TypeSafe

19 use cases
Technology & developmentUse case

Search and retrieval

Which evidence can actually answer this question?

InputQuestion + candidate passages
JudgeJudge relevance to the question
ActCode ranks passages and selects answer context
Research & knowledgeUse case

Scientific discovery

Is this research claim supported by source text?

InputResearch question + original paper
JudgeCheck candidate passages for claim support
ActRecord provenance for researcher review
Technology & developmentUse case

Model routing

Which available model should handle this request?

InputRequest + eligible model list
JudgeSelect a suitable authorized option
ActCode enforces quotas and routing; escalate uncertainty
Technology & developmentUse case

LLM guardrails

Does this tool call require a review gate?

InputCall arguments + explicit constraints
JudgeFlag potential boundary violations or disclosure
ActPermission checks decide whether to allow, stop or review
Technology & developmentUse case

Semantic code linting

Does this change violate a team convention?

InputCode diff + explicit team rules
JudgeCheck the change against defined conventions
ActRecord findings for developer review
Business & operationsUse case

Recruiting

What job-relevant evidence is in the application?

InputAuthorized application + role requirements
JudgeIdentify evidence relevant to explicit criteria
ActRecruiters review; no automatic hiring decision
Business & operationsUse case

Lead generation

Which team should receive this inbound lead?

InputInbound inquiry + service ownership rules
JudgeClassify the requested service
ActCode routes the lead or requests missing information
Business & operationsUse case

Customer support

Who should handle this support email?

InputSupport email + ticket categories
JudgeIdentify intent and unresolved questions
ActCreate a ticket; approve consequential actions separately
Risk & complianceUse case

Insurance claims

What information needs checking in this claim?

InputClaim materials + required-document checklist
JudgeFlag potentially missing or conflicting information
ActA claims specialist verifies; no automatic denial
Risk & complianceUse case

Financial crime

Which alerts need further investigation?

InputAuthorized records + alert criteria
JudgeFlag textual clues requiring verification
ActPreserve evidence for a qualified investigator
Risk & complianceUse case

Legal and compliance

Which document items need review?

InputContract text + explicit checklist
JudgeIdentify clauses requiring examination
ActLegal professionals review; no legal conclusion
Business & operationsUse case

E-commerce marketplaces

Which category fits this product?

InputProduct description + defined taxonomy
JudgeChoose a candidate category and flag uncertainty
ActValidate fields and obtain approval before publishing
Risk & complianceUse case

Moderation and trust and safety

Does this content trigger a community rule?

InputContent text + current moderation policy
JudgeEvaluate potential policy issues
ActApply review rules and preserve an appeals process
Business & operationsUse case

Advertising

Does the landing page support the ad copy?

InputAd copy + landing-page text
JudgeFlag descriptions needing a consistency check
ActMarketers review before publishing
Technology & developmentUse case

Gaming

Where should this player report be routed?

InputPlayer feedback + support issue categories
JudgeClassify the specific reported issue
ActRoute an operations ticket; this is not game control
Risk & complianceUse case

Risk assessment

Which records need further investigation?

InputIncident records + evaluation rubric
JudgeProduce separate signals for defined indicators
ActCode aggregates signals for professional review
Business & operationsUse case

Demand forecasting

Which defined needs are customers mentioning?

InputCustomer inquiries + product need definitions
JudgeTag text against defined need categories
ActAggregate features for a separate forecasting model
Research & knowledgeUse case

Graphs and knowledge graphs

Which relationship should graph search follow?

InputCurrent node + candidate relationships
JudgeJudge relevance to the query goal
ActGraph-query code traverses and records the path