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Jev for Tool calling

408 curated Jev resources. Turn natural language into typed function calls and agent actions.

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  • Docs5
  • Repos & sites386
  • Videos3
  • Posts7
  • Articles5
  • Playgrounds2

All 408 Jev resources for Tool calling

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Showing 97–144 of 408 resources

liteagents
37GitHub stars
Python SDK that runs the same prompt, tools, and MCP setup across DeepAgents, Pydantic AI, Claude Agent SDK, Codex, and OpenCode by switching harness.
Jev Agents & MCP#community#jevbest#catalog-import
CommunityBerriAI/liteagentsPython
jevwire
24GitHub stars
Wires Jev into agents as seven MCP tools, an embeddable JevDecisionModel library with run functions, and Claude Code hooks at tool and turn boundaries.
Jev Agents & MCP#community#jevbest#catalog-import
CommunityBrainwires/jevwireTypeScript
algal
21GitHub stars
Language and VM for agent programs that wait for approval, survive restarts, and replay portable receipts without recalling the model.
Jev Integrations & Adapters#community#jevbest#catalog-import
Communityhraness/algalTypeScript
dejevu
11GitHub stars
Python browser agent that reads one lean page view per state and answers with a single JSON action, using any OpenAI-compatible model with no decision API or browser daemon.
Jev Practices & Patterns#community#jevbest#catalog-import
Communityidovmamane/dejevuPython
jcr
19GitHub stars
Capability resolver that uses Jev to search a nested command catalog and return selected instruction context to an agent through one MCP tool, keeping the search outside agent context.
Jev Agents & MCP#community#jevbest#catalog-import
CommunityNiazMorshed2007/jcrJavaScript
awesome-jev
24GitHub stars
Curated link collection tracking Jev resources, open reproductions, integrations and architecture playbooks, with every entry resolved from its source thread and checked as a live repo.
Jev Guides & Articles#community#jevbest#catalog-import
Communitytanxarx/awesome-jev
jev-recipes
20GitHub stars
TypeScript recipe library with 248 focused functions that call Jev for routing, reranking, gating and labelling, returning structured ready-or-review decisions for Node backends.
Jev Agents & MCP#community#awesomejev#catalog-import
Communityagencyenterprise/jev-recipesTypeScript
awesome-jev
16GitHub stars
Curated index of Jev tools, integrations and experiments across frameworks, browser use, mobile, coding agents, MCP, observability, data, trading and games.
Jev Guides & Articles#community#jevbest#catalog-import
Communityckaraca/awesome-jevPython
flue-jev-demo
11GitHub stars
Standalone Flue example that routes support chat through Cloudflare Workers AI, using gpt-4o-mini for chat and Jev for typed intent and urgency routing.
Jev Demos & Experiments#community#awesomejev#catalog-import
Communitymatthewp/flue-jev-demoTypeScript
fable-jev
10GitHub stars
Dual-brain routing that pairs Jev reflex judgments with get-fable deterministic invariants, plus lossless context compaction and shadow-mode telemetry.
Jev Guides & Articles#community#awesomejev#catalog-import
CommunityimMamdouhaboammar/fable-jevTypeScript
jev-sentinel
12GitHub stars
Coding-agent guard that puts Jev intent and risk checks in front of tool calls, tool outputs, and replies across Pi, Claude Code, and Codex CLI.
Jev Agents & MCP#community#awesomejev#catalog-import
Communityharshwasan/jev-sentinelTypeScript
jev_project_context
9GitHub stars
Research-memory skill that keeps experiment claims traceable with ten operations, provenance gates, and optional batched Jev audits over memory files.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communitypoiuyjie/jev_project_contextPython
jevmory
11GitHub stars
Local memory layer that stores verbatim agent quotes in per-project SQLite and grades them with Jev into stale, wrong, unsupported, or keep verdicts.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communityromiluz13/jevmoryPython
typesafe-skill-router
14GitHub stars
Opt-in Hermes plugin that routes each turn to one skill: a wide Jev Choice plus request checks gate a narrow fits round, injecting a single ignorable hint line.
Jev Agents & MCP#community#jevbest#catalog-import
CommunityDECRUX9812/typesafe-skill-routerPython
pi-quiet-ask
12GitHub stars
Pi extension that puts Jev behind coding-agent hooks: JSON packs ask closed questions on redacted state and turn probabilities into block, confirm, annotate, or steer actions.
Jev Agents & MCP#community#jevbest#catalog-import
CommunityHyunjunJeon/pi-quiet-askTypeScript
hermes-jev
38GitHub stars
Async supervisory layer for Hermes Kanban workers: locked DoD contracts, evidence tracking, budgeted trajectory checks, and Jev only for unresolved semantic criteria.
Jev Agents & MCP#community#jevbest#catalog-import
