All Jev resources
This is the full index of everything Jev: 2231 entries for TypeSafe AI's flagship System One model, from official documentation, SDKs, and cookbooks to community-built clients, MCP servers, agent tools, and write-ups. Every entry is tagged by category, format, and topic, and sorted newest first.
Filter by category or tag, or search titles, descriptions, authors, and repos. Open any card for its detail page — most entries carry a verified deep dive with highlights, caveats, and a quickstart snippet.
- Entries
- 2231
- Categories
- 11
- Official
- 93
- Community
- 2138
- Source sites
- 148
- Deep dives
- 2231
Last updated . Entries are added as they appear and re-checked when they are touched.
Browse Jev by category
11 ways into the ecosystem. Each category page leads with its own shortlist of starting points.
- Repos & SDKs202Client libraries, adapters, and source code you can build on with Jev, from the official Python and TypeScript SDKs to community ports in Go, .NET, and PHP.
- Integrations & Adapters145Framework, platform, gateway, and database integrations that put Jev inside the stack you already run, from LangChain and Pydantic AI to Postgres and Home Assistant.
- Agents & MCP302Agent runtimes, coding-agent gates and routers, MCP servers, and skill or context tooling that hand an agent Jev's typed decisions.
- Tools & CLIs447Standalone Jev CLIs, desktop apps, playgrounds, and utilities you run directly, from shell history and semantic search to dashboards and meters.
- Cookbooks91Official, runnable Jev recipes that show what decision models are good at, each with its own datasets, latencies, and numbers.
- Demos & Experiments363Playable demos, games, simulators, and experiments that put Jev in the loop, from Mario and drones to moderation firehoses and trading bots.
- Practices & Patterns248How to design Jev states, questions, and confidence gates the right way, from the official patterns to the failure modes worth designing around.
- Guides & Articles224Documentation, write-ups, and community hubs for learning Jev, from the canonical docs to independent tutorials and reviews.
- Benchmarks & Evaluations55Benchmarks, calibration studies, independent evaluations, and observability write-ups that measure how Jev actually behaves.
- Models & Reimplementations99Open reimplementations of Jev, retrained heads on small models, and inference-time tricks that reproduce the System One shape with other weights.
- Media & Talks55Videos, talks, podcasts, and news coverage about building with Jev.
Browse Jev by use case or industry
The same directory, sliced by what you are building and who you are building it for.
All 2231 Jev resources
Search the full directory, or filter by category and tag.
Showing 529–576 of 736 resources
1GitHub stars
Single-file browser testbed that sends state plus boolean, choice and score questions to Jev through the Vercel AI Gateway and shows answers, probabilities, latency, token counts and estimated cost for every run.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
terryds/jevplaygroundHTML
terryds/jevplaygroundHTML1GitHub stars
Instruction corpus compiled from TypeSafe's public Jev documentation: 119 rows split across the Choice, Noul and Score primitives, with the captured source files, a standard-library Python builder and a published HuggingFace dataset.
Jev Agents & MCP#community#awesomejev#catalog-import
Community
ctaxnagomi/instruct-jevPython
ctaxnagomi/instruct-jevPython2GitHub stars
Plugin for Claude Code, the Claude desktop app and Codex that has Jev read the task, then ranks live OpenRouter models by benchmark quality, price, speed and reasoning effort, returning a pick plus cheaper and faster alternatives with the exact command to switch.
Jev Agents & MCP#community#awesomejev#catalog-import
2GitHub stars
Consensus kernel that wraps Jev as a probabilistic oracle: five paraphrased questions, a stability gate set from the measured noise floor and a 3-of-5 quorum, with TLA+ specs, an AsyncAPI contract and Rust tests generated and gated from them.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
copyleftdev/jev-labsPython
copyleftdev/jev-labsPython2GitHub stars
PreToolUse hook for Claude Code and Codex that puts a shell-aware rules engine and Jev in front of every tool call, returning allow, ask or block per command and logging the reason and latency behind each decision.
