All Jev use cases
12 worked examples of typed decisions with Jev. Each page has the question design, Python and TypeScript code checked against the official docs, decision logic, and a cost estimate.
AI engineering
Intent Routing for Chatbots and Agents with Jev
Route chatbot and agent messages across 60+ intents with one Jev Choice built from your intent registry, a none option, and a Noul gate. Code and cost math.
LLM Output QA and Agent-Run Review with Jev
Check generated answers and agent transcripts before they ship with Jev Noul and Score questions, then gate release on thresholds. Code and cost math.
Customer operations
Email Triage and Priority Scoring with Jev
Sort a shared inbox with one Jev request. A Choice sets the category, three Score questions rate urgency, sender signals and effort, and code weights them.
Support Ticket Routing with Jev
Route support tickets to the right team with one Jev Choice question, then gate auto-assignment on confidence. Python and TypeScript code plus cost math.
Documents and finance
Invoice and Document Classification with Jev
Classify OCR text from an accounts payable inbox with one Jev Choice question, flag reminders and past-due notices with Nouls, keep amounts and dates in code.
Sales and marketing
Lead Scoring with Jev Score Questions
Score inbound demo requests with four atomic Jev Score questions for fit, intent, seniority and urgency, then combine them with weights you control in code.
News Relevance Filtering with Jev
Filter headlines against a client profile with Jev Noul and Choice questions, one request per article, run concurrently. Includes code and cost estimates.
Search and commerce
Hierarchical Product Categorization with Jev
Place marketplace listings in a taxonomy with thousands of leaves using cascading Jev Choice questions, a small beam, and confidence-based parent back-off.
Search Result Re-Ranking with Jev
Re-rank BM25 or vector search results with one Jev Score question per query and candidate pair, run concurrently, then sort in code. Python, TypeScript, costs.
Security and observability
Log Anomaly Classification with Jev
Classify flagged log clusters into cause categories with one Jev Choice and speculative Noul checks, while counting and rate math stay in your own code.
Security Alert Triage with Jev
Triage SIEM and EDR alerts with Jev Score and Choice questions, rank the analyst queue, and keep host isolation behind a high confidence bar and a human.
Trust and safety
Content Moderation and Injection Screening with Jev
Screen user messages and retrieved passages before they reach your LLM. One Jev request returns a policy Choice plus Noul checks for jailbreaks and injections.
New to Jev?
Start with what Jev is and how System One models differ from LLMs, then readhow to gate actions on confidence.