
Jev SDKs, CLIs and MCP servers
Go, Rust, Python, Ruby, Elixir, Swift, PHP and Java clients for Jev, plus MCP servers, gateways and SQL extensions. Each links to its repository.
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SkillAgents and browsers
skillranker
A Rust CLI where Jev ranks agent skills for the next step.
Jeff Emanuel
132
SkillBenchmarks and evals
tenbin
Split a judgment into Choice, Score and Noul, lint it, then measure it.
Shingo Imota
4
SkillSDKs and integrations
Building with Jev
A skill for writing and fixing programs that call Jev.
Drew Breunig
155
Eugene Cheah - AI builder @ 🇸🇬|🇺🇸
@picocreator
love jev, but upset it - isn't open source? - it lack vision capability? We fixed all of that, introducing SimpleJev.ai A fully open source library which takes any HF model and Jev-ify it, with an API endpoint Now on github, and live in production at @FeatherlessAI
GitHubOpen source
Simple Jev

Hamilton Ulmer
@hamiltonulmer
I made a DuckDB extension where you can use @typesafeai 's Jev to do quick classification of rows in any csv/parquet file or duckdb table about 10sec for 1k rows ~ better than using an LLM, way more ergonomic than a classifier game-changing for data analysis!

GitHubCoding and code review
jev-oxlint
Turn an agent skill into an Oxlint plugin that asks Jev.
Tony Powell
1

GitHubContext and memory
jev-pruner
Trims long Bash output with Jev before Claude reads it.
Tamara Tran
161

GitHubContext and memory
Jev Sift
Classify first, read selectively: an agent plugin and MCP tool.
Kush Bhuwalka
47
GitHubSDKs and integrations
mcp_jev
A local MCP server that runs ready-made Jev question packs.
Pedro Knigge
1
GitHubSDKs and integrations
jevkit
A Rust CLI for Jev, with a linter that checks questions before you pay.
Ariel Frischer
4

GitHubSDKs and integrations
duckdb-jev
Ask a question about every row in SQL, and get a real SQL type back.
Colliber
29
GitHubSDKs and integrations
pg_typesafe
A PostgreSQL extension that calls Jev from SQL.
Giulio Piccolo
88
GitHubBenchmarks and evals
Jev Capability Atlas
Where Jev holds up and where it breaks, with real API receipts.
Zaious
27

GitHubSDKs and integrations
Laravel TypeSafe Jev
An unofficial Laravel package for Jev, with typed responses and test fakes.
Alexey (Butochnikov)
3
Peter Wang
@the_cyw
I made a chrome extension to label all the X posts on my timeline. It tells me if each post is clean, engagement bait, promo, secondhand or filler. $0.03 for 1000 posts. Open sourced if you want to try it out.


ares. 🎧
@aresotik
ESTA HERRAMIENTA ACABA DE ROMPER TODO EL MERCADO DEL AD SPY Maxfusion ha cogido JEV, el modelo nuevo de TypeSafe, y le ha metido la ad library entera de una marca → 1.891 anuncios clasificados → 19 segundos → 0,12 $ Y no es un resumen: cada anuncio etiquetado por etapa del funnel y estilo creativo, más la radiografía completa de la cuenta Llega pronto al MCP de maxfusion

Ranjan
@manofsteel3129
built askjev on typesafe jev for all-site navigation with claude you talk to claude in plain english and askjev runs your real browser on any site. jev decides every next click — open pages, switch tabs, scroll feeds, fill forms, run multi-step goals without you babysitting the DOM. mcp server + chrome/brave extension. auto-connect once, then stay in chat while the browser moves. claude handles the conversation. jev handles the decision on each step. askjev is the hands on the web. install: load the extension → paste your typesafe key → auto-connect → restart claude → talk example: use askjev, open http://x.com and scroll my feed and find the best posts http://github.com/ranjan2829/AskJev npx -y askjev-mcp
GitHubAgents and browsers
AskJev

Kun Chen
@kunchenguid
almost every day i hear people ask "when should i /compact my session" there's no easy answer because it depends on how likely your future action will need detailed context in the existing window but we have Jev now! introducing compact-adviser - an agent plugin you can use in claude and pi today to help determine whether you're likely at a task boundary that's safe to compact https://github.com/kunchenguid/compact-adviser i built a private eval set from 40 real sessions and manually labeled all the safe vs unsafe checkpoints to evaluate this, and hillclimbed the Jev prompt till it performed quite well i also made it so that the classifier will - optimize for precision (not triggering a compaction prematurely) when context window is small - and gradually shift to optimize for recall (not missing an opportunity to compact) when context window fills up, because the cost of not compacting becomes higher, and at the end the agent will be forced to compact anyway it supports a "hint" mode (just give you a hint and it's up to you to run /compact) vs "auto" mode which runs compaction whenever Jev says it's safe to do so if you have Jev and want to put your compaction on autopilot, try this out and let me know how it goes! support for more harness is coming soon as well

GitHubSDKs and integrations
hermes-typesafe-jev
Choice, Noul and Score as first-class MCP tools.
Andy Holst
1
GitHubAgents and browsers
browser-ai
A Jev browser agent in pure Go, attached to a real Chrome.
Ngoc Phan
1
GitHubRouting and model choice
jev-dsh-decision
A structured decision plugin for agent harnesses, built on Jev.
Devin-AXIS
253

GitHubSDKs and integrations
jevalyn
A Rails-native decision layer: typed answers inside control flow.
Raymond Hughes
19
GitHubSDKs and integrations
jev-spring-boot-starter
Jev as a Spring Boot 4 starter, over Spring MVC and RestClient.
Dan Vega
39


GitHubRouting and model choice
jev-tool-router
Picks the MCP tool for Codex, instead of listing them all.
jackbarunz
9

GitHubBenchmarks and evals
jev-design
A console whose design system is chosen by Jev at runtime.
Gonzalo Bilune
57