What it is
jev-axi is a CLI that gives coding agents a second opinion using TypeSafe's Jev, a model that answers typed questions with calibrated probabilities instead of text. It provides commands like pick, rate, check, rank, triage, and guard, plus a safety hook for Claude Code and Codex.
How it uses Jev
Jev scores shell commands for destructiveness, exfiltration, remote code execution, and security weakening. Routine commands are decided locally; others are sent to Jev with credentials redacted. The resulting probabilities drive allow, ask, or block decisions in the PreToolUse hook.
Primitives:choicescorenoul
Technique worth stealing
Local pre-filtering of routine commands so only risky ones reach Jev, keeping cost and latency near zero.
Try it
echo '{"tool_name":"Bash","tool_input":{"command":"pnpm test"}}' | jev-axi hook pre-tool-use --explain
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-centricyes0.94
- Shows a System One patternyes0.89
- Handles uncertaintyno0.08
- Measuredyes0.96
- Runnableyes0.98
- Worth recommendingunclear0.59
- Model replicano0.03
- Problem scopescore on a 0–2 scale1.58
- About Jevyes0.98
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.