codex

codex is a skill for Codex from MilkyWay008/Hermes-OTG. It costs 17 tokens per session (1,485 once invoked), scanned A, a copy of codex, MIT.

A coding assistant that runs OpenAI Codex from a terminal to work on software projects in a Git repository. It can handle feature work, refactoring, pull-request reviews, and groups of issue fixes.

In plain words
What is it for?
Use it to add features, refactor existing code, review pull requests, or fix several tracked issues in one project.
Why use it?
It removes the need to carry out every coding task manually in the terminal. It also gives you a way to delegate longer or repeated changes to a coding agent.

Skill for Codex

Written for Codex: runs codex exec. Also seen: mentions Codex; built for hermes-agent.

Good fit Use it to add features, refactor existing code, review pull requests, or fix several tracked issues in one project.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/milkyway008/hermes-otg/codex
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.

Any agent
npx skills add MilkyWay008/Hermes-OTG --skill codex
Clone the repo
git clone --depth 1 https://github.com/MilkyWay008/Hermes-OTG

Made for: Codex.

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/skills/milkyway008/hermes-otg/codex.svg)](https://agentmods.dev/skills/milkyway008/hermes-otg/codex)
Your own site
<a href="https://agentmods.dev/skills/milkyway008/hermes-otg/codex"><img src="https://agentmods.dev/badge/skills/milkyway008/hermes-otg/codex.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,485 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 $0.00017 $0.01485
Opus 5 $0.00009 $0.00743
Sonnet 5 $0.00003 $0.00297
Haiku 4.5 $0.00002 $0.00148

Measured 8d ago against content hash 3ed457c2b8d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

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 8d 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.

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.

Origin

This is a copy

100% identical to codex — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

data/skills/autonomous-ai-agents/codex/SKILL.md · 152 lines

How it starts

The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codex CLI

Delegate coding tasks to Codex via the Hermes terminal. Codex is OpenAI's autonomous coding agent CLI.

When to use

  • Building features
  • Refactoring
  • PR reviews
  • Batch issue fixing

Requires the codex CLI and a git repository.

Prerequisites

  • Codex installed: npm install -g @openai/codex
  • OpenAI auth configured: either OPENAI_API_KEY or Codex OAuth credentials from the Codex CLI login flow
  • Must run inside a git repository — Codex refuses to run outside one
  • Use pty=true in terminal calls — Codex is an interactive terminal app

For Hermes itself, model.provider: openai-codex uses Hermes-managed Codex OAuth from ~/.hermes/auth.json after hermes auth add openai-codex. For the standalone Codex CLI, a valid CLI OAuth session may live under ~/.codex/auth.json; do not treat a missing OPENAI_API_KEY alone as proof that Codex auth is missing.

One-Shot Tasks

terminal(command="codex exec 'Add dark mode toggle to settings'", workdir="~/project", pty=true)

For scratch work (Codex needs a git repo):

terminal(command="cd $(mktemp -d) && git init && codex exec 'Build a snake game in Python'", pty=true)

Background Mode (Long Tasks)

# Start in background with PTY
terminal(command="codex exec --sandbox workspace-write 'Refactor the auth module'", workdir="~/project", background=true, pty=true)
# Returns session_id

# Monitor progress
process(action="poll", session_id="<id>")
process(action="log", session_id="<id>")

# Send input if Codex asks a question
process(action="submit", session_id="<id>", data="yes")

# Kill if needed
process(action="kill", session_id="<id>")

Key Flags

Flag Effect
exec "prompt" One-shot execution, exits when done
--sandbox workspace-write (-s) Sandboxed but auto-approves file changes in the workspace (the recommended auto-build mode)
--dangerously-bypass-approvals-and-sandbox No sandbox, no approvals (fastest, most dangerous; --yolo still works as a hidden alias)
--sandbox danger-full-access No Codex sandbox; useful when the host service context breaks bubblewrap

Read the full file on GitHub · 152 lines

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. 8d ago First seen · 152 lines · 17 tokens per session scan A 3ed457c2b8d5

Subscribe to this mod's changes

codex is a skill published in the GitHub repository MilkyWay008/Hermes-OTG (15 stars, last pushed 24d ago), licensed MIT. It adds 17 tokens to every session and 1,485 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to codex, differing in 0 lines, and is treated as a copy.

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