Use casesDeveloper Tools
Jev developer tools and projects
Developer-tool projects put Jev behind editors, CLIs, evals and infra so typed judgments show up where engineers already work.
Jev: A Judgment Layer for Development
Jev acts as a judgment layer in the development loop, sitting between the developer's assessment of completion and handover to a maintainer, identifying potential issues and inconsistencies.
Jev: Rule Selection for Claude Code
Jev intelligently selects applicable rules for Claude Code based on prompts and file paths, optimizing context token usage and ensuring relevant rule delivery.
Jev Model Code Accuracy Test
This project tested the Jev model's ability to accurately identify specific lines of code that answer questions, comparing its performance and cost against other models like Claude Opus and Haiku, as well as the grep tool.
Jev Integration with Werkfaden
Jev is a new component integrated into Werkfaden that provides typed probabilistic decisions about project state, rather than generating text.
Tenet: AI Code Review Gate
Tenet is a review gate for code generated by agents, evaluating commits, commit messages, and pull requests against plain-language rules using Jev.
Jev: Typed Decision Engine for Review Triage
Jev is a typed decision engine that processes unified diffs to categorize them with risk flags (green, yellow, red) and assign reviewers, overriding hard path rules with typed primitives.
Jev PR Review
Jev is an AI model that reviews code pull requests, providing typed checks and verdicts like BLOCK or merge, at a significantly lower cost and faster speed than other models.
Jev for Code Reviews
Jev is a tool that scores raw git diffs directly to identify issues, invoking a language model only when an issue is flagged, significantly improving speed and reducing cost for code reviews.
Jev for Documentation Analysis
Jev is an AI tool used to analyze documentation by asking yes/no questions per sentence, identifying passive sentences and revealing style rule inconsistencies.
JevSpeak
JevSpeak enables TypeSafe's Jev decision model to generate sentences by answering semantic questions and compiling those decisions into words using code, without any large language models.
Autonomous DB Migration Guardian
This project uses AI to intercept Prisma SQL plans and halt pipelines if Jev detects destructive commands.
Jev by TypeSafe AI
Jev is a referee mechanism by TypeSafe AI that records answers as receipts and replays them against previous events before allowing them to gate anything.
Jev as a Computer
This project demonstrates Jev acting as a computer by emulating the Motorola 6502 processor, allowing it to run short programs directly.
PR Reviewer with Jev and Celesto Sandboxes
This project builds a pull request reviewer that spins up sandboxes using Celesto and runs tests to compare GPT 5.6 Luna and Jev on the same evidence.
Approve For Me Extension
This project is a PidotDev extension that replicates Codex's 'approve for me' functionality by analyzing context to determine if a bash command is relevant and safe for the current task.