Jev Agents & MCP#community#awesomejev#catalog-import
Community
Koushik890/jev-firewallTypeScript
Koushik890/jev-firewallTypeScript2GitHub stars
Chrome extension that puts a Magic 8 Ball on GitHub pull requests: nine signals from the GitHub API go to a small server, Jev picks one of four verdicts, and the ball answers with a phrase plus its reasoning. It never approves, comments or reads code.
Jev Agents & MCP#community#awesomejev#catalog-import
Community
acharyaanusha/magic-jevTypeScript
acharyaanusha/magic-jevTypeScript1GitHub stars
Neovim popup that reads the verdict jev-lens writes after a Claude Code edit and tells you whether to open a diff, which files matter and why, with a strip-debris action, lazydiff on a key, and no API calls of its own.
Jev Integrations & Adapters#community#awesomejev#catalog-import
Community
rashedInt32/jev-lens.nvimLua
rashedInt32/jev-lens.nvimLua1GitHub stars
Community Go client for the TypeSafe API: context-aware SystemOne calls, Choice, Noul and Score constructors, scoped functional options, typed errors carrying RFC 6901 field paths, and standard-library-only runtime code. Requires Go 1.24.
Jev Repos & SDKs#community#awesomejev#catalog-import
Community
unimtx/typesafe-sdk-goGo
unimtx/typesafe-sdk-goGo1GitHub stars
Fork of OpenPoke that replaces three yes/no LLM calls with batched Jev questions: important-email screening, a tool-call guardrail for the execution agents, and a relevance re-check on search results, with the old classifier left as the fallback.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
0xShin0221/openpoke-meets-jevPython
0xShin0221/openpoke-meets-jevPython1GitHub stars
Chinese-first Astro documentation site for Jev, covering the Choice, Noul and Score primitives plus intent routing, confidence routing, composite scoring and fan-out patterns, with an eight-language build and a cron pipeline where Jev gates each release.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
miounet11/jevcodeTypeScript
miounet11/jevcodeTypeScript1GitHub stars
Chicago traffic simulator where Jev sets citywide signal policy and two deterministic baselines replay the identical scenario: one car crosses the city while Fixed and Adaptive run headlessly against the same spawn list, seed and incident script.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
skcache/jevtrafficsimTypeScript
skcache/jevtrafficsimTypeScript1GitHub stars
Independent research repository on Jev: sourced findings that separate verified claims from vendor marketing repeated by others, a rubric-scored catalog of public Jev repositories, and recurring design patterns with evidence.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
g0runmezadam/what-is-jevPython
g0runmezadam/what-is-jevPython1GitHub stars
WebGL demo of the card game Speed against a Jev-driven CPU, built to make decision latency and accuracy visible: every candidate move checked as a noul in one parallel request, a mechanical rule validator as referee, and p50/p95 latency panels.
Jev Demos & Experiments#community#awesomejev#catalog-import
4GitHub stars
TypeScript router that spends one Jev call deciding how an agent turn should run — model tier, effort budget, which tools are on offer and which skill applies — then your own harness runs the turn on whatever provider it already talks to.
Jev Repos & SDKs#community#awesomejev#catalog-import
3GitHub stars
Agent Skill that sends large tool output and CI logs to Jev and hands your expensive model only the few lines that matter, shipped with a stdlib-only caller, a doctor command, and a plan mode that keeps open-ended work on your LLM.
Jev Agents & MCP#community#awesomejev#catalog-import
Community
lazniak/jevskillPython
lazniak/jevskillPython1GitHub stars
Unofficial Ruby client for TypeSafe AI: typed noul, choice and score answers, retries with jitter and Retry-After handling, per-call timeouts, a structured error hierarchy, and request-shape validation before anything goes over the wire.
Jev Repos & SDKs#community#awesomejev#catalog-import
Community
afurm/typesafe-sdk-rubyRuby
afurm/typesafe-sdk-rubyRuby1GitHub stars
Runnable benchmark putting Jev, jev-preview and Claude Sonnet 5 through one real agent task — classifying a tool call as readonly, destructive, privileged or exfiltration — on the same 60 labelled cases, with raw per-call results committed.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
themsquared/jev-benchmarkPython
themsquared/jev-benchmarkPython1GitHub stars
Go client for the TypeSafe API with typed question and answer types, per-request model and timeout overrides, request-body passthrough for fields the SDK does not model, and slog diagnostics that exclude bodies and credentials.
