judge-x-codex

judge-x-codex is an agent for coding agents from gutomec/nirvana-os-engine. It costs 106 tokens per session (896 once invoked), scanned A, original, no licence file.

A read-only evaluator for Codex CLI work. It reads the evaluation brief, the success criteria and the proposed result, then creates a scorecard with checkable evidence.

In plain words
What is it for?
It is for automated Codex CLI evaluations that need one scorecard file in a specified output folder.
Why use it?
It separates judging from producing the work, so the result can be reviewed against agreed criteria without the judge changing it.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/gutomec/nirvana-os-engine/judge-x.codex
Clone the repo
git clone --depth 1 https://github.com/gutomec/nirvana-os-engine

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for judge-x-codex

README.md
[![agentmods](https://agentmods.dev/badge/agents/gutomec/nirvana-os-engine/judge-x.codex.svg)](https://agentmods.dev/agents/gutomec/nirvana-os-engine/judge-x.codex)
Your own site
<a href="https://agentmods.dev/agents/gutomec/nirvana-os-engine/judge-x.codex"><img src="https://agentmods.dev/badge/agents/gutomec/nirvana-os-engine/judge-x.codex.svg" alt="Measured on agentmods" height="20"></a>
Per session 106 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 896 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00106 $0.00896
Opus 5 $0.00053 $0.00448
Sonnet 5 $0.00021 $0.00179
Haiku 4.5 $0.00011 $0.00090

Measured yesterday against content hash 62f8179065c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

judge-x-codex scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/_shared/agents/judge-x.codex.md · 42 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday Changed · +16 tokens per session 62f8179065c8
  2. 5d ago First seen · 42 lines · 90 tokens per session scan A 7c21410ecb76

Subscribe to this mod's changes

judge-x-codex is an agent published in the GitHub repository gutomec/nirvana-os-engine (70 stars, last pushed today), with no licence file. It adds 106 tokens to every session and 896 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.