Communitykeeltrace/hermes-jevPython
jev-style
16GitHub stars
Local Qwen3.5 decision models in 0.8B and 2B sizes with fitted temperatures, systemone-shaped server, playground, guard, MCP tools, and eval harness.
Jev Demos & Experiments#community#jevbest#catalog-import
Communitylawrence3699/jev-stylePython
aside-jev
8GitHub stars
Browser workflow that keeps one Aside REPL session open, compacts page observations into allowed candidates, and has Jev pick the next action with confidence checks.
Jev Demos & Experiments#community#awesomejev#catalog-import
Communityhimomohi/aside-jevPython
keys-mcode-continuous-context-browser-decision-enhancement-pack
8GitHub stars
Enhancement pack for the MiniMax Code CLI with TUI patches, continuous context renewal, a local-vLLM compaction fix, and a measured arm64 browser lane.
Jev Demos & Experiments#community#awesomejev#catalog-import
Communitydrowzeys/keys-mcode-continuous-context-browser-decision-enhancement-packPython
hermes-and-jev-play-minecraft
10GitHub stars
Minecraft setup where Hermes plans at milestones, Jev picks one bounded harness action per step, and Mineflayer code owns validity and execution with no screenshots.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communityteknium1/hermes-and-jev-play-minecraftJavaScript
nanojev-arena
7GitHub stars
Local snake-arena demo where you steer a golden snake against four NanoJev AI snakes, with each AI snake showing its live direction-probability bars from a single forward pass.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communitycaijinchun/nanojev-arenaHTML
ego-jev
11GitHub stars
Agent skill that ports the ultrafast browser loop into ego lite: ego executes while Jev picks the operation and target in one call per step, with escalation instead of guessing on risky actions.
Jev Demos & Experiments#community#awesomejev#catalog-import
CommunityZephyrDeng/ego-jevTypeScript
laya-browser-agent
20GitHub stars
Local harness that runs the open Laya decision model on your own machine and wires it into browser agents through a TypeSafe-compatible /v1/systemone dialect.
Jev Practices & Patterns#community#awesomejev#catalog-import
CommunityChenneyZhuang/laya-browser-agentPython
jev-dsl
8GitHub stars
Early-alpha Haskell DSL for building Jev question packets as expressions with inferred types, exact request rendering, and exhaustive typed answer handlers.
Jev Repos & SDKs#community#jevbest#catalog-import
Communityinanna-malick/jev-dslHaskell
jev-architect
7GitHub stars
Portable agent skill that guides a coding agent through choosing, designing, and testing Jev uses, including when plain code is the better answer.
Jev Agents & MCP#community#jevbest#catalog-import
Communitykaranb192/jev-architectHTML
jevc
8GitHub stars
Compiler that turns ignored markdown rules into testable Jev gates: typed questions answered with probabilities plus a reducer computing allow, ask, or deny in code. Ships with offline replay fixtures and Claude Code hook wiring.
Jev Integrations & Adapters#community#awesomejev#catalog-import
Communitydoronp/jevcTypeScript
jev-harness
11GitHub stars
Decision layer for coding agents that triages test failures deterministically before spending frontier tokens. Offline heuristics handle missing packages, flaky transients, and loop breaking, with optional Jev micro-decisions and CLI, MCP, hook, and SDK use.
Jev Demos & Experiments#community#awesomejev#catalog-import
Communityismaelsoilet/jev-harnessPython
learn-jev-end-to-end
16GitHub stars
Free hands-on course of 12 notebooks that pairs Jev decisions with LLM writing across 13 small tools, needing one OpenRouter key and printing cost and self-checks per lesson.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communityharshithsunku/learn-jev-end-to-endJupyter Notebook
a0-typesafe-ai
5GitHub stars
Community Agent Zero plugin that exposes one typesafe_query tool for combined Choice, Noul, and Score questions over the same evidence, with probability cards in chat.
Jev Integrations & Adapters#community#jevbest#catalog-import
Community3clyp50/a0-typesafe-aiPython
open-spark-jev
22GitHub stars
Independent open-source local decision model inspired by Jev, with a spark-s1 family plus smaller control models for agent gates, served locally with probabilities and policy actions.
Jev Demos & Experiments#community#jevbest#catalog-import
Communityabhishek085/open-spark-jevPython
fastbrowse
114GitHub stars
Browser agent where Jev picks each action from indexed page candidates while an LLM plans and reads, returning cited answers or schema-checked data with credential controls.
Jev Demos & Experiments#community#jevbest#catalog-import
Communityagent-labs-dev/fastbrowsePython
jev-mcp
7GitHub stars
MCP server exposing one evaluate tool for Jev Choice, Noul, and Score questions, plus a separate eval harness that compares Jev against LLMs on shared labeled sets.