Jev Repos & SDKs#community#awesomejev#catalog-import
Community
dwisiswant0/typesafe-sdk-goGo
dwisiswant0/typesafe-sdk-goGo1GitHub stars
Archived Go proxy that sat between a coding-agent CLI and the upstream API to rewrite tool schemas and history with Jev, kept for the negative result: tool steering cut tokens on one model and added 37% and 51% on two others.
Jev Agents & MCP#community#awesomejev#catalog-import
Community
nekowasabi/jev-routingGo
nekowasabi/jev-routingGo1GitHub stars
Six browser demos of Jev's three primitives, each running the same judgment past Gemini or Claude for a side-by-side, with visitors pasting their own keys into localStorage instead of sharing a server-side key.
Jev Demos & Experiments#community#awesomejev#catalog-import
1GitHub stars
Small Go SDK for the Jev API: three question types with matching typed answers, functional client options, and a single APIError type carrying the status code, headers and raw body.
Jev Repos & SDKs#community#awesomejev#catalog-import
Community
kyledickey/jev-goGo
kyledickey/jev-goGo2GitHub stars
A Codex UserPromptSubmit hook that asks Jev for task_type, complexity, risk and execution_mode before a task starts and injects the result as advisory context, failing open on timeouts, quota errors and invalid responses.
Jev Agents & MCP#community#awesomejev#catalog-import
Community
wellkilo/codex-jev-preflightPython
wellkilo/codex-jev-preflightPython1GitHub stars
Browser agent that takes one Jev decision per action on top of agent-browser and only calls an LLM when confidence drops, escalating instead of guessing, with values, origins and irreversible clicks all guarded in code.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
HAR5HA-7663/hunchPython
HAR5HA-7663/hunchPython1GitHub stars
C# client for Jev, TypeSafe AI's System One model. Typed Noul, Choice and Score questions go out with one state in a single round trip and come back with a value, a probability distribution and a confidence number. Choice questions can be built from an enum, so the compiler finds the switch branch you forgot.
Jev Repos & SDKs#community#awesomejev#catalog-import
Community
RavenValentin/TypeSafe.JevC#
RavenValentin/TypeSafe.JevC#5GitHub stars
Go client for the TypeSafe System One API and the Jev model. Send one state with named Noul, Choice and Score questions and read back a typed answer, a probability for every option and a confidence. Ships a token-bucket rate limiter, a JavaScript-SDK-style retry policy and a full set of error sentinels.
Jev Repos & SDKs#community#awesomejev#catalog-import
Community
kataras/jevGo
kataras/jevGo1GitHub stars
A Go repository around the TypeSafe System One API that also ships a released CLI and a VS Code extension. SysOneScript scripts run offline, semlint inspects source and proposes checks, Studio is the editor front end, and the typesafe subpackage talks to Jev from your own module.
Jev Repos & SDKs#community#awesomejev#catalog-import
1GitHub stars
A reproducible 100-case demo that runs TypeSafe's Jev decision model against OpenAI's Terra and Anthropic's Opus on identical synthetic security evidence, then renders the recorded JSON to a static dashboard with no credentials in the browser.
Jev Practices & Patterns#community#awesomejev#catalog-import
2GitHub stars
A Java and Maven framework that lets natural language route to existing tinystruct @Action methods: Jev picks the action and its arguments as a probability distribution over options you supply, and the dispatcher then runs, holds for confirmation, or refuses.
