Claude Code × Jev Plugin: One-Click Diagram Generation
A developer built a plugin combining Claude Code with Jev. It suggests and draws diagrams after long responses, supporting 14 diagram types and light/dark themes.
THE JEV GUIDE · CURATED EDITION
Launch news, explanations, demos, and community projects around TypeSafe Jev, organized by topic. Every entry links back to its X source.
Curated selection · Not exhaustive · Updated manually
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A developer built a plugin combining Claude Code with Jev. It suggests and draws diagrams after long responses, supporting 14 diagram types and light/dark themes.
Introducing an AI pattern that automatically drops unneeded tools based on task description, keeping only what's needed from 30 tools, reducing tokens per turn. Built with AI SDK v7 and shadcn registry.
Andreas Kruszakin-Liboska shares a generative UI app or demo powered by Jev, showcasing Jev's practical use in interface generation.
Using the same pinned Jev version on 3,080 official BANKING77 test cases, accuracy reaches 80.75% without examples and 91.36% with all 2,446 labeled examples in context — 327 more correct, no weight updates, and only $10.92 of input tokens.
Datadog Developers highlights TypeSafe Jev's performance in AI agent evals: ~100ms, roughly 50x faster than GPT-5 nano at 5.6s; one call, multiple criteria, typed answers with probabilities, now in Datadog Agent Observability. Link
One card in the feed, every sixteen, on every page of it. $50 a week, cancel any week.
Stop paying ChatGPT for a yes. Jev returns typed decisions with a confidence score, and output tokens cost $0. A cheaper fit for yes/no calls in your app.
A developer places Jev as a router in front of Claude Code. Each decision costs about $0.00002, routing prompts to the smallest capable model among Haiku, Sonnet, and Opus, cutting costs while managing latency.
UHIYAMA plans to replace the decision-making part with the Decisions API for validation in talk avatar development, comparing judgment differences. If there are no differences, a full replacement may be considered. The current decision cost is about $0.2 per conversation hour, which could be absorbed by distribution credits.

Jev Router is an MCP connector for agentic tools that uses TypeSafe's Jev to rate each request's difficulty and automatically select the right model and tool: easy requests go to light models, while hard reasoning goes to more capable models. Link
Introducing the Parallel Decisions API, which lets AI agents like Jev, a high-speed decision model, directly use real-time web search to make judgments based on the latest information, processing multiple queries together at just $0.001 per request.
The post discusses latency by question count, cites it as evidence that Jev can be commercialized, and includes a PyPI link to jev-lite. Link
Jev Router gives AI agents access to 10,000+ tools and models through a single MCP connection and intelligently selects the best tool for each task, reducing cost and complexity.
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