Jev Agents & MCP#community#jevbest#catalog-import
Communityarunav25/jev-mcpJavaScript
nitro
5GitHub stars
Grok Build wrapper that asks Jev one noul per tool before the first model call of a turn, then holds the shortened tool list so the prompt cache survives.
Jev Agents & MCP#community#awesomejev#catalog-import
Communitydaniel-farina/nitroRust
jevriel
6GitHub stars
Skill and CLI that helps Codex, Claude Code, and other agents add bounded Jev judgments for routing, ranking, classification, and next-step choice.
Jev Agents & MCP#community#awesomejev#catalog-import
Communitythehan-co/jevrielJavaScript
deepseek-harness-jev-pre-compaction
5GitHub stars
Pre-compaction advisor for DeepSeek Harness that asks Jev which tool results can be pruned in the 70-80% lookahead band, keeping the log intact and leaving real compaction to the backend.
Jev Agents & MCP#community#awesomejev#catalog-import
Communitywjw66/deepseek-harness-jev-pre-compactionTypeScript
dsh-jev-tools
14GitHub stars
DeepSeek Harness plugin that routes long tool outputs, web content, skill choice, and delivery checks through Jev before they reach context, with a local metadata-only ledger.
Jev Agents & MCP#community#awesomejev#catalog-import
CommunityHorusJiang/dsh-jev-toolsTypeScript
jev-for-all
14GitHub stars
Shared routing contract connecting OpenCode, Claude Code, Hermes, and pi to Jev for per-message skill choice, per-step tool subsets, and browser moves over the Decisions API.
Jev Agents & MCP#community#awesomejev#catalog-import
Communityemirbartu/jev-for-allTypeScript
jev-agent-authorization
5GitHub stars
Starter kit putting Kinde identity plus Jev judgment in front of every agent tool call, with allow, hold-for-approval, or deny decided in code and written to a ledger first.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communitykinde-starter-kits/jev-agent-authorizationTypeScript
daf-jev
7GitHub stars
Python client and decision toolkit for the Jev System One endpoint with noul, choice, and score primitives, batched asks, composition helpers, concurrent evaluation, and an MCP server.
Jev Practices & Patterns#community#jevbest#catalog-import
Communitydocxology/daf-jevPython
jev-tool-router
9GitHub stars
MCP tool router for Codex that keeps large external tool inventories behind a small find_tool surface and asks Jev to select from names and descriptions at a 0.90 threshold, falling back to bounded search.
Jev Agents & MCP#community#jevbest#catalog-import
Communityjackbarunz/jev-tool-routerJavaScript
jev-align
5GitHub stars
Inline verifier that checks LLM responses and agent plans with one Jev call across alignment heads and returns block, flag, or pass for gates and hooks.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communitycaiovicentino/jev-alignJavaScript
pijev
6GitHub stars
Terminal coding agent on Pi where Jev shortlists skills, ranks retrieved excerpts, and triages tool failures while the coding model handles reasoning and edits.
Jev Agents & MCP#community#awesomejev#catalog-import
Communitytonyzdev/pijevTypeScript
jev-codes
5GitHub stars
CLI and agent commands that audit a git diff hunk-by-hunk against editable YAML standards packs, with Jev answering typed questions and the agent fixing flagged lines.
Jev Practices & Patterns#community#awesomejev#catalog-import
CommunityKushwho/jev-codesTypeScript
windows-save-token-jev-setup
4GitHub stars
Windows Codex skill that installs and verifies user-level save-token-jev hooks, where PreCompact selects records with Jev before native compression and SessionStart restores them.
Jev Agents & MCP#community#awesomejev#catalog-import
Community455-dIAO/windows-save-token-jev-setupPowerShell
taste-lint
10GitHub stars
Commit-time design and code review that blocks AI slop on motion, copy tells, typography, and code patterns, with Jev probabilities for ambiguous cases.
Jev Agents & MCP#community#awesomejev#catalog-import
Communitymblode/taste-lintTypeScript
agi-jev-containment
5GitHub stars
Local agent observability stack that scores chains of tool events with Jev, Sentinel rules, and SafetyDrift, then sets escalate-only incident levels with graph forensics.
Jev Demos & Experiments#community#awesomejev#catalog-import
Communitycarlosedm10/agi-jev-containmentPython
jev-realtime-trading
7GitHub stars
Desktop paper-trading app for stocks and crypto where Jev answers narrow market questions each second and code turns the answers into orders under your stops and targets.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communityrthomas24/jev-realtime-tradingTypeScript
tink-route
5GitHub stars
CLI that routes a task to one specialist skill from a Tink library using TypeSafe Jev, verifies the winner with tink mount, then prints it inline or as a mounted path.
Jev Agents & MCP#community#awesomejev#catalog-import
Communityjon-devlapaz/tink-routePython