Jev Repos & SDKs#community#awesomejev#catalog-import
1GitHub stars
A TypeScript library that treats typed semantic judgments as React hooks or plain server programs: pass one judgment's result into the next and the runtime works out the dependency, waits for fresh answers and batches compatible questions.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
microchipgnu/jev-hooksTypeScript
microchipgnu/jev-hooksTypeScript3GitHub stars
A local, open-source System One API compatible with Jev, served by Qwen models over llama.cpp and Metal: Noul, Choice and Score answers with full probability distributions and native image input, with no paid inference API in the loop.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
jev-skills/openjev-multimodalPython
jev-skills/openjev-multimodalPython1GitHub stars
A zero-build Node server and static page for trying Jev: send a state plus choice, score and noul questions and read back options, scores and calibrated probabilities, with a beta browser agent that drives a real browser through Playwright.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
PenglongHuang/jev-demoJavaScript
PenglongHuang/jev-demoJavaScript1GitHub stars
A Next.js Snake game where every move is a live System One Choice call: run it on Jev, on the wire-compatible Drex, or send the same state to both in parallel and watch the probabilities side by side.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
lalitsonawane/jev-snakeTypeScript
lalitsonawane/jev-snakeTypeScript2GitHub stars
A computer-use agent for the browser and for native macOS apps that puts a Jev guard in front of the driver: claimed completions are checked against observed state and the trajectory, irreversible actions pass a gate, and Jev can take the mechanical steps itself.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
Tom-R-Main/FootworkPython
Tom-R-Main/FootworkPython1GitHub stars
An independent benchmark asking whether Jev can replace an LLM reranker, run over natural-language search across all 6,245 YC companies, plus the live search app it measures: Jev routes the query, BM25 and embeddings retrieve, Jev reranks.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
PPRAMANIK62/yc-jev-benchTypeScript
PPRAMANIK62/yc-jev-benchTypeScript2GitHub stars
A Windows MCP server for Codex and Claude Code that runs bounded UI Automation tasks and durable multi-source research jobs, letting Jev choose only among actions deterministic code created, and returns a compact typed trace instead of a stream of screenshots.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
Teylersf/WindowsJevC#
Teylersf/WindowsJevC#2GitHub stars
A single-file browser client that fills Japanese PDF forms: it sends only OCR label fragments and your item names to Jev, gets a probability back for every field, and acts on the probability by filling, asking, or leaving it blank.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
takumi-golf/jev-fill-pdfHTML
takumi-golf/jev-fill-pdfHTML1GitHub stars
An async Rust client for models served through the System One API: typed Noul, Choice and Score questions go out with one state and typed answers come back, over a single multiplexed HTTP/2 connection with no vendor built in.
Jev Repos & SDKs#community#awesomejev#catalog-import
Community
zchee/typesafe-sdk-rustRust
zchee/typesafe-sdk-rustRust1GitHub stars
A Go harness for System One decision models, covering hosted Jev through the Vercel AI Gateway or the native API plus Kev running in-process on llama.cpp, with typed helpers for gating decisions and a CLI for trying a state and questions from a shell.
Jev Agents & MCP#community#awesomejev#catalog-import
Community
taigrr/gojevGo
taigrr/gojevGo1GitHub stars
Benchmark of Jev as a production reranker against Qwen3-Reranker-0.6B on BEIR SciFact and NFCorpus. Ranking quality is a wash, Jev runs about twice as fast with a much tighter tail, and the cross-encoder costs roughly a quarter as much. Every raw API response is committed, so the numbers recompute without an API key.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
denser-org/rerank-bench-jevPython
denser-org/rerank-bench-jevPython2GitHub stars
An open System One decision model on small fine-tuned backbones, served locally through Apple MLX and speaking Jev's request/answer shape. Two model tiers with identity-bound temperatures, calibration fitted to your own labeled decisions, and a comparison ladder that includes the misses. A research prototype.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
mpuig/system-onePython
mpuig/system-onePython1GitHub stars
Vendor-neutral Python SDK for System One decision models. One ask(state, questions) call over noul, choice and score, with provider choice expressed as a config class rather than a string. Hosted backends, a Fastino GLiDE preset, and an in-process ONNX path needing no torch at runtime.
