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JEV

Open-source directory

Every project here really calls Jev in its source · refreshed daily

Agent tooling · 154 SDKs & clients · 131 Applications · 106 Benchmarks & research · 83 Lists & resources · 56 Games & simulation · 49 Guardrails & review · 47

788projects

182runnable here

765code receipts

ALL 788 PROJECTSEvery project

All788 Agent tooling154 SDKs & clients131 Applications106 Benchmarks & research83 Lists & resources56 Games & simulation49 Guardrails & review47 Browser & computer use42 Open reproductions35 Infrastructure31 Search & retrieval25 Context engineering25 Official4 ▶ Runnable only182

src/context.ts

questions: {
  r0_missing: boolean,
  r0_instruction: boolean,
}

▶ runnable

@compozy★ 18

yoshi

Context-pruning proxy for Claude Code and Codex: Jev judges which history is still needed, measured not claimed. POC here now, heading soon into https://github.com/compozy/compozy

Context engineeringTypeScript

▶ Run it here

skills/jevlogs/examples/measured-evaluator.ts

questions: {
  actionable: boolean,
  priority: choice,
  value: score,
}

▶ runnable

@reachjalil★ 8

jevlogs

Open-source Jev log triage for OpenTelemetry. Score the signal before expensive LLM analysis.

Context engineeringTypeScript

▶ Run it here

tests/cache-identity.test.ts

questions: {
  call_t1: boolean,
}

▶ runnable

@jerryfane★ 7

omp-jev-compaction

Verbatim Jev-scored context reduction for omp, over TypeSafe or OpenRouter

Context engineeringTypeScript

▶ Run it here

src/jev/compare.ts

questions: {
  comparison: choice,
}

▶ runnable

@christian-taillon★ 2

opencode-jev-compactor

Jev powered OpenCode compaction

Context engineeringTypeScript

▶ Run it here

tests/failure.test.ts

questions: {
  ping: boolean,
}

▶ runnable

@konstantinosbotonakis★ 2

codex-context-diet

Codex plugin: Jev-guided dieting of bulky tool results

Context engineeringTypeScript

▶ Run it here

test/integration.test.ts

questions: {
  q: boolean,
}

▶ runnable

@Wang-auspicious★ 1

pi-jev-compaction

Jev-powered context compaction for Pi. Keep critical instructions and tool history, prune the noise, and fall back gracefully.

Context engineeringTypeScript

▶ Run it here

src/request.ts

export const SYSTEM_ONE_URL = 'https://api.typesafe.ai/v1/systemone';

@tamaratran★ 4.4k

fast-jev-compaction

Claude Code plugin that replaces the compaction summary with Jev decisions: every tool call and result is scored in one fast request, stale ones are dropped or truncated, everything kept stays verbatim.

Context engineeringTypeScript

src/invalidate/cli.py

from typesafe_sdk import TypeSafeError

@chopratejas★ 13

invalidate

The invalidation layer for AI memory. Every fact gets a lease; new evidence ends it. Built on TypeSafe Jev.

Context engineeringPython

src/jev_recall/core.py

DEFAULT_BASE_URL = "https://api.typesafe.ai"

@samdotmak★ 13

jev-recall

Retrieve by relevance, not resemblance: filter an AI assistant's memories with TypeSafe's Jev

Context engineeringTypeScript

src/core/request.ts

export const SYSTEM_ONE_URL = "https://api.typesafe.ai/v1/systemone";

@joelhooks★ 5

pi-fast-jev-compaction

Pi extension: verbatim context compaction with TypeSafe Jev decisions

Context engineeringTypeScript

plugins/jev-compact/src/jev/types.ts

export const SYSTEM_ONE_URL = 'https://api.typesafe.ai/v1/systemone'

@fatelei★ 4

jev-compact

Jev-scored context compaction for OpenAI Codex CLI — scores every tool call before compaction and restores critical tool outputs verbatim after it

Context engineeringTypeScript

extensions/fast-jev-core.ts

export const SYSTEM_ONE_URL = "https://api.typesafe.ai/v1/systemone";

@KamilPostrozny★ 2

pi-fast-jev-compaction

Fast JEV compaction extension for pi

Context engineeringTypeScript

src/jev.ts

const ENDPOINT = "https://api.typesafe.ai/v1/systemone";

@kevinpita★ 2

pi-jev-context

Reversible context pruning for Pi, powered by TypeSafe Jev. Keep useful context without deleting session history.

