codex

codex is an agent for coding agents from free-revalution/AIGC-Detector-Pro. It costs 0 tokens per session (124 once invoked), scanned C, original, MIT.

An installation template for adding the Codex command-line agent's instructions to an AGENTS.md file, a Markdown file that Codex reads automatically.

In plain words
What is it for?
Creating or updating the Codex entry in ~/.codex/AGENTS.md and documenting the expected file location, markers, and installation command.
Why use it?
It gives the agent a predictable place and format for storing its instructions, while allowing updates without replacing unrelated content.

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/free-revalution/aigc-detector-pro/codex
Clone the repo
git clone --depth 1 https://github.com/free-revalution/AIGC-Detector-Pro

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 codex

README.md
[![agentmods](https://agentmods.dev/badge/agents/free-revalution/aigc-detector-pro/codex.svg)](https://agentmods.dev/agents/free-revalution/aigc-detector-pro/codex)
Your own site
<a href="https://agentmods.dev/agents/free-revalution/aigc-detector-pro/codex"><img src="https://agentmods.dev/badge/agents/free-revalution/aigc-detector-pro/codex.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 124 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. Scan, not verified.
Origin original 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 $0.00000 $0.00124
Opus 5 $0.00000 $0.00062
Sonnet 5 $0.00000 $0.00025
Haiku 4.5 $0.00000 $0.00012

Measured 5d ago against content hash 0991f0729d0f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

codex scanned grade C with 2 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 5d ago.

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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

- Install command: `curl -sL ... | bash -s -- --agent codex`

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Install command: `curl -sL ... | bash -s -- --agent codex`
agents/codex.md · 20 lines

What it actually says

Codex CLI Entry Template

Location

~/.codex/AGENTS.md

Format

Standard Markdown, append mode (marker-based)

Content

The full content of SKILL.md is embedded between markers:

[Full SKILL.md content here]

Notes

  • Codex reads AGENTS.md automatically from home directory
  • File is created if it doesn't exist, updated if markers already present
  • Install command: curl -sL ... | bash -s -- --agent codex
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. 5d ago First seen · 20 lines · 0 tokens per session scan C 0991f0729d0f

Subscribe to this mod's changes

codex is an agent published in the GitHub repository free-revalution/AIGC-Detector-Pro (122 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 124 tokens. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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