Jev Repos & SDKs#community#awesomejev#catalog-import
Community
asynq-io/system-onePython
asynq-io/system-onePython1GitHub stars
Spanish-language demo running Jev over Spain's official gazette (BOE) daily. One call per disposition scores relevance 0-3, probes 13 policy categories with Noul, and picks the paragraph explaining the change, so the summary is selected rather than written. Astro on GitHub Pages, JSON data, no login.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
Tatuck/jev-boe-demoTypeScript
Tatuck/jev-boe-demoTypeScript1GitHub stars
Cross-platform assistant that ranks pending messages by urgency with one Jev call per item, shown in a draggable overlay that snaps to the screen edge. Android reads system notifications via NotificationListenerService; Windows screenshots the WeChat window and OCRs it locally. It judges, never replies.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
jeffyuysw/jev-xianhuiKotlin
jeffyuysw/jev-xianhuiKotlin1GitHub stars
TypeScript runtime that keeps Jev's probabilities out of the decision path. YAML policies declare preconditions, typed questions and ordered rules; it returns a decision plus an audit trace, records fingerprinted signals as JSONL, and replays offline without calling the provider. Ships shadow evaluation.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
Sanoy24/jevpolicyTypeScript
Sanoy24/jevpolicyTypeScript1GitHub stars
Experiment scoring Jev's decisions on a game with a known right answer: a fair die, exact payouts, one Bet-or-Skip call per offer, judged by expected value rather than by whether the roll wins. Across 12,000 decisions it accepts profitable bets but rarely refuses bad ones.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
carlaiau/can-jev-playTypeScript
carlaiau/can-jev-playTypeScript3GitHub stars
Bilingual static catalogue of work touching TypeSafe's Jev decision model, split into papers, projects and online materials. Every record carries its relationship to Jev, an evidence level and a verification date in plain JSON, readable without a database or an account.
Jev Practices & Patterns#community#awesomejev#catalog-import
1GitHub stars
Free Chrome extension that scores tweets already loaded on your X page against criteria you write yourself, showing the probability as a badge. The substance is the prompts library of goals, judgment subjects and counter-examples; the extension is a no-build sideload with no store listing.
Jev Demos & Experiments#community#awesomejev#catalog-import
Community
kelaocai/tweet-radarJavaScript
kelaocai/tweet-radarJavaScript2GitHub stars
OpenCode extension putting a Jev-backed judgment layer between a coding agent and its tools. Four controllers, AEGIS, METIS, NIKE and EPISTEMICS, emit GO, DELIBERATE, VERIFY or BLOCK, and a tool router predicts the smallest useful capability set. Observe mode is the default.
Jev Agents & MCP#community#awesomejev#catalog-import
Community
MartinesEmanuel/athena-jevTypeScript
MartinesEmanuel/athena-jevTypeScriptStart here with Jev
Hand-picked entries the maintainers recommend first, from official primitives to community tools.
Published evaluations of four automation workflows, security incidents, agent trace observability, invoice processing, and customer service, comparing Jev and frontier LLMs as structured workflows versus single prompts.
Jev Practices & PatternsDocs#official#benchmarks#evaluation
Official
6GitHub stars
.NET SDK for the System One API with typed question sets, HttpClientFactory and dependency-injection wiring, plus Microsoft.Extensions.AI guardrail, routing, tool, and evaluator adapters.
Jev Repos & SDKs#community#sdk#csharp
Community
Hawxy/TypeSafeAI.NetC#
Hawxy/TypeSafeAI.NetC#0GitHub stars
A NativeAOT-ready .NET SDK generated from TypeSafe's OpenAPI definition, with typed question sets, batching, dependency injection, and Microsoft.Extensions.AI integrations.
Jev Repos & SDKs#community#sdk#csharp
Community
tryAGI/TypeSafeAIC#
tryAGI/TypeSafeAIC#Newest Jev resources
The latest additions to the directory, newest first.
Watch: Jev in action
Walkthroughs, tests, and demos from the community.
YouTube: KodeKloud's three-minute primer: what a System One model decides, and why it answers in milliseconds.
YouTube: Caleb Writes Code explains what Jev is and how to call it, in seven minutes.
YouTube: Greg Isenberg and Ryan Vogel on the businesses Jev unlocks, and a path in through the Vercel AI Gateway.