Context engineeringTypeScript

src/jev.ts

const TYPESAFE_URL = "https://api.typesafe.ai/v1/systemone";

@Nyarlathoteppppp★ 2

pi-jev-context

Cache-neutral context trimming for the pi coding agent, powered by TypeSafe Jev: long tool output cut to verbatim key lines before it enters context, with lossless recall. Measured, with pre-registered benchmarks.

Context engineeringTypeScript

index.ts

baseUrl: "https://api.typesafe.ai/v1/systemone",

@QuentinDanblon★ 2

pi-fast-jev-compaction

Verbatim context pruning for the pi coding agent, scored by TypeSafe Jev: stale tool calls and results are dropped or truncated, everything kept stays verbatim.

Context engineeringTypeScript

extensions/curator-jev/config.ts

export const DEFAULT_BASE_URL = "https://api.typesafe.ai";

@Shashank-H★ 2

pi-jev-context-curator

A Jev based context curator for pi

Context engineeringTypeScript

src/jev.ts

export const SYSTEM_ONE_URL = "https://api.typesafe.ai/v1/systemone";

@tvdavies★ 2

pi-fast-compaction

Fast compaction for Pi: Jev-scored verbatim eviction of stale tool history, with LLM summarisation of the evicted transcript as the fallback.

Context engineeringTypeScript

src/jev.js

//   POST https://api.typesafe.ai/v1/systemone

@aegsrl7★ 1

jevmap

Map a codebase into units and let Jev (TypeSafe AI) hand an AI coding agent the ten files that matter for a task

Context engineeringJavaScript

jev_prune/client.py

ENDPOINT = "https://api.typesafe.ai/v1/systemone"

@CompleteTech-LLC-AI-Research★ 1

jev-prune-kit

Capability-aware context-pruning installer, bounded Jev assessment engine, and experimental harness request-projection adapters (experimental, not live-host tested)

Context engineeringPython

src/request.ts

export const SYSTEM_ONE_URL = 'https://api.typesafe.ai/v1/systemone';

@designnotdrum★ 1

fast-jev-compaction-codex

Jev-guided verbatim supplemental compaction for Codex sessions

Context engineeringTypeScript

packages/jev-compactor/src/engine.ts

import type { TypeSafeClient } from '@typesafe-ai/sdk';

@edwardyen724-g★ 1

jev-compactor

Context compaction and safety gating for AI agents via TypeSafe Jev: keeps messages verbatim, no summarization. OpenAI, Anthropic, LangChain, CLI, MCP.

Context engineeringTypeScript

src/openrouter.ts

export const DEFAULT_MODEL = 'typesafe/jev-1.13';

@JayDoubleu★ 1

cc-mod-jev

Claude Code mod: Jev-scored context pruning through OpenRouter. Verbatim compaction, an optional gate on oversized tool outputs, tests and evals.

Context engineeringTypeScript

src/cli.ts

TYPESAFE_BASE_URL       Default https://api.typesafe.ai

@kleosr★ 1

cursor-clijev-compaction

TypeSafe Jev-scored context recovery for Cursor CLI (agent). Capture tool I/O, score keep/drop, re-inject after native compact.

Context engineeringTypeScript

config.ts

baseUrl: "https://api.typesafe.ai/v1/systemone",

@nrdz-labs★ 1

fast-jev-opencode

Jev-scored context pruning for OpenCode: drops stale tool calls and truncates bulky results on the outgoing request — fail-open, cache-backed, configurable live. Port of fast-jev-compaction to the V2 context hook.

Context engineeringTypeScript

src/config.ts

baseUrl: "https://api.typesafe.ai/v1/systemone",

@willfish★ 1

pi-observational-memory-jev

Jev decides what to keep. Compaction never rewrites the transcript.

Context engineeringTypeScript