Start here with Jev

Featured entries for tool calling.

Fast Jev Compaction
7.6kGitHub stars
A Claude Code plugin and npm library that replaces transcript summarization with Jev keep-or-drop judgments, deleting stale tool calls and results while kept text stays verbatim.
Jev Tools & CLIs#community#typescript#claude-code
Communitytamaratran/fast-jev-compactionTypeScript
jevQL
14GitHub stars
psql-shaped CLI and Go, TypeScript, and Python SDKs that let you write jev(), jev_prob, jev_choice, and jev_score in queries against vanilla PostgreSQL, judging the surviving rows with Jev in batches. No CREATE EXTENSION or superuser required.
Jev Tools & CLIs#community#go#postgres
Communitykylemclaren/jevqlGo

Related use cases

Use cases that overlap with Tool calling.

Jev articles

Original guides that go deeper on Jev tool calling.

All Jev articles
The Cost of a Decision: Token Pricing and the Break-Even Point
Jev bills input tokens and gives output away, and questions in one call run in parallel. Why the state is where the money is, and how to size a request before you ship it.
Jev Practices & Patterns#pricing#cost#api
Read article
Retrieval with Decisions: Filter, Rerank, and Verify
Retrieval is a sequence of bounded judgments. How a decision model slots into passage filtering, semantic find, reranking, and citation checks, and what stays in deterministic code.
Jev Cookbooks#retrieval#reranking#rag
Read article
Jev in Customer Support: Triage, Routing, and Escalation
Support is a long chain of small judgments over text. Triage category and urgency separately, route with a confidence gate, decompose hard tickets, and decide the action in code.
Jev Practices & Patterns#customer-support#routing#triage
Read article

Watch: Jev in action

Video walkthroughs and demos from the community.

YouTube: Sam Witteveen on System 1 thinking, then Choice, Score, and Noul demos, and chained actions.

YouTube: Nate Herk compares speed and cost against ordinary models, then builds an X feed classifier and a paper-trading prototype.

YouTube: Ray Amjad puts Jev inside an agentic coding loop and looks at what it costs to run.

Discussions about Jev

Threads from Reddit and Hacker News about building with Jev.

Hacker News: OpenAI's Luna Decisions API framed as a fast follow to TypeSafe's Jev wave.

matt_d6 pointsOpenAI Answers TypeSafe's Jev with a Decision API Built on LunaRead the thread on Hacker News

Hacker News: Nikola Balić on what made the Jev launch easy to try and easy to share.

nkko2 pointsWhat TypeSafe Got Right with the Jev LaunchRead the thread on Hacker News

Hacker News: Pointer to a DiffusionGemma plus vLLM tutorial for a Jev-shaped classifier.

1 pointHow to build a Jev-style classifier with DiffusionGemma and vLLMRead the thread on Hacker News

Hacker News: SafeDep Gryph plus Jev checks for compromised coding-agent behavior.

2 pointsDetecting Compromised AI Coding Agents with Jev and GryphRead the thread on Hacker News

From the Jev community

Posts from builders shipping with Jev right now.

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