YouTube: CJ from Syntax demos browser use, classification, code review, a model router, and a chat bot with no LLM.
YouTube: Ryan Vogel runs Jev on 100 and then 1,000 emails: category, priority, spam, and reply predictions.
YouTube: AICodeKing tests support routing, refund detection, prompt-injection resistance, and browser automation.
Discussions about Jev
Threads from Reddit and Hacker News about building with Jev.
Hacker News: Show HN: Ad Spend Guard gates budget before the auction, not the creative after.
Show HN: Gating ad budget with a decision modelRead the thread on Hacker NewsReddit: Reranking rebooking options with a decision model, ranked with reasons.
Hacker News: Pick Verify: a single decision at the warehouse pick station catches confusable picks.
Show HN: Verifying robot picks with a decision modelRead the thread on Hacker NewsHacker News: Decision Index 0.2.1 scores open reproductions of Jev on a frozen suite.
jackbravo4 pointsDecision Index 0.2.1 – 70 open reproductions of TypeSafe Jev's Decision ModelRead the thread on Hacker NewsHacker News: Software Bombe and live Enigma demo where Jev ranks cribs and judges plaintext.
ag_212 pointsShow HN: Jev as the Bletchley Park Analyst: A Software Bombe on EnigmaRead the thread on Hacker NewsHacker News: Show HN for the decide CLI: brew install, file context, and multi-question shell scripts.
vsekhar2 pointsShow HN: Decide – Jev decisions in the shell, scripts, and agent skillsRead the thread on Hacker NewsHow entries are chosen
Every entry is hand-picked against the same bar, whether it comes from TypeSafe or the community.
- Public and working — no paywalls, sign-up walls, or dead links.
- Concrete — it has to be about Jev and the System One API, not generic LLM content.
- Useful today — something a developer can learn from or use right now.
- Distinct — if a similar entry exists, the description has to say what makes this one different: a different runtime, a cheaper path, a measured result, or a narrower focus.
- Documented — repos state their license, and docs are in English or carry an English summary.
Spam, affiliate links, and thin AI-generated content are rejected. New entries are expected to ship with a deep dive: two to five highlights, caveats, a quickstart snippet where one helps, and a verification date. Star counts are refreshed when an entry is touched.
Common questions
Short answers about Jev and how this directory works.
What is Jev?
Jev is TypeSafe AI's first System One model. It takes a state plus typed questions and returns one structured answer per question — a choice, an ordered score, or the probability of yes — with calibrated confidence on Choice and Score answers, so code can branch on the result without parsing generated text.
What is the difference between Choice, Score, and Noul?
They are the three question primitives. Choice picks one of up to 255 options, Score rates on 2 to 10 ordered levels, and Noul answers yes or no. Choice and Score answers carry a confidence between 0 and 1; a Noul answer is the probability of yes.
Which Jev SDKs and client libraries are available?
TypeSafe maintains official JavaScript/TypeScript and Python SDKs plus a Python adapter. The community has built clients for Go, .NET, PHP, Laravel, Rust, Elixir, Ruby, and Scala, along with framework integrations such as DSPy, LlamaIndex, and Home Assistant. All of them are listed in the Repos & SDKs category.
Is the directory free, and is it affiliated with TypeSafe AI?
The directory is free to browse: every entry is hand-picked, and spam, affiliate links, and sign-up walls are rejected. JevDirectory.org is community-run and not affiliated with TypeSafe AI — Jev and System One are TypeSafe AI trademarks.
How often is the directory updated?
Entries are added as new resources appear and re-checked when they are touched. The directory currently holds 2231 entries from 148 source sites, last updated Oct 12, 2026.
What is a verified deep dive?
Most entries include a deep dive: two to five highlight bullets someone would only know from using the resource, a caveats note about limits and requirements, an optional quickstart snippet, and the date the link was last checked. 2231 of the 2231 entries carry one today.
For the canonical details, read the official TypeSafe docs and the API reference.
From the Jev community
Posts from builders shipping with Jev right now.