What it is
r2r-jev is a small Rust integration that turns Jev probabilistic judgments into persistent, replayable governance state for AI agents. It is for developers studying agent governance, evidence admission, and relation-based authorization.
How it uses Jev
Jev judges agent state with two Noul checks per tool call: beyond_scope and destructive. Each judgment becomes typed evidence candidates. Evidence Admission v0.1 accepts, holds, or rejects them; only accepted evidence may change R2R relations (Trust, Delegation, Authorization) that determine enforcement decisions.
Primitives:noul
Technique worth stealing
Separate probabilistic judgment from authority: admit evidence before it can mutate persistent governance relations.
Try it
cargo run -- fixture
Evidence
Each line is one question put to Jev about the README. ≥ 0.60 reads as yes, ≤ 0.40 as no; in between Jev is not making a call.
- Jev-centricyes0.91
- Shows a System One patternyes0.81
- Handles uncertaintyno0.26
- Measuredno0.05
- Runnableyes0.70
- Worth recommendingunclear0.57
- Model replicano0.07
- Problem scopescore on a 0–2 scale1.68
- About Jevyes0.97
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 23 Sept 2026.